MAPREDUCE-2863. Support web services for YARN and MR components. (Thomas Graves via vinodkv)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1213975 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/CHANGES.txt

@@ -85,6 +85,9 @@ Release 0.23.1 - Unreleased
    
    MAPREDUCE-3121. NodeManager should handle disk-failures (Ravi Gummadi via mahadev)
 
+   MAPREDUCE-2863. Support web services for YARN and MR components. (Thomas
+   Graves via vinodkv)
+
   IMPROVEMENTS
 
     MAPREDUCE-3297. Moved log related components into yarn-common so that

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/client/MRClientService.java

@@ -151,7 +151,7 @@ public class MRClientService extends AbstractService
             + ":" + server.getPort());
     LOG.info("Instantiated MRClientService at " + this.bindAddress);
     try {
-      webApp = WebApps.$for("mapreduce", AppContext.class, appContext).with(conf).
+      webApp = WebApps.$for("mapreduce", AppContext.class, appContext, "ws").with(conf).
           start(new AMWebApp());
     } catch (Exception e) {
       LOG.error("Webapps failed to start. Ignoring for now:", e);

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/AMWebApp.java

@@ -18,8 +18,9 @@
 
 package org.apache.hadoop.mapreduce.v2.app.webapp;
 
-import static org.apache.hadoop.yarn.util.StringHelper.*;
+import static org.apache.hadoop.yarn.util.StringHelper.pajoin;
 
+import org.apache.hadoop.yarn.webapp.GenericExceptionHandler;
 import org.apache.hadoop.yarn.webapp.WebApp;
 
 /**
@@ -29,6 +30,9 @@ public class AMWebApp extends WebApp implements AMParams {
 
   @Override
   public void setup() {
+    bind(JAXBContextResolver.class);
+    bind(GenericExceptionHandler.class);
+    bind(AMWebServices.class);
     route("/", AppController.class);
     route("/app", AppController.class);
     route(pajoin("/job", JOB_ID), AppController.class, "job");

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/AMWebServices.java

@@ -0,0 +1,362 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.mapreduce.v2.app.webapp;
+
+import java.io.IOException;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.QueryParam;
+import javax.ws.rs.WebApplicationException;
+import javax.ws.rs.core.Context;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response.Status;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.mapreduce.JobACL;
+import org.apache.hadoop.mapreduce.v2.api.records.JobId;
+import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId;
+import org.apache.hadoop.mapreduce.v2.api.records.TaskId;
+import org.apache.hadoop.mapreduce.v2.api.records.TaskType;
+import org.apache.hadoop.mapreduce.v2.app.AppContext;
+import org.apache.hadoop.mapreduce.v2.app.job.Job;
+import org.apache.hadoop.mapreduce.v2.app.job.Task;
+import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.AppInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ConfInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobCounterInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobTaskAttemptCounterInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobTaskCounterInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobsInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ReduceTaskAttemptInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskAttemptInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskAttemptsInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TasksInfo;
+import org.apache.hadoop.mapreduce.v2.util.MRApps;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.yarn.YarnException;
+import org.apache.hadoop.yarn.webapp.BadRequestException;
+import org.apache.hadoop.yarn.webapp.NotFoundException;
+
+import com.google.inject.Inject;
+
+@Path("/ws/v1/mapreduce")
+public class AMWebServices {
+  private final AppContext appCtx;
+  private final App app;
+  private final Configuration conf;
+
+  @Inject
+  public AMWebServices(final App app, final AppContext context,
+      final Configuration conf) {
+    this.appCtx = context;
+    this.app = app;
+    this.conf = conf;
+  }
+
+  Boolean hasAccess(Job job, HttpServletRequest request) {
+    UserGroupInformation callerUgi = UserGroupInformation
+        .createRemoteUser(request.getRemoteUser());
+    if (!job.checkAccess(callerUgi, JobACL.VIEW_JOB)) {
+      return false;
+    }
+    return true;
+  }
+
+  /**
+   * check for job access.
+   *
+   * @param job
+   *          the job that is being accessed
+   */
+  void checkAccess(Job job, HttpServletRequest request) {
+    if (!hasAccess(job, request)) {
+      throw new WebApplicationException(Status.UNAUTHORIZED);
+    }
+  }
+
+  @GET
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public AppInfo get() {
+    return getAppInfo();
+  }
+
+  @GET
+  @Path("/info")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public AppInfo getAppInfo() {
+    return new AppInfo(this.app, this.app.context);
+  }
+
+  @GET
+  @Path("/jobs")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public JobsInfo getJobs(@Context HttpServletRequest hsr) {
+    JobsInfo allJobs = new JobsInfo();
+    for (Job job : appCtx.getAllJobs().values()) {
+      // getAllJobs only gives you a partial we want a full
+      Job fullJob = appCtx.getJob(job.getID());
+      if (fullJob == null) {
+        continue;
+      }
+      allJobs.add(new JobInfo(fullJob, hasAccess(fullJob, hsr)));
+    }
+    return allJobs;
+  }
+
+  @GET
+  @Path("/jobs/{jobid}")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public JobInfo getJob(@Context HttpServletRequest hsr,
+      @PathParam("jobid") String jid) {
+    JobId jobId = MRApps.toJobID(jid);
+    if (jobId == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    Job job = appCtx.getJob(jobId);
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    return new JobInfo(job, hasAccess(job, hsr));
+
+  }
+
+  @GET
+  @Path("/jobs/{jobid}/counters")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public JobCounterInfo getJobCounters(@Context HttpServletRequest hsr,
+      @PathParam("jobid") String jid) {
+    JobId jobId = MRApps.toJobID(jid);
+    if (jobId == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    Job job = appCtx.getJob(jobId);
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    checkAccess(job, hsr);
+    return new JobCounterInfo(this.appCtx, job);
+  }
+
+  @GET
+  @Path("/jobs/{jobid}/tasks/{taskid}/counters")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public JobTaskCounterInfo getSingleTaskCounters(
+      @Context HttpServletRequest hsr, @PathParam("jobid") String jid,
+      @PathParam("taskid") String tid) {
+    JobId jobId = MRApps.toJobID(jid);
+    if (jobId == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    Job job = this.appCtx.getJob(jobId);
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    checkAccess(job, hsr);
+    TaskId taskID = MRApps.toTaskID(tid);
+    if (taskID == null) {
+      throw new NotFoundException("taskid " + tid + " not found or invalid");
+    }
+    Task task = job.getTask(taskID);
+    if (task == null) {
+      throw new NotFoundException("task not found with id " + tid);
+    }
+    return new JobTaskCounterInfo(task);
+  }
+
+  @GET
+  @Path("/jobs/{jobid}/conf")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public ConfInfo getJobConf(@Context HttpServletRequest hsr,
+      @PathParam("jobid") String jid) {
+    JobId jobId = MRApps.toJobID(jid);
+    if (jobId == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    Job job = appCtx.getJob(jobId);
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    checkAccess(job, hsr);
+    ConfInfo info;
+    try {
+      info = new ConfInfo(job, this.conf);
+    } catch (IOException e) {
+      throw new NotFoundException("unable to load configuration for job: " + jid);
+    }
+    return info;
+  }
+
+  @GET
+  @Path("/jobs/{jobid}/tasks")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public TasksInfo getJobTasks(@Context HttpServletRequest hsr,
+      @PathParam("jobid") String jid, @QueryParam("type") String type) {
+    Job job = this.appCtx.getJob(MRApps.toJobID(jid));
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    checkAccess(job, hsr);
+    TasksInfo allTasks = new TasksInfo();
+    for (Task task : job.getTasks().values()) {
+      TaskType ttype = null;
+      if (type != null && !type.isEmpty()) {
+        try {
+          ttype = MRApps.taskType(type);
+        } catch (YarnException e) {
+          throw new BadRequestException("tasktype must be either m or r");        }
+      }
+      if (ttype != null && task.getType() != ttype) {
+        continue;
+      }
+      allTasks.add(new TaskInfo(task));
+    }
+    return allTasks;
+  }
+
+  @GET
+  @Path("/jobs/{jobid}/tasks/{taskid}")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public TaskInfo getJobTask(@Context HttpServletRequest hsr,
+      @PathParam("jobid") String jid, @PathParam("taskid") String tid) {
+    Job job = this.appCtx.getJob(MRApps.toJobID(jid));
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    checkAccess(job, hsr);
+    TaskId taskID = MRApps.toTaskID(tid);
+    if (taskID == null) {
+      throw new NotFoundException("taskid " + tid + " not found or invalid");
+    }
+    Task task = job.getTask(taskID);
+    if (task == null) {
+      throw new NotFoundException("task not found with id " + tid);
+    }
+    return new TaskInfo(task);
+
+  }
+
+  @GET
+  @Path("/jobs/{jobid}/tasks/{taskid}/attempts")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public TaskAttemptsInfo getJobTaskAttempts(@Context HttpServletRequest hsr,
+      @PathParam("jobid") String jid, @PathParam("taskid") String tid) {
+    TaskAttemptsInfo attempts = new TaskAttemptsInfo();
+    Job job = this.appCtx.getJob(MRApps.toJobID(jid));
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    checkAccess(job, hsr);
+    TaskId taskID = MRApps.toTaskID(tid);
+    if (taskID == null) {
+      throw new NotFoundException("taskid " + tid + " not found or invalid");
+    }
+    Task task = job.getTask(taskID);
+    if (task == null) {
+      throw new NotFoundException("task not found with id " + tid);
+    }
+    for (TaskAttempt ta : task.getAttempts().values()) {
+      if (ta != null) {
+        if (task.getType() == TaskType.REDUCE) {
+          attempts.add(new ReduceTaskAttemptInfo(ta, task.getType()));
+        } else {
+          attempts.add(new TaskAttemptInfo(ta, task.getType(), true));
+        }
+      }
+    }
+    return attempts;
+  }
+
+  @GET
+  @Path("/jobs/{jobid}/tasks/{taskid}/attempts/{attemptid}")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public TaskAttemptInfo getJobTaskAttemptId(@Context HttpServletRequest hsr,
+      @PathParam("jobid") String jid, @PathParam("taskid") String tid,
+      @PathParam("attemptid") String attId) {
+    Job job = this.appCtx.getJob(MRApps.toJobID(jid));
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    checkAccess(job, hsr);
+    TaskId taskID = MRApps.toTaskID(tid);
+    if (taskID == null) {
+      throw new NotFoundException("taskid " + tid + " not found or invalid");
+    }
+    Task task = job.getTask(taskID);
+    if (task == null) {
+      throw new NotFoundException("task not found with id " + tid);
+    }
+    TaskAttemptId attemptId = MRApps.toTaskAttemptID(attId);
+    if (attemptId == null) {
+      throw new NotFoundException("task attempt id " + attId
+          + " not found or invalid");
+    }
+    TaskAttempt ta = task.getAttempt(attemptId);
+    if (ta == null) {
+      throw new NotFoundException("Error getting info on task attempt id "
+          + attId);
+    }
+    if (task.getType() == TaskType.REDUCE) {
+      return new ReduceTaskAttemptInfo(ta, task.getType());
+    } else {
+      return new TaskAttemptInfo(ta, task.getType(), true);
+    }
+  }
+
+  @GET
+  @Path("/jobs/{jobid}/tasks/{taskid}/attempts/{attemptid}/counters")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public JobTaskAttemptCounterInfo getJobTaskAttemptIdCounters(
+      @Context HttpServletRequest hsr, @PathParam("jobid") String jid,
+      @PathParam("taskid") String tid, @PathParam("attemptid") String attId) {
+    JobId jobId = MRApps.toJobID(jid);
+    if (jobId == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    Job job = this.appCtx.getJob(jobId);
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    checkAccess(job, hsr);
+    TaskId taskID = MRApps.toTaskID(tid);
+    if (taskID == null) {
+      throw new NotFoundException("taskid " + tid + " not found or invalid");
+    }
+    Task task = job.getTask(taskID);
+    if (task == null) {
+      throw new NotFoundException("task not found with id " + tid);
+    }
+    TaskAttemptId attemptId = MRApps.toTaskAttemptID(attId);
+    if (attemptId == null) {
+      throw new NotFoundException("task attempt id " + attId
+          + " not found or invalid");
+    }
+    TaskAttempt ta = task.getAttempt(attemptId);
+    if (ta == null) {
+      throw new NotFoundException("Error getting info on task attempt id "
+          + attId);
+    }
+    return new JobTaskAttemptCounterInfo(ta);
+  }
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/AppController.java

@@ -32,6 +32,7 @@ import org.apache.hadoop.mapreduce.JobACL;
 import org.apache.hadoop.mapreduce.v2.api.records.JobId;
 import org.apache.hadoop.mapreduce.v2.api.records.TaskId;
 import org.apache.hadoop.mapreduce.v2.app.job.Job;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.AppInfo;
 import org.apache.hadoop.mapreduce.v2.util.MRApps;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
@@ -72,13 +73,14 @@ public class AppController extends Controller implements AMParams {
    * Render the /info page with an overview of current application.
    */
   public void info() {
+    AppInfo info = new AppInfo(app, app.context);
     info("Application Master Overview").
-      _("Application ID:", $(APP_ID)).
-      _("Application Name:", app.context.getApplicationName()).
-      _("User:", app.context.getUser()).
-      _("Started on:", Times.format(app.context.getStartTime())).
+      _("Application ID:", info.getId()).
+      _("Application Name:", info.getName()).
+      _("User:", info.getUser()).
+      _("Started on:", Times.format(info.getStartTime())).
       _("Elasped: ", org.apache.hadoop.util.StringUtils.formatTime(
-        Times.elapsed(app.context.getStartTime(), 0)));
+          info.getElapsedTime() ));
     render(InfoPage.class);
   }
 

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/ConfBlock.java

@@ -22,14 +22,14 @@ import static org.apache.hadoop.mapreduce.v2.app.webapp.AMParams.JOB_ID;
 import static org.apache.hadoop.yarn.webapp.view.JQueryUI._TH;
 
 import java.io.IOException;
-import java.util.Map;
 
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.fs.FileContext;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.mapreduce.v2.api.records.JobId;
 import org.apache.hadoop.mapreduce.v2.app.AppContext;
 import org.apache.hadoop.mapreduce.v2.app.job.Job;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ConfEntryInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ConfInfo;
 import org.apache.hadoop.mapreduce.v2.util.MRApps;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TABLE;
@@ -71,11 +71,8 @@ public class ConfBlock extends HtmlBlock {
     }
     Path confPath = job.getConfFile();
     try {
-      //Read in the configuration file and put it in a key/value table.
-      FileContext fc = FileContext.getFileContext(confPath.toUri(), conf);
-      Configuration jobConf = new Configuration(false);
-      jobConf.addResource(fc.open(confPath));
-    
+      ConfInfo info = new ConfInfo(job, this.conf);
+
       html.div().h3(confPath.toString())._();
       TBODY<TABLE<Hamlet>> tbody = html.
         // Tasks table
@@ -87,10 +84,10 @@ public class ConfBlock extends HtmlBlock {
           _().
         _().
       tbody();
-      for(Map.Entry<String, String> entry : jobConf) {
+      for (ConfEntryInfo entry : info.getProperties()) {
         tbody.
           tr().
-            td(entry.getKey()).
+            td(entry.getName()).
             td(entry.getValue()).
           _();
       }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/JAXBContextResolver.java

@@ -0,0 +1,77 @@
+/**
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package org.apache.hadoop.mapreduce.v2.app.webapp;
+
+import java.util.Set;
+import java.util.HashSet;
+import java.util.Arrays;
+
+import com.sun.jersey.api.json.JSONConfiguration;
+import com.sun.jersey.api.json.JSONJAXBContext;
+import com.google.inject.Singleton;
+
+import javax.ws.rs.ext.ContextResolver;
+import javax.ws.rs.ext.Provider;
+import javax.xml.bind.JAXBContext;
+
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.AppInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ConfInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ConfEntryInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.CounterGroupInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.CounterInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobCounterInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobsInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobTaskAttemptCounterInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobTaskCounterInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ReduceTaskAttemptInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskAttemptInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskAttemptsInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskCounterGroupInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskCounterInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TasksInfo;
+
+@Singleton
+@Provider
+public class JAXBContextResolver implements ContextResolver<JAXBContext> {
+
+  private JAXBContext context;
+  private final Set<Class> types;
+    
+  // you have to specify all the dao classes here
+  private final Class[] cTypes = {AppInfo.class, CounterInfo.class,
+      JobTaskAttemptCounterInfo.class, JobTaskCounterInfo.class,
+      TaskCounterGroupInfo.class, ConfInfo.class, JobCounterInfo.class,
+      TaskCounterInfo.class, CounterGroupInfo.class, JobInfo.class, 
+      JobsInfo.class, ReduceTaskAttemptInfo.class, TaskAttemptInfo.class,
+      TaskInfo.class, TasksInfo.class, TaskAttemptsInfo.class,
+      ConfEntryInfo.class};
+    
+  public JAXBContextResolver() throws Exception {
+    this.types = new HashSet<Class>(Arrays.asList(cTypes));
+    this.context = new JSONJAXBContext(JSONConfiguration.natural().
+        rootUnwrapping(false).build(), cTypes);
+  }
+    
+  @Override
+  public JAXBContext getContext(Class<?> objectType) {
+    return (types.contains(objectType)) ? context : null;
+  }
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/JobBlock.java

@@ -18,47 +18,32 @@
 
 package org.apache.hadoop.mapreduce.v2.app.webapp;
 
-import com.google.inject.Inject;
+import static org.apache.hadoop.mapreduce.v2.app.webapp.AMParams.JOB_ID;
+import static org.apache.hadoop.yarn.util.StringHelper.join;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI._EVEN;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI._INFO_WRAP;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI._ODD;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI._PROGRESSBAR;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI._PROGRESSBAR_VALUE;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI._TH;
+
 import java.util.Date;
-import java.util.Map;
 
 import org.apache.hadoop.mapreduce.v2.api.records.JobId;
-import org.apache.hadoop.mapreduce.v2.api.records.JobReport;
-import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId;
-import org.apache.hadoop.mapreduce.v2.api.records.TaskId;
 import org.apache.hadoop.mapreduce.v2.app.AppContext;
 import org.apache.hadoop.mapreduce.v2.app.job.Job;
-import org.apache.hadoop.mapreduce.v2.app.job.Task;
-import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobInfo;
 import org.apache.hadoop.mapreduce.v2.util.MRApps;
 import org.apache.hadoop.mapreduce.v2.util.MRApps.TaskAttemptStateUI;
 import org.apache.hadoop.util.StringUtils;
-import org.apache.hadoop.yarn.util.Times;
 import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
 import org.apache.hadoop.yarn.webapp.view.InfoBlock;
-import static org.apache.hadoop.mapreduce.v2.app.webapp.AMWebApp.*;
-import static org.apache.hadoop.yarn.util.StringHelper.*;
-import static org.apache.hadoop.yarn.webapp.view.JQueryUI.*;
+
+import com.google.inject.Inject;
 
 public class JobBlock extends HtmlBlock {
   final AppContext appContext;
 
-  int runningMapTasks = 0;
-  int pendingMapTasks = 0;
-  int runningReduceTasks = 0;
-  int pendingReduceTasks = 0;
-
-  int newMapAttempts = 0;
-  int runningMapAttempts = 0;
-  int killedMapAttempts = 0;
-  int failedMapAttempts = 0;
-  int successfulMapAttempts = 0;
-  int newReduceAttempts = 0;
-  int runningReduceAttempts = 0;
-  int killedReduceAttempts = 0;
-  int failedReduceAttempts = 0;
-  int successfulReduceAttempts = 0;
-
   @Inject JobBlock(AppContext appctx) {
     appContext = appctx;
   }
@@ -77,23 +62,13 @@ public class JobBlock extends HtmlBlock {
         p()._("Sorry, ", jid, " not found.")._();
       return;
     }
-    JobReport jobReport = job.getReport();
-    String mapPct = percent(jobReport.getMapProgress());
-    String reducePct = percent(jobReport.getReduceProgress());
-    int mapTasks = job.getTotalMaps();
-    int mapTasksComplete = job.getCompletedMaps();
-    int reduceTasks = job.getTotalReduces();
-    int reducesTasksComplete = job.getCompletedReduces();
-    long startTime = jobReport.getStartTime();
-    long finishTime = jobReport.getFinishTime();
-    countTasksAndAttempts(job);
+    JobInfo jinfo = new JobInfo(job, true);
     info("Job Overview").
-        _("Job Name:", job.getName()).
-        _("State:", job.getState()).
-        _("Uberized:", job.isUber()).
-        _("Started:", new Date(startTime)).
-        _("Elapsed:", StringUtils.formatTime(
-            Times.elapsed(startTime, finishTime)));
+        _("Job Name:", jinfo.getName()).
+        _("State:", jinfo.getState()).
+        _("Uberized:", jinfo.isUberized()).
+        _("Started:", new Date(jinfo.getStartTime())).
+        _("Elapsed:", StringUtils.formatTime(jinfo.getElapsedTime()));
     html.
       _(InfoBlock.class).
       div(_INFO_WRAP).
@@ -112,25 +87,25 @@ public class JobBlock extends HtmlBlock {
               a(url("tasks", jid, "m"), "Map")._().
             td().
               div(_PROGRESSBAR).
-                $title(join(mapPct, '%')). // tooltip
+                $title(join(jinfo.getMapProgressPercent(), '%')). // tooltip
                 div(_PROGRESSBAR_VALUE).
-                  $style(join("width:", mapPct, '%'))._()._()._().
-            td(String.valueOf(mapTasks)).
-            td(String.valueOf(pendingMapTasks)).
-            td(String.valueOf(runningMapTasks)).
-            td(String.valueOf(mapTasksComplete))._().
+                  $style(join("width:", jinfo.getMapProgressPercent(), '%'))._()._()._().
+            td(String.valueOf(jinfo.getMapsTotal())).
+            td(String.valueOf(jinfo.getMapsPending())).
+            td(String.valueOf(jinfo.getMapsRunning())).
+            td(String.valueOf(jinfo.getMapsCompleted()))._().
           tr(_EVEN).
             th().
               a(url("tasks", jid, "r"), "Reduce")._().
             td().
               div(_PROGRESSBAR).
-                $title(join(reducePct, '%')). // tooltip
+                $title(join(jinfo.getReduceProgressPercent(), '%')). // tooltip
                 div(_PROGRESSBAR_VALUE).
-                  $style(join("width:", reducePct, '%'))._()._()._().
-            td(String.valueOf(reduceTasks)).
-            td(String.valueOf(pendingReduceTasks)).
-            td(String.valueOf(runningReduceTasks)).
-            td(String.valueOf(reducesTasksComplete))._()
+                  $style(join("width:", jinfo.getReduceProgressPercent(), '%'))._()._()._().
+            td(String.valueOf(jinfo.getReducesTotal())).
+            td(String.valueOf(jinfo.getReducesPending())).
+            td(String.valueOf(jinfo.getReducesRunning())).
+            td(String.valueOf(jinfo.getReducesCompleted()))._()
           ._().
 
         // Attempts table
@@ -145,110 +120,41 @@ public class JobBlock extends HtmlBlock {
         tr(_ODD).
           th("Maps").
           td().a(url("attempts", jid, "m",
-              TaskAttemptStateUI.NEW.toString()), 
-              String.valueOf(newMapAttempts))._().
+              TaskAttemptStateUI.NEW.toString()),
+              String.valueOf(jinfo.getNewMapAttempts()))._().
           td().a(url("attempts", jid, "m",
-              TaskAttemptStateUI.RUNNING.toString()), 
-              String.valueOf(runningMapAttempts))._().
+              TaskAttemptStateUI.RUNNING.toString()),
+              String.valueOf(jinfo.getRunningMapAttempts()))._().
           td().a(url("attempts", jid, "m",
-              TaskAttemptStateUI.FAILED.toString()), 
-              String.valueOf(failedMapAttempts))._().
+              TaskAttemptStateUI.FAILED.toString()),
+              String.valueOf(jinfo.getFailedMapAttempts()))._().
           td().a(url("attempts", jid, "m",
-              TaskAttemptStateUI.KILLED.toString()), 
-              String.valueOf(killedMapAttempts))._().
+              TaskAttemptStateUI.KILLED.toString()),
+              String.valueOf(jinfo.getKilledMapAttempts()))._().
           td().a(url("attempts", jid, "m",
-              TaskAttemptStateUI.SUCCESSFUL.toString()), 
-              String.valueOf(successfulMapAttempts))._().
+              TaskAttemptStateUI.SUCCESSFUL.toString()),
+              String.valueOf(jinfo.getSuccessfulMapAttempts()))._().
         _().
         tr(_EVEN).
           th("Reduces").
           td().a(url("attempts", jid, "r",
-              TaskAttemptStateUI.NEW.toString()), 
-              String.valueOf(newReduceAttempts))._().
+              TaskAttemptStateUI.NEW.toString()),
+              String.valueOf(jinfo.getNewReduceAttempts()))._().
           td().a(url("attempts", jid, "r",
-              TaskAttemptStateUI.RUNNING.toString()), 
-              String.valueOf(runningReduceAttempts))._().
+              TaskAttemptStateUI.RUNNING.toString()),
+              String.valueOf(jinfo.getRunningReduceAttempts()))._().
           td().a(url("attempts", jid, "r",
-              TaskAttemptStateUI.FAILED.toString()), 
-              String.valueOf(failedReduceAttempts))._().
+              TaskAttemptStateUI.FAILED.toString()),
+              String.valueOf(jinfo.getFailedReduceAttempts()))._().
           td().a(url("attempts", jid, "r",
-              TaskAttemptStateUI.KILLED.toString()), 
-              String.valueOf(killedReduceAttempts))._().
+              TaskAttemptStateUI.KILLED.toString()),
+              String.valueOf(jinfo.getKilledReduceAttempts()))._().
           td().a(url("attempts", jid, "r",
-              TaskAttemptStateUI.SUCCESSFUL.toString()), 
-              String.valueOf(successfulReduceAttempts))._().
+              TaskAttemptStateUI.SUCCESSFUL.toString()),
+              String.valueOf(jinfo.getSuccessfulReduceAttempts()))._().
          _().
        _().
      _();
   }
 
-  private void countTasksAndAttempts(Job job) {
-    Map<TaskId, Task> tasks = job.getTasks();
-    for (Task task : tasks.values()) {
-      switch (task.getType()) {
-      case MAP:
-        // Task counts
-        switch (task.getState()) {
-        case RUNNING:
-          ++runningMapTasks;
-          break;
-        case SCHEDULED:
-          ++pendingMapTasks;
-          break;
-        }
-        break;
-      case REDUCE:
-        // Task counts
-        switch (task.getState()) {
-        case RUNNING:
-          ++runningReduceTasks;
-          break;
-        case SCHEDULED:
-          ++pendingReduceTasks;
-          break;
-        }
-        break;
-      }
-
-      // Attempts counts
-      Map<TaskAttemptId, TaskAttempt> attempts = task.getAttempts();
-      for (TaskAttempt attempt : attempts.values()) {
-
-        int newAttempts = 0, running = 0, successful = 0, failed = 0, killed =0;
-
-        if (TaskAttemptStateUI.NEW.correspondsTo(attempt.getState())) {
-          ++newAttempts;
-        } else if (TaskAttemptStateUI.RUNNING.correspondsTo(attempt
-            .getState())) {
-          ++running;
-        } else if (TaskAttemptStateUI.SUCCESSFUL.correspondsTo(attempt
-            .getState())) {
-          ++successful;
-        } else if (TaskAttemptStateUI.FAILED
-            .correspondsTo(attempt.getState())) {
-          ++failed;
-        } else if (TaskAttemptStateUI.KILLED
-            .correspondsTo(attempt.getState())) {
-          ++killed;
-        }
-
-        switch (task.getType()) {
-        case MAP:
-          newMapAttempts += newAttempts;
-          runningMapAttempts += running;
-          successfulMapAttempts += successful;
-          failedMapAttempts += failed;
-          killedMapAttempts += killed;
-          break;
-        case REDUCE:
-          newReduceAttempts += newAttempts;
-          runningReduceAttempts += running;
-          successfulReduceAttempts += successful;
-          failedReduceAttempts += failed;
-          killedReduceAttempts += killed;
-          break;
-        }
-      }
-    }
-  }
 }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/JobsBlock.java

@@ -18,18 +18,19 @@
 
 package org.apache.hadoop.mapreduce.v2.app.webapp;
 
-import com.google.inject.Inject;
+import static org.apache.hadoop.yarn.util.StringHelper.join;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI._PROGRESSBAR;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI._PROGRESSBAR_VALUE;
 
-import org.apache.hadoop.mapreduce.v2.api.records.JobReport;
 import org.apache.hadoop.mapreduce.v2.app.AppContext;
 import org.apache.hadoop.mapreduce.v2.app.job.Job;
-import org.apache.hadoop.mapreduce.v2.util.MRApps;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobInfo;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
-import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.*;
+import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TABLE;
+import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TBODY;
 import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
 
-import static org.apache.hadoop.yarn.util.StringHelper.*;
-import static org.apache.hadoop.yarn.webapp.view.JQueryUI.*;
+import com.google.inject.Inject;
 
 public class JobsBlock extends HtmlBlock {
   final AppContext appContext;
@@ -54,38 +55,31 @@ public class JobsBlock extends HtmlBlock {
             th("Reduces Total").
             th("Reduces Completed")._()._().
         tbody();
-    for (Job job : appContext.getAllJobs().values()) {
-      String jobID = MRApps.toString(job.getID());
-      JobReport report = job.getReport();
-      String mapPct = percent(report.getMapProgress());
-      String mapsTotal = String.valueOf(job.getTotalMaps());
-      String mapsCompleted = String.valueOf(job.getCompletedMaps());
-      String reducePct = percent(report.getReduceProgress());
-      String reduceTotal = String.valueOf(job.getTotalReduces());
-      String reduceCompleted = String.valueOf(job.getCompletedReduces());
+    for (Job j : appContext.getAllJobs().values()) {
+      JobInfo job = new JobInfo(j, false);
       tbody.
         tr().
           td().
-            span().$title(String.valueOf(job.getID().getId()))._(). // for sorting
-            a(url("job", jobID), jobID)._().
-          td(job.getName().toString()).
-          td(job.getState().toString()).
+            span().$title(String.valueOf(job.getId()))._(). // for sorting
+            a(url("job", job.getId()), job.getId())._().
+          td(job.getName()).
+          td(job.getState()).
           td().
-            span().$title(mapPct)._(). // for sorting
+            span().$title(job.getMapProgressPercent())._(). // for sorting
             div(_PROGRESSBAR).
-              $title(join(mapPct, '%')). // tooltip
+              $title(join(job.getMapProgressPercent(), '%')). // tooltip
               div(_PROGRESSBAR_VALUE).
-                $style(join("width:", mapPct, '%'))._()._()._().
-          td(mapsTotal).
-          td(mapsCompleted).
+                $style(join("width:", job.getMapProgressPercent(), '%'))._()._()._().
+          td(String.valueOf(job.getMapsTotal())).
+          td(String.valueOf(job.getMapsCompleted())).
           td().
-            span().$title(reducePct)._(). // for sorting
+            span().$title(job.getReduceProgressPercent())._(). // for sorting
             div(_PROGRESSBAR).
-              $title(join(reducePct, '%')). // tooltip
+              $title(join(job.getReduceProgressPercent(), '%')). // tooltip
               div(_PROGRESSBAR_VALUE).
-                $style(join("width:", reducePct, '%'))._()._()._().
-          td(reduceTotal).
-          td(reduceCompleted)._();
+                $style(join("width:", job.getReduceProgressPercent(), '%'))._()._()._().
+          td(String.valueOf(job.getReducesTotal())).
+          td(String.valueOf(job.getReducesCompleted()))._();
     }
     tbody._()._();
   }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/TaskPage.java

@@ -18,23 +18,29 @@
 
 package org.apache.hadoop.mapreduce.v2.app.webapp;
 
-import java.util.Collection;
+import static org.apache.hadoop.yarn.util.StringHelper.percent;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI.ACCORDION;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI.DATATABLES;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI.DATATABLES_ID;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI.initID;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI.tableInit;
 
-import com.google.common.base.Joiner;
-import com.google.inject.Inject;
+import java.util.Collection;
 
 import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
-import org.apache.hadoop.mapreduce.v2.util.MRApps;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskAttemptInfo;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.api.records.ContainerId;
-import org.apache.hadoop.yarn.util.ConverterUtils;
 import org.apache.hadoop.yarn.util.Times;
 import org.apache.hadoop.yarn.webapp.SubView;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
-import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.*;
+import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TABLE;
+import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TBODY;
+import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TD;
+import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TR;
 import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
-import static org.apache.hadoop.yarn.util.StringHelper.*;
-import static org.apache.hadoop.yarn.webapp.view.JQueryUI.*;
+
+import com.google.inject.Inject;
 
 public class TaskPage extends AppView {
 
@@ -66,24 +72,26 @@ public class TaskPage extends AppView {
             th(".tsh", "Elapsed").
             th(".note", "Note")._()._().
         tbody();
-      for (TaskAttempt ta : getTaskAttempts()) {
-        String taid = MRApps.toString(ta.getID());
-        String progress = percent(ta.getProgress());
-        ContainerId containerId = ta.getAssignedContainerID();
+      for (TaskAttempt attempt : getTaskAttempts()) {
+        TaskAttemptInfo ta = new TaskAttemptInfo(attempt, true);
+        String taid = ta.getId();
+        String progress = percent(ta.getProgress() / 100);
+        ContainerId containerId = ta.getAssignedContainerId();
 
-        String nodeHttpAddr = ta.getNodeHttpAddress();
-        long startTime = ta.getLaunchTime();
+        String nodeHttpAddr = ta.getNode();
+        long startTime = ta.getStartTime();
         long finishTime = ta.getFinishTime();
-        long elapsed = Times.elapsed(startTime, finishTime);
+        long elapsed = ta.getElapsedTime();
+        String diag = ta.getNote() == null ? "" : ta.getNote();
         TD<TR<TBODY<TABLE<Hamlet>>>> nodeTd = tbody.
           tr().
             td(".id", taid).
             td(".progress", progress).
-            td(".state", ta.getState().toString()).
+            td(".state", ta.getState()).
             td().
               a(".nodelink", url("http://", nodeHttpAddr), nodeHttpAddr);
         if (containerId != null) {
-          String containerIdStr = ConverterUtils.toString(containerId);
+          String containerIdStr = ta.getAssignedContainerIdStr();
           nodeTd._(" ").
             a(".logslink", url("http://", nodeHttpAddr, "node", "containerlogs",
               containerIdStr, app.getJob().getUserName()), "logs");
@@ -92,7 +100,7 @@ public class TaskPage extends AppView {
           td(".ts", Times.format(startTime)).
           td(".ts", Times.format(finishTime)).
           td(".dt", StringUtils.formatTime(elapsed)).
-          td(".note", Joiner.on('\n').join(ta.getDiagnostics()))._();
+          td(".note", diag)._();
       }
       tbody._()._();
     }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/TasksBlock.java

@@ -18,21 +18,24 @@
 
 package org.apache.hadoop.mapreduce.v2.app.webapp;
 
-import com.google.inject.Inject;
+import static org.apache.hadoop.mapreduce.v2.app.webapp.AMParams.TASK_TYPE;
+import static org.apache.hadoop.yarn.util.StringHelper.join;
+import static org.apache.hadoop.yarn.util.StringHelper.percent;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI._PROGRESSBAR;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI._PROGRESSBAR_VALUE;
 
-import org.apache.hadoop.mapreduce.v2.api.records.TaskReport;
 import org.apache.hadoop.mapreduce.v2.api.records.TaskType;
 import org.apache.hadoop.mapreduce.v2.app.job.Task;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskInfo;
 import org.apache.hadoop.mapreduce.v2.util.MRApps;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.util.Times;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
-import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.*;
+import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TABLE;
+import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TBODY;
 import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
 
-import static org.apache.hadoop.mapreduce.v2.app.webapp.AMWebApp.*;
-import static org.apache.hadoop.yarn.util.StringHelper.*;
-import static org.apache.hadoop.yarn.webapp.view.JQueryUI.*;
+import com.google.inject.Inject;
 
 public class TasksBlock extends HtmlBlock {
   final App app;
@@ -67,16 +70,16 @@ public class TasksBlock extends HtmlBlock {
       if (type != null && task.getType() != type) {
         continue;
       }
-      String tid = MRApps.toString(task.getID());
-      TaskReport report = task.getReport();
-      String pct = percent(report.getProgress());
-      long startTime = report.getStartTime();
-      long finishTime = report.getFinishTime();
-      long elapsed = Times.elapsed(startTime, finishTime);
+      TaskInfo info = new TaskInfo(task);
+      String tid = info.getId();
+      String pct = percent(info.getProgress() / 100);
+      long startTime = info.getStartTime();
+      long finishTime = info.getFinishTime();
+      long elapsed = info.getElapsedTime();
       tbody.
         tr().
           td().
-            br().$title(String.valueOf(task.getID().getId()))._(). // sorting
+            br().$title(String.valueOf(info.getTaskNum()))._(). // sorting
             a(url("task", tid), tid)._().
           td().
             br().$title(pct)._().
@@ -84,7 +87,7 @@ public class TasksBlock extends HtmlBlock {
               $title(join(pct, '%')). // tooltip
               div(_PROGRESSBAR_VALUE).
                 $style(join("width:", pct, '%'))._()._()._().
-          td(report.getTaskState().toString()).
+          td(info.getState()).
           td().
             br().$title(String.valueOf(startTime))._().
             _(Times.format(startTime))._().

