HADOOP-9845. Update protobuf to 2.5 from 2.4.x. (tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1514071 13f79535-47bb-0310-9956-ffa450edef68

hadoop-common-project/hadoop-common/pom.xml

@@ -308,6 +308,7 @@
               <goal>protoc</goal>
             </goals>
             <configuration>
+              <protocVersion>${protobuf.version}</protocVersion>
               <imports>
                 <param>${basedir}/src/main/proto</param>
               </imports>
@@ -336,6 +337,7 @@
               <goal>protoc</goal>
             </goals>
             <configuration>
+              <protocVersion>${protobuf.version}</protocVersion>
               <imports>
                 <param>${basedir}/src/test/proto</param>
               </imports>

hadoop-hdfs-project/hadoop-hdfs/pom.xml

@@ -412,6 +412,7 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
               <goal>protoc</goal>
             </goals>
             <configuration>
+              <protocVersion>2.5.0</protocVersion>
               <imports>
                 <param>${basedir}/../../hadoop-common-project/hadoop-common/src/main/proto</param>
                 <param>${basedir}/src/main/proto</param>
@@ -436,6 +437,7 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
               <goal>protoc</goal>
             </goals>
             <configuration>
+              <protocVersion>2.5.0</protocVersion>
               <imports>
                 <param>${basedir}/../../hadoop-common-project/hadoop-common/src/main/proto</param>
                 <param>${basedir}/src/main/proto</param>
@@ -457,6 +459,7 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
               <goal>protoc</goal>
             </goals>
             <configuration>
+              <protocVersion>2.5.0</protocVersion>
               <imports>
                 <param>${basedir}/../../hadoop-common-project/hadoop-common/src/main/proto</param>
                 <param>${basedir}/src/main/proto</param>
@@ -478,6 +481,7 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
               <goal>protoc</goal>
             </goals>
             <configuration>
+              <protocVersion>2.5.0</protocVersion>
               <imports>
                 <param>${basedir}/../../hadoop-common-project/hadoop-common/src/main/proto</param>
                 <param>${basedir}/src/main/proto</param>

hadoop-hdfs-project/hadoop-hdfs/src/contrib/bkjournal/pom.xml

@@ -103,6 +103,7 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
               <goal>protoc</goal>
             </goals>
             <configuration>
+              <protocVersion>2.5.0</protocVersion>
               <imports>
                 <param>${basedir}/../../../../../hadoop-common-project/hadoop-common/src/main/proto</param>
                 <param>${basedir}/../../../../../hadoop-hdfs-project/hadoop-hdfs/src/main/proto</param>

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

@@ -64,6 +64,7 @@
               <goal>protoc</goal>
             </goals>
             <configuration>
+              <protocVersion>2.5.0</protocVersion>
               <imports>
                 <param>${basedir}/../../../hadoop-common-project/hadoop-common/src/main/proto</param>
                 <param>${basedir}/../../../hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/proto</param>

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

@@ -78,6 +78,7 @@
 				<goal>protoc</goal>
 				</goals>
 				<configuration>
+                                  <protocVersion>2.5.0</protocVersion>
 				<imports>
 					<param>
 						${basedir}/../../../../hadoop-common-project/hadoop-common/src/main/proto

hadoop-maven-plugins/src/main/java/org/apache/hadoop/maven/plugin/protoc/ProtocMojo.java

@@ -48,16 +48,41 @@ public class ProtocMojo extends AbstractMojo {
   @Parameter(defaultValue="protoc")
   private String protocCommand;
 
+  @Parameter(required=true)
+  private String protocVersion;
 
   public void execute() throws MojoExecutionException {
     try {
+      List<String> command = new ArrayList<String>();
+      command.add(protocCommand);
+      command.add("--version");
+      Exec exec = new Exec(this);
+      List<String> out = new ArrayList<String>();
+      if (exec.run(command, out) != 0) {
+        getLog().error("protoc, could not get version");
+        for (String s : out) {
+          getLog().error(s);
+        }
+        throw new MojoExecutionException("protoc failure");        
+      } else {
+        if (out.size() == 0) {
+          throw new MojoExecutionException(
+              "'protoc -version' did not return a version");
+        } else {
+          if (!out.get(0).endsWith(protocVersion)) {
+            throw new MojoExecutionException(
+                "protoc version is '" + out.get(0) + "', expected version is '" 
+                    + protocVersion + "'");            
+          }
+        }
+      }
       if (!output.mkdirs()) {
         if (!output.exists()) {
           throw new MojoExecutionException("Could not create directory: " + 
             output);
         }
       }
-      List<String> command = new ArrayList<String>();
+      command = new ArrayList<String>();
       command.add(protocCommand);
       command.add("--java_out=" + output.getCanonicalPath());
       if (imports != null) {
@@ -68,8 +93,8 @@ public class ProtocMojo extends AbstractMojo {
       for (File f : FileSetUtils.convertFileSetToFiles(source)) {
         command.add(f.getCanonicalPath());
       }
-      Exec exec = new Exec(this);
-      List<String> out = new ArrayList<String>();
+      exec = new Exec(this);
+      out = new ArrayList<String>();
       if (exec.run(command, out) != 0) {
         getLog().error("protoc compiler error");
         for (String s : out) {

hadoop-project/pom.xml

@@ -58,6 +58,10 @@
     <!-- at different nesting levels in the source tree may need to override. -->
     <hadoop.common.build.dir>${basedir}/../../hadoop-common-project/hadoop-common/target</hadoop.common.build.dir>
     <java.security.egd>file:///dev/urandom</java.security.egd>
+
+    <!-- ProtocolBuffer version, used to verify the protoc version and -->
+    <!-- define the protobuf JAR version                               -->
+    <protobuf.version>2.5.0</protobuf.version>
   </properties>
 
   <dependencyManagement>
@@ -614,7 +618,7 @@
       <dependency>
         <groupId>com.google.protobuf</groupId>
         <artifactId>protobuf-java</artifactId>
-        <version>2.4.0a</version>
+        <version>${protobuf.version}</version>
       </dependency>
       <dependency>
         <groupId>commons-daemon</groupId>

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

@@ -45,6 +45,7 @@
               <goal>protoc</goal>
             </goals>
             <configuration>
+              <protocVersion>2.5.0</protocVersion>
               <imports>
                 <param>${basedir}/../../../hadoop-common-project/hadoop-common/src/main/proto</param>
                 <param>${basedir}/src/main/proto</param>

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/pom.xml

@@ -73,6 +73,7 @@
               <goal>protoc</goal>
             </goals>
             <configuration>
+              <protocVersion>2.5.0</protocVersion>
               <imports>
                 <param>${basedir}/../../../../hadoop-common-project/hadoop-common/src/main/proto</param>
                 <param>${basedir}/../../hadoop-yarn-api/src/main/proto</param>

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/pom.xml

@@ -165,6 +165,7 @@
               <goal>protoc</goal>
             </goals>
             <configuration>
+              <protocVersion>2.5.0</protocVersion>
               <imports>
                 <param>${basedir}/../../../../hadoop-common-project/hadoop-common/src/main/proto</param>
                 <param>${basedir}/../../hadoop-yarn-api/src/main/proto</param>