YARN-7392. Render cluster information on new YARN web ui. Contributed by Vasudevan Skm.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/app/helpers/date-formatter.js

@@ -0,0 +1,29 @@
+/**
+ * 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.
+ */
+
+import Ember from 'ember';
+
+import Converter from 'yarn-ui/utils/converter';
+
+export function dateFormatter(params) {
+  const [timestamp, dateOnly] = params;
+
+  return dateOnly ? Converter.timeStampToDateOnly(timestamp) : Converter.timeStampToDate(timestamp);
+}
+
+export default Ember.Helper.helper(dateFormatter);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/app/helpers/lower.js

@@ -0,0 +1,27 @@
+/**
+ * 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.
+ */
+
+
+import Ember from 'ember';
+
+export function lower(params) {
+  const string = params[0];
+  return string.toLowerCase();
+}
+
+export default Ember.Helper.helper(lower);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/app/initializers/jquery.js

@@ -0,0 +1,35 @@
+/**
+ * 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.
+ */
+
+import Ember from 'ember';
+
+export function initialize(/* application */) {
+  Ember.$(document).tooltip({
+    tooltipClass: 'generic-tooltip',
+    selector: ".yarn-tooltip"
+  });
+
+  Ember.$.ajaxSetup({
+    cache: false
+  });
+}
+
+export default {
+  name: 'jquery',
+  initialize
+};

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/app/models/cluster-info.js

@@ -27,5 +27,8 @@ export default DS.Model.extend({
   resourceManagerBuildVersion: DS.attr('string'),
   hadoopVersion: DS.attr('string'),
   hadoopBuildVersion: DS.attr('string'),
-  hadoopVersionBuiltOn: DS.attr('string')
-});
+  hadoopVersionBuiltOn: DS.attr('string'),
+  getYARNBuildHash: function() {
+	return this.get("hadoopVersion") + " from " +  this.get("resourceManagerBuildVersion").split(" ")[2];
+  }.property("yarnHash")
+});

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/app/routes/application.js

@@ -17,8 +17,13 @@
  */
 
 import Ember from 'ember';
+import AbstractRoute from './abstract';
+
+export default AbstractRoute.extend({
+  model() {
+    return this.store.findAll('ClusterInfo', {reload: true});
+  },
 
-export default Ember.Route.extend({
   actions: {
     /**
      * Base error handler for the application.
@@ -35,5 +40,9 @@ export default Ember.Route.extend({
         this.intermediateTransitionTo('/error');
       }
     }
-  }
+  },
+
+  unloadAll: function() {
+    this.store.unloadAll('ClusterInfo');
+  },
 });

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/app/styles/app.css

@@ -418,3 +418,39 @@ div.attempt-info-panel table > tbody > tr > td:last-of-type {
   width: 14px;
   display: inline-block;
 }
+
+.yarn-cluster-status i {
+  display: inline-block;
+  width: 12px;
+  height: 12px;
+  border-radius: 10px;
+  border: 1px solid;
+  margin: 3px;
+  vertical-align: bottom;
+}
+
+.yarn-cluster-status i.started {
+  border-color: #43b135;
+  background-color: #60cea5;
+}
+.yarn-cluster-status i.stopped {
+  border-color: #b04b4e;
+  background-color: #ef6162;
+}
+.yarn-cluster-status i.inited{
+  border-color: #1c95c0;
+  background-color: #26bbf0;
+}
+.yarn-cluster-status i.notinited {
+    border-color: #dca41b;
+    background-color: #ffbc0b;
+}
+.yarn-cluster-info {
+  display: flex;
+  margin-left: auto
+}
+
+.yarn-ui-footer {
+  display: flex;
+  padding: 10px 25px;
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/app/templates/application.hbs

@@ -80,8 +80,8 @@
   <br/>
 </div>
 
-<div class="footer">
-  <div class="container-fluid content">
+<div class="footer yarn-ui-footer">
+  <div>
     <a href={{env.app.hrefs.license}} target="_blank">
       Licensed under the Apache License, Version 2.0.
     </a>
@@ -91,4 +91,13 @@
       {{/if}}
     </div>
   </div>
+  <div class="yarn-cluster-info">
+    <div>
+      <strong>v{{model.firstObject.hadoopVersion}}</strong>
+      <span class="yarn-cluster-status yarn-tooltip" title="Hadoop Version: {{model.firstObject.getYARNBuildHash}} &#10;Started on: {{date-formatter model.firstObject.startedOn}}" data-toggle="tooltip" data-placement="top">
+        <i class={{lower model.firstObject.state}} />
+      </span>
+      <div>Started at {{date-formatter model.firstObject.startedOn}}</div>
+    </div>
+  </div>
 </div>

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/tests/unit/helpers/date-formatter-test.js

@@ -0,0 +1,28 @@
+/**
+ * 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.
+ */
+
+import { dateFormatter } from '../../../helpers/date-formatter';
+import { module, test } from 'qunit';
+
+module('Unit | Helper | date formatter');
+
+// Replace this with your real tests.
+test('it works', function(assert) {
+  let result = dateFormatter(42);
+  assert.ok(result);
+});

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/tests/unit/helpers/lower-test.js

@@ -0,0 +1,28 @@
+/**
+ * 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.
+ */
+
+import { lower } from '../../../helpers/lower';
+import { module, test } from 'qunit';
+
+module('Unit | Helper | lower');
+
+// Replace this with your real tests.
+test('it works', function(assert) {
+  let result = lower(42);
+  assert.ok(result);
+});

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/yarn.lock

@@ -1730,6 +1730,14 @@ ember-export-application-global@1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/ember-export-application-global/-/ember-export-application-global-1.0.5.tgz#73bd641b19e3474190f717c9b504617511506bea"
 
+ember-lodash@0.0.10:
+  version "0.0.10"
+  resolved "https://registry.yarnpkg.com/ember-lodash/-/ember-lodash-0.0.10.tgz#edf132aa54a983a87543a093615df03892c9a15c"
+  dependencies:
+    broccoli-merge-trees "^1.1.1"
+    ember-cli-babel "^5.1.5"
+    lodash-es "^3.10.0"
+
 ember-qunit@^0.4.18:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/ember-qunit/-/ember-qunit-0.4.24.tgz#b54cf6688c442d07eacea47c3285879cdd7c2163"
@@ -2945,6 +2953,10 @@ lockfile@~1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/lockfile/-/lockfile-1.0.3.tgz#2638fc39a0331e9cac1a04b71799931c9c50df79"
 
+lodash-es@^3.10.0:
+  version "3.10.1"
+  resolved "https://registry.yarnpkg.com/lodash-es/-/lodash-es-3.10.1.tgz#a1c85d9829c9009004339dc3846dbabb46cf4e19"
+
 lodash-node@^2.4.1:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/lodash-node/-/lodash-node-2.4.1.tgz#ea82f7b100c733d1a42af76801e506105e2a80ec"