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/AppInfo.java

@@ -0,0 +1,70 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import org.apache.hadoop.mapreduce.v2.app.AppContext;
+import org.apache.hadoop.mapreduce.v2.app.webapp.App;
+import org.apache.hadoop.yarn.util.Times;
+
+@XmlRootElement(name = "info")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class AppInfo {
+
+  protected String appId;
+  protected String name;
+  protected String user;
+  protected String hostname;
+  protected long startedOn;
+  protected long elapsedTime;
+
+  public AppInfo() {
+  }
+
+  public AppInfo(App app, AppContext context) {
+    this.appId = context.getApplicationID().toString();
+    this.name = context.getApplicationName().toString();
+    this.user = context.getUser().toString();
+    this.startedOn = context.getStartTime();
+    this.elapsedTime = Times.elapsed(context.getStartTime(), 0);
+  }
+
+  public String getId() {
+    return this.appId;
+  }
+
+  public String getName() {
+    return this.name;
+  }
+
+  public String getUser() {
+    return this.user;
+  }
+
+  public long getStartTime() {
+    return this.startedOn;
+  }
+
+  public long getElapsedTime() {
+    return this.elapsedTime;
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/ConfEntryInfo.java

@@ -0,0 +1,46 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlRootElement
+@XmlAccessorType(XmlAccessType.FIELD)
+public class ConfEntryInfo {
+
+  protected String name;
+  protected String value;
+
+  public ConfEntryInfo() {
+  }
+
+  public ConfEntryInfo(String key, String value) {
+    this.name = key;
+    this.value = value;
+  }
+
+  public String getName() {
+    return this.name;
+  }
+
+  public String getValue() {
+    return this.value;
+  }
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/ConfInfo.java

@@ -0,0 +1,66 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Map;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileContext;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.mapreduce.v2.app.job.Job;
+
+@XmlRootElement
+@XmlAccessorType(XmlAccessType.FIELD)
+public class ConfInfo {
+
+  protected String path;
+  protected ArrayList<ConfEntryInfo> property;
+
+  public ConfInfo() {
+  }
+
+  public ConfInfo(Job job, Configuration conf) throws IOException {
+
+    Path confPath = job.getConfFile();
+    this.property = new ArrayList<ConfEntryInfo>();
+    // Read in the configuration file and put it in a key/value table.
+    FileContext fc = FileContext.getFileContext(confPath.toUri(), conf);
+    Configuration jobConf = new Configuration(false);
+    jobConf.addResource(fc.open(confPath));
+    this.path = confPath.toString();
+    for (Map.Entry<String, String> entry : jobConf) {
+      this.property.add(new ConfEntryInfo(entry.getKey(), entry.getValue()));
+    }
+
+  }
+
+  public ArrayList<ConfEntryInfo> getProperties() {
+    return this.property;
+  }
+
+  public String getPath() {
+    return this.path;
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/CounterGroupInfo.java

@@ -0,0 +1,54 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import java.util.ArrayList;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import org.apache.hadoop.mapreduce.v2.api.records.Counter;
+import org.apache.hadoop.mapreduce.v2.api.records.CounterGroup;
+
+@XmlRootElement(name = "counterGroup")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class CounterGroupInfo {
+
+  protected String counterGroupName;
+  @XmlElement(name = "counter")
+  protected ArrayList<CounterInfo> counter;
+
+  public CounterGroupInfo() {
+  }
+
+  public CounterGroupInfo(String name, CounterGroup g, CounterGroup mg,
+      CounterGroup rg) {
+    this.counterGroupName = name;
+    this.counter = new ArrayList<CounterInfo>();
+
+    for (Counter c : g.getAllCounters().values()) {
+      Counter mc = mg == null ? null : mg.getCounter(c.getName());
+      Counter rc = rg == null ? null : rg.getCounter(c.getName());
+      CounterInfo cinfo = new CounterInfo(c, mc, rc);
+      this.counter.add(cinfo);
+    }
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/CounterInfo.java

@@ -0,0 +1,44 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import org.apache.hadoop.mapreduce.v2.api.records.Counter;
+
+@XmlRootElement
+@XmlAccessorType(XmlAccessType.FIELD)
+public class CounterInfo {
+
+  protected String counterName;
+  protected long totalCounterValue;
+  protected long mapCounterValue;
+  protected long reduceCounterValue;
+
+  public CounterInfo() {
+  }
+
+  public CounterInfo(Counter counter, Counter mc, Counter rc) {
+    this.counterName = counter.getName();
+    this.totalCounterValue = counter.getValue();
+    this.mapCounterValue = mc == null ? 0 : mc.getValue();
+    this.reduceCounterValue = rc == null ? 0 : rc.getValue();
+  }
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/JobCounterInfo.java

@@ -0,0 +1,100 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import java.util.ArrayList;
+import java.util.Map;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
+
+import org.apache.hadoop.mapreduce.v2.api.records.CounterGroup;
+import org.apache.hadoop.mapreduce.v2.api.records.Counters;
+import org.apache.hadoop.mapreduce.v2.api.records.TaskId;
+import org.apache.hadoop.mapreduce.v2.app.AppContext;
+import org.apache.hadoop.mapreduce.v2.app.job.Job;
+import org.apache.hadoop.mapreduce.v2.app.job.Task;
+import org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl;
+import org.apache.hadoop.mapreduce.v2.util.MRApps;
+
+@XmlRootElement(name = "jobCounters")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class JobCounterInfo {
+
+  @XmlTransient
+  protected Counters total = null;
+  @XmlTransient
+  protected Counters map = null;
+  @XmlTransient
+  protected Counters reduce = null;
+
+  protected String id;
+  protected ArrayList<CounterGroupInfo> counterGroups;
+
+  public JobCounterInfo() {
+  }
+
+  public JobCounterInfo(AppContext ctx, Job job) {
+    getCounters(ctx, job);
+    counterGroups = new ArrayList<CounterGroupInfo>();
+    this.id = MRApps.toString(job.getID());
+
+    int numGroups = 0;
+
+    if (total != null) {
+      for (CounterGroup g : total.getAllCounterGroups().values()) {
+        if (g != null) {
+          CounterGroup mg = map == null ? null : map.getCounterGroup(g
+              .getName());
+          CounterGroup rg = reduce == null ? null : reduce.getCounterGroup(g
+              .getName());
+          ++numGroups;
+
+          CounterGroupInfo cginfo = new CounterGroupInfo(g.getName(), g, mg, rg);
+          counterGroups.add(cginfo);
+        }
+      }
+    }
+  }
+
+  private void getCounters(AppContext ctx, Job job) {
+    total = JobImpl.newCounters();
+    if (job == null) {
+      return;
+    }
+    map = JobImpl.newCounters();
+    reduce = JobImpl.newCounters();
+    // Get all types of counters
+    Map<TaskId, Task> tasks = job.getTasks();
+    for (Task t : tasks.values()) {
+      Counters counters = t.getCounters();
+      JobImpl.incrAllCounters(total, counters);
+      switch (t.getType()) {
+      case MAP:
+        JobImpl.incrAllCounters(map, counters);
+        break;
+      case REDUCE:
+        JobImpl.incrAllCounters(reduce, counters);
+        break;
+      }
+    }
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/JobInfo.java

@@ -0,0 +1,349 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import static org.apache.hadoop.yarn.util.StringHelper.percent;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
+
+import org.apache.hadoop.mapreduce.JobACL;
+import org.apache.hadoop.mapreduce.v2.api.records.JobReport;
+import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId;
+import org.apache.hadoop.mapreduce.v2.api.records.TaskId;
+import org.apache.hadoop.mapreduce.v2.app.job.Job;
+import org.apache.hadoop.mapreduce.v2.app.job.Task;
+import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
+import org.apache.hadoop.mapreduce.v2.util.MRApps;
+import org.apache.hadoop.mapreduce.v2.util.MRApps.TaskAttemptStateUI;
+import org.apache.hadoop.security.authorize.AccessControlList;
+import org.apache.hadoop.yarn.util.Times;
+
+@XmlRootElement(name = "job")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class JobInfo {
+
+  // ok for any user to see
+  protected long startTime;
+  protected long finishTime;
+  protected long elapsedTime;
+  protected String id;
+  protected String name;
+  protected String user;
+  protected String state;
+  protected int mapsTotal;
+  protected int mapsCompleted;
+  protected float mapProgress;
+  protected int reducesTotal;
+  protected int reducesCompleted;
+  protected float reduceProgress;
+
+  @XmlTransient
+  protected String mapProgressPercent;
+  @XmlTransient
+  protected String reduceProgressPercent;
+
+  // these should only be seen if acls allow
+  protected int mapsPending;
+  protected int mapsRunning;
+  protected int reducesPending;
+  protected int reducesRunning;
+  protected boolean uberized;
+  protected String diagnostics;
+  protected int newReduceAttempts = 0;
+  protected int runningReduceAttempts = 0;
+  protected int failedReduceAttempts = 0;
+  protected int killedReduceAttempts = 0;
+  protected int successfulReduceAttempts = 0;
+  protected int newMapAttempts = 0;
+  protected int runningMapAttempts = 0;
+  protected int failedMapAttempts = 0;
+  protected int killedMapAttempts = 0;
+  protected int successfulMapAttempts = 0;
+  protected ArrayList<ConfEntryInfo> acls;
+
+  @XmlTransient
+  protected int numMaps;
+  @XmlTransient
+  protected int numReduces;
+
+  public JobInfo() {
+  }
+
+  public JobInfo(Job job, Boolean hasAccess) {
+    this.id = MRApps.toString(job.getID());
+    JobReport report = job.getReport();
+    countTasksAndAttempts(job);
+    this.startTime = report.getStartTime();
+    this.finishTime = report.getFinishTime();
+    this.elapsedTime = Times.elapsed(this.startTime, this.finishTime);
+    if (this.elapsedTime == -1) {
+      this.elapsedTime = 0;
+    }
+    this.name = job.getName().toString();
+    this.user = job.getUserName();
+    this.state = job.getState().toString();
+    this.mapsTotal = job.getTotalMaps();
+    this.mapsCompleted = job.getCompletedMaps();
+    this.mapProgress = report.getMapProgress() * 100;
+    this.mapProgressPercent = percent(report.getMapProgress());
+    this.reducesTotal = job.getTotalReduces();
+    this.reducesCompleted = job.getCompletedReduces();
+    this.reduceProgress = report.getReduceProgress() * 100;
+    this.reduceProgressPercent = percent(report.getReduceProgress());
+
+    this.acls = new ArrayList<ConfEntryInfo>();
+    if (hasAccess) {
+      this.uberized = job.isUber();
+
+      List<String> diagnostics = job.getDiagnostics();
+      if (diagnostics != null && !diagnostics.isEmpty()) {
+        StringBuffer b = new StringBuffer();
+        for (String diag : diagnostics) {
+          b.append(diag);
+        }
+        this.diagnostics = b.toString();
+      }
+
+      Map<JobACL, AccessControlList> allacls = job.getJobACLs();
+      if (allacls != null) {
+        for (Map.Entry<JobACL, AccessControlList> entry : allacls.entrySet()) {
+          this.acls.add(new ConfEntryInfo(entry.getKey().getAclName(), entry
+              .getValue().getAclString()));
+        }
+      }
+    }
+  }
+
+  public int getNewReduceAttempts() {
+    return this.newReduceAttempts;
+  }
+
+  public int getKilledReduceAttempts() {
+    return this.killedReduceAttempts;
+  }
+
+  public int getFailedReduceAttempts() {
+    return this.failedReduceAttempts;
+  }
+
+  public int getRunningReduceAttempts() {
+    return this.runningReduceAttempts;
+  }
+
+  public int getSuccessfulReduceAttempts() {
+    return this.successfulReduceAttempts;
+  }
+
+  public int getNewMapAttempts() {
+    return this.newMapAttempts;
+  }
+
+  public int getKilledMapAttempts() {
+    return this.killedMapAttempts;
+  }
+
+  public ArrayList<ConfEntryInfo> getAcls() {
+    return acls;
+  }
+
+  public int getFailedMapAttempts() {
+    return this.failedMapAttempts;
+  }
+
+  public int getRunningMapAttempts() {
+    return this.runningMapAttempts;
+  }
+
+  public int getSuccessfulMapAttempts() {
+    return this.successfulMapAttempts;
+  }
+
+  public int getReducesCompleted() {
+    return this.reducesCompleted;
+  }
+
+  public int getReducesTotal() {
+    return this.reducesTotal;
+  }
+
+  public int getReducesPending() {
+    return this.reducesPending;
+  }
+
+  public int getReducesRunning() {
+    return this.reducesRunning;
+  }
+
+  public int getMapsCompleted() {
+    return this.mapsCompleted;
+  }
+
+  public int getMapsTotal() {
+    return this.mapsTotal;
+  }
+
+  public int getMapsPending() {
+    return this.mapsPending;
+  }
+
+  public int getMapsRunning() {
+    return this.mapsRunning;
+  }
+
+  public String getState() {
+    return this.state;
+  }
+
+  public String getUser() {
+    return this.user;
+  }
+
+  public String getName() {
+    return this.name;
+  }
+
+  public String getId() {
+    return this.id;
+  }
+
+  public long getStartTime() {
+    return this.startTime;
+  }
+
+  public long getElapsedTime() {
+    return this.elapsedTime;
+  }
+
+  public long getFinishTime() {
+    return this.finishTime;
+  }
+
+  public boolean isUberized() {
+    return this.uberized;
+  }
+
+  public String getdiagnostics() {
+    return this.diagnostics;
+  }
+
+  public float getMapProgress() {
+    return this.mapProgress;
+  }
+
+  public String getMapProgressPercent() {
+    return this.mapProgressPercent;
+  }
+
+  public float getReduceProgress() {
+    return this.reduceProgress;
+  }
+
+  public String getReduceProgressPercent() {
+    return this.reduceProgressPercent;
+  }
+
+  /**
+   * Go through a job and update the member variables with counts for
+   * information to output in the page.
+   * 
+   * @param job
+   *          the job to get counts for.
+   */
+  private void countTasksAndAttempts(Job job) {
+    numReduces = 0;
+    numMaps = 0;
+    final Map<TaskId, Task> tasks = job.getTasks();
+    if (tasks == null) {
+      return;
+    }
+    for (Task task : tasks.values()) {
+      switch (task.getType()) {
+      case MAP:
+        // Task counts
+        switch (task.getState()) {
+        case RUNNING:
+          ++this.mapsRunning;
+          break;
+        case SCHEDULED:
+          ++this.mapsPending;
+          break;
+        }
+        break;
+      case REDUCE:
+        // Task counts
+        switch (task.getState()) {
+        case RUNNING:
+          ++this.reducesRunning;
+          break;
+        case SCHEDULED:
+          ++this.reducesPending;
+          break;
+        }
+        break;
+      }
+      // Attempts counts
+      Map<TaskAttemptId, TaskAttempt> attempts = task.getAttempts();
+      int newAttempts, running, successful, failed, killed;
+      for (TaskAttempt attempt : attempts.values()) {
+
+        newAttempts = 0;
+        running = 0;
+        successful = 0;
+        failed = 0;
+        killed = 0;
+        if (TaskAttemptStateUI.NEW.correspondsTo(attempt.getState())) {
+          ++newAttempts;
+        } else if (TaskAttemptStateUI.RUNNING.correspondsTo(attempt.getState())) {
+          ++running;
+        } else if (TaskAttemptStateUI.SUCCESSFUL.correspondsTo(attempt
+            .getState())) {
+          ++successful;
+        } else if (TaskAttemptStateUI.FAILED.correspondsTo(attempt.getState())) {
+          ++failed;
+        } else if (TaskAttemptStateUI.KILLED.correspondsTo(attempt.getState())) {
+          ++killed;
+        }
+
+        switch (task.getType()) {
+        case MAP:
+          this.newMapAttempts += newAttempts;
+          this.runningMapAttempts += running;
+          this.successfulMapAttempts += successful;
+          this.failedMapAttempts += failed;
+          this.killedMapAttempts += killed;
+          break;
+        case REDUCE:
+          this.newReduceAttempts += newAttempts;
+          this.runningReduceAttempts += running;
+          this.successfulReduceAttempts += successful;
+          this.failedReduceAttempts += failed;
+          this.killedReduceAttempts += killed;
+          break;
+        }
+      }
+    }
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/JobTaskAttemptCounterInfo.java

@@ -0,0 +1,63 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import java.util.ArrayList;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
+
+import org.apache.hadoop.mapreduce.v2.api.records.CounterGroup;
+import org.apache.hadoop.mapreduce.v2.api.records.Counters;
+import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
+import org.apache.hadoop.mapreduce.v2.util.MRApps;
+
+@XmlRootElement(name = "JobTaskAttemptCounters")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class JobTaskAttemptCounterInfo {
+
+  @XmlTransient
+  protected Counters total = null;
+
+  protected String id;
+  protected ArrayList<TaskCounterGroupInfo> taskCounterGroups;
+
+  public JobTaskAttemptCounterInfo() {
+  }
+
+  public JobTaskAttemptCounterInfo(TaskAttempt taskattempt) {
+
+    long value = 0;
+    this.id = MRApps.toString(taskattempt.getID());
+    total = taskattempt.getCounters();
+    taskCounterGroups = new ArrayList<TaskCounterGroupInfo>();
+    if (total != null) {
+      for (CounterGroup g : total.getAllCounterGroups().values()) {
+        if (g != null) {
+          TaskCounterGroupInfo cginfo = new TaskCounterGroupInfo(g.getName(), g);
+          if (cginfo != null) {
+            taskCounterGroups.add(cginfo);
+          }
+        }
+      }
+    }
+  }
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/JobTaskCounterInfo.java

@@ -0,0 +1,59 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import java.util.ArrayList;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
+
+import org.apache.hadoop.mapreduce.v2.api.records.CounterGroup;
+import org.apache.hadoop.mapreduce.v2.api.records.Counters;
+import org.apache.hadoop.mapreduce.v2.app.job.Task;
+import org.apache.hadoop.mapreduce.v2.util.MRApps;
+
+@XmlRootElement(name = "jobTaskCounters")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class JobTaskCounterInfo {
+
+  @XmlTransient
+  protected Counters total = null;
+
+  protected String id;
+  protected ArrayList<TaskCounterGroupInfo> taskCounterGroups;
+
+  public JobTaskCounterInfo() {
+  }
+
+  public JobTaskCounterInfo(Task task) {
+    total = task.getCounters();
+    this.id = MRApps.toString(task.getID());
+    taskCounterGroups = new ArrayList<TaskCounterGroupInfo>();
+    if (total != null) {
+      for (CounterGroup g : total.getAllCounterGroups().values()) {
+        if (g != null) {
+          TaskCounterGroupInfo cginfo = new TaskCounterGroupInfo(g.getName(), g);
+          taskCounterGroups.add(cginfo);
+        }
+      }
+    }
+  }
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/JobsInfo.java

@@ -0,0 +1,43 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by joblicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import java.util.ArrayList;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlRootElement(name = "jobs")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class JobsInfo {
+
+  protected ArrayList<JobInfo> job = new ArrayList<JobInfo>();
+
+  public JobsInfo() {
+  } // JAXB needs this
+
+  public void add(JobInfo jobInfo) {
+    job.add(jobInfo);
+  }
+
+  public ArrayList<JobInfo> getJobs() {
+    return job;
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/ReduceTaskAttemptInfo.java

@@ -0,0 +1,83 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import org.apache.hadoop.mapreduce.v2.api.records.TaskType;
+import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
+import org.apache.hadoop.yarn.util.Times;
+
+@XmlRootElement(name = "taskAttempt")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class ReduceTaskAttemptInfo extends TaskAttemptInfo {
+
+  protected long shuffleFinishTime;
+  protected long mergeFinishTime;
+  protected long elapsedShuffleTime;
+  protected long elapsedMergeTime;
+  protected long elapsedReduceTime;
+
+  public ReduceTaskAttemptInfo() {
+  }
+
+  public ReduceTaskAttemptInfo(TaskAttempt ta, TaskType type) {
+    super(ta, type, false);
+
+    this.shuffleFinishTime = ta.getShuffleFinishTime();
+    this.mergeFinishTime = ta.getSortFinishTime();
+    this.elapsedShuffleTime = Times.elapsed(this.startTime,
+        this.shuffleFinishTime, false);
+    if (this.elapsedShuffleTime == -1) {
+      this.elapsedShuffleTime = 0;
+    }
+    this.elapsedMergeTime = Times.elapsed(this.shuffleFinishTime,
+        this.mergeFinishTime, false);
+    if (this.elapsedMergeTime == -1) {
+      this.elapsedMergeTime = 0;
+    }
+    this.elapsedReduceTime = Times.elapsed(this.mergeFinishTime,
+        this.finishTime, false);
+    if (this.elapsedReduceTime == -1) {
+      this.elapsedReduceTime = 0;
+    }
+  }
+
+  public long getShuffleFinishTime() {
+    return this.shuffleFinishTime;
+  }
+
+  public long getMergeFinishTime() {
+    return this.mergeFinishTime;
+  }
+
+  public long getElapsedShuffleTime() {
+    return this.elapsedShuffleTime;
+  }
+
+  public long getElapsedMergeTime() {
+    return this.elapsedMergeTime;
+  }
+
+  public long getElapsedReduceTime() {
+    return this.elapsedReduceTime;
+  }
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/TaskAttemptInfo.java

@@ -0,0 +1,133 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import java.util.List;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlSeeAlso;
+import javax.xml.bind.annotation.XmlTransient;
+
+import org.apache.hadoop.mapreduce.v2.api.records.TaskType;
+import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
+import org.apache.hadoop.mapreduce.v2.util.MRApps;
+import org.apache.hadoop.yarn.api.records.ContainerId;
+import org.apache.hadoop.yarn.util.ConverterUtils;
+import org.apache.hadoop.yarn.util.Times;
+
+@XmlRootElement(name = "taskAttempt")
+@XmlSeeAlso({ ReduceTaskAttemptInfo.class })
+@XmlAccessorType(XmlAccessType.FIELD)
+public class TaskAttemptInfo {
+
+  protected long startTime;
+  protected long finishTime;
+  protected long elapsedTime;
+  protected float progress;
+  protected String id;
+  protected String rack;
+  protected String state;
+  protected String nodeHttpAddress;
+  protected String diagnostics;
+  protected String type;
+  protected String assignedContainerId;
+
+  @XmlTransient
+  protected ContainerId assignedContainer;
+
+  public TaskAttemptInfo() {
+  }
+
+  public TaskAttemptInfo(TaskAttempt ta, Boolean isRunning) {
+    this(ta, TaskType.MAP, isRunning);
+  }
+
+  public TaskAttemptInfo(TaskAttempt ta, TaskType type, Boolean isRunning) {
+    this.type = type.toString();
+    this.id = MRApps.toString(ta.getID());
+    this.nodeHttpAddress = ta.getNodeHttpAddress();
+    this.startTime = ta.getLaunchTime();
+    this.finishTime = ta.getFinishTime();
+    this.assignedContainerId = ConverterUtils.toString(ta
+        .getAssignedContainerID());
+    this.assignedContainer = ta.getAssignedContainerID();
+    this.progress = ta.getProgress() * 100;
+    this.state = ta.getState().toString();
+    this.elapsedTime = Times
+        .elapsed(this.startTime, this.finishTime, isRunning);
+    if (this.elapsedTime == -1) {
+      this.elapsedTime = 0;
+    }
+    List<String> diagnostics = ta.getDiagnostics();
+    if (diagnostics != null && !diagnostics.isEmpty()) {
+      StringBuffer b = new StringBuffer();
+      for (String diag : diagnostics) {
+        b.append(diag);
+      }
+      this.diagnostics = b.toString();
+    }
+    this.rack = ta.getNodeRackName();
+  }
+
+  public String getAssignedContainerIdStr() {
+    return this.assignedContainerId;
+  }
+
+  public ContainerId getAssignedContainerId() {
+    return this.assignedContainer;
+  }
+
+  public String getState() {
+    return this.state;
+  }
+
+  public String getId() {
+    return this.id;
+  }
+
+  public long getStartTime() {
+    return this.startTime;
+  }
+
+  public long getFinishTime() {
+    return this.finishTime;
+  }
+
+  public float getProgress() {
+    return this.progress;
+  }
+
+  public long getElapsedTime() {
+    return this.elapsedTime;
+  }
+
+  public String getNode() {
+    return this.nodeHttpAddress;
+  }
+
+  public String getRack() {
+    return this.rack;
+  }
+
+  public String getNote() {
+    return this.diagnostics;
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/TaskAttemptsInfo.java

@@ -0,0 +1,43 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by taskattemptlicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import java.util.ArrayList;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlRootElement(name = "taskattempts")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class TaskAttemptsInfo {
+
+  protected ArrayList<TaskAttemptInfo> taskattempt = new ArrayList<TaskAttemptInfo>();
+
+  public TaskAttemptsInfo() {
+  } // JAXB needs this
+
+  public void add(TaskAttemptInfo taskattemptInfo) {
+    taskattempt.add(taskattemptInfo);
+  }
+
+  public ArrayList<TaskAttemptInfo> getTaskAttempts() {
+    return taskattempt;
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/TaskCounterGroupInfo.java

@@ -0,0 +1,49 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import java.util.ArrayList;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import org.apache.hadoop.mapreduce.v2.api.records.Counter;
+import org.apache.hadoop.mapreduce.v2.api.records.CounterGroup;
+
+@XmlRootElement
+@XmlAccessorType(XmlAccessType.FIELD)
+public class TaskCounterGroupInfo {
+
+  protected String counterGroupName;
+  protected ArrayList<TaskCounterInfo> counter;
+
+  public TaskCounterGroupInfo() {
+  }
+
+  public TaskCounterGroupInfo(String name, CounterGroup g) {
+    this.counterGroupName = name;
+    this.counter = new ArrayList<TaskCounterInfo>();
+
+    for (Counter c : g.getAllCounters().values()) {
+      TaskCounterInfo cinfo = new TaskCounterInfo(c.getName(), c.getValue());
+      this.counter.add(cinfo);
+    }
+  }
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/TaskCounterInfo.java

@@ -0,0 +1,46 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlRootElement(name = "counter")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class TaskCounterInfo {
+
+  protected String name;
+  protected long value;
+
+  public TaskCounterInfo() {
+  }
+
+  public TaskCounterInfo(String name, long value) {
+    this.name = name;
+    this.value = value;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public long getValue() {
+    return value;
+  }
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/TaskInfo.java

@@ -0,0 +1,122 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
+
+import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptState;
+import org.apache.hadoop.mapreduce.v2.api.records.TaskReport;
+import org.apache.hadoop.mapreduce.v2.api.records.TaskType;
+import org.apache.hadoop.mapreduce.v2.app.job.Task;
+import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
+import org.apache.hadoop.mapreduce.v2.util.MRApps;
+import org.apache.hadoop.yarn.util.Times;
+
+@XmlRootElement(name = "task")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class TaskInfo {
+
+  protected long startTime;
+  protected long finishTime;
+  protected long elapsedTime;
+  protected float progress;
+  protected String id;
+  protected String state;
+  protected String type;
+  protected String successfulAttempt;
+
+  @XmlTransient
+  int taskNum;
+
+  @XmlTransient
+  TaskAttempt successful;
+
+  public TaskInfo() {
+  }
+
+  public TaskInfo(Task task) {
+    TaskType ttype = task.getType();
+    this.type = ttype.toString();
+    TaskReport report = task.getReport();
+    this.startTime = report.getStartTime();
+    this.finishTime = report.getFinishTime();
+    this.elapsedTime = Times.elapsed(this.startTime, this.finishTime, false);
+    if (this.elapsedTime == -1) {
+      this.elapsedTime = 0;
+    }
+    this.state = report.getTaskState().toString();
+    this.progress = report.getProgress() * 100;
+    this.id = MRApps.toString(task.getID());
+    this.taskNum = task.getID().getId();
+    this.successful = getSuccessfulAttempt(task);
+    if (successful != null) {
+      this.successfulAttempt = MRApps.toString(successful.getID());
+    } else {
+      this.successfulAttempt = "";
+    }
+  }
+
+  public float getProgress() {
+    return this.progress;
+  }
+
+  public String getState() {
+    return this.state;
+  }
+
+  public String getId() {
+    return this.id;
+  }
+
+  public int getTaskNum() {
+    return this.taskNum;
+  }
+
+  public long getStartTime() {
+    return this.startTime;
+  }
+
+  public long getFinishTime() {
+    return this.finishTime;
+  }
+
+  public long getElapsedTime() {
+    return this.elapsedTime;
+  }
+
+  public String getSuccessfulAttempt() {
+    return this.successfulAttempt;
+  }
+
+  public TaskAttempt getSuccessful() {
+    return this.successful;
+  }
+
+  private TaskAttempt getSuccessfulAttempt(Task task) {
+    for (TaskAttempt attempt : task.getAttempts().values()) {
+      if (attempt.getState() == TaskAttemptState.SUCCEEDED) {
+        return attempt;
+      }
+    }
+    return null;
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/TasksInfo.java

@@ -0,0 +1,43 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by tasklicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.app.webapp.dao;
+
+import java.util.ArrayList;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlRootElement(name = "tasks")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class TasksInfo {
+
+  protected ArrayList<TaskInfo> task = new ArrayList<TaskInfo>();
+
+  public TasksInfo() {
+  } // JAXB needs this
+
+  public void add(TaskInfo taskInfo) {
+    task.add(taskInfo);
+  }
+
+  public ArrayList<TaskInfo> getTasks() {
+    return task;
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/jobhistory/JobHistoryParser.java

@@ -353,7 +353,7 @@ public class JobHistoryParser {
    * The class where job information is aggregated into after parsing
    */
   public static class JobInfo {
-    String errorInfo = "None";
+    String errorInfo = "";
     long submitTime;
     long finishTime;
     JobID jobid;

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/HistoryClientService.java

@@ -27,12 +27,11 @@ import java.security.PrivilegedExceptionAction;
 import java.util.Arrays;
 import java.util.Collection;
 
-import org.apache.hadoop.ipc.Server;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.fs.CommonConfigurationKeys;
 import org.apache.hadoop.fs.CommonConfigurationKeysPublic;
+import org.apache.hadoop.ipc.Server;
 import org.apache.hadoop.mapreduce.JobACL;
 import org.apache.hadoop.mapreduce.v2.api.MRClientProtocol;
 import org.apache.hadoop.mapreduce.v2.api.protocolrecords.FailTaskAttemptRequest;
@@ -79,14 +78,14 @@ import org.apache.hadoop.yarn.webapp.WebApp;
 import org.apache.hadoop.yarn.webapp.WebApps;
 
 /**
- * This module is responsible for talking to the 
+ * This module is responsible for talking to the
  * JobClient (user facing).
  *
  */
 public class HistoryClientService extends AbstractService {
 
   private static final Log LOG = LogFactory.getLog(HistoryClientService.class);
-  
+
   private MRClientProtocol protocolHandler;
   private Server server;
   private WebApp webApp;
@@ -118,22 +117,22 @@ public class HistoryClientService extends AbstractService {
     server =
         rpc.getServer(MRClientProtocol.class, protocolHandler, address,
             conf, null,
-            conf.getInt(JHAdminConfig.MR_HISTORY_CLIENT_THREAD_COUNT, 
+            conf.getInt(JHAdminConfig.MR_HISTORY_CLIENT_THREAD_COUNT,
                 JHAdminConfig.DEFAULT_MR_HISTORY_CLIENT_THREAD_COUNT));
-    
+
     // Enable service authorization?
     if (conf.getBoolean(
-        CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHORIZATION, 
+        CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHORIZATION,
         false)) {
       server.refreshServiceAcl(conf, new MRAMPolicyProvider());
     }
-    
+
     server.start();
     this.bindAddress =
         NetUtils.createSocketAddr(hostNameResolved.getHostAddress()
             + ":" + server.getPort());
     LOG.info("Instantiated MRClientService at " + this.bindAddress);
-    
+
     super.start();
   }
 
@@ -141,7 +140,7 @@ public class HistoryClientService extends AbstractService {
     webApp = new HsWebApp(history);
     String bindAddress = conf.get(JHAdminConfig.MR_HISTORY_WEBAPP_ADDRESS,
         JHAdminConfig.DEFAULT_MR_HISTORY_WEBAPP_ADDRESS);
-    WebApps.$for("jobhistory", this).with(conf).at(bindAddress).start(webApp); 
+    WebApps.$for("jobhistory", HistoryClientService.class, this, "ws").with(conf).at(bindAddress).start(webApp);
   }
 
