Code coverage report for app/mixins/common/hosts/host_component_recommendation_mixin.js

Statements: 100% (18 / 18)      Branches: 87.5% (7 / 8)      Functions: 77.78% (7 / 9)      Lines: 100% (17 / 17)      Ignored: none     

All files » app/mixins/common/hosts/ » host_component_recommendation_mixin.js
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'use strict';
 
;require.register("mixins/common/hosts/host_component_recommendation_mixin", function (exports, require, module) {
  /**
   * 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.
   */
 
  require('mixins/common/blueprint');
 
  var App = require('app');
 
  /**
   * @typedef {object} RecommendComponentObject
   * @property {string} componentName name of the component
   * @property {number} [size=0] desired components size
   * @property {string[]} [hosts=[]] hosts assigned to component
   */
 
  /**
   * @typedef {object} HostComponentRecommendationOptions
   * @property {string[]} hosts list of host names, in most cases all available host names
   * @property {RecommendComponentObject[]} components list of components
   * @property {string[]} services list of service names
   * @property {object} [blueprint=null] when null blueprint will be created by <code>HostComponentRecommendationOptions.components</code> attribute
   */
 
  /**
   * @typedef {object} HostRecommendationRequestData
   * @property {string} stackVersionUrl stack version url
   * @property {string[]} hosts host names
   * @property {string[]} services service names
   * @property {string} recommend recommendation type e.g. 'host_groups'
   * @property {object} recommendations blueprint object
   */
 
  /**
   * Contains methods to get server recommendation and validation for host components
   * @type {Em.Mixin}
   */
  App.HostComponentRecommendationMixin = Em.Mixin.create(App.BlueprintMixin, {
 
    /**
     * Get recommendations for selected components
     * @method getRecommendedHosts
     * @param {HostComponentRecommendationOptions} recommend list of the components
     * @return {$.Deferred}
     */
    getRecommendedHosts: function getRecommendedHosts(options) {
      var opts = $.extend({
        services: [],
        hosts: [],
        components: [],
        blueprint: null
      }, options || {});
 
      opts.components = this.formatRecommendComponents(opts.components);
      return this.loadComponentsRecommendationsFromServer(this.getRecommendationRequestData(opts));
    },
 
    /**
     * @method formatRecommendComponents
     * @param {RecommendComponentsObject[]} components
     * @returns {Em.Object[]}
     */
    formatRecommendComponents: function formatRecommendComponents(components) {
      var res = [];
      if (!components) return [];
      components.forEach(function (component) {
        var componentName = Em.get(component, 'componentName');
        Eif (Em.get(component, 'hosts.length')) {
          Em.get(component, 'hosts').forEach(function (hostName) {
            res.push(Em.Object.create({
              componentName: componentName,
              hostName: hostName
            }));
          });
        }
      });
      return res;
    },
 
    /**
     * Returns request data for recommendation request
     * @param {HostComponentRecommendationOptions} options
     * @return {HostRecommendationRequestData}
     * @method getRecommendationRequestData
     */
    getRecommendationRequestData: function getRecommendationRequestData(options) {
      return {
        recommend: 'host_groups',
        stackVersionUrl: App.get('stackVersionURL'),
        hosts: options.hosts,
        services: options.services,
        recommendations: options.blueprint || this.getComponentsBlueprint(options.components)
      };
    },
 
    /**
     * Get recommendations info from API
     * @method loadComponentsRecommendationsFromServer
     * @param {object} recommendationData
     * @returns {$.Deferred}
     */
    loadComponentsRecommendationsFromServer: function loadComponentsRecommendationsFromServer(recommendationData) {
      return App.ajax.send({
        name: 'wizard.loadrecommendations',
        sender: this,
        data: recommendationData,
        success: 'loadRecommendationsSuccessCallback',
        error: 'loadRecommendationsErrorCallback'
      });
    },
 
    loadRecommendationsSuccessCallback: function loadRecommendationsSuccessCallback() {},
    loadRecommendationsErrorCallback: function loadRecommendationsErrorCallback() {}
  });
});