| /** |
| * 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', |
| |
| /** |
| * get configs by tags |
| * return Deferred object with configs as argument |
| * @param tags {Object} |
| * ** siteName |
| * ** tagName (optional) |
| * @return {object} |
| */ |
| 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')); |
| } |
| }, |
| |
| /** |
| * if no sites specified then configs from all sites will be fetched |
| * @param {Array} sites |
| * @returns {$.Deferred} |
| */ |
| getCurrentConfigsBySites: function (sites = []) { |
| const dfd = $.Deferred(); |
| this.getConfigTags(sites).done((tags) => { |
| this.getConfigsByTags(tags).done(dfd.resolve); |
| }); |
| return dfd.promise(); |
| }, |
| |
| /** |
| * 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 || !tags[i].tagName || storedTag.tagName !== tags[i].tagName); |
| i++; |
| } |
| return isDifferent; |
| }, |
| |
| /** |
| * |
| * @param {Array} siteNames |
| * @returns {*} |
| */ |
| loadFromDB: function (siteNames) { |
| var dfd = $.Deferred(); |
| var configs = App.db.getConfigs().filter(function (site) { |
| return (siteNames.contains(site.type)); |
| }); |
| dfd.resolve(configs); |
| return dfd.promise() |
| }, |
| /** |
| * load configs from server |
| * and update them in local DB |
| * @param tags |
| * @return {Array} |
| */ |
| loadFromServer: function (tags) { |
| var self = this; |
| var dfd = $.Deferred(); |
| if (!tags.everyProperty('tagName')) { |
| var configTags; |
| var jqXhr = this.loadConfigTags(); |
| jqXhr.done(function (data) { |
| configTags = data.Clusters.desired_configs; |
| tags.forEach(function (_tag) { |
| if (_tag.siteName && configTags[_tag.siteName] && !_tag.tagName) { |
| _tag.tagName = configTags[_tag.siteName].tag; |
| } |
| }, self); |
| self.loadConfigsByTags(tags, dfd); |
| }); |
| } else { |
| self.loadConfigsByTags(tags, dfd); |
| } |
| return dfd.promise(); |
| }, |
| |
| /** |
| * loadConfigsByTags: Loads properties for a config tag |
| * @params tags |
| * @params dfd jqXhr promise |
| */ |
| loadConfigsByTags: function (tags, dfd) { |
| var self = this; |
| var loadedConfigs = []; |
| App.config.loadConfigsByTags(tags).done(function (data) { |
| if (data.items) { |
| data.items.forEach(function (item) { |
| loadedConfigs.push(item); |
| }); |
| } |
| }).complete(function () { |
| self.saveToDB(loadedConfigs); |
| dfd.resolve(loadedConfigs); |
| }); |
| }, |
| |
| /** |
| * loadConfigTags: Loads all config tags applied to the cluster |
| * @return: jqXhr promise |
| */ |
| loadConfigTags: function () { |
| return App.ajax.send({ |
| name: 'config.tags', |
| sender: this |
| }); |
| }, |
| |
| /** |
| * save properties obtained from server to local DB |
| * @param loadedConfigs |
| */ |
| saveToDB: function (loadedConfigs) { |
| var storedConfigs = App.db.getConfigs(); |
| loadedConfigs.forEach(function (loadedSite) { |
| var storedSite = storedConfigs.findProperty('type', loadedSite.type); |
| if (storedSite) { |
| storedSite.tag = loadedSite.tag; |
| storedSite.properties = loadedSite.properties; |
| storedSite.properties_attributes = loadedSite.properties_attributes; |
| } else { |
| storedConfigs.push(loadedSite); |
| } |
| }); |
| App.db.setConfigs(storedConfigs); |
| }, |
| |
| /** |
| * @param {Array} sites |
| * @return {Array} |
| */ |
| getConfigTags: function(sites = []) { |
| const dfd = $.Deferred(); |
| if (App.db.getTags().length > 0) { |
| dfd.resolve(this.extractTagsFromLocalDB(sites)); |
| } else { |
| this.updateConfigTags().always(() => { |
| dfd.resolve(this.extractTagsFromLocalDB(sites)); |
| }); |
| } |
| return dfd.promise(); |
| }, |
| |
| /** |
| * |
| * @param {Array} sites |
| * @return {Array} |
| */ |
| extractTagsFromLocalDB: function(sites) { |
| return App.db.getTags().filter((tag) => { |
| if (sites.length > 0) { |
| return sites.contains(tag.siteName); |
| } else { |
| return true; |
| } |
| }); |
| }, |
| |
| /** |
| * update configs' tags from server |
| */ |
| updateConfigTags: function() { |
| return this.loadConfigTags().done((data) => { |
| const tags = []; |
| for (let site in data.Clusters.desired_configs) { |
| tags.push({ |
| siteName: site, |
| tagName: data.Clusters.desired_configs[site].tag |
| }); |
| } |
| App.db.setTags(tags); |
| }); |
| } |
| }); |