   @Override
@@ -158,7 +157,7 @@ public class HistoryClientService extends AbstractService {
   private class MRClientProtocolHandler implements MRClientProtocol {
 
     private RecordFactory recordFactory = RecordFactoryProvider.getRecordFactory(null);
-    
+
     private Job verifyAndGetJob(final JobId jobID) throws YarnRemoteException {
       UserGroupInformation loginUgi = null;
       Job job = null;
@@ -194,7 +193,7 @@ public class HistoryClientService extends AbstractService {
       response.setCounters(job.getCounters());
       return response;
     }
-    
+
     @Override
     public GetJobReportResponse getJobReport(GetJobReportRequest request) throws YarnRemoteException {
       JobId jobId = request.getJobId();
@@ -227,23 +226,23 @@ public class HistoryClientService extends AbstractService {
       JobId jobId = request.getJobId();
       int fromEventId = request.getFromEventId();
       int maxEvents = request.getMaxEvents();
-      
+
       Job job = verifyAndGetJob(jobId);
       GetTaskAttemptCompletionEventsResponse response = recordFactory.newRecordInstance(GetTaskAttemptCompletionEventsResponse.class);
       response.addAllCompletionEvents(Arrays.asList(job.getTaskAttemptCompletionEvents(fromEventId, maxEvents)));
       return response;
     }
-      
+
     @Override
     public KillJobResponse killJob(KillJobRequest request) throws YarnRemoteException {
       throw RPCUtil.getRemoteException("Invalid operation on completed job");
     }
-    
+
     @Override
     public KillTaskResponse killTask(KillTaskRequest request) throws YarnRemoteException {
       throw RPCUtil.getRemoteException("Invalid operation on completed job");
     }
-    
+
     @Override
     public KillTaskAttemptResponse killTaskAttempt(KillTaskAttemptRequest request) throws YarnRemoteException {
       throw RPCUtil.getRemoteException("Invalid operation on completed job");
@@ -252,15 +251,15 @@ public class HistoryClientService extends AbstractService {
     @Override
     public GetDiagnosticsResponse getDiagnostics(GetDiagnosticsRequest request) throws YarnRemoteException {
       TaskAttemptId taskAttemptId = request.getTaskAttemptId();
-    
+
       Job job = verifyAndGetJob(taskAttemptId.getTaskId().getJobId());
-      
+
       GetDiagnosticsResponse response = recordFactory.newRecordInstance(GetDiagnosticsResponse.class);
       response.addAllDiagnostics(job.getTask(taskAttemptId.getTaskId()).getAttempt(taskAttemptId).getDiagnostics());
       return response;
     }
 
-    @Override 
+    @Override
     public FailTaskAttemptResponse failTaskAttempt(FailTaskAttemptRequest request) throws YarnRemoteException {
       throw RPCUtil.getRemoteException("Invalid operation on completed job");
     }
@@ -269,7 +268,7 @@ public class HistoryClientService extends AbstractService {
     public GetTaskReportsResponse getTaskReports(GetTaskReportsRequest request) throws YarnRemoteException {
       JobId jobId = request.getJobId();
       TaskType taskType = request.getTaskType();
-      
+
       GetTaskReportsResponse response = recordFactory.newRecordInstance(GetTaskReportsResponse.class);
       Job job = verifyAndGetJob(jobId);
       Collection<Task> tasks = job.getTasks(taskType).values();

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/HsAboutPage.java

@@ -21,7 +21,7 @@ package org.apache.hadoop.mapreduce.v2.hs.webapp;
 import static org.apache.hadoop.yarn.webapp.view.JQueryUI.ACCORDION;
 import static org.apache.hadoop.yarn.webapp.view.JQueryUI.initID;
 
-import org.apache.hadoop.util.VersionInfo;
+import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.HistoryInfo;
 import org.apache.hadoop.yarn.webapp.SubView;
 import org.apache.hadoop.yarn.webapp.view.InfoBlock;
 
@@ -45,8 +45,9 @@ public class HsAboutPage extends HsView {
    * @return AttemptsBlock.class
    */
   @Override protected Class<? extends SubView> content() {
+    HistoryInfo info = new HistoryInfo();
     info("History Server").
-      _("BuildVersion", VersionInfo.getBuildVersion());
+      _("BuildVersion", info.getHadoopBuildVersion() + " on " + info.getHadoopVersionBuiltOn());
     return InfoBlock.class;
   }
 }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/HsJobBlock.java

@@ -34,6 +34,9 @@ import org.apache.hadoop.mapreduce.v2.app.AppContext;
 import org.apache.hadoop.mapreduce.v2.app.job.Job;
 import org.apache.hadoop.mapreduce.v2.app.job.Task;
 import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ConfEntryInfo;
+import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.AMAttemptInfo;
+import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.JobInfo;
 import org.apache.hadoop.mapreduce.v2.util.MRApps;
 import org.apache.hadoop.mapreduce.v2.util.MRApps.TaskAttemptStateUI;
 import org.apache.hadoop.security.authorize.AccessControlList;
@@ -56,19 +59,6 @@ import static org.apache.hadoop.yarn.webapp.view.JQueryUI.*;
 public class HsJobBlock extends HtmlBlock {
   final AppContext appContext;
 
-  int killedMapAttempts = 0;
-  int failedMapAttempts = 0;
-  int successfulMapAttempts = 0;
-  int killedReduceAttempts = 0;
-  int failedReduceAttempts = 0;
-  int successfulReduceAttempts = 0;
-  long avgMapTime = 0;
-  long avgReduceTime = 0;
-  long avgShuffleTime = 0;
-  long avgSortTime = 0;
-  int numMaps;
-  int numReduces;
-
   @Inject HsJobBlock(AppContext appctx) {
     appContext = appctx;
   }
@@ -85,37 +75,30 @@ public class HsJobBlock extends HtmlBlock {
       return;
     }
     JobId jobID = MRApps.toJobID(jid);
-    Job job = appContext.getJob(jobID);
-    if (job == null) {
+    Job j = appContext.getJob(jobID);
+    if (j == null) {
       html.
         p()._("Sorry, ", jid, " not found.")._();
       return;
     }
-    Map<JobACL, AccessControlList> acls = job.getJobACLs();
-    List<AMInfo> amInfos = job.getAMInfos();
-    JobReport jobReport = job.getReport();
-    int mapTasks = job.getTotalMaps();
-    int mapTasksComplete = job.getCompletedMaps();
-    int reduceTasks = job.getTotalReduces();
-    int reducesTasksComplete = job.getCompletedReduces();
-    long startTime = jobReport.getStartTime();
-    long finishTime = jobReport.getFinishTime();
-    countTasksAndAttempts(job);
+    List<AMInfo> amInfos = j.getAMInfos();
+    JobInfo job = new JobInfo(j);
     ResponseInfo infoBlock = info("Job Overview").
         _("Job Name:", job.getName()).
         _("User Name:", job.getUserName()).
         _("Queue:", job.getQueueName()).
         _("State:", job.getState()).
         _("Uberized:", job.isUber()).
-        _("Started:", new Date(startTime)).
-        _("Finished:", new Date(finishTime)).
+        _("Started:", new Date(job.getStartTime())).
+        _("Finished:", new Date(job.getFinishTime())).
         _("Elapsed:", StringUtils.formatTime(
-            Times.elapsed(startTime, finishTime, false)));
+            Times.elapsed(job.getStartTime(), job.getFinishTime(), false)));
     
     String amString =
         amInfos.size() == 1 ? "ApplicationMaster" : "ApplicationMasters"; 
     
-    List<String> diagnostics = job.getDiagnostics();
+    // todo - switch to use JobInfo
+    List<String> diagnostics = j.getDiagnostics();
     if(diagnostics != null && !diagnostics.isEmpty()) {
       StringBuffer b = new StringBuffer();
       for(String diag: diagnostics) {
@@ -124,18 +107,17 @@ public class HsJobBlock extends HtmlBlock {
       infoBlock._("Diagnostics:", b.toString());
     }
 
-    if(numMaps > 0) {
-      infoBlock._("Average Map Time", StringUtils.formatTime(avgMapTime));
+    if(job.getNumMaps() > 0) {
+      infoBlock._("Average Map Time", StringUtils.formatTime(job.getAvgMapTime()));
     }
-    if(numReduces > 0) {
-      infoBlock._("Average Reduce Time", StringUtils.formatTime(avgReduceTime));
-      infoBlock._("Average Shuffle Time", StringUtils.formatTime(avgShuffleTime));
-      infoBlock._("Average Merge Time", StringUtils.formatTime(avgSortTime));
+    if(job.getNumReduces() > 0) {
+      infoBlock._("Average Reduce Time", StringUtils.formatTime(job.getAvgReduceTime()));
+      infoBlock._("Average Shuffle Time", StringUtils.formatTime(job.getAvgShuffleTime()));
+      infoBlock._("Average Merge Time", StringUtils.formatTime(job.getAvgMergeTime()));
     }
 
-    for(Map.Entry<JobACL, AccessControlList> entry : acls.entrySet()) {
-      infoBlock._("ACL "+entry.getKey().getAclName()+":",
-          entry.getValue().getAclString());
+    for (ConfEntryInfo entry : job.getAcls()) {
+      infoBlock._("ACL "+entry.getName()+":", entry.getValue());
     }
     DIV<Hamlet> div = html.
       _(InfoBlock.class).
@@ -154,18 +136,14 @@ public class HsJobBlock extends HtmlBlock {
             th(_TH, "Logs").
             _();
           for (AMInfo amInfo : amInfos) {
-            String nodeHttpAddress = amInfo.getNodeManagerHost() + 
-                ":" + amInfo.getNodeManagerHttpPort();
-            NodeId nodeId = BuilderUtils.newNodeId(
-                amInfo.getNodeManagerHost(), amInfo.getNodeManagerPort());
-            
+            AMAttemptInfo attempt = new AMAttemptInfo(amInfo,
+                job.getId(), job.getUserName(), "", "");
             table.tr().
-              td(String.valueOf(amInfo.getAppAttemptId().getAttemptId())).
-              td(new Date(amInfo.getStartTime()).toString()).
-              td().a(".nodelink", url("http://", nodeHttpAddress), 
-                  nodeHttpAddress)._().
-              td().a(".logslink", url("logs", nodeId.toString(), 
-                  amInfo.getContainerId().toString(), jid, job.getUserName()), 
+              td(String.valueOf(attempt.getAttemptId())).
+              td(new Date(attempt.getStartTime()).toString()).
+              td().a(".nodelink", url("http://", attempt.getNodeHttpAddress()), 
+                  attempt.getNodeHttpAddress())._().
+              td().a(".logslink", url(attempt.getShortLogsLink()), 
                       "logs")._().
             _();
           }
@@ -184,13 +162,13 @@ public class HsJobBlock extends HtmlBlock {
           tr(_ODD).
             th().
               a(url("tasks", jid, "m"), "Map")._().
-            td(String.valueOf(mapTasks)).
-            td(String.valueOf(mapTasksComplete))._().
+            td(String.valueOf(String.valueOf(job.getMapsTotal()))).
+            td(String.valueOf(String.valueOf(job.getMapsCompleted())))._().
           tr(_EVEN).
             th().
               a(url("tasks", jid, "r"), "Reduce")._().
-            td(String.valueOf(reduceTasks)).
-            td(String.valueOf(reducesTasksComplete))._()
+            td(String.valueOf(String.valueOf(job.getReducesTotal()))).
+            td(String.valueOf(String.valueOf(job.getReducesCompleted())))._()
           ._().
 
         // Attempts table
@@ -204,99 +182,27 @@ public class HsJobBlock extends HtmlBlock {
           th("Maps").
           td().a(url("attempts", jid, "m",
               TaskAttemptStateUI.FAILED.toString()), 
-              String.valueOf(failedMapAttempts))._().
+              String.valueOf(job.getFailedMapAttempts()))._().
           td().a(url("attempts", jid, "m",
               TaskAttemptStateUI.KILLED.toString()), 
-              String.valueOf(killedMapAttempts))._().
+              String.valueOf(job.getKilledMapAttempts()))._().
           td().a(url("attempts", jid, "m",
               TaskAttemptStateUI.SUCCESSFUL.toString()), 
-              String.valueOf(successfulMapAttempts))._().
+              String.valueOf(job.getSuccessfulMapAttempts()))._().
         _().
         tr(_EVEN).
           th("Reduces").
           td().a(url("attempts", jid, "r",
               TaskAttemptStateUI.FAILED.toString()), 
-              String.valueOf(failedReduceAttempts))._().
+              String.valueOf(job.getFailedReduceAttempts()))._().
           td().a(url("attempts", jid, "r",
               TaskAttemptStateUI.KILLED.toString()), 
-              String.valueOf(killedReduceAttempts))._().
+              String.valueOf(job.getKilledReduceAttempts()))._().
           td().a(url("attempts", jid, "r",
               TaskAttemptStateUI.SUCCESSFUL.toString()), 
-              String.valueOf(successfulReduceAttempts))._().
+              String.valueOf(job.getSuccessfulReduceAttempts()))._().
          _().
        _().
      _();
   }
-
-  /**
-   * Go through a job and update the member variables with counts for
-   * information to output in the page.
-   * @param job the job to get counts for.
-   */
-  private void countTasksAndAttempts(Job job) {
-    numReduces = 0;
-    numMaps = 0;
-    Map<TaskId, Task> tasks = job.getTasks();
-    for (Task task : tasks.values()) {
-      // Attempts counts
-      Map<TaskAttemptId, TaskAttempt> attempts = task.getAttempts();
-      for (TaskAttempt attempt : attempts.values()) {
-
-        int successful = 0, failed = 0, killed =0;
-
-        if (TaskAttemptStateUI.NEW.correspondsTo(attempt.getState())) {
-          //Do Nothing
-        } else if (TaskAttemptStateUI.RUNNING.correspondsTo(attempt
-            .getState())) {
-          //Do Nothing
-        } else if (TaskAttemptStateUI.SUCCESSFUL.correspondsTo(attempt
-            .getState())) {
-          ++successful;
-        } else if (TaskAttemptStateUI.FAILED
-            .correspondsTo(attempt.getState())) {
-          ++failed;
-        } else if (TaskAttemptStateUI.KILLED
-            .correspondsTo(attempt.getState())) {
-          ++killed;
-        }
-
-        switch (task.getType()) {
-        case MAP:
-          successfulMapAttempts += successful;
-          failedMapAttempts += failed;
-          killedMapAttempts += killed;
-          if(attempt.getState() == TaskAttemptState.SUCCEEDED) {
-            numMaps++;
-            avgMapTime += (attempt.getFinishTime() -
-                attempt.getLaunchTime());
-          }
-          break;
-        case REDUCE:
-          successfulReduceAttempts += successful;
-          failedReduceAttempts += failed;
-          killedReduceAttempts += killed;
-          if(attempt.getState() == TaskAttemptState.SUCCEEDED) {
-            numReduces++;
-            avgShuffleTime += (attempt.getShuffleFinishTime() - 
-                attempt.getLaunchTime());
-            avgSortTime += attempt.getSortFinishTime() - 
-                attempt.getLaunchTime();
-            avgReduceTime += (attempt.getFinishTime() -
-                attempt.getShuffleFinishTime());
-          }
-          break;
-        }
-      }
-    }
-
-    if(numMaps > 0) {
-      avgMapTime = avgMapTime / numMaps;
-    }
-    
-    if(numReduces > 0) {
-      avgReduceTime = avgReduceTime / numReduces;
-      avgShuffleTime = avgShuffleTime / numReduces;
-      avgSortTime = avgSortTime / numReduces;
-    }
-  }
 }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/HsJobsBlock.java

@@ -21,10 +21,9 @@ package org.apache.hadoop.mapreduce.v2.hs.webapp;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 
-import org.apache.hadoop.mapreduce.v2.api.records.JobReport;
 import org.apache.hadoop.mapreduce.v2.app.AppContext;
 import org.apache.hadoop.mapreduce.v2.app.job.Job;
-import org.apache.hadoop.mapreduce.v2.util.MRApps;
+import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.JobInfo;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TABLE;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TBODY;
@@ -38,8 +37,8 @@ import com.google.inject.Inject;
  */
 public class HsJobsBlock extends HtmlBlock {
   final AppContext appContext;
-  static final SimpleDateFormat dateFormat = 
-    new SimpleDateFormat("yyyy.MM.dd HH:mm:ss z"); 
+  static final SimpleDateFormat dateFormat =
+    new SimpleDateFormat("yyyy.MM.dd HH:mm:ss z");
 
   @Inject HsJobsBlock(AppContext appCtx) {
     appContext = appCtx;
@@ -68,28 +67,21 @@ public class HsJobsBlock extends HtmlBlock {
             th("Reduces Completed")._()._().
         tbody();
     LOG.info("Getting list of all Jobs.");
-    for (Job job : appContext.getAllJobs().values()) {
-      String jobID = MRApps.toString(job.getID());
-      JobReport report = job.getReport();
-      String mapsTotal = String.valueOf(job.getTotalMaps());
-      String mapsCompleted = String.valueOf(job.getCompletedMaps());
-      String reduceTotal = String.valueOf(job.getTotalReduces());
-      String reduceCompleted = String.valueOf(job.getCompletedReduces());
-      long startTime = report.getStartTime();
-      long finishTime = report.getFinishTime();
+    for (Job j : appContext.getAllJobs().values()) {
+      JobInfo job = new JobInfo(j);
       tbody.
         tr().
-          td(dateFormat.format(new Date(startTime))).
-          td(dateFormat.format(new Date(finishTime))).
-          td().a(url("job", jobID), jobID)._().
-          td(job.getName().toString()).
+          td(dateFormat.format(new Date(job.getStartTime()))).
+          td(dateFormat.format(new Date(job.getFinishTime()))).
+          td().a(url("job", job.getId()), job.getId())._().
+          td(job.getName()).
           td(job.getUserName()).
           td(job.getQueueName()).
-          td(job.getState().toString()).
-          td(mapsTotal).
-          td(mapsCompleted).
-          td(reduceTotal).
-          td(reduceCompleted)._();
+          td(job.getState()).
+          td(String.valueOf(job.getMapsTotal())).
+          td(String.valueOf(job.getMapsCompleted())).
+          td(String.valueOf(job.getReducesTotal())).
+          td(String.valueOf(job.getReducesCompleted()))._();
     }
     tbody._().
     tfoot().

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/HsTasksBlock.java

@@ -20,12 +20,13 @@ package org.apache.hadoop.mapreduce.v2.hs.webapp;
 
 import static org.apache.hadoop.mapreduce.v2.app.webapp.AMParams.TASK_TYPE;
 
-import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptState;
-import org.apache.hadoop.mapreduce.v2.api.records.TaskReport;
 import org.apache.hadoop.mapreduce.v2.api.records.TaskType;
 import org.apache.hadoop.mapreduce.v2.app.job.Task;
 import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
 import org.apache.hadoop.mapreduce.v2.app.webapp.App;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ReduceTaskAttemptInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskAttemptInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskInfo;
 import org.apache.hadoop.mapreduce.v2.util.MRApps;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.util.Times;
@@ -65,7 +66,7 @@ public class HsTasksBlock extends HtmlBlock {
     if (!symbol.isEmpty()) {
       type = MRApps.taskType(symbol);
     }
-    
+
     THEAD<TABLE<Hamlet>> thead = html.table("#tasks").thead();
     //Create the spanning row
     int attemptColSpan = type == TaskType.REDUCE ? 8 : 3;
@@ -74,7 +75,7 @@ public class HsTasksBlock extends HtmlBlock {
       th().$colspan(attemptColSpan).$class("ui-state-default").
         _("Successful Attempt")._().
     _();
-    
+
     TR<THEAD<TABLE<Hamlet>>> theadRow = thead.
           tr().
             th("Name").
@@ -83,33 +84,33 @@ public class HsTasksBlock extends HtmlBlock {
             th("Finish Time").
             th("Elapsed Time").
             th("Start Time"); //Attempt
-    
+
     if(type == TaskType.REDUCE) {
       theadRow.th("Shuffle Finish Time"); //Attempt
       theadRow.th("Merge Finish Time"); //Attempt
     }
-    
+
     theadRow.th("Finish Time"); //Attempt
-    
+
     if(type == TaskType.REDUCE) {
       theadRow.th("Elapsed Time Shuffle"); //Attempt
       theadRow.th("Elapsed Time Merge"); //Attempt
       theadRow.th("Elapsed Time Reduce"); //Attempt
     }
     theadRow.th("Elapsed Time"); //Attempt
-    
+
     TBODY<TABLE<Hamlet>> tbody = theadRow._()._().tbody();
     for (Task task : app.getJob().getTasks().values()) {
       if (type != null && task.getType() != type) {
         continue;
       }
-      String tid = MRApps.toString(task.getID());
-      
-      TaskReport report = task.getReport();
-      long startTime = report.getStartTime();
-      long finishTime = report.getFinishTime();
-      long elapsed = Times.elapsed(startTime, finishTime, false);
-      
+      TaskInfo info = new TaskInfo(task);
+      String tid = info.getId();
+
+      long startTime = info.getStartTime();
+      long finishTime = info.getFinishTime();
+      long elapsed = info.getElapsedTime();
+
       long attemptStartTime = -1;
       long shuffleFinishTime = -1;
       long sortFinishTime = -1;
@@ -118,30 +119,31 @@ public class HsTasksBlock extends HtmlBlock {
       long elapsedSortTime = -1;;
       long elapsedReduceTime = -1;
       long attemptElapsed = -1;
-      TaskAttempt successful = getSuccessfulAttempt(task);
+      TaskAttempt successful = info.getSuccessful();
       if(successful != null) {
-        attemptStartTime = successful.getLaunchTime();
-        attemptFinishTime = successful.getFinishTime();
+        TaskAttemptInfo ta;
         if(type == TaskType.REDUCE) {
-          shuffleFinishTime = successful.getShuffleFinishTime();
-          sortFinishTime = successful.getSortFinishTime();
-          elapsedShuffleTime =
-              Times.elapsed(attemptStartTime, shuffleFinishTime, false);
-          elapsedSortTime =
-              Times.elapsed(shuffleFinishTime, sortFinishTime, false);
-          elapsedReduceTime =
-              Times.elapsed(sortFinishTime, attemptFinishTime, false); 
+          ReduceTaskAttemptInfo rta = new ReduceTaskAttemptInfo(successful, type);
+          shuffleFinishTime = rta.getShuffleFinishTime();
+          sortFinishTime = rta.getMergeFinishTime();
+          elapsedShuffleTime = rta.getElapsedShuffleTime();
+          elapsedSortTime = rta.getElapsedMergeTime();
+          elapsedReduceTime = rta.getElapsedReduceTime();
+          ta = rta;
+        } else {
+          ta = new TaskAttemptInfo(successful, type, false);
         }
-        attemptElapsed =
-            Times.elapsed(attemptStartTime, attemptFinishTime, false);
+        attemptStartTime = ta.getStartTime();
+        attemptFinishTime = ta.getFinishTime();
+        attemptElapsed = ta.getElapsedTime();
       }
-      
+
       TR<TBODY<TABLE<Hamlet>>> row = tbody.tr();
       row.
           td().
-            br().$title(String.valueOf(task.getID().getId()))._(). // sorting
+            br().$title(String.valueOf(info.getTaskNum()))._(). // sorting
             a(url("task", tid), tid)._().
-          td(report.getTaskState().toString()).
+          td(info.getState()).
           td().
             br().$title(String.valueOf(startTime))._().
             _(Times.format(startTime))._().
@@ -166,7 +168,7 @@ public class HsTasksBlock extends HtmlBlock {
           td().
             br().$title(String.valueOf(attemptFinishTime))._().
             _(Times.format(attemptFinishTime))._();
-      
+
       if(type == TaskType.REDUCE) {
         row.td().
           br().$title(String.valueOf(elapsedShuffleTime))._().
@@ -178,7 +180,7 @@ public class HsTasksBlock extends HtmlBlock {
           br().$title(String.valueOf(elapsedReduceTime))._().
         _(formatTime(elapsedReduceTime))._();
       }
-      
+
       row.td().
         br().$title(String.valueOf(attemptElapsed))._().
         _(formatTime(attemptElapsed))._();
@@ -194,7 +196,7 @@ public class HsTasksBlock extends HtmlBlock {
         .$type(InputType.text).$name("elapsed_time").$value("Elapsed Time")._()
         ._().th().input("search_init").$type(InputType.text)
         .$name("attempt_start_time").$value("Start Time")._()._();
-    
+
     if(type == TaskType.REDUCE) {
       footRow.th().input("search_init").$type(InputType.text)
           .$name("shuffle_time").$value("Shuffle Time")._()._();
@@ -216,20 +218,12 @@ public class HsTasksBlock extends HtmlBlock {
 
     footRow.th().input("search_init").$type(InputType.text)
         .$name("attempt_elapsed").$value("Elapsed Time")._()._();
-    
+
     footRow._()._()._();
   }
 
   private String formatTime(long elapsed) {
     return elapsed < 0 ? "N/A" : StringUtils.formatTime(elapsed);
   }
-  
-  private TaskAttempt getSuccessfulAttempt(Task task) {
-    for(TaskAttempt attempt: task.getAttempts().values()) {
-      if(attempt.getState() == TaskAttemptState.SUCCEEDED) {
-        return attempt;
-      }
-    }
-    return null;
-  }
+
 }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/HsWebApp.java

@@ -27,6 +27,7 @@ import static org.apache.hadoop.yarn.webapp.YarnWebParams.NM_NODENAME;
 import org.apache.hadoop.mapreduce.v2.app.AppContext;
 import org.apache.hadoop.mapreduce.v2.app.webapp.AMParams;
 import org.apache.hadoop.mapreduce.v2.hs.HistoryContext;
+import org.apache.hadoop.yarn.webapp.GenericExceptionHandler;
 import org.apache.hadoop.yarn.webapp.WebApp;
 
 public class HsWebApp extends WebApp implements AMParams {
@@ -39,6 +40,9 @@ public class HsWebApp extends WebApp implements AMParams {
 
   @Override
   public void setup() {
+    bind(HsWebServices.class);
+    bind(JAXBContextResolver.class);
+    bind(GenericExceptionHandler.class);
     bind(AppContext.class).toInstance(history);
     route("/", HsController.class);
     route("/app", HsController.class);

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/HsWebServices.java

@@ -0,0 +1,469 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.mapreduce.v2.hs.webapp;
+
+import java.io.IOException;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.QueryParam;
+import javax.ws.rs.core.Context;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.UriInfo;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.mapreduce.v2.api.records.AMInfo;
+import org.apache.hadoop.mapreduce.v2.api.records.JobId;
+import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId;
+import org.apache.hadoop.mapreduce.v2.api.records.TaskId;
+import org.apache.hadoop.mapreduce.v2.api.records.TaskType;
+import org.apache.hadoop.mapreduce.v2.app.AppContext;
+import org.apache.hadoop.mapreduce.v2.app.job.Job;
+import org.apache.hadoop.mapreduce.v2.app.job.Task;
+import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ConfInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobCounterInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobTaskAttemptCounterInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobTaskCounterInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ReduceTaskAttemptInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskAttemptInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskAttemptsInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TasksInfo;
+import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.AMAttemptInfo;
+import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.AMAttemptsInfo;
+import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.HistoryInfo;
+import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.JobInfo;
+import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.JobsInfo;
+import org.apache.hadoop.mapreduce.v2.util.MRApps;
+import org.apache.hadoop.yarn.YarnException;
+import org.apache.hadoop.yarn.webapp.BadRequestException;
+import org.apache.hadoop.yarn.webapp.NotFoundException;
+import org.apache.hadoop.yarn.webapp.WebApp;
+
+import com.google.inject.Inject;
+
+@Path("/ws/v1/history")
+public class HsWebServices {
+  private final AppContext appCtx;
+  private WebApp webapp;
+  private final Configuration conf;
+
+  @Context
+  UriInfo uriInfo;
+
+  @Inject
+  public HsWebServices(final AppContext appCtx, final Configuration conf,
+      final WebApp webapp) {
+    this.appCtx = appCtx;
+    this.conf = conf;
+    this.webapp = webapp;
+  }
+
+  @GET
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public HistoryInfo get() {
+    return getHistoryInfo();
+  }
+
+  @GET
+  @Path("/info")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public HistoryInfo getHistoryInfo() {
+    return new HistoryInfo();
+  }
+
+  @GET
+  @Path("/mapreduce/jobs")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public JobsInfo getJobs(@QueryParam("user") String userQuery,
+      @QueryParam("limit") String count,
+      @QueryParam("queue") String queueQuery,
+      @QueryParam("startedTimeBegin") String startedBegin,
+      @QueryParam("startedTimeEnd") String startedEnd,
+      @QueryParam("finishedTimeBegin") String finishBegin,
+      @QueryParam("finishedTimeEnd") String finishEnd) {
+    JobsInfo allJobs = new JobsInfo();
+    long num = 0;
+    boolean checkCount = false;
+    boolean checkStart = false;
+    boolean checkEnd = false;
+    long countNum = 0;
+
+    // set values suitable in case both of begin/end not specified
+    long sBegin = 0;
+    long sEnd = Long.MAX_VALUE;
+    long fBegin = 0;
+    long fEnd = Long.MAX_VALUE;
+
+    if (count != null && !count.isEmpty()) {
+      checkCount = true;
+      try {
+        countNum = Long.parseLong(count);
+      } catch (NumberFormatException e) {
+        throw new BadRequestException(e.getMessage());
+      }
+      if (countNum <= 0) {
+        throw new BadRequestException("limit value must be greater then 0");
+      }
+    }
+
+    if (startedBegin != null && !startedBegin.isEmpty()) {
+      checkStart = true;
+      try {
+        sBegin = Long.parseLong(startedBegin);
+      } catch (NumberFormatException e) {
+        throw new BadRequestException(e.getMessage());
+      }
+      if (sBegin < 0) {
+        throw new BadRequestException("startedTimeBegin must be greater than 0");
+      }
+    }
+    if (startedEnd != null && !startedEnd.isEmpty()) {
+      checkStart = true;
+      try {
+        sEnd = Long.parseLong(startedEnd);
+      } catch (NumberFormatException e) {
+        throw new BadRequestException(e.getMessage());
+      }
+      if (sEnd < 0) {
+        throw new BadRequestException("startedTimeEnd must be greater than 0");
+      }
+    }
+    if (sBegin > sEnd) {
+      throw new BadRequestException(
+          "startedTimeEnd must be greater than startTimeBegin");
+    }
+
+    if (finishBegin != null && !finishBegin.isEmpty()) {
+      checkEnd = true;
+      try {
+        fBegin = Long.parseLong(finishBegin);
+      } catch (NumberFormatException e) {
+        throw new BadRequestException(e.getMessage());
+      }
+      if (fBegin < 0) {
+        throw new BadRequestException("finishTimeBegin must be greater than 0");
+      }
+    }
+    if (finishEnd != null && !finishEnd.isEmpty()) {
+      checkEnd = true;
+      try {
+        fEnd = Long.parseLong(finishEnd);
+      } catch (NumberFormatException e) {
+        throw new BadRequestException(e.getMessage());
+      }
+      if (fEnd < 0) {
+        throw new BadRequestException("finishTimeEnd must be greater than 0");
+      }
+    }
+    if (fBegin > fEnd) {
+      throw new BadRequestException(
+          "finishTimeEnd must be greater than finishTimeBegin");
+    }
+
+    for (Job job : appCtx.getAllJobs().values()) {
+      if (checkCount && num == countNum) {
+        break;
+      }
+
+      // getAllJobs only gives you a partial we want a full
+      Job fullJob = appCtx.getJob(job.getID());
+      if (fullJob == null) {
+        continue;
+      }
+
+      JobInfo jobInfo = new JobInfo(fullJob);
+      // can't really validate queue is a valid one since queues could change
+      if (queueQuery != null && !queueQuery.isEmpty()) {
+        if (!jobInfo.getQueueName().equals(queueQuery)) {
+          continue;
+        }
+      }
+
+      if (userQuery != null && !userQuery.isEmpty()) {
+        if (!jobInfo.getName().equals(userQuery)) {
+          continue;
+        }
+      }
+
+      if (checkStart
+          && (jobInfo.getStartTime() < sBegin || jobInfo.getStartTime() > sEnd)) {
+        continue;
+      }
+      if (checkEnd
+          && (jobInfo.getFinishTime() < fBegin || jobInfo.getFinishTime() > fEnd)) {
+        continue;
+      }
+
+      allJobs.add(jobInfo);
+      num++;
+    }
+    return allJobs;
+  }
+
+  @GET
+  @Path("/mapreduce/jobs/{jobid}")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public JobInfo getJob(@PathParam("jobid") String jid) {
+    JobId jobId = MRApps.toJobID(jid);
+    if (jobId == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    Job job = appCtx.getJob(jobId);
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    return new JobInfo(job);
+  }
+
+  @GET
+  @Path("/mapreduce/jobs/{jobid}/attempts")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public AMAttemptsInfo getJobAttempts(@PathParam("jobid") String jid) {
+    JobId jobId = MRApps.toJobID(jid);
+    if (jobId == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    Job job = appCtx.getJob(jobId);
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    AMAttemptsInfo amAttempts = new AMAttemptsInfo();
+    for (AMInfo amInfo : job.getAMInfos()) {
+      AMAttemptInfo attempt = new AMAttemptInfo(amInfo, MRApps.toString(job
+          .getID()), job.getUserName(), uriInfo.getBaseUri().toString(),
+          webapp.name());
+      amAttempts.add(attempt);
+    }
+    return amAttempts;
+  }
+
+  @GET
+  @Path("/mapreduce/jobs/{jobid}/counters")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public JobCounterInfo getJobCounters(@PathParam("jobid") String jid) {
+    JobId jobId = MRApps.toJobID(jid);
+    if (jobId == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    Job job = appCtx.getJob(jobId);
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    return new JobCounterInfo(this.appCtx, job);
+  }
+
+  @GET
+  @Path("/mapreduce/jobs/{jobid}/tasks/{taskid}/counters")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public JobTaskCounterInfo getSingleTaskCounters(
+      @PathParam("jobid") String jid, @PathParam("taskid") String tid) {
+    JobId jobId = MRApps.toJobID(jid);
+    if (jobId == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    Job job = this.appCtx.getJob(jobId);
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    TaskId taskID = MRApps.toTaskID(tid);
+    if (taskID == null) {
+      throw new NotFoundException("taskid " + tid + " not found or invalid");
+    }
+    Task task = job.getTask(taskID);
+    if (task == null) {
+      throw new NotFoundException("task not found with id " + tid);
+    }
+    return new JobTaskCounterInfo(task);
+  }
+
+  @GET
+  @Path("/mapreduce/jobs/{jobid}/conf")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public ConfInfo getJobConf(@PathParam("jobid") String jid) {
+    JobId jobId = MRApps.toJobID(jid);
+    if (jobId == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    Job job = appCtx.getJob(jobId);
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    ConfInfo info;
+    try {
+      info = new ConfInfo(job, this.conf);
+    } catch (IOException e) {
+      throw new NotFoundException("unable to load configuration for job: "
+          + jid);
+    }
+
+    return info;
+  }
+
+  @GET
+  @Path("/mapreduce/jobs/{jobid}/tasks")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public TasksInfo getJobTasks(@PathParam("jobid") String jid,
+      @QueryParam("type") String type) {
+    Job job = this.appCtx.getJob(MRApps.toJobID(jid));
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    TasksInfo allTasks = new TasksInfo();
+    for (Task task : job.getTasks().values()) {
+      TaskType ttype = null;
+      if (type != null && !type.isEmpty()) {
+        try {
+          ttype = MRApps.taskType(type);
+        } catch (YarnException e) {
+          throw new BadRequestException("tasktype must be either m or r");
+        }
+      }
+      if (ttype != null && task.getType() != ttype) {
+        continue;
+      }
+      allTasks.add(new TaskInfo(task));
+    }
+    return allTasks;
+  }
+
+  @GET
+  @Path("/mapreduce/jobs/{jobid}/tasks/{taskid}")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public TaskInfo getJobTask(@PathParam("jobid") String jid,
+      @PathParam("taskid") String tid) {
+    Job job = this.appCtx.getJob(MRApps.toJobID(jid));
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    TaskId taskID = MRApps.toTaskID(tid);
+    if (taskID == null) {
+      throw new NotFoundException("taskid " + tid + " not found or invalid");
+    }
+    Task task = job.getTask(taskID);
+    if (task == null) {
+      throw new NotFoundException("task not found with id " + tid);
+    }
+    return new TaskInfo(task);
+
+  }
+
+  @GET
+  @Path("/mapreduce/jobs/{jobid}/tasks/{taskid}/attempts")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public TaskAttemptsInfo getJobTaskAttempts(@PathParam("jobid") String jid,
+      @PathParam("taskid") String tid) {
+    TaskAttemptsInfo attempts = new TaskAttemptsInfo();
+    Job job = this.appCtx.getJob(MRApps.toJobID(jid));
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    TaskId taskID = MRApps.toTaskID(tid);
+    if (taskID == null) {
+      throw new NotFoundException("taskid " + tid + " not found or invalid");
+    }
+    Task task = job.getTask(taskID);
+    if (task == null) {
+      throw new NotFoundException("task not found with id " + tid);
+    }
+    for (TaskAttempt ta : task.getAttempts().values()) {
+      if (ta != null) {
+        if (task.getType() == TaskType.REDUCE) {
+          attempts.add(new ReduceTaskAttemptInfo(ta, task.getType()));
+        } else {
+          attempts.add(new TaskAttemptInfo(ta, task.getType(), false));
+        }
+      }
+    }
+    return attempts;
+  }
+
+  @GET
+  @Path("/mapreduce/jobs/{jobid}/tasks/{taskid}/attempts/{attemptid}")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public TaskAttemptInfo getJobTaskAttemptId(@PathParam("jobid") String jid,
+      @PathParam("taskid") String tid, @PathParam("attemptid") String attId) {
+    Job job = this.appCtx.getJob(MRApps.toJobID(jid));
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    TaskId taskID = MRApps.toTaskID(tid);
+    if (taskID == null) {
+      throw new NotFoundException("taskid " + tid + " not found or invalid");
+    }
+    Task task = job.getTask(taskID);
+    if (task == null) {
+      throw new NotFoundException("task not found with id " + tid);
+    }
+    TaskAttemptId attemptId = MRApps.toTaskAttemptID(attId);
+    if (attemptId == null) {
+      throw new NotFoundException("task attempt id " + attId
+          + " not found or invalid");
+    }
+    TaskAttempt ta = task.getAttempt(attemptId);
+    if (ta == null) {
+      throw new NotFoundException("Error getting info on task attempt id "
+          + attId);
+    }
+    if (task.getType() == TaskType.REDUCE) {
+      return new ReduceTaskAttemptInfo(ta, task.getType());
+    } else {
+      return new TaskAttemptInfo(ta, task.getType(), false);
+    }
+  }
+
+  @GET
+  @Path("/mapreduce/jobs/{jobid}/tasks/{taskid}/attempts/{attemptid}/counters")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public JobTaskAttemptCounterInfo getJobTaskAttemptIdCounters(
+      @PathParam("jobid") String jid, @PathParam("taskid") String tid,
+      @PathParam("attemptid") String attId) {
+    JobId jobId = MRApps.toJobID(jid);
+    if (jobId == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    Job job = this.appCtx.getJob(jobId);
+    if (job == null) {
+      throw new NotFoundException("job, " + jid + ", is not found");
+    }
+    TaskId taskID = MRApps.toTaskID(tid);
+    if (taskID == null) {
+      throw new NotFoundException("taskid " + tid + " not found or invalid");
+    }
+    Task task = job.getTask(taskID);
+    if (task == null) {
+      throw new NotFoundException("task not found with id " + tid);
+    }
+    TaskAttemptId attemptId = MRApps.toTaskAttemptID(attId);
+    if (attemptId == null) {
+      throw new NotFoundException("task attempt id " + attId
+          + " not found or invalid");
+    }
+    TaskAttempt ta = task.getAttempt(attemptId);
+    if (ta == null) {
+      throw new NotFoundException("Error getting info on task attempt id "
+          + attId);
+    }
+    return new JobTaskAttemptCounterInfo(ta);
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/JAXBContextResolver.java

