ambari/ambari-web/app/controllers/main/dashboard.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');

App.MainDashboardController = Em.Controller.extend({
  name:'mainDashboardController',
  alerts: function(){
    return App.router.get('clusterController.alerts');
  }.property('App.router.clusterController.alerts'),

  alertsFilteredByName: 'All',
  alertsFilteredByType: 'All',
  alertsFilter: function(event) {
    if (event.context && event.context.model && event.context.model.get('serviceName')){
      this.set('alertsFilteredByName', event.context.model.get('displayName'));
      this.set('alertsFilteredByType', event.context.model.get('serviceName'));
    } else {
      this.set('alertsFilteredByName', 'All');
      this.set('alertsFilteredByType', 'All');
    }
  },
  /**
   * We do not want to re-get all the data everytime the filter
   * is changed. Hence we just filtered the alerts got during page
   * load.
   */
  displayAlerts: function(){
    if(this.get('alertsFilteredByType')=='All')
      return this.get('alerts');
    else
      var type = this.get('alertsFilteredByType').toLowerCase();
      return this.get('alerts').filter(function(item){
        var serviceType = item.get('serviceType');
        return serviceType && serviceType.toLowerCase()==type.toLowerCase();
      });
  }.property('alerts', 'alertsFilteredByType'),
  
  nagiosUrl: function(){
    return App.router.get('clusterController.nagiosUrl');
  }.property('App.router.clusterController.nagiosUrl'),
  
  isNagiosInstalled: function(){
    return App.router.get('clusterController.isNagiosInstalled');
  }.property('App.router.clusterController.isNagiosInstalled'),
  
  alertsCount: function() {
    var alerts = this.get('alerts');
    return alerts ? alerts.filterProperty('status', 'corrupt').length : 0;
  }.property('alerts')
});