ambari/ambari-web/app/controllers/main/host/configs_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');

App.MainHostServiceConfigsController = App.MainServiceInfoConfigsController.extend({
  name: 'mainHostServiceConfigsController',
  host: null,
  isHostsConfigsPage: true,
  typeTagToHostMap: null,
  configKeyToConfigMap: null,

  /**
   * On load function
   */
  loadStep: function () {
    var content = this.get('content');
    this.set('host', content.host);
    this._super();
  },

  /**
   * Removes categories which are not valid for this host. Ex: Remove JOBTRACKER
   * category on host which does not have it installed.
   */
  renderServiceConfigs: function (serviceConfigs) {
    var newServiceConfigs = jQuery.extend({}, serviceConfigs);
    newServiceConfigs.configCategories = this.filterServiceConfigs(serviceConfigs.configCategories);
    this._super(newServiceConfigs);
  },
  /**
   * filter config categories by host-component of host
   * @param configCategories
   * @return {Array}
   */
  filterServiceConfigs: function (configCategories) {
    var hostComponents = this.get('host.hostComponents');
    var hostHostComponentNames = (hostComponents) ? hostComponents.mapProperty('componentName') : [];

    return configCategories.filter(function (category) {
      var hcNames = category.get('hostComponentNames');
      if (hcNames && hcNames.length > 0) {
        for (var i = 0, l = hcNames.length; i < l; i++) {
          if (hostHostComponentNames.contains(hcNames[i])) {
            return true;
          }
        }
        return false;
      }
      return true;
    });
  },

  /**
   * invoke dialog for switching group of host
   */
  switchHostGroup: function () {
    var self = this;
    App.config.launchSwitchConfigGroupOfHostDialog(this.get('selectedConfigGroup'), this.get('configGroups'), this.get('host.hostName'), function (newGroup) {
      self.set('selectedConfigGroup', newGroup);
    });
  }
});