@@ -0,0 +1,78 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.mapreduce.v2.hs.webapp;
+
+import com.google.inject.Singleton;
+import com.sun.jersey.api.json.JSONConfiguration;
+import com.sun.jersey.api.json.JSONJAXBContext;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
+import javax.ws.rs.ext.ContextResolver;
+import javax.ws.rs.ext.Provider;
+import javax.xml.bind.JAXBContext;
+
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ConfInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.CounterGroupInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.CounterInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobCounterInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobTaskAttemptCounterInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobTaskCounterInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ReduceTaskAttemptInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskAttemptInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskAttemptsInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskCounterGroupInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskCounterInfo;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TasksInfo;
+import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.AMAttemptInfo;
+import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.AMAttemptsInfo;
+import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.HistoryInfo;
+import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.JobInfo;
+import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.JobsInfo;
+
+@Singleton
+@Provider
+public class JAXBContextResolver implements ContextResolver<JAXBContext> {
+
+  private JAXBContext context;
+  private final Set<Class> types;
+
+  // you have to specify all the dao classes here
+  private final Class[] cTypes = { HistoryInfo.class, JobInfo.class,
+      JobsInfo.class, TasksInfo.class, TaskAttemptsInfo.class, ConfInfo.class,
+      CounterInfo.class, JobTaskCounterInfo.class,
+      JobTaskAttemptCounterInfo.class, 
+      TaskCounterInfo.class, JobCounterInfo.class, ReduceTaskAttemptInfo.class,
+      TaskAttemptInfo.class, TaskAttemptsInfo.class, CounterGroupInfo.class,
+      TaskCounterGroupInfo.class, 
+      AMAttemptInfo.class, AMAttemptsInfo.class};
+
+  public JAXBContextResolver() throws Exception {
+    this.types = new HashSet<Class>(Arrays.asList(cTypes));
+    this.context = new JSONJAXBContext(JSONConfiguration.natural()
+        .rootUnwrapping(false).build(), cTypes);
+  }
+
+  @Override
+  public JAXBContext getContext(Class<?> objectType) {
+    return (types.contains(objectType)) ? context : null;
+  }
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/dao/AMAttemptInfo.java

@@ -0,0 +1,96 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.hs.webapp.dao;
+
+import static org.apache.hadoop.yarn.util.StringHelper.join;
+import static org.apache.hadoop.yarn.util.StringHelper.ujoin;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
+
+import org.apache.hadoop.mapreduce.v2.api.records.AMInfo;
+import org.apache.hadoop.yarn.api.records.NodeId;
+import org.apache.hadoop.yarn.util.BuilderUtils;
+
+@XmlRootElement(name = "amAttempt")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class AMAttemptInfo {
+
+  protected String nodeHttpAddress;
+  protected String nodeId;
+  protected int id;
+  protected long startTime;
+  protected String containerId;
+  protected String logsLink;
+
+  @XmlTransient
+  protected String shortLogsLink;
+
+  public AMAttemptInfo() {
+  }
+
+  public AMAttemptInfo(AMInfo amInfo, String jobId, String user, String host,
+      String pathPrefix) {
+    this.nodeHttpAddress = amInfo.getNodeManagerHost() + ":"
+        + amInfo.getNodeManagerHttpPort();
+    NodeId nodeId = BuilderUtils.newNodeId(amInfo.getNodeManagerHost(),
+        amInfo.getNodeManagerPort());
+    this.nodeId = nodeId.toString();
+    this.id = amInfo.getAppAttemptId().getAttemptId();
+    this.startTime = amInfo.getStartTime();
+    this.containerId = amInfo.getContainerId().toString();
+    this.logsLink = join(
+        host,
+        pathPrefix,
+        ujoin("logs", nodeId.toString(), amInfo.getContainerId().toString(),
+            jobId, user));
+    this.shortLogsLink = ujoin("logs", nodeId.toString(), amInfo
+        .getContainerId().toString(), jobId, user);
+  }
+
+  public String getNodeHttpAddress() {
+    return this.nodeHttpAddress;
+  }
+
+  public String getNodeId() {
+    return this.nodeId;
+  }
+
+  public int getAttemptId() {
+    return this.id;
+  }
+
+  public long getStartTime() {
+    return this.startTime;
+  }
+
+  public String getContainerId() {
+    return this.containerId;
+  }
+
+  public String getLogsLink() {
+    return this.logsLink;
+  }
+
+  public String getShortLogsLink() {
+    return this.shortLogsLink;
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/dao/AMAttemptsInfo.java

@@ -0,0 +1,43 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by joblicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.hs.webapp.dao;
+
+import java.util.ArrayList;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlRootElement(name = "attempts")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class AMAttemptsInfo {
+
+  protected ArrayList<AMAttemptInfo> attempt = new ArrayList<AMAttemptInfo>();
+
+  public AMAttemptsInfo() {
+  } // JAXB needs this
+
+  public void add(AMAttemptInfo info) {
+    this.attempt.add(info);
+  }
+
+  public ArrayList<AMAttemptInfo> getAttempts() {
+    return this.attempt;
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/dao/HistoryInfo.java

@@ -0,0 +1,53 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.mapreduce.v2.hs.webapp.dao;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import org.apache.hadoop.util.VersionInfo;
+
+@XmlRootElement
+@XmlAccessorType(XmlAccessType.FIELD)
+public class HistoryInfo {
+
+  protected String hadoopVersion;
+  protected String hadoopBuildVersion;
+  protected String hadoopVersionBuiltOn;
+
+  public HistoryInfo() {
+    this.hadoopVersion = VersionInfo.getVersion();
+    this.hadoopBuildVersion = VersionInfo.getBuildVersion();
+    this.hadoopVersionBuiltOn = VersionInfo.getDate();
+  }
+
+  public String getHadoopVersion() {
+    return this.hadoopVersion;
+  }
+
+  public String getHadoopBuildVersion() {
+    return this.hadoopBuildVersion;
+  }
+
+  public String getHadoopVersionBuiltOn() {
+    return this.hadoopVersionBuiltOn;
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/dao/JobInfo.java

@@ -0,0 +1,295 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.hs.webapp.dao;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
+
+import org.apache.hadoop.mapreduce.JobACL;
+import org.apache.hadoop.mapreduce.v2.api.records.JobReport;
+import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId;
+import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptState;
+import org.apache.hadoop.mapreduce.v2.api.records.TaskId;
+import org.apache.hadoop.mapreduce.v2.app.job.Job;
+import org.apache.hadoop.mapreduce.v2.app.job.Task;
+import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
+import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ConfEntryInfo;
+import org.apache.hadoop.mapreduce.v2.hs.CompletedJob;
+import org.apache.hadoop.mapreduce.v2.util.MRApps;
+import org.apache.hadoop.mapreduce.v2.util.MRApps.TaskAttemptStateUI;
+import org.apache.hadoop.security.authorize.AccessControlList;
+
+@XmlRootElement(name = "job")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class JobInfo {
+
+  protected long startTime;
+  protected long finishTime;
+  protected String id;
+  protected String name;
+  protected String queue;
+  protected String user;
+  protected String state;
+  protected int mapsTotal;
+  protected int mapsCompleted;
+  protected int reducesTotal;
+  protected int reducesCompleted;
+  protected boolean uberized;
+  protected String diagnostics;
+  protected long avgMapTime = 0;
+  protected long avgReduceTime = 0;
+  protected long avgShuffleTime = 0;
+  protected long avgMergeTime = 0;
+  protected int failedReduceAttempts = 0;
+  protected int killedReduceAttempts = 0;
+  protected int successfulReduceAttempts = 0;
+  protected int failedMapAttempts = 0;
+  protected int killedMapAttempts = 0;
+  protected int successfulMapAttempts = 0;
+  protected ArrayList<ConfEntryInfo> acls;
+
+  @XmlTransient
+  protected int numMaps;
+  @XmlTransient
+  protected int numReduces;
+
+  public JobInfo() {
+  }
+
+  public JobInfo(Job job) {
+    this.id = MRApps.toString(job.getID());
+    JobReport report = job.getReport();
+    countTasksAndAttempts(job);
+    this.mapsTotal = job.getTotalMaps();
+    this.mapsCompleted = job.getCompletedMaps();
+    this.reducesTotal = job.getTotalReduces();
+    this.reducesCompleted = job.getCompletedReduces();
+    this.startTime = report.getStartTime();
+    this.finishTime = report.getFinishTime();
+    this.name = job.getName().toString();
+    this.queue = job.getQueueName();
+    this.user = job.getUserName();
+    this.state = job.getState().toString();
+    this.uberized = job.isUber();
+    List<String> diagnostics = job.getDiagnostics();
+    if (diagnostics != null && !diagnostics.isEmpty()) {
+      StringBuffer b = new StringBuffer();
+      for (String diag : diagnostics) {
+        b.append(diag);
+      }
+      this.diagnostics = b.toString();
+    }
+
+    this.acls = new ArrayList<ConfEntryInfo>();
+    if (job instanceof CompletedJob) {
+      Map<JobACL, AccessControlList> allacls = job.getJobACLs();
+      if (allacls != null) {
+        for (Map.Entry<JobACL, AccessControlList> entry : allacls.entrySet()) {
+          this.acls.add(new ConfEntryInfo(entry.getKey().getAclName(), entry
+              .getValue().getAclString()));
+        }
+      }
+    }
+  }
+
+  public long getNumMaps() {
+    return numMaps;
+  }
+
+  public long getNumReduces() {
+    return numReduces;
+  }
+
+  public long getAvgMapTime() {
+    return avgMapTime;
+  }
+
+  public long getAvgReduceTime() {
+    return avgReduceTime;
+  }
+
+  public long getAvgShuffleTime() {
+    return avgShuffleTime;
+  }
+
+  public long getAvgMergeTime() {
+    return avgMergeTime;
+  }
+
+  public long getFailedReduceAttempts() {
+    return failedReduceAttempts;
+  }
+
+  public long getKilledReduceAttempts() {
+    return killedReduceAttempts;
+  }
+
+  public long getSuccessfulReduceAttempts() {
+    return successfulReduceAttempts;
+  }
+
+  public long getFailedMapAttempts() {
+    return failedMapAttempts;
+  }
+
+  public long getKilledMapAttempts() {
+    return killedMapAttempts;
+  }
+
+  public long getSuccessfulMapAttempts() {
+    return successfulMapAttempts;
+  }
+
+  public ArrayList<ConfEntryInfo> getAcls() {
+    return acls;
+  }
+
+  public int getReducesCompleted() {
+    return this.reducesCompleted;
+  }
+
+  public int getReducesTotal() {
+    return this.reducesTotal;
+  }
+
+  public int getMapsCompleted() {
+    return this.mapsCompleted;
+  }
+
+  public int getMapsTotal() {
+    return this.mapsTotal;
+  }
+
+  public String getState() {
+    return this.state;
+  }
+
+  public String getUserName() {
+    return this.user;
+  }
+
+  public String getName() {
+    return this.name;
+  }
+
+  public String getQueueName() {
+    return this.queue;
+  }
+
+  public String getId() {
+    return this.id;
+  }
+
+  public long getStartTime() {
+    return this.startTime;
+  }
+
+  public long getFinishTime() {
+    return this.finishTime;
+  }
+
+  public boolean isUber() {
+    return this.uberized;
+  }
+
+  public String getDiagnostics() {
+    return this.diagnostics;
+  }
+
+  /**
+   * Go through a job and update the member variables with counts for
+   * information to output in the page.
+   *
+   * @param job
+   *          the job to get counts for.
+   */
+  private void countTasksAndAttempts(Job job) {
+    numReduces = 0;
+    numMaps = 0;
+    final Map<TaskId, Task> tasks = job.getTasks();
+    if (tasks == null) {
+      return;
+    }
+    for (Task task : tasks.values()) {
+      // Attempts counts
+      Map<TaskAttemptId, TaskAttempt> attempts = task.getAttempts();
+      int successful, failed, killed;
+      for (TaskAttempt attempt : attempts.values()) {
+
+        successful = 0;
+        failed = 0;
+        killed = 0;
+        if (TaskAttemptStateUI.NEW.correspondsTo(attempt.getState())) {
+          // Do Nothing
+        } else if (TaskAttemptStateUI.RUNNING.correspondsTo(attempt.getState())) {
+          // Do Nothing
+        } else if (TaskAttemptStateUI.SUCCESSFUL.correspondsTo(attempt
+            .getState())) {
+          ++successful;
+        } else if (TaskAttemptStateUI.FAILED.correspondsTo(attempt.getState())) {
+          ++failed;
+        } else if (TaskAttemptStateUI.KILLED.correspondsTo(attempt.getState())) {
+          ++killed;
+        }
+
+        switch (task.getType()) {
+        case MAP:
+          successfulMapAttempts += successful;
+          failedMapAttempts += failed;
+          killedMapAttempts += killed;
+          if (attempt.getState() == TaskAttemptState.SUCCEEDED) {
+            numMaps++;
+            avgMapTime += (attempt.getFinishTime() - attempt.getLaunchTime());
+          }
+          break;
+        case REDUCE:
+          successfulReduceAttempts += successful;
+          failedReduceAttempts += failed;
+          killedReduceAttempts += killed;
+          if (attempt.getState() == TaskAttemptState.SUCCEEDED) {
+            numReduces++;
+            avgShuffleTime += (attempt.getShuffleFinishTime() - attempt
+                .getLaunchTime());
+            avgMergeTime += attempt.getSortFinishTime()
+                - attempt.getLaunchTime();
+            avgReduceTime += (attempt.getFinishTime() - attempt
+                .getShuffleFinishTime());
+          }
+          break;
+        }
+      }
+    }
+
+    if (numMaps > 0) {
+      avgMapTime = avgMapTime / numMaps;
+    }
+
+    if (numReduces > 0) {
+      avgReduceTime = avgReduceTime / numReduces;
+      avgShuffleTime = avgShuffleTime / numReduces;
+      avgMergeTime = avgMergeTime / numReduces;
+    }
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/dao/JobsInfo.java

@@ -0,0 +1,43 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by joblicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.mapreduce.v2.hs.webapp.dao;
+
+import java.util.ArrayList;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlRootElement(name = "jobs")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class JobsInfo {
+
+  protected ArrayList<JobInfo> job = new ArrayList<JobInfo>();
+
+  public JobsInfo() {
+  } // JAXB needs this
+
+  public void add(JobInfo jobInfo) {
+    this.job.add(jobInfo);
+  }
+
+  public ArrayList<JobInfo> getJobs() {
+    return this.job;
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/pom.xml

@@ -238,7 +238,7 @@
     <dependency>
       <groupId>com.google.inject.extensions</groupId>
       <artifactId>guice-servlet</artifactId>
-      <version>2.0</version>
+      <version>3.0</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/webapp/BadRequestException.java

@@ -0,0 +1,39 @@
+/**
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package org.apache.hadoop.yarn.webapp;
+
+import javax.ws.rs.WebApplicationException;
+import javax.ws.rs.core.Response.Status;
+
+public class BadRequestException extends WebApplicationException {
+
+  private static final long serialVersionUID = 1L;
+
+  public BadRequestException() {
+    super(Status.BAD_REQUEST);
+  }
+
+  public BadRequestException(java.lang.Throwable cause) {
+    super(cause, Status.BAD_REQUEST);
+  }
+
+  public BadRequestException(String msg) {
+    super(new Exception(msg), Status.BAD_REQUEST);
+  }
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/webapp/DefaultWrapperServlet.java

@@ -0,0 +1,50 @@
+/**
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package org.apache.hadoop.yarn.webapp;
+
+import java.io.IOException;
+
+import javax.servlet.RequestDispatcher;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletRequestWrapper;
+import javax.servlet.http.HttpServletResponse;
+
+import com.google.inject.Singleton;
+
+@Singleton
+public class DefaultWrapperServlet extends HttpServlet {
+
+private static final long serialVersionUID = 1L;
+
+public void doGet(HttpServletRequest req, HttpServletResponse resp)
+throws ServletException, IOException {
+  RequestDispatcher rd = getServletContext().getNamedDispatcher("default");
+
+  HttpServletRequest wrapped = new HttpServletRequestWrapper(req) {
+    public String getServletPath() {
+    return "";
+    }
+  };
+
+  rd.forward(wrapped, resp);
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/webapp/GenericExceptionHandler.java

@@ -0,0 +1,115 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.yarn.webapp;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.util.Map;
+import java.util.TreeMap;
+
+import javax.servlet.http.HttpServletResponse;
+import javax.ws.rs.core.Context;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.ext.ExceptionMapper;
+import javax.ws.rs.ext.Provider;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.ipc.RemoteException;
+import org.apache.hadoop.security.authorize.AuthorizationException;
+import org.mortbay.util.ajax.JSON;
+
+import com.google.inject.Singleton;
+
+/**
+ * Handle webservices jersey exceptions and create json response in the format:
+ * { "RemoteException" :
+ *   {
+ *     "exception" : <exception type>,
+ *     "javaClassName" : <classname of exception>,
+ *     "message" : <error message from exception>
+ *   }
+ * }
+ */
+@Singleton
+@Provider
+public class GenericExceptionHandler implements ExceptionMapper<Exception> {
+  public static final Log LOG = LogFactory
+      .getLog(GenericExceptionHandler.class);
+
+  private @Context
+  HttpServletResponse response;
+
+  @Override
+  public Response toResponse(Exception e) {
+    if (LOG.isTraceEnabled()) {
+      LOG.trace("GOT EXCEPITION", e);
+    }
+    // Don't catch this as filter forward on 404
+    // (ServletContainer.FEATURE_FILTER_FORWARD_ON_404)
+    // won't work and the web UI won't work!
+    if (e instanceof com.sun.jersey.api.NotFoundException) {
+      return ((com.sun.jersey.api.NotFoundException) e).getResponse();
+    }
+    // clear content type
+    response.setContentType(null);
+
+    // Convert exception
+    if (e instanceof RemoteException) {
+      e = ((RemoteException) e).unwrapRemoteException();
+    }
+
+    // Map response status
+    final Response.Status s;
+    if (e instanceof SecurityException) {
+      s = Response.Status.UNAUTHORIZED;
+    } else if (e instanceof AuthorizationException) {
+      s = Response.Status.UNAUTHORIZED;
+    } else if (e instanceof FileNotFoundException) {
+      s = Response.Status.NOT_FOUND;
+    } else if (e instanceof NotFoundException) {
+      s = Response.Status.NOT_FOUND;
+    } else if (e instanceof IOException) {
+      s = Response.Status.NOT_FOUND;
+    } else if (e instanceof UnsupportedOperationException) {
+      s = Response.Status.BAD_REQUEST;
+    } else if (e instanceof IllegalArgumentException) {
+      s = Response.Status.BAD_REQUEST;
+    } else if (e instanceof NumberFormatException) {
+      s = Response.Status.BAD_REQUEST;
+    } else if (e instanceof BadRequestException) {
+      s = Response.Status.BAD_REQUEST;
+    } else {
+      LOG.warn("INTERNAL_SERVER_ERROR", e);
+      s = Response.Status.INTERNAL_SERVER_ERROR;
+    }
+
+    // convert to json
+    final Map<String, Object> m = new TreeMap<String, Object>();
+    m.put("exception", e.getClass().getSimpleName());
+    m.put("message", e.getMessage());
+    m.put("javaClassName", e.getClass().getName());
+    final Map<String, Object> m2 = new TreeMap<String, Object>();
+    m2.put(RemoteException.class.getSimpleName(), m);
+    final String js = JSON.toString(m2);
+
+    return Response.status(s).type(MediaType.APPLICATION_JSON).entity(js)
+        .build();
+  }
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/webapp/NotFoundException.java

@@ -0,0 +1,44 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.webapp;
+
+import javax.ws.rs.WebApplicationException;
+import javax.ws.rs.core.Response.Status;
+
+/*
+ * Created our own NotFoundException because com.sun.jersey.api.NotFoundException
+ * sets the Response and therefore won't be handled by the GenericExceptionhandler
+ * to fill in correct response.
+ */
+public class NotFoundException extends WebApplicationException {
+
+  private static final long serialVersionUID = 1L;
+
+  public NotFoundException() {
+    super(Status.NOT_FOUND);
+  }
+
+  public NotFoundException(java.lang.Throwable cause) {
+    super(cause, Status.NOT_FOUND);
+  }
+
+  public NotFoundException(String msg) {
+    super(new Exception(msg), Status.NOT_FOUND);
+  }
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/webapp/WebApp.java

@@ -18,24 +18,29 @@
 
 package org.apache.hadoop.yarn.webapp;
 
-import com.google.common.base.CharMatcher;
-import static com.google.common.base.Preconditions.*;
-import com.google.common.base.Splitter;
-import com.google.common.collect.Lists;
-import com.google.inject.Provides;
-import com.google.inject.servlet.GuiceFilter;
-import com.google.inject.servlet.ServletModule;
+import static com.google.common.base.Preconditions.checkNotNull;
 
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.http.HttpServer;
-import org.apache.hadoop.yarn.util.StringHelper;
-
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import com.google.common.base.CharMatcher;
+import com.google.common.base.Splitter;
+import com.google.common.collect.Lists;
+import com.google.inject.Provides;
+import com.google.inject.servlet.GuiceFilter;
+import com.google.inject.servlet.ServletModule;
+import com.sun.jersey.api.core.ResourceConfig;
+import com.sun.jersey.core.util.FeaturesAndProperties;
+import com.sun.jersey.guice.spi.container.servlet.GuiceContainer;
+import com.sun.jersey.spi.container.servlet.ServletContainer;
+
 /**
  * @see WebApps for a usage example
  */
@@ -45,9 +50,10 @@ public abstract class WebApp extends ServletModule {
   public enum HTTP { GET, POST, HEAD, PUT, DELETE };
 
   private volatile String name;
-  private volatile List<String> servePathSpecs = new ArrayList<String>(); 
+  private volatile List<String> servePathSpecs = new ArrayList<String>();
   // path to redirect to if user goes to "/"
   private volatile String redirectPath;
+  private volatile String wsName;
   private volatile Configuration conf;
   private volatile HttpServer httpServer;
   private volatile GuiceFilter guiceFilter;
@@ -104,18 +110,20 @@ public abstract class WebApp extends ServletModule {
 
   void addServePathSpec(String path) { this.servePathSpecs.add(path); }
 
-  public String[] getServePathSpecs() { 
+  public String[] getServePathSpecs() {
     return this.servePathSpecs.toArray(new String[this.servePathSpecs.size()]);
   }
 
   /**
-   * Set a path to redirect the user to if they just go to "/". For 
-   * instance "/" goes to "/yarn/apps". This allows the filters to 
+   * Set a path to redirect the user to if they just go to "/". For
+   * instance "/" goes to "/yarn/apps". This allows the filters to
    * more easily differentiate the different webapps.
    * @param path  the path to redirect to
    */
   void setRedirectPath(String path) { this.redirectPath = path; }
 
+  void setWebServices (String name) { this.wsName = name; }
+
   public String getRedirectPath() { return this.redirectPath; }
 
   void setHostClass(Class<?> cls) {
@@ -129,10 +137,32 @@ public abstract class WebApp extends ServletModule {
   @Override
   public void configureServlets() {
     setup();
+
     serve("/", "/__stop").with(Dispatcher.class);
+
     for (String path : this.servePathSpecs) {
       serve(path).with(Dispatcher.class);
     }
+
+    // Add in the web services filters/serves if app has them.
+    // Using Jersey/guice integration module. If user has web services
+    // they must have also bound a default one in their webapp code.
+    if (this.wsName != null) {
+      // There seems to be an issue with the guice/jersey integration
+      // where we have to list the stuff we don't want it to serve
+      // through the guicecontainer. In this case its everything except
+      // the the web services api prefix. We can't just change the filter
+      // from /* below - that doesn't work.
+      String regex = "(?!/" + this.wsName + ")";
+      serveRegex(regex).with(DefaultWrapperServlet.class);
+
+      Map<String, String> params = new HashMap<String, String>();
+      params.put(ResourceConfig.FEATURE_IMPLICIT_VIEWABLES, "true");
+      params.put(ServletContainer.FEATURE_FILTER_FORWARD_ON_404, "true");
+      params.put(FeaturesAndProperties.FEATURE_XMLROOTELEMENT_PROCESSING, "true");
+      filter("/*").through(GuiceContainer.class, params);
+    }
+
   }
 
   /**

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/webapp/WebApps.java

@@ -72,6 +72,7 @@ public class WebApps {
     }
     
     final String name;
+    final String wsName;
     final Class<T> api;
     final T application;
     String bindAddress = "0.0.0.0";
@@ -82,10 +83,15 @@ public class WebApps {
     private final HashSet<ServletStruct> servlets = new HashSet<ServletStruct>();
     private final HashMap<String, Object> attributes = new HashMap<String, Object>();
 
-    Builder(String name, Class<T> api, T application) {
+    Builder(String name, Class<T> api, T application, String wsName) {
       this.name = name;
       this.api = api;
       this.application = application;
+      this.wsName = wsName;
+    }
+
+    Builder(String name, Class<T> api, T application) {
+      this(name, api, application, null);
     }
 
     public Builder<T> at(String bindAddress) {
@@ -142,6 +148,7 @@ public class WebApps {
         };
       }
       webapp.setName(name);
+      webapp.setWebServices(wsName);
       String basePath = "/" + name;
       webapp.setRedirectPath(basePath);
       if (basePath.equals("/")) { 
@@ -150,6 +157,14 @@ public class WebApps {
         webapp.addServePathSpec(basePath);
         webapp.addServePathSpec(basePath + "/*");
       }
+      if (wsName != null && !wsName.equals(basePath)) {
+        if (wsName.equals("/")) { 
+          webapp.addServePathSpec("/*");
+        } else {
+          webapp.addServePathSpec("/" + wsName);
+          webapp.addServePathSpec("/" + wsName + "/*");
+        }
+      }
       if (conf == null) {
         conf = new Configuration();
       }
@@ -231,6 +246,20 @@ public class WebApps {
     }
   }
 
+  /**
+   * Create a new webapp builder.
+   * @see WebApps for a complete example
+   * @param <T> application (holding the embedded webapp) type
+   * @param prefix of the webapp
+   * @param api the api class for the application
+   * @param app the application instance
+   * @param wsPrefix the prefix for the webservice api for this app
+   * @return a webapp builder
+   */
+  public static <T> Builder<T> $for(String prefix, Class<T> api, T app, String wsPrefix) {
+    return new Builder<T>(prefix, api, app, wsPrefix);
+  }
+
   /**
    * Create a new webapp builder.
    * @see WebApps for a complete example

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/webapp/AllApplicationsPage.java

@@ -28,9 +28,9 @@ import java.util.Map.Entry;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.server.nodemanager.Context;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.application.Application;
-import org.apache.hadoop.yarn.util.ConverterUtils;
-import org.apache.hadoop.yarn.webapp.YarnWebParams;
+import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.AppInfo;
 import org.apache.hadoop.yarn.webapp.SubView;
+import org.apache.hadoop.yarn.webapp.YarnWebParams;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.BODY;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TABLE;
@@ -88,13 +88,11 @@ public class AllApplicationsPage extends NMView {
                .tbody();
       for (Entry<ApplicationId, Application> entry : this.nmContext
           .getApplications().entrySet()) {
-        ApplicationId appId = entry.getKey();
-        Application app = entry.getValue();
-        String appIdStr = ConverterUtils.toString(appId);
+        AppInfo info = new AppInfo(entry.getValue());
         tableBody
           .tr()
-            .td().a(url("application", appIdStr), appIdStr)._()
-            .td()._(app.getApplicationState())
+            .td().a(url("application", info.getId()), info.getId())._()
+            .td()._(info.getState())
             ._()
           ._();
       }

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/webapp/AllContainersPage.java

@@ -28,9 +28,9 @@ import java.util.Map.Entry;
 import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.server.nodemanager.Context;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container;
-import org.apache.hadoop.yarn.util.ConverterUtils;
-import org.apache.hadoop.yarn.webapp.YarnWebParams;
+import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.ContainerInfo;
 import org.apache.hadoop.yarn.webapp.SubView;
+import org.apache.hadoop.yarn.webapp.YarnWebParams;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.BODY;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TABLE;
@@ -83,17 +83,14 @@ public class AllContainersPage extends NMView {
           ._().tbody();
       for (Entry<ContainerId, Container> entry : this.nmContext
           .getContainers().entrySet()) {
-        ContainerId containerId = entry.getKey();
-        Container container = entry.getValue();
-        String containerIdStr = ConverterUtils.toString(containerId);
+        ContainerInfo info = new ContainerInfo(this.nmContext, entry.getValue());
         tableBody
           .tr()
-            .td().a(url("container", containerIdStr), containerIdStr)
+            .td().a(url("container", info.getId()), info.getId())
             ._()
-            .td()._(container.getContainerState())._()
+            .td()._(info.getState())._()
             .td()
-                .a(url("containerlogs", containerIdStr, container.getUser()),
-                    "logs")._()
+                .a(url(info.getShortLogLink()), "logs")._()
           ._();
       }
       tableBody._()._()._();

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/webapp/ApplicationPage.java

@@ -23,19 +23,16 @@ import static org.apache.hadoop.yarn.webapp.view.JQueryUI.DATATABLES_ID;
 import static org.apache.hadoop.yarn.webapp.view.JQueryUI.initID;
 import static org.apache.hadoop.yarn.webapp.view.JQueryUI.tableInit;
 
-import java.util.Map;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
-import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.factories.RecordFactory;
 import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
 import org.apache.hadoop.yarn.server.nodemanager.Context;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.application.Application;
-import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container;
+import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.AppInfo;
 import org.apache.hadoop.yarn.util.ConverterUtils;
-import org.apache.hadoop.yarn.webapp.YarnWebParams;
 import org.apache.hadoop.yarn.webapp.SubView;
+import org.apache.hadoop.yarn.webapp.YarnWebParams;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TABLE;
 import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
@@ -81,15 +78,14 @@ public class ApplicationPage extends NMView implements YarnWebParams {
           ConverterUtils.toApplicationId(this.recordFactory,
               $(APPLICATION_ID));
       Application app = this.nmContext.getApplications().get(applicationID);
-      Map<ContainerId, Container> containers = app.getContainers();
+      AppInfo info = new AppInfo(app);
       info("Application's information")
-            ._("ApplicationId", ConverterUtils.toString(app.getAppId()))
-            ._("ApplicationState", app.getApplicationState().toString())
-            ._("User", app.getUser());
+            ._("ApplicationId", info.getId())
+            ._("ApplicationState", info.getState())
+            ._("User", info.getUser());
       TABLE<Hamlet> containersListBody = html._(InfoBlock.class)
           .table("#containers");
-      for (ContainerId containerId : containers.keySet()) {
-        String containerIdStr = ConverterUtils.toString(containerId);
+      for (String containerIdStr : info.getContainers()) {
         containersListBody
                .tr().td()
                  .a(url("container", containerIdStr), containerIdStr)

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/webapp/ContainerPage.java

@@ -18,18 +18,16 @@
 
 package org.apache.hadoop.yarn.server.nodemanager.webapp;
 
-import static org.apache.hadoop.yarn.util.StringHelper.ujoin;
 import static org.apache.hadoop.yarn.webapp.view.JQueryUI.ACCORDION;
 import static org.apache.hadoop.yarn.webapp.view.JQueryUI.initID;
 
 import org.apache.hadoop.yarn.api.records.ContainerId;
-import org.apache.hadoop.yarn.api.records.ContainerStatus;
-import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.server.nodemanager.Context;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container;
+import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.ContainerInfo;
 import org.apache.hadoop.yarn.util.ConverterUtils;
-import org.apache.hadoop.yarn.webapp.YarnWebParams;
 import org.apache.hadoop.yarn.webapp.SubView;
+import org.apache.hadoop.yarn.webapp.YarnWebParams;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.DIV;
 import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
@@ -77,21 +75,16 @@ public class ContainerPage extends NMView implements YarnWebParams {
                 + "please go back to the previous page and retry.")._();
         return;
       }
-      ContainerStatus containerData = container.cloneAndGetContainerStatus();
-      int exitCode = containerData.getExitStatus();
-      String exiStatus = 
-          (exitCode == YarnConfiguration.INVALID_CONTAINER_EXIT_STATUS) ? 
-              "N/A" : String.valueOf(exitCode);
+      ContainerInfo info = new ContainerInfo(this.nmContext, container);
+
       info("Container information")
-        ._("ContainerID", $(CONTAINER_ID))
-        ._("ContainerState", container.getContainerState())
-        ._("ExitStatus", exiStatus)
-        ._("Diagnostics", containerData.getDiagnostics())
-        ._("User", container.getUser())
-        ._("TotalMemoryNeeded",
-            container.getLaunchContext().getResource().getMemory())
-        ._("logs", ujoin("containerlogs", $(CONTAINER_ID), container.getUser()),
-            "Link to logs");
+        ._("ContainerID", info.getId())
+        ._("ContainerState", info.getState())
+        ._("ExitStatus", info.getExitStatus())
+        ._("Diagnostics", info.getDiagnostics())
+        ._("User", info.getUser())
+        ._("TotalMemoryNeeded", info.getMemoryNeeded())
+        ._("logs", info.getShortLogLink(), "Link to logs");
       html._(InfoBlock.class);
     }
   }

