ambari/ambari-web/app/views/main/admin/highAvailability/nameNode/wizard_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.HighAvailabilityWizardView = Em.View.extend(App.WizardMenuMixin, {

  templateName: require('templates/main/admin/highAvailability/nameNode/wizard'),

  isLoaded: false,

  willInsertElement: function() {
    this.set('isLoaded', false);
    this.loadHosts();
  },

  /**
   * load hosts from server
   */
  loadHosts: function () {
    App.ajax.send({
      name: 'hosts.high_availability.wizard',
      data: {},
      sender: this,
      success: 'loadHostsSuccessCallback',
      error: 'loadHostsErrorCallback'
    });
  },

  /**
   * success callback of <code>loadHosts</code>
   * @param data
   * @param opt
   * @param params
   */
  loadHostsSuccessCallback: function (data, opt, params) {
    var hosts = {};

    data.items.forEach(function (item) {
      hosts[item.Hosts.host_name] = {
        name: item.Hosts.host_name,
        cpu: item.Hosts.cpu_count,
        memory: item.Hosts.total_mem,
        disk_info: item.Hosts.disk_info,
        bootStatus: "REGISTERED",
        isInstalled: true
      };
    });
    App.db.setHosts(hosts);
    this.set('controller.content.hosts', hosts);
    this.set('isLoaded', true);
  },

  /**
   * error callback of <code>loadHosts</code>
   */
  loadHostsErrorCallback: function() {
    this.set('isLoaded', true);
  },

  didInsertElement: function() {
    var currentStep = this.get('controller.currentStep');
    if (currentStep > 4) {
      this.get('controller').setLowerStepsDisable(currentStep);
    }
  }

});