ambari/ambari-web/app/views/main/dashboard/service.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');

require('models/alert');

App.MainDashboardServiceHealthView = Em.View.extend({
  classNameBindings: ["healthStatus"],
  template: Em.Handlebars.compile(""),
  blink: false,
  tagName: 'span',
  
  /**
   * When set to true, extending classes should
   * show only tabular rows as they will be 
   * embedded into other tables.
   */
  showOnlyRows: false,

  startBlink: function () {
    this.set('blink', true);
  },

  doBlink: function () {
    if (this.get('blink') && (this.get("state") == "inDOM")) {
      this.$().effect("pulsate", { times: 1 }, "slow", function () {
        var view = Em.View.views[$(this).attr('id')];
        view.doBlink();
      });
    }
  }.observes('blink'),

  stopBlink: function () {
    this.set('blink', false);
  },

  healthStatus: function () {
    var status = this.get('service.healthStatus');
    switch (status) {
      case 'green':
        status = App.Service.Health.live;
        this.stopBlink();
        break;
      case 'green-blinking':
        status = App.Service.Health.live;
        this.startBlink();
        break;
      case 'red-blinking':
        status = App.Service.Health.dead;
        this.startBlink();
        break;
      default:
        status = App.Service.Health.dead;
        this.stopBlink();
        break;
    }

    return 'health-status-' + status + " span";
  }.property('service.healthStatus'),

  didInsertElement: function () {
    this.doBlink(); // check for blink availability
  }
});

App.MainDashboardServiceView = Em.View.extend({
  classNames: ['service', 'clearfix'],

  data: function () {
    return this.get('controller.data.' + this.get('serviceName'));
  }.property('controller.data'),

  criticalAlertsCount: function () {
    var alerts = App.router.get('clusterController.alerts');
    return alerts.filterProperty('serviceType', this.get('service.id')).filterProperty('status', '1').length;
  }.property('service.alerts')

});