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/webapp/JAXBContextResolver.java

@@ -0,0 +1,62 @@
+/**
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package org.apache.hadoop.yarn.server.nodemanager.webapp;
+
+import java.util.Set;
+import java.util.HashSet;
+import java.util.Arrays;
+
+import com.sun.jersey.api.json.JSONConfiguration;
+import com.sun.jersey.api.json.JSONJAXBContext;
+import com.google.inject.Singleton;
+
+import javax.ws.rs.ext.ContextResolver;
+import javax.ws.rs.ext.Provider;
+import javax.xml.bind.JAXBContext;
+
+import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.AppInfo;
+import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.AppsInfo;
+import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.ContainerInfo;
+import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.ContainersInfo;
+import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.NodeInfo;
+
+@Singleton
+@Provider
+public class JAXBContextResolver implements ContextResolver<JAXBContext> {
+
+  private JAXBContext context;
+  private final Set<Class> types;
+    
+  // you have to specify all the dao classes here
+  private final Class[] cTypes = {AppInfo.class, AppsInfo.class, 
+      ContainerInfo.class, ContainersInfo.class, NodeInfo.class};
+    
+  public JAXBContextResolver() throws Exception {
+    this.types = new HashSet<Class>(Arrays.asList(cTypes));
+    // sets the json configuration so that the json output looks like 
+    // the xml output
+    this.context = new JSONJAXBContext(JSONConfiguration.natural().
+        rootUnwrapping(false).build(), cTypes);
+  }
+    
+  @Override
+  public JAXBContext getContext(Class<?> objectType) {
+    return (types.contains(objectType)) ? context : null;
+  }
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/webapp/NMWebServices.java

@@ -0,0 +1,163 @@
+/** * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.nodemanager.webapp;
+
+import java.util.Map.Entry;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.QueryParam;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.UriInfo;
+
+import org.apache.hadoop.yarn.api.records.ApplicationId;
+import org.apache.hadoop.yarn.api.records.ContainerId;
+import org.apache.hadoop.yarn.factories.RecordFactory;
+import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
+import org.apache.hadoop.yarn.server.nodemanager.Context;
+import org.apache.hadoop.yarn.server.nodemanager.ResourceView;
+import org.apache.hadoop.yarn.server.nodemanager.containermanager.application.Application;
+import org.apache.hadoop.yarn.server.nodemanager.containermanager.application.ApplicationState;
+import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container;
+import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.AppInfo;
+import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.AppsInfo;
+import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.ContainerInfo;
+import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.ContainersInfo;
+import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.NodeInfo;
+import org.apache.hadoop.yarn.util.ConverterUtils;
+import org.apache.hadoop.yarn.webapp.NotFoundException;
+import org.apache.hadoop.yarn.webapp.WebApp;
+
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+
+@Singleton
+@Path("/ws/v1/node")
+public class NMWebServices {
+  private Context nmContext;
+  private ResourceView rview;
+  private WebApp webapp;
+  private static RecordFactory recordFactory = RecordFactoryProvider
+      .getRecordFactory(null);
+
+  @javax.ws.rs.core.Context
+  UriInfo uriInfo;
+
+  @Inject
+  public NMWebServices(final Context nm, final ResourceView view,
+      final WebApp webapp) {
+    this.nmContext = nm;
+    this.rview = view;
+    this.webapp = webapp;
+  }
+
+  @GET
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public NodeInfo get() {
+    return getNodeInfo();
+  }
+
+  @GET
+  @Path("/info")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public NodeInfo getNodeInfo() {
+    return new NodeInfo(this.nmContext, this.rview);
+  }
+
+  @GET
+  @Path("/apps")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public AppsInfo getNodeApps(@QueryParam("state") String stateQuery,
+      @QueryParam("user") String userQuery) {
+    AppsInfo allApps = new AppsInfo();
+    for (Entry<ApplicationId, Application> entry : this.nmContext
+        .getApplications().entrySet()) {
+
+      AppInfo appInfo = new AppInfo(entry.getValue());
+      if (stateQuery != null && !stateQuery.isEmpty()) {
+        ApplicationState state = ApplicationState.valueOf(stateQuery);
+        if (!appInfo.getState().equalsIgnoreCase(stateQuery)) {
+          continue;
+        }
+      }
+      if (userQuery != null && !userQuery.isEmpty()) {
+        if (!appInfo.getUser().toString().equals(userQuery)) {
+          continue;
+        }
+      }
+      allApps.add(appInfo);
+    }
+    return allApps;
+  }
+
+  @GET
+  @Path("/apps/{appid}")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public AppInfo getNodeApp(@PathParam("appid") String appId) {
+    ApplicationId id = ConverterUtils.toApplicationId(recordFactory, appId);
+    if (id == null) {
+      throw new NotFoundException("app with id " + appId + " not found");
+    }
+    Application app = this.nmContext.getApplications().get(id);
+    if (app == null) {
+      throw new NotFoundException("app with id " + appId + " not found");
+    }
+    return new AppInfo(app);
+
+  }
+
+  @GET
+  @Path("/containers")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public ContainersInfo getNodeContainers() {
+    ContainersInfo allContainers = new ContainersInfo();
+    for (Entry<ContainerId, Container> entry : this.nmContext.getContainers()
+        .entrySet()) {
+      if (entry.getValue() == null) {
+        // just skip it
+        continue;
+      }
+      ContainerInfo info = new ContainerInfo(this.nmContext, entry.getValue(),
+          uriInfo.getBaseUri().toString(), webapp.name());
+      allContainers.add(info);
+    }
+    return allContainers;
+  }
+
+  @GET
+  @Path("/containers/{containerid}")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public ContainerInfo getNodeContainer(@PathParam("containerid") String id) {
+    ContainerId containerId = null;
+    containerId = ConverterUtils.toContainerId(id);
+    if (containerId == null) {
+      throw new NotFoundException("container with id, " + id
+          + ", is empty or null");
+    }
+    Container container = nmContext.getContainers().get(containerId);
+    if (container == null) {
+      throw new NotFoundException("container with id, " + id + ", not found");
+    }
+    return new ContainerInfo(this.nmContext, container, uriInfo.getBaseUri()
+        .toString(), webapp.name());
+
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/webapp/NodePage.java

@@ -23,10 +23,10 @@ import static org.apache.hadoop.yarn.webapp.view.JQueryUI.initID;
 
 import java.util.Date;
 
-import org.apache.hadoop.util.VersionInfo;
-import org.apache.hadoop.yarn.util.YarnVersionInfo;
+import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.server.nodemanager.Context;
 import org.apache.hadoop.yarn.server.nodemanager.ResourceView;
+import org.apache.hadoop.yarn.server.nodemanager.webapp.dao.NodeInfo;
 import org.apache.hadoop.yarn.webapp.SubView;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.HTML;
 import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
@@ -36,6 +36,8 @@ import com.google.inject.Inject;
 
 public class NodePage extends NMView {
 
+  private static final long BYTES_IN_MB = 1024 * 1024;
+
   @Override
   protected void commonPreHead(HTML<_> html) {
     super.commonPreHead(html);
@@ -60,21 +62,22 @@ public class NodePage extends NMView {
 
     @Override
     protected void render(Block html) {
+      NodeInfo info = new NodeInfo(this.context, this.resourceView);
       info("NodeManager information")
           ._("Total Vmem allocated for Containers",
-              this.resourceView.getVmemAllocatedForContainers() + "bytes")
+              StringUtils.byteDesc(info.getTotalVmemAllocated() * BYTES_IN_MB))
           ._("Total Pmem allocated for Container",
-              this.resourceView.getPmemAllocatedForContainers() + "bytes")
+              StringUtils.byteDesc(info.getTotalPmemAllocated() * BYTES_IN_MB))
           ._("NodeHealthyStatus",
-              this.context.getNodeHealthStatus().getIsNodeHealthy())
+              info.getHealthStatus())
           ._("LastNodeHealthTime", new Date(
-                this.context.getNodeHealthStatus().getLastHealthReportTime()))
+              info.getLastNodeUpdateTime()))
           ._("NodeHealthReport",
-              this.context.getNodeHealthStatus().getHealthReport())
-          ._("Node Manager Version:", YarnVersionInfo.getBuildVersion() +
-              " on " + YarnVersionInfo.getDate())
-          ._("Hadoop Version:", VersionInfo.getBuildVersion() +
-              " on " + VersionInfo.getDate());
+              info.getHealthReport())
+          ._("Node Manager Version:", info.getNMBuildVersion() +
+              " on " + info.getNMVersionBuiltOn())
+          ._("Hadoop Version:", info.getHadoopBuildVersion() +
+              " on " + info.getHadoopVersionBuiltOn());
       html._(InfoBlock.class);
     }
   }

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/webapp/WebServer.java

@@ -30,9 +30,10 @@ import org.apache.hadoop.yarn.server.nodemanager.LocalDirsHandlerService;
 import org.apache.hadoop.yarn.server.nodemanager.ResourceView;
 import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
 import org.apache.hadoop.yarn.service.AbstractService;
-import org.apache.hadoop.yarn.webapp.YarnWebParams;
+import org.apache.hadoop.yarn.webapp.GenericExceptionHandler;
 import org.apache.hadoop.yarn.webapp.WebApp;
 import org.apache.hadoop.yarn.webapp.WebApps;
+import org.apache.hadoop.yarn.webapp.YarnWebParams;
 
 public class WebServer extends AbstractService {
 
@@ -61,8 +62,9 @@ public class WebServer extends AbstractService {
         YarnConfiguration.DEFAULT_NM_WEBAPP_ADDRESS);
     LOG.info("Instantiating NMWebApp at " + bindAddress);
     try {
-      this.webApp = WebApps.$for("node", Context.class, this.nmContext).at(
-          bindAddress).with(getConfig()).start(this.nmWebApp);
+      this.webApp =
+          WebApps.$for("node", Context.class, this.nmContext, "ws")
+              .at(bindAddress).with(getConfig()).start(this.nmWebApp);
     } catch (Exception e) {
       String msg = "NMWebapps failed to start.";
       LOG.error(msg, e);
@@ -95,6 +97,9 @@ public class WebServer extends AbstractService {
 
     @Override
     public void setup() {
+      bind(NMWebServices.class);
+      bind(GenericExceptionHandler.class);
+      bind(JAXBContextResolver.class);
       bind(ResourceView.class).toInstance(this.resourceView);
       bind(ApplicationACLsManager.class).toInstance(this.aclsManager);
       bind(LocalDirsHandlerService.class).toInstance(dirsHandler);

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/webapp/dao/AppInfo.java

@@ -0,0 +1,73 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.yarn.server.nodemanager.webapp.dao;
+
+import java.util.ArrayList;
+import java.util.Map;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import org.apache.hadoop.yarn.api.records.ContainerId;
+import org.apache.hadoop.yarn.server.nodemanager.containermanager.application.Application;
+import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container;
+import org.apache.hadoop.yarn.util.ConverterUtils;
+
+@XmlRootElement(name = "app")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class AppInfo {
+
+  protected String id;
+  protected String state;
+  protected String user;
+  protected ArrayList<String> containerids;
+
+  public AppInfo() {
+  } // JAXB needs this
+
+  public AppInfo(final Application app) {
+    this.id = ConverterUtils.toString(app.getAppId());
+    this.state = app.getApplicationState().toString();
+    this.user = app.getUser();
+
+    this.containerids = new ArrayList<String>();
+    Map<ContainerId, Container> appContainers = app.getContainers();
+    for (ContainerId containerId : appContainers.keySet()) {
+      String containerIdStr = ConverterUtils.toString(containerId);
+      containerids.add(containerIdStr);
+    }
+  }
+
+  public String getId() {
+    return this.id;
+  }
+
+  public String getUser() {
+    return this.user;
+  }
+
+  public String getState() {
+    return this.state;
+  }
+
+  public ArrayList<String> getContainers() {
+    return this.containerids;
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/webapp/dao/AppsInfo.java

@@ -0,0 +1,43 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.yarn.server.nodemanager.webapp.dao;
+
+import java.util.ArrayList;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlRootElement(name = "apps")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class AppsInfo {
+
+  protected ArrayList<AppInfo> app = new ArrayList<AppInfo>();
+
+  public AppsInfo() {
+  } // JAXB needs this
+
+  public void add(AppInfo appInfo) {
+    app.add(appInfo);
+  }
+
+  public ArrayList<AppInfo> getApps() {
+    return app;
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/webapp/dao/ContainerInfo.java

@@ -0,0 +1,122 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.nodemanager.webapp.dao;
+
+import static org.apache.hadoop.yarn.util.StringHelper.join;
+import static org.apache.hadoop.yarn.util.StringHelper.ujoin;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
+
+import org.apache.hadoop.yarn.api.records.ContainerStatus;
+import org.apache.hadoop.yarn.conf.YarnConfiguration;
+import org.apache.hadoop.yarn.server.nodemanager.Context;
+import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container;
+
+@XmlRootElement(name = "container")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class ContainerInfo {
+
+  protected String id;
+  protected String state;
+  protected int exitCode;
+  protected String diagnostics;
+  protected String user;
+  protected long totalMemoryNeededMB;
+  protected String containerLogsLink;
+  protected String nodeId;
+  @XmlTransient
+  protected String containerLogsShortLink;
+  @XmlTransient
+  protected String exitStatus;
+
+  public ContainerInfo() {
+  } // JAXB needs this
+
+  public ContainerInfo(final Context nmContext, final Container container) {
+    this(nmContext, container, "", "");
+  }
+
+  public ContainerInfo(final Context nmContext, final Container container,
+      final String requestUri, final String pathPrefix) {
+
+    this.id = container.getContainerID().toString();
+    this.nodeId = nmContext.getNodeId().toString();
+    ContainerStatus containerData = container.cloneAndGetContainerStatus();
+    this.exitCode = containerData.getExitStatus();
+    this.exitStatus = (this.exitCode == YarnConfiguration.INVALID_CONTAINER_EXIT_STATUS) ? "N/A"
+        : String.valueOf(exitCode);
+    this.state = container.getContainerState().toString();
+    this.diagnostics = containerData.getDiagnostics();
+    if (this.diagnostics == null || this.diagnostics.isEmpty()) {
+      this.diagnostics = "";
+    }
+
+    this.user = container.getUser();
+    this.totalMemoryNeededMB = container.getLaunchContext().getResource()
+        .getMemory();
+    this.containerLogsShortLink = ujoin("containerlogs", this.id,
+        container.getUser());
+    this.containerLogsLink = join(requestUri, pathPrefix,
+        this.containerLogsShortLink);
+  }
+
+  public String getId() {
+    return this.id;
+  }
+
+  public String getNodeId() {
+    return this.nodeId;
+  }
+
+  public String getState() {
+    return this.state;
+  }
+
+  public int getExitCode() {
+    return this.exitCode;
+  }
+
+  public String getExitStatus() {
+    return this.exitStatus;
+  }
+
+  public String getDiagnostics() {
+    return this.diagnostics;
+  }
+
+  public String getUser() {
+    return this.user;
+  }
+
+  public String getShortLogLink() {
+    return this.containerLogsShortLink;
+  }
+
+  public String getLogLink() {
+    return this.containerLogsLink;
+  }
+
+  public long getMemoryNeeded() {
+    return this.totalMemoryNeededMB;
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/webapp/dao/ContainersInfo.java

@@ -0,0 +1,43 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.yarn.server.nodemanager.webapp.dao;
+
+import java.util.ArrayList;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlRootElement(name = "containers")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class ContainersInfo {
+
+  protected ArrayList<ContainerInfo> container = new ArrayList<ContainerInfo>();
+
+  public ContainersInfo() {
+  } // JAXB needs this
+
+  public void add(ContainerInfo containerInfo) {
+    container.add(containerInfo);
+  }
+
+  public ArrayList<ContainerInfo> getContainers() {
+    return container;
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/webapp/dao/NodeInfo.java

@@ -0,0 +1,127 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.nodemanager.webapp.dao;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import org.apache.hadoop.util.VersionInfo;
+import org.apache.hadoop.yarn.server.nodemanager.Context;
+import org.apache.hadoop.yarn.server.nodemanager.ResourceView;
+import org.apache.hadoop.yarn.util.YarnVersionInfo;
+
+@XmlRootElement
+@XmlAccessorType(XmlAccessType.FIELD)
+public class NodeInfo {
+
+  private static final long BYTES_IN_MB = 1024 * 1024;
+
+  protected String healthReport;
+  protected long totalVmemAllocatedContainersMB;
+  protected long totalPmemAllocatedContainersMB;
+  protected long lastNodeUpdateTime;
+  protected boolean nodeHealthy;
+  protected String nodeManagerVersion;
+  protected String nodeManagerBuildVersion;
+  protected String nodeManagerVersionBuiltOn;
+  protected String hadoopVersion;
+  protected String hadoopBuildVersion;
+  protected String hadoopVersionBuiltOn;
+  protected String id;
+  protected String nodeHostName;
+
+  public NodeInfo() {
+  } // JAXB needs this
+
+  public NodeInfo(final Context context, final ResourceView resourceView) {
+
+    this.id = context.getNodeId().toString();
+    this.nodeHostName = context.getNodeId().getHost();
+    this.totalVmemAllocatedContainersMB = resourceView
+        .getVmemAllocatedForContainers() / BYTES_IN_MB;
+    this.totalPmemAllocatedContainersMB = resourceView
+        .getPmemAllocatedForContainers() / BYTES_IN_MB;
+    this.nodeHealthy = context.getNodeHealthStatus().getIsNodeHealthy();
+    this.lastNodeUpdateTime = context.getNodeHealthStatus()
+        .getLastHealthReportTime();
+
+    this.healthReport = context.getNodeHealthStatus().getHealthReport();
+
+    this.nodeManagerVersion = YarnVersionInfo.getVersion();
+    this.nodeManagerBuildVersion = YarnVersionInfo.getBuildVersion();
+    this.nodeManagerVersionBuiltOn = YarnVersionInfo.getDate();
+    this.hadoopVersion = VersionInfo.getVersion();
+    this.hadoopBuildVersion = VersionInfo.getBuildVersion();
+    this.hadoopVersionBuiltOn = VersionInfo.getDate();
+  }
+
+  public String getNodeId() {
+    return this.id;
+  }
+
+  public String getNodeHostName() {
+    return this.nodeHostName;
+  }
+
+  public String getNMVersion() {
+    return this.nodeManagerVersion;
+  }
+
+  public String getNMBuildVersion() {
+    return this.nodeManagerBuildVersion;
+  }
+
+  public String getNMVersionBuiltOn() {
+    return this.nodeManagerVersionBuiltOn;
+  }
+
+  public String getHadoopVersion() {
+    return this.hadoopVersion;
+  }
+
+  public String getHadoopBuildVersion() {
+    return this.hadoopBuildVersion;
+  }
+
+  public String getHadoopVersionBuiltOn() {
+    return this.hadoopVersionBuiltOn;
+  }
+
+  public boolean getHealthStatus() {
+    return this.nodeHealthy;
+  }
+
+  public long getLastNodeUpdateTime() {
+    return this.lastNodeUpdateTime;
+  }
+
+  public String getHealthReport() {
+    return this.healthReport;
+  }
+
+  public long getTotalVmemAllocated() {
+    return this.totalVmemAllocatedContainersMB;
+  }
+
+  public long getTotalPmemAllocated() {
+    return this.totalPmemAllocatedContainersMB;
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceManager.java

@@ -412,7 +412,7 @@ public class ResourceManager extends CompositeService implements Recoverable {
 
   protected void startWepApp() {
     Builder<ApplicationMasterService> builder = 
-      WebApps.$for("cluster", masterService).at(
+      WebApps.$for("cluster", ApplicationMasterService.class, masterService, "ws").at(
           this.conf.get(YarnConfiguration.RM_WEBAPP_ADDRESS,
           YarnConfiguration.DEFAULT_RM_WEBAPP_ADDRESS)); 
     if(YarnConfiguration.getRMWebAppHostAndPort(conf).

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/AboutBlock.java

@@ -18,10 +18,9 @@
 
 package org.apache.hadoop.yarn.server.resourcemanager.webapp;
 
-import org.apache.hadoop.util.VersionInfo;
 import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.ClusterInfo;
 import org.apache.hadoop.yarn.util.Times;
-import org.apache.hadoop.yarn.util.YarnVersionInfo;
 import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
 import org.apache.hadoop.yarn.webapp.view.InfoBlock;
 
@@ -30,25 +29,25 @@ import com.google.inject.Inject;
 public class AboutBlock extends HtmlBlock {
   final ResourceManager rm;
 
-  @Inject 
+  @Inject
   AboutBlock(ResourceManager rm, ViewContext ctx) {
     super(ctx);
     this.rm = rm;
   }
-  
+
   @Override
   protected void render(Block html) {
     html._(MetricsOverviewTable.class);
-    long ts = ResourceManager.clusterTimeStamp;
     ResourceManager rm = getInstance(ResourceManager.class);
+    ClusterInfo cinfo = new ClusterInfo(rm);
     info("Cluster overview").
-      _("Cluster ID:", ts).
-      _("ResourceManager state:", rm.getServiceState()).
-      _("ResourceManager started on:", Times.format(ts)).
-      _("ResourceManager version:", YarnVersionInfo.getBuildVersion() +
-          " on " + YarnVersionInfo.getDate()).
-      _("Hadoop version:", VersionInfo.getBuildVersion() +
-          " on " + VersionInfo.getDate());
+      _("Cluster ID:", cinfo.getClusterId()).
+      _("ResourceManager state:", cinfo.getState()).
+      _("ResourceManager started on:", Times.format(cinfo.getStartedOn())).
+      _("ResourceManager version:", cinfo.getRMBuildVersion() +
+          " on " + cinfo.getRMVersionBuiltOn()).
+      _("Hadoop version:", cinfo.getHadoopBuildVersion() +
+          " on " + cinfo.getHadoopVersionBuiltOn());
     html._(InfoBlock.class);
   }
 

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/AppsBlock.java

@@ -23,6 +23,7 @@ import static org.apache.hadoop.yarn.webapp.view.JQueryUI._PROGRESSBAR;
 import static org.apache.hadoop.yarn.webapp.view.JQueryUI._PROGRESSBAR_VALUE;
 
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppInfo;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TABLE;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TBODY;
@@ -56,23 +57,18 @@ class AppsBlock extends HtmlBlock {
         tbody();
     int i = 0;
     for (RMApp app : list.apps.values()) {
-      String appId = app.getApplicationId().toString();
-      String trackingUrl = app.getTrackingUrl();
-      boolean trackingUrlIsNotReady = trackingUrl == null || trackingUrl.isEmpty() || "N/A".equalsIgnoreCase(trackingUrl);
-	  String ui = trackingUrlIsNotReady ? "UNASSIGNED" :
-          (app.getFinishTime() == 0 ? 
-              "ApplicationMaster" : "History");
-      String percent = String.format("%.1f", app.getProgress() * 100);
+      AppInfo appInfo = new AppInfo(app, true);
+      String percent = String.format("%.1f", appInfo.getProgress());
       tbody.
         tr().
           td().
-            br().$title(String.valueOf(app.getApplicationId().getId()))._(). // for sorting
-            a(url("app", appId), appId)._().
-          td(app.getUser().toString()).
-          td(app.getName().toString()).
-          td(app.getQueue().toString()).
-          td(app.getState().toString()).
-          td(app.getFinalApplicationStatus().toString()).
+            br().$title(appInfo.getAppIdNum())._(). // for sorting
+            a(url("app", appInfo.getAppId()), appInfo.getAppId())._().
+          td(appInfo.getUser()).
+          td(appInfo.getName()).
+          td(appInfo.getQueue()).
+          td(appInfo.getState()).
+          td(appInfo.getFinalStatus()).
           td().
             br().$title(percent)._(). // for sorting
             div(_PROGRESSBAR).
@@ -80,9 +76,9 @@ class AppsBlock extends HtmlBlock {
               div(_PROGRESSBAR_VALUE).
                 $style(join("width:", percent, '%'))._()._()._().
           td().
-            a(trackingUrlIsNotReady ?
-              "#" : join("http://", trackingUrl), ui)._().
-          td(app.getDiagnostics().toString())._();
+            a(!appInfo.isTrackingUrlReady()?
+              "#" : appInfo.getTrackingUrlPretty(), appInfo.getTrackingUI())._().
+          td(appInfo.getNote())._();
       if (list.rendering != Render.HTML && ++i >= 20) break;
     }
     tbody._()._();

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/AppsList.java

@@ -31,6 +31,7 @@ import java.util.concurrent.ConcurrentMap;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppInfo;
 import org.apache.hadoop.yarn.webapp.Controller.RequestContext;
 import org.apache.hadoop.yarn.webapp.ToJSON;
 import org.apache.hadoop.yarn.webapp.view.JQueryUI.Render;
@@ -54,31 +55,27 @@ class AppsList implements ToJSON {
     out.append('[');
     boolean first = true;
     for (RMApp app : apps.values()) {
+      AppInfo appInfo = new AppInfo(app, false);
       if (first) {
         first = false;
       } else {
         out.append(",\n");
       }
-      String appID = app.getApplicationId().toString();
-      String trackingUrl = app.getTrackingUrl();
-      boolean trackingUrlIsNotReady = trackingUrl == null
-          || trackingUrl.isEmpty() || "N/A".equalsIgnoreCase(trackingUrl);
-      String ui = trackingUrlIsNotReady ? "UNASSIGNED"
-          : (app.getFinishTime() == 0 ? "ApplicationMaster" : "History");
       out.append("[\"");
-      appendSortable(out, app.getApplicationId().getId());
-      appendLink(out, appID, rc.prefix(), "app", appID).append(_SEP).
-          append(escapeHtml(app.getUser().toString())).append(_SEP).
-          append(escapeHtml(app.getName().toString())).append(_SEP).
-          append(escapeHtml(app.getQueue())).append(_SEP).
-          append(app.getState().toString()).append(_SEP).
-          append(app.getFinalApplicationStatus().toString()).append(_SEP);
-      appendProgressBar(out, app.getProgress()).append(_SEP);
-      appendLink(out, ui, rc.prefix(),
-          trackingUrlIsNotReady ?
-            "#" : "http://", trackingUrl).
+      appendSortable(out, appInfo.getAppIdNum());
+      appendLink(out, appInfo.getAppId(), rc.prefix(), "app",
+          appInfo.getAppId()).append(_SEP).
+          append(escapeHtml(appInfo.getUser())).append(_SEP).
+          append(escapeHtml(appInfo.getName())).append(_SEP).
+          append(escapeHtml(appInfo.getQueue())).append(_SEP).
+          append(appInfo.getState()).append(_SEP).
+          append(appInfo.getFinalStatus()).append(_SEP);
+      appendProgressBar(out, appInfo.getProgress()).append(_SEP);
+      appendLink(out, appInfo.getTrackingUI(), rc.prefix(),
+          !appInfo.isTrackingUrlReady() ?
+            "#" : appInfo.getTrackingUrlPretty()).
           append(_SEP).append(escapeJavaScript(escapeHtml(
-                              app.getDiagnostics().toString()))).
+                              appInfo.getNote()))).
           append("\"]");
     }
     out.append(']');

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/CapacitySchedulerPage.java

@@ -18,19 +18,23 @@
 
 package org.apache.hadoop.yarn.server.resourcemanager.webapp;
 
-import com.google.inject.Inject;
-import com.google.inject.servlet.RequestScoped;
+import static org.apache.hadoop.yarn.util.StringHelper.join;
 
 import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CSQueue;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CSQueue;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.CapacitySchedulerInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.CapacitySchedulerQueueInfo;
 import org.apache.hadoop.yarn.webapp.SubView;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
-import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.*;
+import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.DIV;
+import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.LI;
+import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.UL;
 import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
 
-import static org.apache.hadoop.yarn.util.StringHelper.*;
+import com.google.inject.Inject;
+import com.google.inject.servlet.RequestScoped;
 
 class CapacitySchedulerPage extends RmView {
   static final String _Q = ".ui-state-default.ui-corner-all";
@@ -47,22 +51,21 @@ class CapacitySchedulerPage extends RmView {
 
   public static class QueueBlock extends HtmlBlock {
     final Parent parent;
+    final CapacitySchedulerInfo sinfo;
 
     @Inject QueueBlock(Parent parent) {
       this.parent = parent;
+      sinfo = new CapacitySchedulerInfo(parent.queue);
     }
 
     @Override
     public void render(Block html) {
       UL<Hamlet> ul = html.ul();
-      CSQueue parentQueue = parent.queue;
-      for (CSQueue queue : parentQueue.getChildQueues()) {
-        float used = queue.getUsedCapacity();
-        float set = queue.getCapacity();
+      for (CapacitySchedulerQueueInfo info : sinfo.getSubQueues()) {
+        float used = info.getUsedCapacity() / 100;
+        float set = info.getCapacity() / 100;
         float delta = Math.abs(set - used) + 0.001f;
-        float max = queue.getMaximumCapacity();
-        if (max < EPSILON || max > 1f) max = 1f;
-        //String absMaxPct = percent(queue.getAbsoluteMaximumCapacity());
+        float max = info.getMaxCapacity() / 100;
         LI<UL<Hamlet>> li = ul.
           li().
             a(_Q).$style(width(max * WIDTH_F)).
@@ -72,14 +75,16 @@ class CapacitySchedulerPage extends RmView {
               span().$style(join(width(delta/max), ';',
                 used > set ? OVER : UNDER, ';',
                 used > set ? left(set/max) : left(used/max)))._('.')._().
-              span(".q", queue.getQueuePath().substring(5))._();
-        if (queue instanceof ParentQueue) {
-          parent.queue = queue;
+              span(".q", info.getQueuePath().substring(5))._();
+        if (info.getQueue() instanceof ParentQueue) {
+          // this could be optimized better
+          parent.queue = info.getQueue();
           li.
             _(QueueBlock.class);
         }
         li._();
       }
+
       ul._();
     }
   }
@@ -111,8 +116,9 @@ class CapacitySchedulerPage extends RmView {
       } else {
         CSQueue root = cs.getRootQueue();
         parent.queue = root;
-        float used = root.getUsedCapacity();
-        float set = root.getCapacity();
+        CapacitySchedulerInfo sinfo = new CapacitySchedulerInfo(parent.queue);
+        float used = sinfo.getUsedCapacity() / 100;
+        float set = sinfo.getCapacity() / 100;
         float delta = Math.abs(set - used) + 0.001f;
         ul.
           li().

