ambari/ambari-web/app/views/main/dashboard/cluster_metrics/load.js

/**
 * 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.
 */

var App = require('app');

/**
 * @class
 * 
 * This is a view for showing cluster load
 * 
 * @extends App.ChartLinearTimeView
 * @extends Ember.Object
 * @extends Ember.View
 */
App.ChartClusterMetricsLoad = App.ChartLinearTimeView.extend({
  id: "cluster-metrics-load",
  url: "/data/cluster_metrics/load_1hr.json",
  url: function () {
    return App.formatUrl(App.apiPrefix + "/clusters/{clusterName}?fields=metrics/load[{fromSeconds},{toSeconds},{stepSeconds}]", {
      clusterName: App.router.get('clusterController.clusterName')
    }, "/data/cluster_metrics/load_1hr.json");
  }.property('App.router.clusterController.clusterName'),
  renderer: 'line',
  title: "Cluster Load",
  
  transformToSeries: function(jsonData){
    var seriesArray = [];
    if (jsonData && jsonData.metrics && jsonData.metrics.load) {
      for ( var name in jsonData.metrics.load) {
        var displayName = name;
        var seriesData = jsonData.metrics.load[name];
        if (seriesData) {
          // Is it a string?
          if ("string" == typeof seriesData) {
            seriesData = JSON.parse(seriesData);
          }
          // We have valid data
          var series = {};
          series.name = displayName;
          series.data = [];
          for ( var index = 0; index < seriesData.length; index++) {
            series.data.push({
              x: seriesData[index][1],
              y: seriesData[index][0]
            });
          }
          seriesArray.push(series);
        }
      }
    }
    return seriesArray;
  }
});