| /** |
| * 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.ConfigurationController = Em.Controller.extend({ |
| name: 'configurationController', |
| |
| getConfigsByTags: function (tags) { |
| var storedTags = []; |
| App.db.getConfigs().forEach(function(site){ |
| storedTags.push({ |
| siteName: site.type, |
| tagName: site.tag |
| }) |
| }); |
| if (this.checkTagsChanges(tags, storedTags)) { |
| return this.loadFromServer(tags); |
| } else { |
| return this.loadFromDB(tags.mapProperty('siteName')); |
| } |
| }, |
| /** |
| * check whether tag versions have been changed |
| * if they are different then return true |
| * otherwise false |
| * @param tags |
| * @param storedTags |
| * @return {Boolean} |
| */ |
| checkTagsChanges: function (tags, storedTags) { |
| var isDifferent = false; |
| var i = 0; |
| while (i < tags.length && !isDifferent) { |
| var storedTag = storedTags.findProperty('siteName', tags[i].siteName); |
| isDifferent = (!storedTag || storedTag.tagName !== tags[i].tagName); |
| i++; |
| } |
| return isDifferent; |
| }, |
| loadFromDB: function (siteNames) { |
| var configs = App.db.getConfigs(); |
| return configs.filter(function (site) { |
| return (siteNames.contains(site.type)); |
| }) |
| }, |
| /** |
| * load configs from server |
| * and update them in local DB |
| * @param tags |
| * @return {Array} |
| */ |
| loadFromServer: function (tags) { |
| var loadedConfigs = App.config.loadConfigsByTags(tags); |
| var storedConfigs = App.db.getConfigs(); |
| loadedConfigs.forEach(function (loadedSite) { |
| var storedSite = storedConfigs.findProperty('type', loadedSite.type); |
| if (storedSite) { |
| storedConfigs.tag = loadedSite.tag; |
| storedConfigs.properties = loadedSite.properties; |
| } else { |
| storedConfigs.push(loadedSite); |
| } |
| }); |
| App.db.setConfigs(storedConfigs); |
| return loadedConfigs; |
| } |
| |
| |
| }); |