ambari/ambari-web/app/views/main/admin/rollbackHA/step1_view.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.RollbackHighAvailabilityWizardStep1View = Em.View.extend({

  templateName: require('templates/main/admin/rollbackHA/step1'),

  addNNHosts: null,
  sNNHosts: null,
  selectedSNNHost: null,
  selectedAddNNHost: null,

  didInsertElement: function() {
    var addNNHosts = App.HostComponent.find().filterProperty('componentName','NAMENODE');
    this.secondaryNNHosts = [];

    this.set('selectedSNNHost', this.get('controller.content.sNNHost'));
    this.set('selectedAddNNHost', this.get('controller.content.addNNHost'));

    if(addNNHosts.length == 2){
      this.set('addNNHosts', addNNHosts.mapProperty('host.hostName'));
    }
    App.Host.find().forEach(function(host){
      this.secondaryNNHosts.push(host.get('id'));
    },this);
    this.set('sNNHosts', this.secondaryNNHosts);
  },

  tipAddNNHost: function () {
    return this.get('controller.content.addNNHost');
  }.property('controller.content.addNNHost'),

  tipSNNHost: function () {
    return this.get('controller.content.sNNHost');
  }.property('controller.content.sNNHost'),

  done: function () {
    this.get('controller.content').set('selectedSNNHost', this.get('selectedSNNHost'));
    this.get('controller.content').set('selectedAddNNHost', this.get('selectedAddNNHost'));
    App.router.send('next');
  }

});