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/DefaultSchedulerPage.java

@@ -18,22 +18,20 @@
 
 package org.apache.hadoop.yarn.server.resourcemanager.webapp;
 
-import com.google.inject.Inject;
+import static org.apache.hadoop.yarn.util.StringHelper.join;
 
+import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
 import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.FifoSchedulerInfo;
 import org.apache.hadoop.yarn.webapp.SubView;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
-import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.*;
+import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.DIV;
+import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.UL;
 import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
-import org.apache.hadoop.yarn.api.records.QueueInfo;
-import org.apache.hadoop.yarn.api.records.QueueState;
-import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNodeReport;
-import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode;
 import org.apache.hadoop.yarn.webapp.view.InfoBlock;
 
-import static org.apache.hadoop.yarn.util.StringHelper.*;
+import com.google.inject.Inject;
 
 class DefaultSchedulerPage extends RmView {
   static final String _Q = ".ui-state-default.ui-corner-all";
@@ -44,66 +42,35 @@ class DefaultSchedulerPage extends RmView {
   static final float EPSILON = 1e-8f;
 
   static class QueueInfoBlock extends HtmlBlock {
-    final RMContext rmContext;
-    final FifoScheduler fs;
-    final String qName;
-    final QueueInfo qInfo;
+    final FifoSchedulerInfo sinfo;
 
     @Inject QueueInfoBlock(RMContext context, ViewContext ctx, ResourceManager rm) {
       super(ctx);
-      this.rmContext = context;
-
-      fs = (FifoScheduler) rm.getResourceScheduler();
-      qName = fs.getQueueInfo("",false,false).getQueueName();
-      qInfo = fs.getQueueInfo(qName,true,true);
+      sinfo = new FifoSchedulerInfo(rm);
     }
 
     @Override public void render(Block html) {
-      String minmemoryresource = 
-                Integer.toString(fs.getMinimumResourceCapability().getMemory());
-      String maxmemoryresource = 
-                Integer.toString(fs.getMaximumResourceCapability().getMemory());
-      String qstate = (qInfo.getQueueState() == QueueState.RUNNING) ?
-                       "Running" :
-                           (qInfo.getQueueState() == QueueState.STOPPED) ?
-                                  "Stopped" : "Unknown";
-
-      int usedNodeMem      = 0;
-      int availNodeMem     = 0;
-      int totNodeMem       = 0;
-      int nodeContainers   = 0;
-
-      for (RMNode ni : this.rmContext.getRMNodes().values()) {
-        SchedulerNodeReport report = fs.getNodeReport(ni.getNodeID());
-        usedNodeMem += report.getUsedResource().getMemory();
-        availNodeMem += report.getAvailableResource().getMemory();
-        totNodeMem += ni.getTotalCapability().getMemory();
-        nodeContainers += fs.getNodeReport(ni.getNodeID()).getNumContainers();
-      }
-
-      info("\'" + qName + "\' Queue Status").
-        _("Queue State:" , qstate).
-        _("Minimum Queue Memory Capacity:" , minmemoryresource).
-        _("Maximum Queue Memory Capacity:" , maxmemoryresource).
-        _("Number of Nodes:" , Integer.toString(this.rmContext.getRMNodes().size())).
-        _("Used Node Capacity:" , Integer.toString(usedNodeMem)).
-        _("Available Node Capacity:" , Integer.toString(availNodeMem)).
-        _("Total Node Capacity:" , Integer.toString(totNodeMem)).
-        _("Number of Node Containers:" , Integer.toString(nodeContainers));
+      info("\'" + sinfo.getQueueName() + "\' Queue Status").
+        _("Queue State:" , sinfo.getState()).
+        _("Minimum Queue Memory Capacity:" , Integer.toString(sinfo.getMinQueueMemoryCapacity())).
+        _("Maximum Queue Memory Capacity:" , Integer.toString(sinfo.getMaxQueueMemoryCapacity())).
+        _("Number of Nodes:" , Integer.toString(sinfo.getNumNodes())).
+        _("Used Node Capacity:" , Integer.toString(sinfo.getUsedNodeCapacity())).
+        _("Available Node Capacity:" , Integer.toString(sinfo.getAvailNodeCapacity())).
+        _("Total Node Capacity:" , Integer.toString(sinfo.getTotalNodeCapacity())).
+        _("Number of Node Containers:" , Integer.toString(sinfo.getNumContainers()));
 
       html._(InfoBlock.class);
     }
   }
 
   static class QueuesBlock extends HtmlBlock {
+    final FifoSchedulerInfo sinfo;
     final FifoScheduler fs;
-    final String qName;
-    final QueueInfo qInfo;
 
     @Inject QueuesBlock(ResourceManager rm) {
+      sinfo = new FifoSchedulerInfo(rm);
       fs = (FifoScheduler) rm.getResourceScheduler();
-      qName = fs.getQueueInfo("",false,false).getQueueName();
-      qInfo = fs.getQueueInfo(qName,false,false);
     }
 
     @Override
@@ -123,8 +90,8 @@ class DefaultSchedulerPage extends RmView {
               span().$style(Q_END)._("100% ")._().
               span(".q", "default")._()._();
       } else {
-        float used = qInfo.getCurrentCapacity();
-        float set = qInfo.getCapacity();
+        float used = sinfo.getUsedCapacity();
+        float set = sinfo.getCapacity();
         float delta = Math.abs(set - used) + 0.001f;
         ul.
           li().
@@ -133,7 +100,7 @@ class DefaultSchedulerPage extends RmView {
               span().$style(Q_END)._("100%")._().
               span().$style(join(width(delta), ';', used > set ? OVER : UNDER,
                 ';', used > set ? left(set) : left(used)))._(".")._().
-              span(".q", qName)._().
+              span(".q", sinfo.getQueueName())._().
             _(QueueInfoBlock.class)._();
       }
 

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/JAXBContextResolver.java

@@ -0,0 +1,70 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.resourcemanager.webapp;
+
+import com.google.inject.Singleton;
+import com.sun.jersey.api.json.JSONConfiguration;
+import com.sun.jersey.api.json.JSONJAXBContext;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
+import javax.ws.rs.ext.ContextResolver;
+import javax.ws.rs.ext.Provider;
+import javax.xml.bind.JAXBContext;
+
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppsInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.CapacitySchedulerInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.CapacitySchedulerQueueInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.ClusterInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.ClusterMetricsInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.FifoSchedulerInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.NodeInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.NodesInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.SchedulerInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.SchedulerTypeInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.UserMetricsInfo;
+
+@Singleton
+@Provider
+public class JAXBContextResolver implements ContextResolver<JAXBContext> {
+
+  private JAXBContext context;
+  private final Set<Class> types;
+
+  // you have to specify all the dao classes here
+  private final Class[] cTypes = { AppInfo.class, ClusterInfo.class,
+      CapacitySchedulerQueueInfo.class, FifoSchedulerInfo.class,
+      SchedulerTypeInfo.class, NodeInfo.class, UserMetricsInfo.class,
+      CapacitySchedulerInfo.class, ClusterMetricsInfo.class,
+      SchedulerInfo.class, AppsInfo.class, NodesInfo.class };
+
+  public JAXBContextResolver() throws Exception {
+    this.types = new HashSet<Class>(Arrays.asList(cTypes));
+    this.context = new JSONJAXBContext(JSONConfiguration.natural()
+        .rootUnwrapping(false).build(), cTypes);
+  }
+
+  @Override
+  public JAXBContext getContext(Class<?> objectType) {
+    return (types.contains(objectType)) ? context : null;
+  }
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/MetricsOverviewTable.java

@@ -19,11 +19,11 @@
 package org.apache.hadoop.yarn.server.resourcemanager.webapp;
 
 import org.apache.hadoop.util.StringUtils;
-import org.apache.hadoop.yarn.server.resourcemanager.ClusterMetrics;
 import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
 import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueMetrics;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.ClusterMetricsInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.UserMetricsInfo;
+
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.DIV;
 import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
@@ -36,12 +36,12 @@ import com.google.inject.Inject;
  * current user is using on the cluster.
  */
 public class MetricsOverviewTable extends HtmlBlock {
-  private static final long BYTES_IN_GB = 1024 * 1024 * 1024;
-  
+  private static final long BYTES_IN_MB = 1024 * 1024;
+
   private final RMContext rmContext;
   private final ResourceManager rm;
 
-  @Inject 
+  @Inject
   MetricsOverviewTable(RMContext context, ResourceManager rm, ViewContext ctx) {
     super(ctx);
     this.rmContext = context;
@@ -55,22 +55,7 @@ public class MetricsOverviewTable extends HtmlBlock {
     //CSS in the correct spot
     html.style(".metrics {margin-bottom:5px}"); 
     
-    ResourceScheduler rs = rm.getResourceScheduler();
-    QueueMetrics metrics = rs.getRootQueueMetrics();
-    ClusterMetrics clusterMetrics = ClusterMetrics.getMetrics();
-    
-    int appsSubmitted = metrics.getAppsSubmitted();
-    int reservedGB = metrics.getReservedGB();
-    int availableGB = metrics.getAvailableGB();
-    int allocatedGB = metrics.getAllocatedGB();
-    int containersAllocated = metrics.getAllocatedContainers();
-    int totalGB = availableGB + reservedGB + allocatedGB;
-
-    int totalNodes = clusterMetrics.getNumNMs();
-    int lostNodes = clusterMetrics.getNumLostNMs();
-    int unhealthyNodes = clusterMetrics.getUnhealthyNMs();
-    int decommissionedNodes = clusterMetrics.getNumDecommisionedNMs();
-    int rebootedNodes = clusterMetrics.getNumRebootedNMs();
+    ClusterMetricsInfo clusterMetrics = new ClusterMetricsInfo(this.rm, this.rmContext);
 
     
     DIV<Hamlet> div = html.div().$class("metrics");
@@ -92,30 +77,23 @@ public class MetricsOverviewTable extends HtmlBlock {
     _().
     tbody().$class("ui-widget-content").
       tr().
-        td(String.valueOf(appsSubmitted)).
-        td(String.valueOf(containersAllocated)).
-        td(StringUtils.byteDesc(allocatedGB * BYTES_IN_GB)).
-        td(StringUtils.byteDesc(totalGB * BYTES_IN_GB)).
-        td(StringUtils.byteDesc(reservedGB * BYTES_IN_GB)).
-        td().a(url("nodes"),String.valueOf(totalNodes))._(). 
-        td().a(url("nodes/decommissioned"),String.valueOf(decommissionedNodes))._(). 
-        td().a(url("nodes/lost"),String.valueOf(lostNodes))._().
-        td().a(url("nodes/unhealthy"),String.valueOf(unhealthyNodes))._().
-        td().a(url("nodes/rebooted"),String.valueOf(rebootedNodes))._().
+        td(String.valueOf(clusterMetrics.getAppsSubmitted())).
+        td(String.valueOf(clusterMetrics.getContainersAllocated())).
+        td(StringUtils.byteDesc(clusterMetrics.getAllocatedMB() * BYTES_IN_MB)).
+        td(StringUtils.byteDesc(clusterMetrics.getTotalMB() * BYTES_IN_MB)).
+        td(StringUtils.byteDesc(clusterMetrics.getReservedMB() * BYTES_IN_MB)).
+        td().a(url("nodes"),String.valueOf(clusterMetrics.getTotalNodes()))._().
+        td().a(url("nodes/decommissioned"),String.valueOf(clusterMetrics.getDecommissionedNodes()))._().
+        td().a(url("nodes/lost"),String.valueOf(clusterMetrics.getLostNodes()))._().
+        td().a(url("nodes/unhealthy"),String.valueOf(clusterMetrics.getUnhealthyNodes()))._().
+        td().a(url("nodes/rebooted"),String.valueOf(clusterMetrics.getRebootedNodes()))._().
       _().
     _()._();
-    
+
     String user = request().getRemoteUser();
     if (user != null) {
-      QueueMetrics userMetrics = metrics.getUserMetrics(user);
-      if(userMetrics != null) {
-        int myAppsSubmitted = userMetrics.getAppsSubmitted();
-        int myRunningContainers = userMetrics.getAllocatedContainers();
-        int myPendingContainers = userMetrics.getPendingContainers();
-        int myReservedContainers = userMetrics.getReservedContainers();
-        int myReservedGB = userMetrics.getReservedGB();
-        int myPendingGB = userMetrics.getPendingGB();
-        int myAllocatedGB = userMetrics.getAllocatedGB();
+      UserMetricsInfo userMetrics = new UserMetricsInfo(this.rm, this.rmContext, user);
+      if (userMetrics.metricsAvailable()) {
         div.table("#usermetricsoverview").
         thead().$class("ui-widget-header").
           tr().
@@ -130,13 +108,13 @@ public class MetricsOverviewTable extends HtmlBlock {
         _().
         tbody().$class("ui-widget-content").
           tr().
-            td(String.valueOf(myAppsSubmitted)).
-            td(String.valueOf(myRunningContainers)).
-            td(String.valueOf(myPendingContainers)).
-            td(String.valueOf(myReservedContainers)).
-            td(StringUtils.byteDesc(myAllocatedGB * BYTES_IN_GB)).
-            td(StringUtils.byteDesc(myPendingGB * BYTES_IN_GB)).
-            td(StringUtils.byteDesc(myReservedGB * BYTES_IN_GB)).
+            td(String.valueOf(userMetrics.getAppsSubmitted())).
+            td(String.valueOf(userMetrics.getRunningContainers())).
+            td(String.valueOf(userMetrics.getPendingContainers())).
+            td(String.valueOf(userMetrics.getReservedContainers())).
+            td(StringUtils.byteDesc(userMetrics.getAllocatedMB() * BYTES_IN_MB)).
+            td(StringUtils.byteDesc(userMetrics.getPendingMB() * BYTES_IN_MB)).
+            td(StringUtils.byteDesc(userMetrics.getReservedMB() * BYTES_IN_MB)).
           _().
         _()._();
       }

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/NodesPage.java

@@ -25,14 +25,12 @@ import static org.apache.hadoop.yarn.webapp.view.JQueryUI.initID;
 import static org.apache.hadoop.yarn.webapp.view.JQueryUI.tableInit;
 
 import org.apache.hadoop.util.StringUtils;
-import org.apache.hadoop.yarn.api.records.NodeHealthStatus;
-import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
 import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
 import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode;
 import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeState;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNodeReport;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.NodeInfo;
 import org.apache.hadoop.yarn.util.Times;
 import org.apache.hadoop.yarn.webapp.SubView;
 import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
@@ -45,9 +43,9 @@ import com.google.inject.Inject;
 class NodesPage extends RmView {
 
   static class NodesBlock extends HtmlBlock {
-    private static final long BYTES_IN_MB = 1024 * 1024;
     final RMContext rmContext;
     final ResourceManager rm;
+    private static final long BYTES_IN_MB = 1024 * 1024;
 
     @Inject
     NodesBlock(RMContext context, ResourceManager rm, ViewContext ctx) {
@@ -59,7 +57,7 @@ class NodesPage extends RmView {
     @Override
     protected void render(Block html) {
       html._(MetricsOverviewTable.class);
-      
+
       ResourceScheduler sched = rm.getResourceScheduler();
       String type = $(NODE_STATE);
       TBODY<TABLE<Hamlet>> tbody = html.table("#nodes").
@@ -88,27 +86,18 @@ class NodesPage extends RmView {
             continue;
           }
         }
-        NodeId id = ni.getNodeID();
-        SchedulerNodeReport report = sched.getNodeReport(id);
-        int numContainers = 0;
-        int usedMemory = 0;
-        int availableMemory = 0;
-        if(report != null) {
-          numContainers = report.getNumContainers();
-          usedMemory = report.getUsedResource().getMemory();
-          availableMemory = report.getAvailableResource().getMemory();
-        }
-
-        NodeHealthStatus health = ni.getNodeHealthStatus();
+        NodeInfo info = new NodeInfo(ni, sched);
+        int usedMemory = (int)info.getUsedMemory();
+        int availableMemory = (int)info.getAvailableMemory();
         tbody.tr().
-            td(ni.getRackName()).
-            td(String.valueOf(ni.getState())).
-            td(String.valueOf(ni.getNodeID().toString())).
-            td().a("http://" + ni.getHttpAddress(), ni.getHttpAddress())._().
-            td(health.getIsNodeHealthy() ? "Healthy" : "Unhealthy").
-            td(Times.format(health.getLastHealthReportTime())).
-            td(String.valueOf(health.getHealthReport())).
-            td(String.valueOf(numContainers)).
+            td(info.getRack()).
+            td(info.getState()).
+            td(info.getNodeId()).
+            td().a("http://" + info.getNodeHTTPAddress(), info.getNodeHTTPAddress())._().
+            td(info.getHealthStatus()).
+            td(Times.format(info.getLastHealthUpdate())).
+            td(info.getHealthReport()).
+            td(String.valueOf(info.getNumContainers())).
             td().br().$title(String.valueOf(usedMemory))._().
               _(StringUtils.byteDesc(usedMemory * BYTES_IN_MB))._().
             td().br().$title(String.valueOf(usedMemory))._().

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/RMWebApp.java

@@ -23,6 +23,7 @@ import static org.apache.hadoop.yarn.util.StringHelper.pajoin;
 import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
 import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
 import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
+import org.apache.hadoop.yarn.webapp.GenericExceptionHandler;
 import org.apache.hadoop.yarn.webapp.WebApp;
 
 /**
@@ -41,6 +42,9 @@ public class RMWebApp extends WebApp {
 
   @Override
   public void setup() {
+    bind(JAXBContextResolver.class);
+    bind(RMWebServices.class);
+    bind(GenericExceptionHandler.class);
     if (rm != null) {
       bind(ResourceManager.class).toInstance(rm);
       bind(RMContext.class).toInstance(rm.getRMContext());

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/RMWebServices.java

@@ -0,0 +1,333 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.resourcemanager.webapp;
+
+import java.io.IOException;
+import java.util.concurrent.ConcurrentMap;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.QueryParam;
+import javax.ws.rs.core.Context;
+import javax.ws.rs.core.MediaType;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.yarn.api.records.ApplicationAccessType;
+import org.apache.hadoop.yarn.api.records.ApplicationId;
+import org.apache.hadoop.yarn.api.records.NodeId;
+import org.apache.hadoop.yarn.factories.RecordFactory;
+import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
+import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppState;
+import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode;
+import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeState;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CSQueue;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppsInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.CapacitySchedulerInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.ClusterInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.ClusterMetricsInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.FifoSchedulerInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.NodeInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.NodesInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.SchedulerInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.SchedulerTypeInfo;
+import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
+import org.apache.hadoop.yarn.util.ConverterUtils;
+import org.apache.hadoop.yarn.webapp.BadRequestException;
+import org.apache.hadoop.yarn.webapp.NotFoundException;
+
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+
+@Singleton
+@Path("/ws/v1/cluster")
+public class RMWebServices {
+  private static final Log LOG = LogFactory.getLog(RMWebServices.class);
+  private final ResourceManager rm;
+  private static RecordFactory recordFactory = RecordFactoryProvider
+      .getRecordFactory(null);
+  private final ApplicationACLsManager aclsManager;
+
+  @Inject
+  public RMWebServices(final ResourceManager rm,
+      final ApplicationACLsManager aclsManager) {
+    this.rm = rm;
+    this.aclsManager = aclsManager;
+  }
+
+  protected Boolean hasAccess(RMApp app, HttpServletRequest hsr) {
+    // Check for the authorization.
+    String remoteUser = hsr.getRemoteUser();
+    UserGroupInformation callerUGI = null;
+    if (remoteUser != null) {
+      callerUGI = UserGroupInformation.createRemoteUser(remoteUser);
+    }
+    if (callerUGI != null
+        && !this.aclsManager.checkAccess(callerUGI,
+            ApplicationAccessType.VIEW_APP, app.getUser(),
+            app.getApplicationId())) {
+      return false;
+    }
+    return true;
+  }
+
+  @GET
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public ClusterInfo get() {
+    return getClusterInfo();
+  }
+
+  @GET
+  @Path("/info")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public ClusterInfo getClusterInfo() {
+    return new ClusterInfo(this.rm);
+  }
+
+  @GET
+  @Path("/metrics")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public ClusterMetricsInfo getClusterMetricsInfo() {
+    return new ClusterMetricsInfo(this.rm, this.rm.getRMContext());
+  }
+
+  @GET
+  @Path("/scheduler")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public SchedulerTypeInfo getSchedulerInfo() {
+    ResourceScheduler rs = rm.getResourceScheduler();
+    SchedulerInfo sinfo;
+    if (rs instanceof CapacityScheduler) {
+      CapacityScheduler cs = (CapacityScheduler) rs;
+      CSQueue root = cs.getRootQueue();
+      sinfo = new CapacitySchedulerInfo(root);
+    } else if (rs instanceof FifoScheduler) {
+      sinfo = new FifoSchedulerInfo(this.rm);
+    } else {
+      throw new NotFoundException("Unknown scheduler configured");
+    }
+    return new SchedulerTypeInfo(sinfo);
+  }
+
+  @GET
+  @Path("/nodes")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public NodesInfo getNodes(@QueryParam("state") String filterState,
+      @QueryParam("healthy") String healthState) {
+    ResourceScheduler sched = this.rm.getResourceScheduler();
+    if (sched == null) {
+      throw new NotFoundException("Null ResourceScheduler instance");
+    }
+
+    NodesInfo allNodes = new NodesInfo();
+    for (RMNode ni : this.rm.getRMContext().getRMNodes().values()) {
+      NodeInfo nodeInfo = new NodeInfo(ni, sched);
+      if (filterState != null) {
+        RMNodeState.valueOf(filterState);
+        if (!(nodeInfo.getState().equalsIgnoreCase(filterState))) {
+          continue;
+        }
+      }
+      if ((healthState != null) && (!healthState.isEmpty())) {
+        LOG.info("heatlh state is : " + healthState);
+        if (!healthState.equalsIgnoreCase("true")
+            && !healthState.equalsIgnoreCase("false")) {
+          String msg = "Error: You must specify either true or false to query on health";
+          throw new BadRequestException(msg);
+        }
+        if (nodeInfo.isHealthy() != Boolean.parseBoolean(healthState)) {
+          continue;
+        }
+      }
+      allNodes.add(nodeInfo);
+    }
+    return allNodes;
+  }
+
+  @GET
+  @Path("/nodes/{nodeId}")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public NodeInfo getNode(@PathParam("nodeId") String nodeId) {
+    if (nodeId == null || nodeId.isEmpty()) {
+      throw new NotFoundException("nodeId, " + nodeId + ", is empty or null");
+    }
+    ResourceScheduler sched = this.rm.getResourceScheduler();
+    if (sched == null) {
+      throw new NotFoundException("Null ResourceScheduler instance");
+    }
+    NodeId nid = ConverterUtils.toNodeId(nodeId);
+    RMNode ni = this.rm.getRMContext().getRMNodes().get(nid);
+    if (ni == null) {
+      throw new NotFoundException("nodeId, " + nodeId + ", is not found");
+    }
+    return new NodeInfo(ni, sched);
+  }
+
+  @GET
+  @Path("/apps")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public AppsInfo getApps(@Context HttpServletRequest hsr,
+      @QueryParam("state") String stateQuery,
+      @QueryParam("user") String userQuery,
+      @QueryParam("queue") String queueQuery,
+      @QueryParam("limit") String count,
+      @QueryParam("startedTimeBegin") String startedBegin,
+      @QueryParam("startedTimeEnd") String startedEnd,
+      @QueryParam("finishedTimeBegin") String finishBegin,
+      @QueryParam("finishedTimeEnd") String finishEnd) {
+    long num = 0;
+    boolean checkCount = false;
+    boolean checkStart = false;
+    boolean checkEnd = false;
+    long countNum = 0;
+
+    // set values suitable in case both of begin/end not specified
+    long sBegin = 0;
+    long sEnd = Long.MAX_VALUE;
+    long fBegin = 0;
+    long fEnd = Long.MAX_VALUE;
+
+    if (count != null && !count.isEmpty()) {
+      checkCount = true;
+      countNum = Long.parseLong(count);
+      if (countNum <= 0) {
+        throw new BadRequestException("limit value must be greater then 0");
+      }
+    }
+
+    if (startedBegin != null && !startedBegin.isEmpty()) {
+      checkStart = true;
+      sBegin = Long.parseLong(startedBegin);
+      if (sBegin < 0) {
+        throw new BadRequestException("startedTimeBegin must be greater than 0");
+      }
+    }
+    if (startedEnd != null && !startedEnd.isEmpty()) {
+      checkStart = true;
+      sEnd = Long.parseLong(startedEnd);
+      if (sEnd < 0) {
+        throw new BadRequestException("startedTimeEnd must be greater than 0");
+      }
+    }
+    if (sBegin > sEnd) {
+      throw new BadRequestException(
+          "startedTimeEnd must be greater than startTimeBegin");
+    }
+
+    if (finishBegin != null && !finishBegin.isEmpty()) {
+      checkEnd = true;
+      fBegin = Long.parseLong(finishBegin);
+      if (fBegin < 0) {
+        throw new BadRequestException("finishTimeBegin must be greater than 0");
+      }
+    }
+    if (finishEnd != null && !finishEnd.isEmpty()) {
+      checkEnd = true;
+      fEnd = Long.parseLong(finishEnd);
+      if (fEnd < 0) {
+        throw new BadRequestException("finishTimeEnd must be greater than 0");
+      }
+    }
+    if (fBegin > fEnd) {
+      throw new BadRequestException(
+          "finishTimeEnd must be greater than finishTimeBegin");
+    }
+
+    final ConcurrentMap<ApplicationId, RMApp> apps = rm.getRMContext()
+        .getRMApps();
+    AppsInfo allApps = new AppsInfo();
+    for (RMApp rmapp : apps.values()) {
+      if (checkCount && num == countNum) {
+        break;
+      }
+      AppInfo app = new AppInfo(rmapp, hasAccess(rmapp, hsr));
+
+      if (stateQuery != null && !stateQuery.isEmpty()) {
+        RMAppState.valueOf(stateQuery);
+        if (!app.getState().equalsIgnoreCase(stateQuery)) {
+          continue;
+        }
+      }
+      if (userQuery != null && !userQuery.isEmpty()) {
+        if (!app.getUser().equals(userQuery)) {
+          continue;
+        }
+      }
+      if (queueQuery != null && !queueQuery.isEmpty()) {
+        ResourceScheduler rs = rm.getResourceScheduler();
+        if (rs instanceof CapacityScheduler) {
+          CapacityScheduler cs = (CapacityScheduler) rs;
+          // validate queue exists
+          try {
+            cs.getQueueInfo(queueQuery, false, false);
+          } catch (IOException e) {
+            throw new BadRequestException(e.getMessage());
+          }
+        }
+        if (!app.getQueue().equals(queueQuery)) {
+          continue;
+        }
+      }
+
+      if (checkStart
+          && (app.getStartTime() < sBegin || app.getStartTime() > sEnd)) {
+        continue;
+      }
+      if (checkEnd
+          && (app.getFinishTime() < fBegin || app.getFinishTime() > fEnd)) {
+        continue;
+      }
+
+      allApps.add(app);
+      num++;
+    }
+    return allApps;
+  }
+
+  @GET
+  @Path("/apps/{appid}")
+  @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+  public AppInfo getApp(@Context HttpServletRequest hsr,
+      @PathParam("appid") String appId) {
+    if (appId == null || appId.isEmpty()) {
+      throw new NotFoundException("appId, " + appId + ", is empty or null");
+    }
+    ApplicationId id;
+    id = ConverterUtils.toApplicationId(recordFactory, appId);
+    if (id == null) {
+      throw new NotFoundException("appId is null");
+    }
+    RMApp app = rm.getRMContext().getRMApps().get(id);
+    if (app == null) {
+      throw new NotFoundException("app with id: " + appId + " not found");
+    }
+    return new AppInfo(app, hasAccess(app, hsr));
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/RmController.java

@@ -26,17 +26,16 @@ import javax.servlet.http.HttpServletResponse;
 
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.util.StringUtils;
-import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.records.ApplicationAccessType;
-import org.apache.hadoop.yarn.api.records.Container;
+import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
 import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppInfo;
 import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
 import org.apache.hadoop.yarn.util.Apps;
-import org.apache.hadoop.yarn.util.ConverterUtils;
 import org.apache.hadoop.yarn.util.Times;
 import org.apache.hadoop.yarn.webapp.Controller;
 import org.apache.hadoop.yarn.webapp.ResponseInfo;
@@ -73,13 +72,14 @@ public class RmController extends Controller {
     }
     ApplicationId appID = Apps.toAppID(aid);
     RMContext context = getInstance(RMContext.class);
-    RMApp app = context.getRMApps().get(appID);
-    if (app == null) {
+    RMApp rmApp = context.getRMApps().get(appID);
+    if (rmApp == null) {
       // TODO: handle redirect to jobhistory server
       setStatus(HttpServletResponse.SC_NOT_FOUND);
       setTitle("Application not found: "+ aid);
       return;
     }
+    AppInfo app = new AppInfo(rmApp, true);
 
     // Check for the authorization.
     String remoteUser = request().getRemoteUser();
@@ -98,32 +98,22 @@ public class RmController extends Controller {
     }
 
     setTitle(join("Application ", aid));
-    String trackingUrl = app.getTrackingUrl();
-    boolean trackingUrlIsNotReady = trackingUrl == null
-        || trackingUrl.isEmpty() || "N/A".equalsIgnoreCase(trackingUrl);
-    String ui = trackingUrlIsNotReady ? "UNASSIGNED" :
-        (app.getFinishTime() == 0 ? "ApplicationMaster" : "History");
 
     ResponseInfo info = info("Application Overview").
       _("User:", app.getUser()).
       _("Name:", app.getName()).
-      _("State:", app.getState().toString()).
-      _("FinalStatus:", app.getFinalApplicationStatus().toString()).
+      _("State:", app.getState()).
+      _("FinalStatus:", app.getFinalStatus()).
       _("Started:", Times.format(app.getStartTime())).
       _("Elapsed:", StringUtils.formatTime(
         Times.elapsed(app.getStartTime(), app.getFinishTime()))).
-      _("Tracking URL:", trackingUrlIsNotReady ?
-        "#" : join("http://", trackingUrl), ui).
-      _("Diagnostics:", app.getDiagnostics());
-    Container masterContainer = app.getCurrentAppAttempt()
-        .getMasterContainer();
-    if (masterContainer != null) {
-      String url = join("http://", masterContainer.getNodeHttpAddress(),
-          "/node", "/containerlogs/",
-          ConverterUtils.toString(masterContainer.getId()));
-      info._("AM container logs:", url, url);
+      _("Tracking URL:", !app.isTrackingUrlReady() ?
+        "#" : app.getTrackingUrlPretty(), app.getTrackingUI()).
+      _("Diagnostics:", app.getNote());
+    if (app.amContainerLogsExist()) {
+      info._("AM container logs:", app.getAMContainerLogs(), app.getAMContainerLogs());
     } else {
-      info._("AM container logs:", "AM not yet registered with RM");
+      info._("AM container logs:", "");
     }
     render(AppPage.class);
   }

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/AppInfo.java

@@ -0,0 +1,213 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.yarn.server.resourcemanager.webapp.dao;
+
+import static org.apache.hadoop.yarn.util.StringHelper.join;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
+
+import org.apache.hadoop.yarn.api.records.ApplicationId;
+import org.apache.hadoop.yarn.api.records.Container;
+import org.apache.hadoop.yarn.api.records.FinalApplicationStatus;
+import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppState;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttempt;
+import org.apache.hadoop.yarn.util.ConverterUtils;
+import org.apache.hadoop.yarn.util.Times;
+
+@XmlRootElement(name = "app")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class AppInfo {
+
+  @XmlTransient
+  protected String appIdNum;
+  @XmlTransient
+  protected boolean trackingUrlIsNotReady;
+  @XmlTransient
+  protected String trackingUrlPretty;
+  @XmlTransient
+  protected boolean amContainerLogsExist = false;
+  @XmlTransient
+  protected ApplicationId applicationId;
+
+  // these are ok for any user to see
+  protected String id;
+  protected String user;
+  protected String name;
+  protected String queue;
+  protected RMAppState state;
+  protected FinalApplicationStatus finalStatus;
+  protected float progress;
+  protected String trackingUI;
+  protected String trackingUrl;
+  protected String diagnostics;
+  protected long clusterId;
+
+  // these are only allowed if acls allow
+  protected long startedTime;
+  protected long finishedTime;
+  protected long elapsedTime;
+  protected String amContainerLogs;
+  protected String amHostHttpAddress;
+
+  public AppInfo() {
+  } // JAXB needs this
+
+  public AppInfo(RMApp app, Boolean hasAccess, String host) {
+    this(app, hasAccess);
+  }
+
+  public AppInfo(RMApp app, Boolean hasAccess) {
+
+    if (app != null) {
+      String trackingUrl = app.getTrackingUrl();
+      this.trackingUrlIsNotReady = trackingUrl == null || trackingUrl.isEmpty()
+          || "N/A".equalsIgnoreCase(trackingUrl);
+      this.trackingUI = this.trackingUrlIsNotReady ? "UNASSIGNED" : (app
+          .getFinishTime() == 0 ? "ApplicationMaster" : "History");
+      if (!trackingUrlIsNotReady) {
+        this.trackingUrl = join("http://", trackingUrl);
+      }
+      this.trackingUrlPretty = trackingUrlIsNotReady ? "UNASSIGNED" : join(
+          "http://", trackingUrl);
+      this.applicationId = app.getApplicationId();
+      this.appIdNum = String.valueOf(app.getApplicationId().getId());
+      this.id = app.getApplicationId().toString();
+      this.user = app.getUser().toString();
+      this.name = app.getName().toString();
+      this.queue = app.getQueue().toString();
+      this.state = app.getState();
+      this.progress = app.getProgress() * 100;
+      this.diagnostics = app.getDiagnostics().toString();
+      if (diagnostics == null || diagnostics.isEmpty()) {
+        this.diagnostics = "";
+      }
+      this.finalStatus = app.getFinalApplicationStatus();
+      this.clusterId = ResourceManager.clusterTimeStamp;
+
+      if (hasAccess) {
+        this.startedTime = app.getStartTime();
+        this.finishedTime = app.getFinishTime();
+        this.elapsedTime = Times.elapsed(app.getStartTime(),
+            app.getFinishTime());
+
+        RMAppAttempt attempt = app.getCurrentAppAttempt();
+        if (attempt != null) {
+          Container masterContainer = attempt.getMasterContainer();
+          if (masterContainer != null) {
+            this.amContainerLogsExist = true;
+            String url = join("http://", masterContainer.getNodeHttpAddress(),
+                "/node", "/containerlogs/",
+                ConverterUtils.toString(masterContainer.getId()));
+            this.amContainerLogs = url;
+            this.amHostHttpAddress = masterContainer.getNodeHttpAddress();
+          }
+        }
+      }
+    }
+  }
+
+  public boolean isTrackingUrlReady() {
+    return !this.trackingUrlIsNotReady;
+  }
+
+  public ApplicationId getApplicationId() {
+    return this.applicationId;
+  }
+
+  public String getAppId() {
+    return this.id;
+  }
+
+  public String getAppIdNum() {
+    return this.appIdNum;
+  }
+
+  public String getUser() {
+    return this.user;
+  }
+
+  public String getQueue() {
+    return this.queue;
+  }
+
+  public String getName() {
+    return this.name;
+  }
+
+  public String getState() {
+    return this.state.toString();
+  }
+
+  public float getProgress() {
+    return this.progress;
+  }
+
+  public String getTrackingUI() {
+    return this.trackingUI;
+  }
+
+  public String getNote() {
+    return this.diagnostics;
+  }
+
+  public String getFinalStatus() {
+    return this.finalStatus.toString();
+  }
+
+  public String getTrackingUrl() {
+    return this.trackingUrl;
+  }
+
+  public String getTrackingUrlPretty() {
+    return this.trackingUrlPretty;
+  }
+
+  public long getStartTime() {
+    return this.startedTime;
+  }
+
+  public long getFinishTime() {
+    return this.finishedTime;
+  }
+
+  public long getElapsedTime() {
+    return this.elapsedTime;
+  }
+
+  public String getAMContainerLogs() {
+    return this.amContainerLogs;
+  }
+
+  public String getAMHostHttpAddress() {
+    return this.amHostHttpAddress;
+  }
+
+  public boolean amContainerLogsExist() {
+    return this.amContainerLogsExist;
+  }
+
+  public long getClusterId() {
+    return this.clusterId;
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/AppsInfo.java

@@ -0,0 +1,43 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.yarn.server.resourcemanager.webapp.dao;
+
+import java.util.ArrayList;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlRootElement(name = "apps")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class AppsInfo {
+
+  protected ArrayList<AppInfo> app = new ArrayList<AppInfo>();
+
+  public AppsInfo() {
+  } // JAXB needs this
+
+  public void add(AppInfo appinfo) {
+    app.add(appinfo);
+  }
+
+  public ArrayList<AppInfo> getApps() {
+    return app;
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/CapacitySchedulerInfo.java

@@ -0,0 +1,107 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.resourcemanager.webapp.dao;
+
+import java.util.ArrayList;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
+import javax.xml.bind.annotation.XmlType;
+
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CSQueue;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue;
+
+@XmlRootElement(name = "capacityScheduler")
+@XmlType(name = "capacityScheduler")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class CapacitySchedulerInfo extends SchedulerInfo {
+
+  protected float capacity;
+  protected float usedCapacity;
+  protected float maxCapacity;
+  protected String queueName;
+  protected ArrayList<CapacitySchedulerQueueInfo> queues;
+
+  @XmlTransient
+  static final float EPSILON = 1e-8f;
+
+  public CapacitySchedulerInfo() {
+  } // JAXB needs this
+
+  public CapacitySchedulerInfo(CSQueue parent) {
+    this.queueName = parent.getQueueName();
+    this.usedCapacity = parent.getUsedCapacity() * 100;
+    this.capacity = parent.getCapacity() * 100;
+    float max = parent.getMaximumCapacity();
+    if (max < EPSILON || max > 1f)
+      max = 1f;
+    this.maxCapacity = max * 100;
+
+    queues = getQueues(parent);
+  }
+
+  public float getCapacity() {
+    return this.capacity;
+  }
+
+  public float getUsedCapacity() {
+    return this.usedCapacity;
+  }
+
+  public float getMaxCapacity() {
+    return this.maxCapacity;
+  }
+
+  public String getQueueName() {
+    return this.queueName;
+  }
+
+  public ArrayList<CapacitySchedulerQueueInfo> getSubQueues() {
+    return this.queues;
+  }
+
+  protected ArrayList<CapacitySchedulerQueueInfo> getQueues(CSQueue parent) {
+    CSQueue parentQueue = parent;
+    ArrayList<CapacitySchedulerQueueInfo> queuesInfo = new ArrayList<CapacitySchedulerQueueInfo>();
+    for (CSQueue queue : parentQueue.getChildQueues()) {
+      float usedCapacity = queue.getUsedCapacity() * 100;
+      float capacity = queue.getCapacity() * 100;
+      String queueName = queue.getQueueName();
+      String queuePath = queue.getQueuePath();
+      float max = queue.getMaximumCapacity();
+      if (max < EPSILON || max > 1f)
+        max = 1f;
+      float maxCapacity = max * 100;
+      String state = queue.getState().toString();
+      CapacitySchedulerQueueInfo info = new CapacitySchedulerQueueInfo(
+          capacity, usedCapacity, maxCapacity, queueName, state, queuePath);
+
+      if (queue instanceof ParentQueue) {
+        info.isParent = true;
+        info.queue = queue;
+        info.subQueues = getQueues(queue);
+      }
+      queuesInfo.add(info);
+    }
+    return queuesInfo;
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/CapacitySchedulerQueueInfo.java

