| /** |
| * 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'); |
| var stringUtils = require('utils/string_utils'); |
| |
| /** |
| * Mixin with preconfigured initializers that helps to build conditional execution |
| * based on exit code from App.ConfigInitializerClass._initializerFlowCode. |
| * Each control flow initializer should has attribute <b>isChecker: true</b> |
| * Each handler should return exit code value based on App.ConfigInitializerClass._initializerFlowCode. |
| * |
| * There are few methods: |
| * @see App.ConfigInitializerClass.flowNext |
| * @see App.ConfigInitializerClass.flowSkipNext |
| * @see App.ConfigInitializerClass.flowSkipAll |
| * |
| * For details and examples @see App.AddComponentConfigInitializer |
| * |
| * @mixin App.ControlFlowInitializerMixin |
| */ |
| App.ControlFlowInitializerMixin = Em.Mixin.create({ |
| |
| initializerTypes: [ |
| { |
| name: 'namenode_ha_enabled', |
| method: '_initNameNodeHACheck' |
| }, |
| { |
| name: 'resourcemanager_ha_enabled', |
| method: '_initResourceManagerHACheck' |
| }, |
| { |
| name: 'hdp_stack_version_checker', |
| method: '_initHDPStackVersionCheck' |
| } |
| ], |
| |
| /** |
| * Control flow initializer based on minimal stack version. |
| * |
| * @param {string} minStackVersionNumber |
| * @return {object} |
| */ |
| getHDPStackVersionControl: function(minStackVersionNumber) { |
| return { type: 'hdp_stack_version_checker', isChecker: true, stackVersion: minStackVersionNumber }; |
| }, |
| |
| /** |
| * getHDPStackVersionControl handler. |
| * When stack version satisfies passed minStackVersionNumber computation process will continue. |
| * If not all next computation will be skipped. |
| * |
| * @param {configProperty} configProperty |
| * @param {topologyLocalDB} localDB |
| * @param {dependencies} dependencies |
| * @param {initializer} initializer |
| * @return {number} _initializerFlowCode exit code |
| */ |
| _initHDPStackVersionCheck: function(configProperty, localDB, dependencies, initializer) { |
| return (stringUtils.compareVersions(App.get('currentStackVersionNumber'), initializer.stackVersion) > -1) ? |
| this.flowNext() : |
| this.flowSkipAll(); |
| }, |
| |
| /** |
| * Control flow initializer based on NameNode HA Status. |
| * |
| * @return {initializer} |
| */ |
| getNameNodeHAControl: function() { |
| return { type: 'namenode_ha_enabled', isChecker: true }; |
| }, |
| |
| /** |
| * getNameNodeHAControl handler. |
| * When NameNode HA enabled next computation will be performed, either next will be skipped. |
| * |
| * @param {configProperty} configProperty |
| * @param {topologyLocalDB} localDB |
| * @param {dependencies} dependencies |
| * @param {initializer} initializer |
| * @return {number} _initializerFlowCode exit code |
| */ |
| _initNameNodeHACheck: function(configProperty, localDB, dependencies) { |
| return App.get('isHaEnabled') ? this.flowNext() : this.flowSkipNext(); |
| }, |
| |
| /** |
| * Control flow initializer based on ResourceManager HA Status. |
| * |
| * @return {initializer} |
| */ |
| getResourceManagerHAControl: function(trueBranch, falseBranch) { |
| return { type: 'resourcemanager_ha_enabled', isChecker: true }; |
| }, |
| |
| /** |
| * getResourceManagerHAControl handler. |
| * When ResourceManager HA enabled next computation will be performed, either next will be skipped. |
| * |
| * @param {configProperty} configProperty |
| * @param {topologyLocalDB} localDB |
| * @param {dependencies} dependencies |
| * @param {initializer} initializer |
| * @return {number} _initializerFlowCode exit code |
| */ |
| _initResourceManagerHACheck: function(configProperty, localDB, dependencies) { |
| return App.get('isRMHaEnabled') ? this.flowNext() : this.flowSkipNext(); |
| } |
| |
| }); |