@@ -0,0 +1,98 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.yarn.server.resourcemanager.webapp.dao;
+
+import java.util.ArrayList;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
+
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CSQueue;
+
+@XmlRootElement
+@XmlAccessorType(XmlAccessType.FIELD)
+public class CapacitySchedulerQueueInfo {
+
+  @XmlTransient
+  protected String queuePath;
+  @XmlTransient
+  protected Boolean isParent = false;
+
+  // bit odd to store this but makes html easier for now
+  @XmlTransient
+  protected CSQueue queue;
+
+  protected float capacity;
+  protected float usedCapacity;
+  protected float maxCapacity;
+  protected String queueName;
+  protected String state;
+  protected ArrayList<CapacitySchedulerQueueInfo> subQueues;
+
+  CapacitySchedulerQueueInfo() {
+  };
+
+  CapacitySchedulerQueueInfo(float cap, float used, float max, String name,
+      String state, String path) {
+    this.capacity = cap;
+    this.usedCapacity = used;
+    this.maxCapacity = max;
+    this.queueName = name;
+    this.state = state;
+    this.queuePath = path;
+  }
+
+  public Boolean isParent() {
+    return this.isParent;
+  }
+
+  public CSQueue getQueue() {
+    return this.queue;
+  }
+
+  public float getCapacity() {
+    return this.capacity;
+  }
+
+  public float getUsedCapacity() {
+    return this.usedCapacity;
+  }
+
+  public float getMaxCapacity() {
+    return this.maxCapacity;
+  }
+
+  public String getQueueName() {
+    return this.queueName;
+  }
+
+  public String getQueueState() {
+    return this.state;
+  }
+
+  public String getQueuePath() {
+    return this.queuePath;
+  }
+
+  public ArrayList<CapacitySchedulerQueueInfo> getSubQueues() {
+    return this.subQueues;
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/ClusterInfo.java

@@ -0,0 +1,95 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.yarn.server.resourcemanager.webapp.dao;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import org.apache.hadoop.util.VersionInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
+import org.apache.hadoop.yarn.util.YarnVersionInfo;
+
+@XmlRootElement
+@XmlAccessorType(XmlAccessType.FIELD)
+public class ClusterInfo {
+
+  protected long id;
+  protected long startedOn;
+  protected String state;
+  protected String resourceManagerVersion;
+  protected String resourceManagerBuildVersion;
+  protected String resourceManagerVersionBuiltOn;
+  protected String hadoopVersion;
+  protected String hadoopBuildVersion;
+  protected String hadoopVersionBuiltOn;
+
+  public ClusterInfo() {
+  } // JAXB needs this
+
+  public ClusterInfo(ResourceManager rm) {
+    long ts = ResourceManager.clusterTimeStamp;
+
+    this.id = ts;
+    this.state = rm.getServiceState().toString();
+    this.startedOn = ts;
+    this.resourceManagerVersion = YarnVersionInfo.getVersion();
+    this.resourceManagerBuildVersion = YarnVersionInfo.getBuildVersion();
+    this.resourceManagerVersionBuiltOn = YarnVersionInfo.getDate();
+    this.hadoopVersion = VersionInfo.getVersion();
+    this.hadoopBuildVersion = VersionInfo.getBuildVersion();
+    this.hadoopVersionBuiltOn = VersionInfo.getDate();
+  }
+
+  public String getState() {
+    return this.state;
+  }
+
+  public String getRMVersion() {
+    return this.resourceManagerVersion;
+  }
+
+  public String getRMBuildVersion() {
+    return this.resourceManagerBuildVersion;
+  }
+
+  public String getRMVersionBuiltOn() {
+    return this.resourceManagerVersionBuiltOn;
+  }
+
+  public String getHadoopVersion() {
+    return this.hadoopVersion;
+  }
+
+  public String getHadoopBuildVersion() {
+    return this.hadoopBuildVersion;
+  }
+
+  public String getHadoopVersionBuiltOn() {
+    return this.hadoopVersionBuiltOn;
+  }
+
+  public long getClusterId() {
+    return this.id;
+  }
+
+  public long getStartedOn() {
+    return this.startedOn;
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/ClusterMetricsInfo.java

@@ -0,0 +1,114 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.yarn.server.resourcemanager.webapp.dao;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import org.apache.hadoop.yarn.server.resourcemanager.ClusterMetrics;
+import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
+import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueMetrics;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
+
+@XmlRootElement(name = "clusterMetrics")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class ClusterMetricsInfo {
+
+  private static final long MB_IN_GB = 1024;
+
+  protected int appsSubmitted;
+  protected long reservedMB;
+  protected long availableMB;
+  protected long allocatedMB;
+  protected int containersAllocated;
+  protected long totalMB;
+  protected int totalNodes;
+  protected int lostNodes;
+  protected int unhealthyNodes;
+  protected int decommissionedNodes;
+  protected int rebootedNodes;
+
+  public ClusterMetricsInfo() {
+  } // JAXB needs this
+
+  public ClusterMetricsInfo(final ResourceManager rm, final RMContext rmContext) {
+    ResourceScheduler rs = rm.getResourceScheduler();
+    QueueMetrics metrics = rs.getRootQueueMetrics();
+    ClusterMetrics clusterMetrics = ClusterMetrics.getMetrics();
+
+    this.appsSubmitted = metrics.getAppsSubmitted();
+    this.reservedMB = metrics.getReservedGB() * MB_IN_GB;
+    this.availableMB = metrics.getAvailableGB() * MB_IN_GB;
+    this.allocatedMB = metrics.getAllocatedGB() * MB_IN_GB;
+    this.containersAllocated = metrics.getAllocatedContainers();
+    this.totalMB = availableMB + reservedMB + allocatedMB;
+    this.totalNodes = clusterMetrics.getNumNMs();
+    this.lostNodes = clusterMetrics.getNumLostNMs();
+    this.unhealthyNodes = clusterMetrics.getUnhealthyNMs();
+    this.decommissionedNodes = clusterMetrics.getNumDecommisionedNMs();
+    this.rebootedNodes = clusterMetrics.getNumRebootedNMs();
+
+  }
+
+  public int getAppsSubmitted() {
+    return this.appsSubmitted;
+  }
+
+  public long getReservedMB() {
+    return this.reservedMB;
+  }
+
+  public long getAvailableMB() {
+    return this.availableMB;
+  }
+
+  public long getAllocatedMB() {
+    return this.allocatedMB;
+  }
+
+  public int getContainersAllocated() {
+    return this.containersAllocated;
+  }
+
+  public long getTotalMB() {
+    return this.totalMB;
+  }
+
+  public int getTotalNodes() {
+    return this.totalNodes;
+  }
+
+  public int getLostNodes() {
+    return this.lostNodes;
+  }
+
+  public int getRebootedNodes() {
+    return this.rebootedNodes;
+  }
+
+  public int getUnhealthyNodes() {
+    return this.unhealthyNodes;
+  }
+
+  public int getDecommissionedNodes() {
+    return this.decommissionedNodes;
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/FifoSchedulerInfo.java

@@ -0,0 +1,133 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.resourcemanager.webapp.dao;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
+import javax.xml.bind.annotation.XmlType;
+
+import org.apache.hadoop.yarn.api.records.QueueInfo;
+import org.apache.hadoop.yarn.api.records.QueueState;
+import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
+import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
+import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNodeReport;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler;
+
+@XmlRootElement(name = "fifoScheduler")
+@XmlType(name = "fifoScheduler")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class FifoSchedulerInfo extends SchedulerInfo {
+
+  protected float capacity;
+  protected float usedCapacity;
+  protected QueueState qstate;
+  protected int minQueueMemoryCapacity;
+  protected int maxQueueMemoryCapacity;
+  protected int numNodes;
+  protected int usedNodeCapacity;
+  protected int availNodeCapacity;
+  protected int totalNodeCapacity;
+  protected int numContainers;
+
+  @XmlTransient
+  protected String qstateFormatted;
+
+  @XmlTransient
+  protected String qName;
+
+  public FifoSchedulerInfo() {
+  } // JAXB needs this
+
+  public FifoSchedulerInfo(final ResourceManager rm) {
+
+    RMContext rmContext = rm.getRMContext();
+
+    FifoScheduler fs = (FifoScheduler) rm.getResourceScheduler();
+    qName = fs.getQueueInfo("", false, false).getQueueName();
+    QueueInfo qInfo = fs.getQueueInfo(qName, true, true);
+
+    this.usedCapacity = qInfo.getCurrentCapacity();
+    this.capacity = qInfo.getCapacity();
+    this.minQueueMemoryCapacity = fs.getMinimumResourceCapability().getMemory();
+    this.maxQueueMemoryCapacity = fs.getMaximumResourceCapability().getMemory();
+    this.qstate = qInfo.getQueueState();
+
+    this.numNodes = rmContext.getRMNodes().size();
+    this.usedNodeCapacity = 0;
+    this.availNodeCapacity = 0;
+    this.totalNodeCapacity = 0;
+    this.numContainers = 0;
+
+    for (RMNode ni : rmContext.getRMNodes().values()) {
+      SchedulerNodeReport report = fs.getNodeReport(ni.getNodeID());
+      this.usedNodeCapacity += report.getUsedResource().getMemory();
+      this.availNodeCapacity += report.getAvailableResource().getMemory();
+      this.totalNodeCapacity += ni.getTotalCapability().getMemory();
+      this.numContainers += fs.getNodeReport(ni.getNodeID()).getNumContainers();
+    }
+  }
+
+  public int getNumNodes() {
+    return this.numNodes;
+  }
+
+  public int getUsedNodeCapacity() {
+    return this.usedNodeCapacity;
+  }
+
+  public int getAvailNodeCapacity() {
+    return this.availNodeCapacity;
+  }
+
+  public int getTotalNodeCapacity() {
+    return this.totalNodeCapacity;
+  }
+
+  public int getNumContainers() {
+    return this.numContainers;
+  }
+
+  public String getState() {
+    return this.qstate.toString();
+  }
+
+  public String getQueueName() {
+    return this.qName;
+  }
+
+  public int getMinQueueMemoryCapacity() {
+    return this.minQueueMemoryCapacity;
+  }
+
+  public int getMaxQueueMemoryCapacity() {
+    return this.maxQueueMemoryCapacity;
+  }
+
+  public float getCapacity() {
+    return this.capacity;
+  }
+
+  public float getUsedCapacity() {
+    return this.usedCapacity;
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/NodeInfo.java

@@ -0,0 +1,122 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.resourcemanager.webapp.dao;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
+
+import org.apache.hadoop.yarn.api.records.NodeHealthStatus;
+import org.apache.hadoop.yarn.api.records.NodeId;
+import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode;
+import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeState;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNodeReport;
+
+@XmlRootElement(name = "node")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class NodeInfo {
+
+  protected String rack;
+  protected RMNodeState state;
+  protected String id;
+  protected String nodeHostName;
+  protected String nodeHTTPAddress;
+  protected String healthStatus;
+  protected long lastHealthUpdate;
+  protected String healthReport;
+  protected int numContainers;
+  protected long usedMemoryMB;
+  protected long availMemoryMB;
+
+  @XmlTransient
+  protected boolean healthy;
+
+  public NodeInfo() {
+  } // JAXB needs this
+
+  public NodeInfo(RMNode ni, ResourceScheduler sched) {
+    NodeId id = ni.getNodeID();
+    SchedulerNodeReport report = sched.getNodeReport(id);
+    NodeHealthStatus health = ni.getNodeHealthStatus();
+    this.numContainers = 0;
+    this.usedMemoryMB = 0;
+    this.availMemoryMB = 0;
+    if (report != null) {
+      this.numContainers = report.getNumContainers();
+      this.usedMemoryMB = report.getUsedResource().getMemory();
+      this.availMemoryMB = report.getAvailableResource().getMemory();
+    }
+    this.id = id.toString();
+    this.rack = ni.getRackName();
+    this.nodeHostName = ni.getHostName();
+    this.state = ni.getState();
+    this.nodeHTTPAddress = ni.getHttpAddress();
+    this.healthy = health.getIsNodeHealthy();
+    this.healthStatus = health.getIsNodeHealthy() ? "Healthy" : "Unhealthy";
+    this.lastHealthUpdate = health.getLastHealthReportTime();
+    this.healthReport = String.valueOf(health.getHealthReport());
+  }
+
+  public boolean isHealthy() {
+    return this.healthy;
+  }
+
+  public String getRack() {
+    return this.rack;
+  }
+
+  public String getState() {
+    return String.valueOf(this.state);
+  }
+
+  public String getNodeId() {
+    return this.id;
+  }
+
+  public String getNodeHTTPAddress() {
+    return this.nodeHTTPAddress;
+  }
+
+  public String getHealthStatus() {
+    return this.healthStatus;
+  }
+
+  public long getLastHealthUpdate() {
+    return this.lastHealthUpdate;
+  }
+
+  public String getHealthReport() {
+    return this.healthReport;
+  }
+
+  public int getNumContainers() {
+    return this.numContainers;
+  }
+
+  public long getUsedMemory() {
+    return this.usedMemoryMB;
+  }
+
+  public long getAvailableMemory() {
+    return this.availMemoryMB;
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/NodesInfo.java

@@ -0,0 +1,39 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.yarn.server.resourcemanager.webapp.dao;
+
+import java.util.ArrayList;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlRootElement(name = "nodes")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class NodesInfo {
+
+  protected ArrayList<NodeInfo> node = new ArrayList<NodeInfo>();
+
+  public NodesInfo() {
+  } // JAXB needs this
+
+  public void add(NodeInfo nodeinfo) {
+    node.add(nodeinfo);
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/SchedulerInfo.java

@@ -0,0 +1,31 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.resourcemanager.webapp.dao;
+
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlSeeAlso;
+
+@XmlRootElement
+@XmlSeeAlso({ CapacitySchedulerInfo.class, FifoSchedulerInfo.class })
+public class SchedulerInfo {
+
+  public SchedulerInfo() {
+  } // JAXB needs this
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/SchedulerTypeInfo.java

@@ -0,0 +1,37 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.resourcemanager.webapp.dao;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlRootElement(name = "scheduler")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class SchedulerTypeInfo {
+  protected SchedulerInfo schedulerInfo;
+
+  public SchedulerTypeInfo() {
+  } // JAXB needs this
+
+  public SchedulerTypeInfo(final SchedulerInfo scheduler) {
+    this.schedulerInfo = scheduler;
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/UserMetricsInfo.java

@@ -0,0 +1,100 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.yarn.server.resourcemanager.webapp.dao;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
+
+import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
+import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueMetrics;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
+
+@XmlRootElement(name = "userMetrics")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class UserMetricsInfo {
+
+  private static final long MB_IN_GB = 1024;
+
+  protected int appsSubmitted;
+  protected int runningContainers;
+  protected int pendingContainers;
+  protected int reservedContainers;
+  protected long reservedMB;
+  protected long pendingMB;
+  protected long allocatedMB;
+
+  @XmlTransient
+  protected boolean userMetricsAvailable;
+
+  public UserMetricsInfo() {
+  } // JAXB needs this
+
+  public UserMetricsInfo(final ResourceManager rm, final RMContext rmContext,
+      final String user) {
+    ResourceScheduler rs = rm.getResourceScheduler();
+    QueueMetrics metrics = rs.getRootQueueMetrics();
+    QueueMetrics userMetrics = metrics.getUserMetrics(user);
+    this.userMetricsAvailable = false;
+
+    if (userMetrics != null) {
+      this.userMetricsAvailable = true;
+      this.appsSubmitted = userMetrics.getAppsSubmitted();
+      this.runningContainers = userMetrics.getAllocatedContainers();
+      this.pendingContainers = userMetrics.getPendingContainers();
+      this.reservedContainers = userMetrics.getReservedContainers();
+      this.reservedMB = userMetrics.getReservedGB() * MB_IN_GB;
+      this.pendingMB = userMetrics.getPendingGB() * MB_IN_GB;
+      this.allocatedMB = userMetrics.getAllocatedGB() * MB_IN_GB;
+    }
+  }
+
+  public boolean metricsAvailable() {
+    return userMetricsAvailable;
+  }
+
+  public int getAppsSubmitted() {
+    return this.appsSubmitted;
+  }
+
+  public long getReservedMB() {
+    return this.reservedMB;
+  }
+
+  public long getAllocatedMB() {
+    return this.allocatedMB;
+  }
+
+  public long getPendingMB() {
+    return this.pendingMB;
+  }
+
+  public int getReservedContainers() {
+    return this.reservedContainers;
+  }
+
+  public int getRunningContainers() {
+    return this.runningContainers;
+  }
+
+  public int getPendingContainers() {
+    return this.pendingContainers;
+  }
+}

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/MockRM.java

@@ -30,7 +30,9 @@ import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext;
 import org.apache.hadoop.yarn.api.records.ContainerLaunchContext;
+import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.Resource;
+import org.apache.hadoop.yarn.event.Dispatcher;
 import org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncherEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.amlauncher.ApplicationMasterLauncher;
 import org.apache.hadoop.yarn.server.resourcemanager.recovery.StoreFactory;
@@ -40,12 +42,16 @@ import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptE
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptEventType;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptState;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptLaunchFailedEvent;
+import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode;
+import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeEvent;
+import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeEventType;
+import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeImpl;
+import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeState;
 import org.apache.hadoop.yarn.util.Records;
 import org.apache.log4j.Level;
 import org.apache.log4j.LogManager;
 import org.apache.log4j.Logger;
 
-
 public class MockRM extends ResourceManager {
 
   public MockRM() {
@@ -59,48 +65,50 @@ public class MockRM extends ResourceManager {
     rootLogger.setLevel(Level.DEBUG);
   }
 
-  public void waitForState(ApplicationId appId, RMAppState finalState) 
+  public void waitForState(ApplicationId appId, RMAppState finalState)
       throws Exception {
     RMApp app = getRMContext().getRMApps().get(appId);
     Assert.assertNotNull("app shouldn't be null", app);
     int timeoutSecs = 0;
-    while (!finalState.equals(app.getState()) &&
-        timeoutSecs++ < 20) {
-      System.out.println("App State is : " + app.getState() +
-          " Waiting for state : " + finalState);
+    while (!finalState.equals(app.getState()) && timeoutSecs++ < 20) {
+      System.out.println("App State is : " + app.getState()
+          + " Waiting for state : " + finalState);
       Thread.sleep(500);
     }
     System.out.println("App State is : " + app.getState());
-    Assert.assertEquals("App state is not correct (timedout)",
-        finalState, app.getState());
+    Assert.assertEquals("App state is not correct (timedout)", finalState,
+        app.getState());
   }
-  
-  // get new application id 
+
+  // get new application id
   public GetNewApplicationResponse getNewAppId() throws Exception {
     ClientRMProtocol client = getClientRMService();
-    return client.getNewApplication(Records.newRecord(GetNewApplicationRequest.class));	  
+    return client.getNewApplication(Records
+        .newRecord(GetNewApplicationRequest.class));
   }
 
-  //client
+  // client
   public RMApp submitApp(int masterMemory) throws Exception {
     ClientRMProtocol client = getClientRMService();
-    GetNewApplicationResponse resp = client.getNewApplication(Records.newRecord(GetNewApplicationRequest.class));
+    GetNewApplicationResponse resp = client.getNewApplication(Records
+        .newRecord(GetNewApplicationRequest.class));
     ApplicationId appId = resp.getApplicationId();
-    
-    SubmitApplicationRequest req = Records.newRecord(SubmitApplicationRequest.class);
-    ApplicationSubmissionContext sub = 
-        Records.newRecord(ApplicationSubmissionContext.class);
+
+    SubmitApplicationRequest req = Records
+        .newRecord(SubmitApplicationRequest.class);
+    ApplicationSubmissionContext sub = Records
+        .newRecord(ApplicationSubmissionContext.class);
     sub.setApplicationId(appId);
     sub.setApplicationName("");
     sub.setUser("");
-    ContainerLaunchContext clc = 
-        Records.newRecord(ContainerLaunchContext.class);
-    Resource capability = Records.newRecord(Resource.class);    
+    ContainerLaunchContext clc = Records
+        .newRecord(ContainerLaunchContext.class);
+    Resource capability = Records.newRecord(Resource.class);
     capability.setMemory(masterMemory);
     clc.setResource(capability);
     sub.setAMContainerSpec(clc);
     req.setApplicationSubmissionContext(sub);
-    
+
     client.submitApplication(req);
     // make sure app is immediately available after submit
     waitForState(appId, RMAppState.ACCEPTED);
@@ -113,28 +121,54 @@ public class MockRM extends ResourceManager {
     return nm;
   }
 
+  public void sendNodeStarted(MockNM nm) throws Exception {
+    RMNodeImpl node = (RMNodeImpl) getRMContext().getRMNodes().get(
+        nm.getNodeId());
+    node.handle(new RMNodeEvent(nm.getNodeId(), RMNodeEventType.STARTED));
+  }
+
+  public void NMwaitForState(NodeId nodeid, RMNodeState finalState)
+      throws Exception {
+    RMNode node = getRMContext().getRMNodes().get(nodeid);
+    Assert.assertNotNull("node shouldn't be null", node);
+    int timeoutSecs = 0;
+    while (!finalState.equals(node.getState()) && timeoutSecs++ < 20) {
+      System.out.println("Node State is : " + node.getState()
+          + " Waiting for state : " + finalState);
+      Thread.sleep(500);
+    }
+    System.out.println("Node State is : " + node.getState());
+    Assert.assertEquals("Node state is not correct (timedout)", finalState,
+        node.getState());
+  }
+
   public void killApp(ApplicationId appId) throws Exception {
     ClientRMProtocol client = getClientRMService();
-    KillApplicationRequest req = Records.newRecord(KillApplicationRequest.class);
+    KillApplicationRequest req = Records
+        .newRecord(KillApplicationRequest.class);
     req.setApplicationId(appId);
     client.forceKillApplication(req);
   }
 
-  //from AMLauncher
-  public MockAM sendAMLaunched(ApplicationAttemptId appAttemptId) throws Exception {
+  // from AMLauncher
+  public MockAM sendAMLaunched(ApplicationAttemptId appAttemptId)
+      throws Exception {
     MockAM am = new MockAM(getRMContext(), masterService, appAttemptId);
     am.waitForState(RMAppAttemptState.ALLOCATED);
-    getRMContext().getDispatcher().getEventHandler().handle(
-        new RMAppAttemptEvent(appAttemptId, RMAppAttemptEventType.LAUNCHED));
+    getRMContext()
+        .getDispatcher()
+        .getEventHandler()
+        .handle(
+            new RMAppAttemptEvent(appAttemptId, RMAppAttemptEventType.LAUNCHED));
     return am;
   }
 
-  
-  public void sendAMLaunchFailed(ApplicationAttemptId appAttemptId) throws Exception {
+  public void sendAMLaunchFailed(ApplicationAttemptId appAttemptId)
+      throws Exception {
     MockAM am = new MockAM(getRMContext(), masterService, appAttemptId);
     am.waitForState(RMAppAttemptState.ALLOCATED);
-    getRMContext().getDispatcher().getEventHandler().handle(
-        new RMAppAttemptLaunchFailedEvent(appAttemptId, "Failed"));
+    getRMContext().getDispatcher().getEventHandler()
+        .handle(new RMAppAttemptLaunchFailedEvent(appAttemptId, "Failed"));
   }
 
   @Override
@@ -143,8 +177,9 @@ public class MockRM extends ResourceManager {
         rmAppManager, applicationACLsManager) {
       @Override
       public void start() {
-        //override to not start rpc handler
+        // override to not start rpc handler
       }
+
       @Override
       public void stop() {
         // don't do anything
@@ -155,11 +190,12 @@ public class MockRM extends ResourceManager {
   @Override
   protected ResourceTrackerService createResourceTrackerService() {
     return new ResourceTrackerService(getRMContext(), nodesListManager,
-        this.nmLivelinessMonitor, this.containerTokenSecretManager){
+        this.nmLivelinessMonitor, this.containerTokenSecretManager) {
       @Override
       public void start() {
-        //override to not start rpc handler
+        // override to not start rpc handler
       }
+
       @Override
       public void stop() {
         // don't do anything
@@ -173,8 +209,9 @@ public class MockRM extends ResourceManager {
         this.appTokenSecretManager, scheduler) {
       @Override
       public void start() {
-        //override to not start rpc handler
+        // override to not start rpc handler
       }
+
       @Override
       public void stop() {
         // don't do anything
@@ -184,17 +221,18 @@ public class MockRM extends ResourceManager {
 
   @Override
   protected ApplicationMasterLauncher createAMLauncher() {
-    return new ApplicationMasterLauncher(
-        this.appTokenSecretManager, this.clientToAMSecretManager,
-        getRMContext()) {
+    return new ApplicationMasterLauncher(this.appTokenSecretManager,
+        this.clientToAMSecretManager, getRMContext()) {
       @Override
       public void start() {
-        //override to not start rpc handler
+        // override to not start rpc handler
       }
+
       @Override
-      public void  handle(AMLauncherEvent appEvent) {
-        //don't do anything
+      public void handle(AMLauncherEvent appEvent) {
+        // don't do anything
       }
+
       @Override
       public void stop() {
         // don't do anything
@@ -203,31 +241,31 @@ public class MockRM extends ResourceManager {
   }
 
   @Override
-  protected AdminService createAdminService(
-      ClientRMService clientRMService, 
+  protected AdminService createAdminService(ClientRMService clientRMService,
       ApplicationMasterService applicationMasterService,
       ResourceTrackerService resourceTrackerService) {
-    return new AdminService(
-        getConfig(), scheduler, getRMContext(), this.nodesListManager,
-        clientRMService, applicationMasterService, resourceTrackerService){
+    return new AdminService(getConfig(), scheduler, getRMContext(),
+        this.nodesListManager, clientRMService, applicationMasterService,
+        resourceTrackerService) {
       @Override
       public void start() {
-        //override to not start rpc handler
+        // override to not start rpc handler
       }
+
       @Override
       public void stop() {
         // don't do anything
       }
     };
   }
-  
+
   public NodesListManager getNodesListManager() {
     return this.nodesListManager;
   }
 
   @Override
   protected void startWepApp() {
-    //override to disable webapp
+    // override to disable webapp
   }
 
 }

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/applicationsmanager/MockAsm.java

@@ -284,6 +284,11 @@ public abstract class MockAsm extends MockApps {
       public FinalApplicationStatus getFinalApplicationStatus() {
         return FinalApplicationStatus.UNDEFINED;
       }
+
+      @Override
+      public RMAppAttempt getCurrentAppAttempt() {
+        return null;
+      }
       
     };
   }

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/TestRMWebServices.java

@@ -0,0 +1,1101 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.yarn.server.resourcemanager.webapp;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.util.ArrayList;
+
+import javax.ws.rs.core.MediaType;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.yarn.api.records.ContainerStatus;
+import org.apache.hadoop.yarn.api.records.FinalApplicationStatus;
+import org.apache.hadoop.yarn.api.records.NodeHealthStatus;
+import org.apache.hadoop.yarn.api.records.QueueState;
+import org.apache.hadoop.yarn.server.resourcemanager.MockAM;
+import org.apache.hadoop.yarn.server.resourcemanager.MockNM;
+import org.apache.hadoop.yarn.server.resourcemanager.MockRM;
+import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
+import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppState;
+import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode;
+import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeImpl;
+import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeState;
+import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeStatusEvent;
+import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
+import org.apache.hadoop.yarn.webapp.GenericExceptionHandler;
+import org.codehaus.jettison.json.JSONArray;
+import org.codehaus.jettison.json.JSONException;
+import org.codehaus.jettison.json.JSONObject;
+import org.junit.Before;
+import org.junit.Test;
+
+import com.google.inject.Guice;
+import com.google.inject.Injector;
+import com.google.inject.servlet.GuiceServletContextListener;
+import com.google.inject.servlet.ServletModule;
+import com.sun.jersey.api.client.ClientResponse;
+import com.sun.jersey.api.client.ClientResponse.Status;
+import com.sun.jersey.api.client.UniformInterfaceException;
+import com.sun.jersey.api.client.WebResource;
+import com.sun.jersey.guice.spi.container.servlet.GuiceContainer;
+import com.sun.jersey.test.framework.JerseyTest;
+import com.sun.jersey.test.framework.WebAppDescriptor;
+
+public class TestRMWebServices extends JerseyTest {
+
+  private static MockRM rm;
+
+  private Injector injector = Guice.createInjector(new ServletModule() {
+    @Override
+    protected void configureServlets() {
+      bind(JAXBContextResolver.class);
+      bind(RMWebServices.class);
+      bind(GenericExceptionHandler.class);
+      rm = new MockRM(new Configuration());
+      bind(ResourceManager.class).toInstance(rm);
+      bind(RMContext.class).toInstance(rm.getRMContext());
+      bind(ApplicationACLsManager.class).toInstance(
+          rm.getApplicationACLsManager());
+      serve("/*").with(GuiceContainer.class);
+    }
+  });
+
+  public class GuiceServletConfig extends GuiceServletContextListener {
+
+    @Override
+    protected Injector getInjector() {
+      return injector;
+    }
+  }
+
+  @Before
+  @Override
+  public void setUp() throws Exception {
+    super.setUp();
+  }
+
+  public TestRMWebServices() {
+    super(new WebAppDescriptor.Builder(
+        "org.apache.hadoop.yarn.server.resourcemanager.webapp")
+        .contextListenerClass(GuiceServletConfig.class)
+        .filterClass(com.google.inject.servlet.GuiceFilter.class)
+        .contextPath("jersey-guice-filter").servletPath("/").build());
+  }
+
+  @Test
+  public void testCluster() throws JSONException, Exception {
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster")
+        .accept(MediaType.APPLICATION_JSON).get(JSONObject.class);
+    verifyClusterInfo(json);
+  }
+
+  @Test
+  public void testClusterSlash() throws JSONException, Exception {
+    WebResource r = resource();
+    // test with trailing "/" to make sure acts same as without slash
+    JSONObject json = r.path("ws").path("v1").path("cluster/")
+        .accept(MediaType.APPLICATION_JSON).get(JSONObject.class);
+    verifyClusterInfo(json);
+  }
+
+  @Test
+  public void testInfo() throws JSONException, Exception {
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("info")
+        .accept(MediaType.APPLICATION_JSON).get(JSONObject.class);
+    verifyClusterInfo(json);
+  }
+
+  @Test
+  public void testInfoSlash() throws JSONException, Exception {
+    WebResource r = resource();
+    // test with trailing "/" to make sure acts same as without slash
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("info/")
+        .accept(MediaType.APPLICATION_JSON).get(JSONObject.class);
+    verifyClusterInfo(json);
+  }
+
+  public void verifyClusterInfo(JSONObject json) throws JSONException,
+      Exception {
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject clusterinfo = json.getJSONObject("clusterInfo");
+    assertEquals("correct number of elements", 9, clusterinfo.length());
+    String clusterid = clusterinfo.get("id").toString();
+    assertTrue("clusterId doesn't match: " + clusterid, clusterid.toString()
+        .matches("^\\d+"));
+    String startedon = clusterinfo.get("startedOn").toString();
+    assertTrue("startedOn doesn't match: " + startedon,
+        startedon.matches("^\\d+"));
+    String state = clusterinfo.get("state").toString();
+    assertTrue("stated doesn't match: " + state, state.matches("INITED"));
+    String rmVersion = clusterinfo.get("resourceManagerVersion").toString();
+    assertTrue("rm version doesn't match: " + rmVersion,
+        rmVersion.matches(".*"));
+    String rmBuildVersion = clusterinfo.get("resourceManagerBuildVersion")
+        .toString();
+    assertTrue("rm Build version doesn't match: " + rmBuildVersion,
+        rmBuildVersion.matches(".*"));
+    String rmVersionBuiltOn = clusterinfo.get("resourceManagerVersionBuiltOn")
+        .toString();
+    assertTrue(
+        "rm version built on doesn't match: " + rmVersionBuiltOn,
+        rmVersionBuiltOn
+            .matches("^\\w+\\s+\\w+\\s+\\d+\\s+\\d\\d:\\d\\d:\\d\\d\\s+\\w+\\s+\\d\\d\\d\\d"));
+    String hadoopVersion = clusterinfo.get("hadoopVersion").toString();
+    assertTrue("hadoop version doesn't match: " + hadoopVersion,
+        hadoopVersion.matches(".*"));
+    String hadoopBuildVersion = clusterinfo.get("hadoopBuildVersion")
+        .toString();
+    assertTrue("hadoop Build version doesn't match: " + hadoopBuildVersion,
+        hadoopBuildVersion.matches(".*"));
+    String hadoopVersionBuiltOn = clusterinfo.get("hadoopVersionBuiltOn")
+        .toString();
+    assertTrue(
+        "hadoop version built on doesn't match: " + hadoopVersionBuiltOn,
+        hadoopVersionBuiltOn
+            .matches("^\\w+\\s+\\w+\\s+\\d+\\s+\\d\\d:\\d\\d:\\d\\d\\s+\\w+\\s+\\d\\d\\d\\d"));
+  }
+
+  @Test
+  public void testClusterMetrics() throws JSONException, Exception {
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("metrics")
+        .accept(MediaType.APPLICATION_JSON).get(JSONObject.class);
+    verifyClusterMetrics(json);
+  }
+
+  @Test
+  public void testClusterMetricsSlash() throws JSONException, Exception {
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("metrics/")
+        .accept(MediaType.APPLICATION_JSON).get(JSONObject.class);
+    verifyClusterMetrics(json);
+  }
+
+  public void verifyClusterMetrics(JSONObject json) throws JSONException,
+      Exception {
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject clusterinfo = json.getJSONObject("clusterMetrics");
+    assertEquals("correct number of elements", 11, clusterinfo.length());
+    assertEquals("appsSubmitted doesn't match", 0,
+        clusterinfo.getInt("appsSubmitted"));
+    assertEquals("reservedMB doesn't match", 0,
+        clusterinfo.getInt("reservedMB"));
+    assertEquals("availableMB doesn't match", 0,
+        clusterinfo.getInt("availableMB"));
+    assertEquals("allocatedMB doesn't match", 0,
+        clusterinfo.getInt("allocatedMB"));
+    assertEquals("containersAllocated doesn't match", 0,
+        clusterinfo.getInt("containersAllocated"));
+    assertEquals("totalMB doesn't match", 0, clusterinfo.getInt("totalMB"));
+    assertEquals("totalNodes doesn't match", 0,
+        clusterinfo.getInt("totalNodes"));
+    assertEquals("lostNodes doesn't match", 0, clusterinfo.getInt("lostNodes"));
+    assertEquals("unhealthyNodes doesn't match", 0,
+        clusterinfo.getInt("unhealthyNodes"));
+    assertEquals("decommissionedNodes doesn't match", 0,
+        clusterinfo.getInt("decommissionedNodes"));
+    assertEquals("rebootedNodes doesn't match", 0,
+        clusterinfo.getInt("rebootedNodes"));
+  }
+
+  @Test
+  public void testClusterSchedulerFifo() throws JSONException, Exception {
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("scheduler")
+        .accept(MediaType.APPLICATION_JSON).get(JSONObject.class);
+    verifyClusterSchedulerFifo(json);
+  }
+
+  @Test
+  public void testClusterSchedulerFifoSlash() throws JSONException, Exception {
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster")
+        .path("scheduler/").accept(MediaType.APPLICATION_JSON)
+        .get(JSONObject.class);
+    verifyClusterSchedulerFifo(json);
+  }
+
+  public void verifyClusterSchedulerFifo(JSONObject json) throws JSONException,
+      Exception {
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject info = json.getJSONObject("scheduler");
+    assertEquals("correct number of elements", 1, info.length());
+    info = info.getJSONObject("schedulerInfo");
+    assertEquals("correct number of elements", 11, info.length());
+    assertEquals("type doesn't match", "fifoScheduler", info.getString("type"));
+    assertEquals("qstate doesn't match", QueueState.RUNNING.toString(),
+        info.getString("qstate"));
+    assertEquals("capacity doesn't match", 1.0, info.getDouble("capacity"), 0.0);
+    assertEquals("usedCapacity doesn't match", Float.NaN,
+        info.getDouble("usedCapacity"), 0.0);
+    assertEquals("minQueueMemoryCapacity doesn't match", 1024,
+        info.getInt("minQueueMemoryCapacity"));
+    assertEquals("maxQueueMemoryCapacity doesn't match", 10240,
+        info.getInt("maxQueueMemoryCapacity"));
+    assertEquals("maxQueueMemoryCapacity doesn't match", 10240,
+        info.getInt("maxQueueMemoryCapacity"));
+
+  }
+
+  @Test
+  public void testNodes() throws JSONException, Exception {
+    testNodesHelper("nodes");
+  }
+
+  @Test
+  public void testNodesSlash() throws JSONException, Exception {
+    testNodesHelper("nodes/");
+  }
+
+  @Test
+  public void testNodesQueryState() throws JSONException, Exception {
+    WebResource r = resource();
+    MockNM nm1 = rm.registerNode("h1:1234", 5120);
+    MockNM nm2 = rm.registerNode("h2:1235", 5121);
+    rm.sendNodeStarted(nm1);
+    rm.NMwaitForState(nm1.getNodeId(), RMNodeState.RUNNING);
+    rm.NMwaitForState(nm2.getNodeId(), RMNodeState.NEW);
+
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("nodes")
+        .queryParam("state", RMNodeState.RUNNING.toString())
+        .accept("application/json").get(JSONObject.class);
+
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject nodes = json.getJSONObject("nodes");
+    assertEquals("correct number of elements", 1, nodes.length());
+    JSONArray nodeArray = nodes.getJSONArray("node");
+    assertEquals("correct number of elements", 1, nodeArray.length());
+    JSONObject info = nodeArray.getJSONObject(0);
+
+    verifyNodeInfo(info, nm1, RMNodeState.RUNNING);
+  }
+
+  @Test
+  public void testNodesQueryStateNone() throws JSONException, Exception {
+    WebResource r = resource();
+    rm.registerNode("h1:1234", 5120);
+    rm.registerNode("h2:1235", 5121);
+
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("nodes")
+        .queryParam("state", RMNodeState.DECOMMISSIONED.toString())
+        .accept("application/json").get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    assertEquals("nodes is not null", JSONObject.NULL, json.get("nodes"));
+  }
+
+  @Test
+  public void testNodesQueryStateInvalid() throws JSONException, Exception {
+    WebResource r = resource();
+    rm.registerNode("h1:1234", 5120);
+    rm.registerNode("h2:1235", 5121);
+
+    try {
+      r.path("ws").path("v1").path("cluster").path("nodes")
+          .queryParam("state", "BOGUSSTATE").accept("application/json")
+          .get(JSONObject.class);
+
+      fail("should have thrown exception querying invalid state");
+    } catch (UniformInterfaceException ue) {
+      ClientResponse response = ue.getResponse();
+
+      assertEquals(Status.BAD_REQUEST, response.getClientResponseStatus());
+      JSONObject msg = response.getEntity(JSONObject.class);
+      JSONObject exception = msg.getJSONObject("RemoteException");
+      assertEquals("correct number of elements", 3, exception.length());
+      String message = exception.getString("message");
+      String type = exception.getString("exception");
+      String classname = exception.getString("javaClassName");
+      checkStringMatch(
+          "exception message",
+          "No enum const class org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeState.BOGUSSTATE",
+          message);
+      checkStringMatch("exception type", "IllegalArgumentException", type);
+      checkStringMatch("exception classname",
+          "java.lang.IllegalArgumentException", classname);
+
+    } finally {
+      rm.stop();
+    }
+  }
+
+  @Test
+  public void testNodesQueryHealthy() throws JSONException, Exception {
+    WebResource r = resource();
+    MockNM nm1 = rm.registerNode("h1:1234", 5120);
+    MockNM nm2 = rm.registerNode("h2:1235", 5121);
+    rm.sendNodeStarted(nm1);
+    rm.NMwaitForState(nm1.getNodeId(), RMNodeState.RUNNING);
+    rm.NMwaitForState(nm2.getNodeId(), RMNodeState.NEW);
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("nodes")
+        .queryParam("healthy", "true").accept("application/json")
+        .get(JSONObject.class);
+
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject nodes = json.getJSONObject("nodes");
+    assertEquals("correct number of elements", 1, nodes.length());
+    JSONArray nodeArray = nodes.getJSONArray("node");
+    assertEquals("correct number of elements", 2, nodeArray.length());
+  }
+
+  @Test
+  public void testNodesQueryHealthyCase() throws JSONException, Exception {
+    WebResource r = resource();
+    MockNM nm1 = rm.registerNode("h1:1234", 5120);
+    MockNM nm2 = rm.registerNode("h2:1235", 5121);
+    rm.sendNodeStarted(nm1);
+    rm.NMwaitForState(nm1.getNodeId(), RMNodeState.RUNNING);
+    rm.NMwaitForState(nm2.getNodeId(), RMNodeState.NEW);
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("nodes")
+        .queryParam("healthy", "TRUe").accept("application/json")
+        .get(JSONObject.class);
+
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject nodes = json.getJSONObject("nodes");
+    assertEquals("correct number of elements", 1, nodes.length());
+    JSONArray nodeArray = nodes.getJSONArray("node");
+    assertEquals("correct number of elements", 2, nodeArray.length());
+
+  }
+
+  @Test
+  public void testNodesQueryHealthyAndState() throws JSONException, Exception {
+    WebResource r = resource();
+    MockNM nm1 = rm.registerNode("h1:1234", 5120);
+    MockNM nm2 = rm.registerNode("h2:1235", 5121);
+    rm.sendNodeStarted(nm1);
+    rm.NMwaitForState(nm2.getNodeId(), RMNodeState.NEW);
+    rm.NMwaitForState(nm1.getNodeId(), RMNodeState.RUNNING);
+    RMNodeImpl node = (RMNodeImpl) rm.getRMContext().getRMNodes()
+        .get(nm1.getNodeId());
+    NodeHealthStatus nodeHealth = node.getNodeHealthStatus();
+    nodeHealth.setHealthReport("test health report");
+    nodeHealth.setIsNodeHealthy(false);
+    node.handle(new RMNodeStatusEvent(nm1.getNodeId(), nodeHealth,
+        new ArrayList<ContainerStatus>(), null));
+    rm.NMwaitForState(nm1.getNodeId(), RMNodeState.UNHEALTHY);
+
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("nodes")
+        .queryParam("healthy", "true")
+        .queryParam("state", RMNodeState.RUNNING.toString())
+        .accept("application/json").get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    assertEquals("nodes is not null", JSONObject.NULL, json.get("nodes"));
+  }
+
+  @Test
+  public void testNodesQueryHealthyFalse() throws JSONException, Exception {
+    WebResource r = resource();
+    MockNM nm1 = rm.registerNode("h1:1234", 5120);
+    MockNM nm2 = rm.registerNode("h2:1235", 5121);
+    rm.sendNodeStarted(nm1);
+    rm.NMwaitForState(nm1.getNodeId(), RMNodeState.RUNNING);
+    rm.NMwaitForState(nm2.getNodeId(), RMNodeState.NEW);
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("nodes")
+        .queryParam("healthy", "false").accept("application/json")
+        .get(JSONObject.class);
+
+    assertEquals("correct number of elements", 1, json.length());
+    assertEquals("nodes is not null", JSONObject.NULL, json.get("nodes"));
+  }
+
+  @Test
+  public void testNodesQueryHealthyInvalid() throws JSONException, Exception {
+    WebResource r = resource();
+    rm.registerNode("h1:1234", 5120);
+    rm.registerNode("h2:1235", 5121);
+
+    try {
+      r.path("ws").path("v1").path("cluster").path("nodes")
+          .queryParam("healthy", "tr").accept("application/json")
+          .get(JSONObject.class);
+      fail("should have thrown exception querying invalid healthy string");
+    } catch (UniformInterfaceException ue) {
+      ClientResponse response = ue.getResponse();
+      assertEquals(Status.BAD_REQUEST, response.getClientResponseStatus());
+      JSONObject msg = response.getEntity(JSONObject.class);
+      JSONObject exception = msg.getJSONObject("RemoteException");
+      assertEquals("correct number of elements", 3, exception.length());
+      String message = exception.getString("message");
+      String type = exception.getString("exception");
+      String classname = exception.getString("javaClassName");
+      checkStringMatch(
+          "exception message",
+          "java.lang.Exception: Error: You must specify either true or false to query on health",
+          message);
+      checkStringMatch("exception type", "BadRequestException", type);
+      checkStringMatch("exception classname",
+          "org.apache.hadoop.yarn.webapp.BadRequestException", classname);
+
+    } finally {
+      rm.stop();
+    }
+  }
+
+  public void testNodesHelper(String path) throws JSONException, Exception {
+    WebResource r = resource();
+    MockNM nm1 = rm.registerNode("h1:1234", 5120);
+    MockNM nm2 = rm.registerNode("h2:1235", 5121);
+    JSONObject json = r.path("ws").path("v1").path("cluster").path(path)
+        .accept("application/json").get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject nodes = json.getJSONObject("nodes");
+    assertEquals("correct number of elements", 1, nodes.length());
+    JSONArray nodeArray = nodes.getJSONArray("node");
+    assertEquals("correct number of elements", 2, nodeArray.length());
+    JSONObject info = nodeArray.getJSONObject(0);
+    String id = info.get("id").toString();
+
+    if (id.matches("h1:1234")) {
+      verifyNodeInfo(info, nm1, RMNodeState.NEW);
+      verifyNodeInfo(nodeArray.getJSONObject(1), nm2, RMNodeState.NEW);
+    } else {
+      verifyNodeInfo(info, nm2, RMNodeState.NEW);
+      verifyNodeInfo(nodeArray.getJSONObject(1), nm1, RMNodeState.NEW);
+    }
+  }
+
+  @Test
+  public void testSingleNode() throws JSONException, Exception {
+    rm.registerNode("h1:1234", 5120);
+    MockNM nm2 = rm.registerNode("h2:1235", 5121);
+    testSingleNodeHelper("h2:1235", nm2);
+  }
+
+  @Test
+  public void testSingleNodeSlash() throws JSONException, Exception {
+    MockNM nm1 = rm.registerNode("h1:1234", 5120);
+    rm.registerNode("h2:1235", 5121);
+    testSingleNodeHelper("h1:1234/", nm1);
+  }
+
+  public void testSingleNodeHelper(String nodeid, MockNM nm)
+      throws JSONException, Exception {
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("nodes")
+        .path(nodeid).accept("application/json").get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject info = json.getJSONObject("node");
+    verifyNodeInfo(info, nm, RMNodeState.NEW);
+  }
+
+  @Test
+  public void testNonexistNode() throws JSONException, Exception {
+    rm.registerNode("h1:1234", 5120);
+    rm.registerNode("h2:1235", 5121);
+    WebResource r = resource();
+    try {
+      r.path("ws").path("v1").path("cluster").path("nodes")
+          .path("node_invalid:99").accept("application/json")
+          .get(JSONObject.class);
+
+      fail("should have thrown exception on non-existent nodeid");
+    } catch (UniformInterfaceException ue) {
+      ClientResponse response = ue.getResponse();
+      assertEquals(Status.NOT_FOUND, response.getClientResponseStatus());
+
+      JSONObject msg = response.getEntity(JSONObject.class);
+      JSONObject exception = msg.getJSONObject("RemoteException");
+      assertEquals("correct number of elements", 3, exception.length());
+      String message = exception.getString("message");
+      String type = exception.getString("exception");
+      String classname = exception.getString("javaClassName");
+      checkStringMatch("exception message",
+          "java.lang.Exception: nodeId, node_invalid:99, is not found", message);
+      checkStringMatch("exception type", "NotFoundException", type);
+      checkStringMatch("exception classname",
+          "org.apache.hadoop.yarn.webapp.NotFoundException", classname);
+
+    } finally {
+      rm.stop();
+    }
+  }
+
+  @Test
+  public void testInvalidNode() throws JSONException, Exception {
+    rm.registerNode("h1:1234", 5120);
+    rm.registerNode("h2:1235", 5121);
+
+    WebResource r = resource();
+    try {
+      r.path("ws").path("v1").path("cluster").path("nodes")
+          .path("node_invalid_foo").accept("application/json")
+          .get(JSONObject.class);
+
+      fail("should have thrown exception on non-existent nodeid");
+    } catch (UniformInterfaceException ue) {
+      ClientResponse response = ue.getResponse();
+
+      assertEquals(Status.BAD_REQUEST, response.getClientResponseStatus());
+      JSONObject msg = response.getEntity(JSONObject.class);
+      JSONObject exception = msg.getJSONObject("RemoteException");
+      assertEquals("correct number of elements", 3, exception.length());
+      String message = exception.getString("message");
+      String type = exception.getString("exception");
+      String classname = exception.getString("javaClassName");
+      checkStringMatch("exception message",
+          "Invalid NodeId \\[node_invalid_foo\\]. Expected host:port", message);
+      checkStringMatch("exception type", "IllegalArgumentException", type);
+      checkStringMatch("exception classname",
+          "java.lang.IllegalArgumentException", classname);
+    } finally {
+      rm.stop();
+    }
+  }
+
+  public void verifyNodeInfo(JSONObject nodeInfo, MockNM nm,
+      RMNodeState expectedState) throws JSONException, Exception {
+    assertEquals("correct number of elements", 11, nodeInfo.length());
+    String state = nodeInfo.get("state").toString();
+    assertTrue("stated doesn't match: " + state,
+        state.matches(expectedState.toString()));
+    String rack = nodeInfo.get("rack").toString();
+    assertTrue("rack doesn't match: " + rack, rack.matches("/default-rack"));
+    String healthStatus = nodeInfo.get("healthStatus").toString();
+    assertTrue("healthStatus doesn't match: " + healthStatus,
+        healthStatus.matches("Healthy"));
+    String id = nodeInfo.get("id").toString();
+    assertTrue("id doesn't match, got: " + id + " expected: "
+        + nm.getNodeId().toString(), id.matches(nm.getNodeId().toString()));
+    String nodeHostName = nodeInfo.get("nodeHostName").toString();
+    assertTrue("hostname doesn't match, got: " + nodeHostName + " expected: "
+        + nm.getNodeId().getHost(),
+        nodeHostName.matches(nm.getNodeId().getHost()));
+
+    String nodeHTTPAddress = nodeInfo.get("nodeHTTPAddress").toString();
+    String expectedHttpAddress = nm.getNodeId().getHost() + ":"
+        + nm.getHttpPort();
+    assertTrue("nodeHTTPAddress doesn't match, got: " + nodeHTTPAddress
+        + " expected: " + expectedHttpAddress,
+        nodeHTTPAddress.matches(expectedHttpAddress));
+    // could use this for other checks
+    RMNode node = rm.getRMContext().getRMNodes().get(nm.getNodeId());
+    long lastHealthUpdate = nodeInfo.getLong("lastHealthUpdate");
+    long expectedHealthUpdate = node.getNodeHealthStatus()
+        .getLastHealthReportTime();
+    assertEquals("lastHealthUpdate doesn't match, got: " + lastHealthUpdate
+        + " expected: " + expectedHealthUpdate, expectedHealthUpdate,
+        lastHealthUpdate);
+    String healthReport = nodeInfo.get("healthReport").toString();
+    assertTrue("healthReport doesn't match: " + healthReport,
+        healthReport.matches("Healthy"));
+
+    int numContainers = nodeInfo.getInt("numContainers");
+    assertEquals("numContainers doesn't match: " + numContainers, 0,
+        numContainers);
+
+    long usedMemoryMB = nodeInfo.getLong("usedMemoryMB");
+    assertEquals("usedMemoryMB doesn't match: " + usedMemoryMB, 0, usedMemoryMB);
+
+    long availMemoryMB = nodeInfo.getLong("availMemoryMB");
+    assertEquals("availMemoryMB doesn't match: " + availMemoryMB, 0,
+        availMemoryMB);
+  }
+
+  @Test
+  public void testApps() throws JSONException, Exception {
+    rm.start();
+    MockNM amNodeManager = rm.registerNode("amNM:1234", 2048);
+    RMApp app1 = rm.submitApp(1024);
+    amNodeManager.nodeHeartbeat(true);
+    testAppsHelper("apps", app1);
+    rm.stop();
+
+  }
+
+  @Test
+  public void testAppsSlash() throws JSONException, Exception {
+    rm.start();
+    MockNM amNodeManager = rm.registerNode("amNM:1234", 2048);
+    RMApp app1 = rm.submitApp(1024);
+    amNodeManager.nodeHeartbeat(true);
+    testAppsHelper("apps/", app1);
+    rm.stop();
+
+  }
+
+  public void testAppsHelper(String path, RMApp app) throws JSONException,
+      Exception {
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path(path)
+        .accept("application/json").get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject apps = json.getJSONObject("apps");
+    assertEquals("correct number of elements", 1, apps.length());
+    JSONArray array = apps.getJSONArray("app");
+    assertEquals("correct number of elements", 1, array.length());
+    verifyAppInfo(array.getJSONObject(0), app);
+
+  }
+
+  @Test
+  public void testAppsQueryState() throws JSONException, Exception {
+    rm.start();
+    MockNM amNodeManager = rm.registerNode("amNM:1234", 2048);
+    RMApp app1 = rm.submitApp(1024);
+    amNodeManager.nodeHeartbeat(true);
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("apps")
+        .queryParam("state", RMAppState.ACCEPTED.toString())
+        .accept("application/json").get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject apps = json.getJSONObject("apps");
+    assertEquals("correct number of elements", 1, apps.length());
+    JSONArray array = apps.getJSONArray("app");
+    assertEquals("correct number of elements", 1, array.length());
+    verifyAppInfo(array.getJSONObject(0), app1);
+    rm.stop();
+  }
+
+  @Test
+  public void testAppsQueryStateNone() throws JSONException, Exception {
+    rm.start();
+    MockNM amNodeManager = rm.registerNode("amNM:1234", 2048);
+    rm.submitApp(1024);
+    amNodeManager.nodeHeartbeat(true);
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("apps")
+        .queryParam("state", RMAppState.RUNNING.toString())
+        .accept("application/json").get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    assertEquals("apps is not null", JSONObject.NULL, json.get("apps"));
+    rm.stop();
+  }
+
+  @Test
+  public void testAppsQueryStateInvalid() throws JSONException, Exception {
+    rm.start();
+    MockNM amNodeManager = rm.registerNode("amNM:1234", 2048);
+    rm.submitApp(1024);
+    amNodeManager.nodeHeartbeat(true);
+    WebResource r = resource();
+
+    try {
+      r.path("ws").path("v1").path("cluster").path("apps")
+          .queryParam("state", "INVALID_test").accept("application/json")
+          .get(JSONObject.class);
+      fail("should have thrown exception on invalid state query");
+    } catch (UniformInterfaceException ue) {
+      ClientResponse response = ue.getResponse();
+
+      assertEquals(Status.BAD_REQUEST, response.getClientResponseStatus());
+      JSONObject msg = response.getEntity(JSONObject.class);
+      JSONObject exception = msg.getJSONObject("RemoteException");
+      assertEquals("correct number of elements", 3, exception.length());
+      String message = exception.getString("message");
+      String type = exception.getString("exception");
+      String classname = exception.getString("javaClassName");
+      checkStringMatch(
+          "exception message",
+          "No enum const class org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppState.INVALID_test",
+          message);
+      checkStringMatch("exception type", "IllegalArgumentException", type);
+      checkStringMatch("exception classname",
+          "java.lang.IllegalArgumentException", classname);
+
+    } finally {
+      rm.stop();
+    }
+  }
+
+  @Test
+  public void testAppsQueryUser() throws JSONException, Exception {
+    rm.start();
+    MockNM amNodeManager = rm.registerNode("amNM:1234", 2048);
+    rm.submitApp(1024);
+    rm.submitApp(1024);
+
+    amNodeManager.nodeHeartbeat(true);
+    WebResource r = resource();
+    JSONObject json = r
+        .path("ws")
+        .path("v1")
+        .path("cluster")
+        .path("apps")
+        .queryParam("user",
+            UserGroupInformation.getCurrentUser().getShortUserName())
+        .accept("application/json").get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject apps = json.getJSONObject("apps");
+    assertEquals("correct number of elements", 1, apps.length());
+    JSONArray array = apps.getJSONArray("app");
+    assertEquals("correct number of elements", 2, array.length());
+    rm.stop();
+  }
+
+  @Test
+  public void testAppsQueryQueue() throws JSONException, Exception {
+    rm.start();
+    MockNM amNodeManager = rm.registerNode("amNM:1234", 2048);
+    rm.submitApp(1024);
+    rm.submitApp(1024);
+
+    amNodeManager.nodeHeartbeat(true);
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("apps")
+        .queryParam("queue", "default").accept("application/json")
+        .get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject apps = json.getJSONObject("apps");
+    assertEquals("correct number of elements", 1, apps.length());
+    JSONArray array = apps.getJSONArray("app");
+    assertEquals("correct number of elements", 2, array.length());
+    rm.stop();
+  }
+
+  @Test
+  public void testAppsQueryLimit() throws JSONException, Exception {
+    rm.start();
+    rm.registerNode("amNM:1234", 2048);
+    rm.submitApp(1024);
+    rm.submitApp(1024);
+    rm.submitApp(1024);
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("apps")
+        .queryParam("limit", "2").accept("application/json")
+        .get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject apps = json.getJSONObject("apps");
+    assertEquals("correct number of elements", 1, apps.length());
+    JSONArray array = apps.getJSONArray("app");
+    assertEquals("correct number of elements", 2, array.length());
+    rm.stop();
+  }
+
+  @Test
+  public void testAppsQueryStartBegin() throws JSONException, Exception {
+    rm.start();
+    long start = System.currentTimeMillis();
+    Thread.sleep(1);
+    rm.registerNode("amNM:1234", 2048);
+    rm.submitApp(1024);
+    rm.submitApp(1024);
+    rm.submitApp(1024);
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("apps")
+        .queryParam("startedTimeBegin", String.valueOf(start))
+        .accept("application/json").get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject apps = json.getJSONObject("apps");
+    assertEquals("correct number of elements", 1, apps.length());
+    JSONArray array = apps.getJSONArray("app");
+    assertEquals("correct number of elements", 3, array.length());
+    rm.stop();
+  }
+
+  @Test
+  public void testAppsQueryStartBeginSome() throws JSONException, Exception {
+    rm.start();
+    rm.registerNode("amNM:1234", 2048);
+    rm.submitApp(1024);
+    rm.submitApp(1024);
+    long start = System.currentTimeMillis();
+    Thread.sleep(1);
+    rm.submitApp(1024);
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("apps")
+        .queryParam("startedTimeBegin", String.valueOf(start))
+        .accept("application/json").get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject apps = json.getJSONObject("apps");
+    assertEquals("correct number of elements", 1, apps.length());
+    JSONArray array = apps.getJSONArray("app");
+    assertEquals("correct number of elements", 1, array.length());
+    rm.stop();
+  }
+
+  @Test
+  public void testAppsQueryStartEnd() throws JSONException, Exception {
+    rm.start();
+    rm.registerNode("amNM:1234", 2048);
+    long end = System.currentTimeMillis();
+    Thread.sleep(1);
+    rm.submitApp(1024);
+    rm.submitApp(1024);
+    rm.submitApp(1024);
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("apps")
+        .queryParam("startedTimeEnd", String.valueOf(end))
+        .accept("application/json").get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    assertEquals("apps is not null", JSONObject.NULL, json.get("apps"));
+    rm.stop();
+  }
+
+  @Test
+  public void testAppsQueryStartBeginEnd() throws JSONException, Exception {
+    rm.start();
+    rm.registerNode("amNM:1234", 2048);
+    long start = System.currentTimeMillis();
+    Thread.sleep(1);
+    rm.submitApp(1024);
+    rm.submitApp(1024);
+    long end = System.currentTimeMillis();
+    Thread.sleep(1);
+    rm.submitApp(1024);
+
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("apps")
+        .queryParam("startedTimeBegin", String.valueOf(start))
+        .queryParam("startedTimeEnd", String.valueOf(end))
+        .accept("application/json").get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject apps = json.getJSONObject("apps");
+    assertEquals("correct number of elements", 1, apps.length());
+    JSONArray array = apps.getJSONArray("app");
+    assertEquals("correct number of elements", 2, array.length());
+    rm.stop();
+  }
+
+  @Test
+  public void testAppsQueryFinishBegin() throws JSONException, Exception {
+    rm.start();
+    MockNM amNodeManager = rm.registerNode("amNM:1234", 2048);
+    long start = System.currentTimeMillis();
+    Thread.sleep(1);
+    RMApp app1 = rm.submitApp(1024);
+    amNodeManager.nodeHeartbeat(true);
+    // finish App
+    MockAM am = rm
+        .sendAMLaunched(app1.getCurrentAppAttempt().getAppAttemptId());
+    am.registerAppAttempt();
+    am.unregisterAppAttempt();
+    rm.submitApp(1024);
+    rm.submitApp(1024);
+
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("apps")
+        .queryParam("finishedTimeBegin", String.valueOf(start))
+        .accept("application/json").get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject apps = json.getJSONObject("apps");
+    assertEquals("correct number of elements", 1, apps.length());
+    JSONArray array = apps.getJSONArray("app");
+    assertEquals("correct number of elements", 1, array.length());
+    rm.stop();
+  }
+
+  @Test
+  public void testAppsQueryFinishEnd() throws JSONException, Exception {
+    rm.start();
+    MockNM amNodeManager = rm.registerNode("amNM:1234", 2048);
+    RMApp app1 = rm.submitApp(1024);
+    amNodeManager.nodeHeartbeat(true);
+    // finish App
+    MockAM am = rm
+        .sendAMLaunched(app1.getCurrentAppAttempt().getAppAttemptId());
+    am.registerAppAttempt();
+    am.unregisterAppAttempt();
+
+    rm.submitApp(1024);
+    rm.submitApp(1024);
+    long end = System.currentTimeMillis();
+
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("apps")
+        .queryParam("finishedTimeEnd", String.valueOf(end))
+        .accept("application/json").get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject apps = json.getJSONObject("apps");
+    assertEquals("correct number of elements", 1, apps.length());
+    JSONArray array = apps.getJSONArray("app");
+    assertEquals("correct number of elements", 3, array.length());
+    rm.stop();
+  }
+
+  @Test
+  public void testAppsQueryFinishBeginEnd() throws JSONException, Exception {
+    rm.start();
+    MockNM amNodeManager = rm.registerNode("amNM:1234", 2048);
+    long start = System.currentTimeMillis();
+    Thread.sleep(1);
+    RMApp app1 = rm.submitApp(1024);
+    amNodeManager.nodeHeartbeat(true);
+    // finish App
+    MockAM am = rm
+        .sendAMLaunched(app1.getCurrentAppAttempt().getAppAttemptId());
+    am.registerAppAttempt();
+    am.unregisterAppAttempt();
+
+    rm.submitApp(1024);
+    rm.submitApp(1024);
+    long end = System.currentTimeMillis();
+
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("apps")
+        .queryParam("finishedTimeBegin", String.valueOf(start))
+        .queryParam("finishedTimeEnd", String.valueOf(end))
+        .accept("application/json").get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    JSONObject apps = json.getJSONObject("apps");
+    assertEquals("correct number of elements", 1, apps.length());
+    JSONArray array = apps.getJSONArray("app");
+    assertEquals("correct number of elements", 1, array.length());
+    rm.stop();
+  }
+
+  @Test
+  public void testSingleApp() throws JSONException, Exception {
+    rm.start();
+    MockNM amNodeManager = rm.registerNode("amNM:1234", 2048);
+    RMApp app1 = rm.submitApp(1024);
+    amNodeManager.nodeHeartbeat(true);
+    testSingleAppsHelper(app1.getApplicationId().toString(), app1);
+    rm.stop();
+  }
+
+  @Test
+  public void testSingleAppsSlash() throws JSONException, Exception {
+    rm.start();
+    MockNM amNodeManager = rm.registerNode("amNM:1234", 2048);
+    RMApp app1 = rm.submitApp(1024);
+    amNodeManager.nodeHeartbeat(true);
+    testSingleAppsHelper(app1.getApplicationId().toString() + "/", app1);
+    rm.stop();
+  }
+
+  @Test
+  public void testInvalidApp() throws JSONException, Exception {
+    rm.start();
+    MockNM amNodeManager = rm.registerNode("amNM:1234", 2048);
+    rm.submitApp(1024);
+    amNodeManager.nodeHeartbeat(true);
+    WebResource r = resource();
+
+    try {
+      r.path("ws").path("v1").path("cluster").path("apps")
+          .path("application_invalid_12").accept("application/json")
+          .get(JSONObject.class);
+      fail("should have thrown exception on invalid appid");
+    } catch (UniformInterfaceException ue) {
+      ClientResponse response = ue.getResponse();
+
+      assertEquals(Status.BAD_REQUEST, response.getClientResponseStatus());
+      JSONObject msg = response.getEntity(JSONObject.class);
+      JSONObject exception = msg.getJSONObject("RemoteException");
+      assertEquals("correct number of elements", 3, exception.length());
+      String message = exception.getString("message");
+      String type = exception.getString("exception");
+      String classname = exception.getString("javaClassName");
+      checkStringMatch("exception message", "For input string: \"invalid\"",
+          message);
+      checkStringMatch("exception type", "NumberFormatException", type);
+      checkStringMatch("exception classname",
+          "java.lang.NumberFormatException", classname);
+
+    } finally {
+      rm.stop();
+    }
+  }
+
+  @Test
+  public void testNonexistApp() throws JSONException, Exception {
+    rm.start();
+    MockNM amNodeManager = rm.registerNode("amNM:1234", 2048);
+    rm.submitApp(1024);
+    amNodeManager.nodeHeartbeat(true);
+    WebResource r = resource();
+
+    try {
+      r.path("ws").path("v1").path("cluster").path("apps")
+          .path("application_00000_0099").accept("application/json")
+          .get(JSONObject.class);
+      fail("should have thrown exception on invalid appid");
+    } catch (UniformInterfaceException ue) {
+      ClientResponse response = ue.getResponse();
+
+      assertEquals(Status.NOT_FOUND, response.getClientResponseStatus());
+      JSONObject msg = response.getEntity(JSONObject.class);
+      JSONObject exception = msg.getJSONObject("RemoteException");
+      assertEquals("correct number of elements", 3, exception.length());
+      String message = exception.getString("message");
+      String type = exception.getString("exception");
+      String classname = exception.getString("javaClassName");
+      checkStringMatch("exception message",
+          "java.lang.Exception: app with id: application_00000_0099 not found",
+          message);
+      checkStringMatch("exception type", "NotFoundException", type);
+      checkStringMatch("exception classname",
+          "org.apache.hadoop.yarn.webapp.NotFoundException", classname);
+    } finally {
+      rm.stop();
+    }
+  }
+
+  public void testSingleAppsHelper(String path, RMApp app)
+      throws JSONException, Exception {
+    WebResource r = resource();
+    JSONObject json = r.path("ws").path("v1").path("cluster").path("apps")
+        .path(path).accept("application/json").get(JSONObject.class);
+    assertEquals("correct number of elements", 1, json.length());
+    verifyAppInfo(json.getJSONObject("app"), app);
+  }
+
+  public void verifyAppInfo(JSONObject info, RMApp app) throws JSONException,
+      Exception {
+
+    // 15 because trackingUrl not assigned yet
+    assertEquals("correct number of elements", 15, info.length());
+    String id = info.getString("id");
+    String expectedId = app.getApplicationId().toString();
+    checkStringMatch("id", expectedId, id);
+
+    String user = info.getString("user");
+    String expectedUser = app.getUser();
+    checkStringMatch("user", expectedUser, user);
+
+    checkStringMatch("name", "", info.getString("name"));
+    checkStringMatch("queue", "default", info.getString("queue"));
+    checkStringMatch("state", RMAppState.ACCEPTED.toString(),
+        info.getString("state"));
+    checkStringMatch("finalStatus",
+        FinalApplicationStatus.UNDEFINED.toString(),
+        info.getString("finalStatus"));
+    assertEquals("progress doesn't match", 0, info.getDouble("progress"), 0.0);
+    checkStringMatch("trackingUI", "UNASSIGNED", info.getString("trackingUI"));
+    checkStringMatch("diagnostics", "", info.getString("diagnostics"));
+    assertEquals("clusterId doesn't match", ResourceManager.clusterTimeStamp,
+        info.getLong("clusterId"));
+    assertEquals("startedTime doesn't match", app.getStartTime(),
+        info.getLong("startedTime"));
+    assertEquals("finishedTime doesn't match", app.getFinishTime(),
+        info.getLong("finishedTime"));
+    assertTrue("elapsed time not greater than 0",
+        info.getLong("elapsedTime") > 0);
+    checkStringMatch("amHostHttpAddress", app.getCurrentAppAttempt()
+        .getMasterContainer().getNodeHttpAddress(),
+        info.getString("amHostHttpAddress"));
+    assertTrue("amContainerLogs doesn't match",
+        info.getString("amContainerLogs").startsWith("http://"));
+  }
+
+  private void checkStringMatch(String print, String expected, String got) {
+    assertTrue(
+        print + " doesn't match, got: " + got + " expected: " + expected,
+        got.matches(expected));
+  }
+
+}

hadoop-mapreduce-project/hadoop-yarn/pom.xml

@@ -168,7 +168,7 @@
     <dependency>
       <groupId>com.google.inject.extensions</groupId>
       <artifactId>guice-servlet</artifactId>
-      <version>2.0</version>
+      <version>3.0</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>
@@ -289,9 +289,30 @@
       <scope>runtime</scope>
     </dependency>
     <dependency>
-      <groupId>com.google.inject.extensions</groupId>
-      <artifactId>guice-servlet</artifactId>
-      <version>2.0</version>
+      <groupId>com.google.inject</groupId>
+      <artifactId>guice</artifactId>
+      <version>3.0</version>
+    </dependency>
+    <dependency>
+      <groupId>com.sun.jersey.jersey-test-framework</groupId>
+      <artifactId>jersey-test-framework-core</artifactId>
+      <version>1.8</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.sun.jersey.jersey-test-framework</groupId>
+      <artifactId>jersey-test-framework-grizzly2</artifactId>
+      <version>1.8</version>
+    </dependency>
+    <dependency>
+      <groupId>com.sun.jersey</groupId>
+      <artifactId>jersey-server</artifactId>
+      <version>1.8</version>
+    </dependency>
+    <dependency>
+      <groupId>com.sun.jersey.contribs</groupId>
+      <artifactId>jersey-guice</artifactId>
+      <version>1.8</version>
     </dependency>
     <dependency>
       <groupId>org.jboss.netty</groupId>

hadoop-mapreduce-project/pom.xml

@@ -142,10 +142,25 @@
       <artifactId>hadoop-hdfs</artifactId>
       <version>${project.version}</version>
     </dependency>
+    <dependency>
+      <groupId>com.google.inject</groupId>
+      <artifactId>guice</artifactId>
+      <version>3.0</version>
+    </dependency>
+    <dependency>
+      <groupId>com.sun.jersey</groupId>
+      <artifactId>jersey-server</artifactId>
+      <version>1.8</version>
+    </dependency>
+    <dependency>
+      <groupId>com.sun.jersey.contribs</groupId>
+      <artifactId>jersey-guice</artifactId>
+      <version>1.8</version>
+    </dependency> 
     <dependency>
       <groupId>com.google.inject.extensions</groupId>
       <artifactId>guice-servlet</artifactId>
-      <version>2.0</version>
+      <version>3.0</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>