1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 | 1 1 1 337 337 337 337 337 337 337 337 337 353 353 353 353 353 353 353 4 4 1 3 349 353 337 455 455 455 455 337 118 118 118 56 56 62 62 32 32 32 32 32 32 32 32 32 32 32 33 33 33 29 33 29 64 64 64 276 276 285 285 285 276 64 3 5 3 127 127 97 127 | 'use strict'; ;require.register("utils/configs/config_initializer_class", 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. */ var App = require('app'); /** * @typedef {object} initializer * @property {string} type initializer type name * @property {boolean} [isChecker] determines control flow callback */ /** * @typedef {object} initializerType * @property {string} name key * @property {string} method function's name (prefer to start method-name with '_init' or '_initAs'). Each method here is called with arguments equal to <code>initialValue</code>-call args. Initializer-settings are added as last argument */ /** * Minimal fields-list that should be in the config-object * There is no way to set value without any of them * * @typedef {object} configProperty * @property {string} name config's name * @property {number|string} value current value * @property {string} filename file name where this config is * @property {number|string} [recommendedValue] value which is recommended */ /** * Basic class for config-initializers * Each child should fill <code>initializers</code> or <code>uniqueInitializers</code> and <code>initializerTypes</code> * Usage: * <pre> * var myCoolInitializer = App.ConfigInitializerClass.create({ * initializers: { * 'my-cool-config': { * type: 'some_type' * } * }, * * initializerTypes: { * some_type: { * method: '_initAsCool' * } * }, * * _initAsCool: function (configProperty, localDB, dependencies, initializer) { * // some magic * return configProperty; * } * }); * * var myConfig = { name: 'my-cool-config' }; * var localDB = getLocalDB(); * var dependencies = {}; * myCoolInitializer.initialValue(myConfig, localDB, dependencies); * </pre> * <code>dependencies</code> - it's an object with almost any information that might be needed to set config's value. It * shouldn't contain App.*-flags like 'isHaEnabled' or 'isHadoop2Stack'. They might be accessed directly from App. But something * bigger data should be pulled to the <code>dependencies</code>. * Information about cluster's hosts, topology of master components should be in the <code>localDB</code> * * @type {ConfigInitializerClass} * @augments {Em.Object} */ App.ConfigInitializerClass = Em.Object.extend({ _initializerFlowCode: { next: 0, skipNext: 1, skipAll: 2 }, concatenatedProperties: ['initializerTypes'], /** * Map with configurations for config initializers * It's used only for initializers which are common for some configs (if not - use <code>uniqueInitializers</code>-map) * Key {string} configProperty-name * Value {initializer|initializer[]} settings for initializer * * @type {object} */ initializers: {}, /** * Map with initializers types * It's not overridden in the child-classes (@see Ember's concatenatedProperties) * * @type {initializerType[]} */ initializerTypes: [], /** * Map with initializers that are used only for one config (are unique) * Key: configProperty-name * Value: method-name * Every method from this map is called with same arguments as <code>initialValue</code> is (prefer to start method-name with '_init' or '_initAs') * * @type {object} */ uniqueInitializers: {}, /** * Wrapper for common initializers * Execute initializer if it is a function or throw an error otherwise * * @param {configProperty} configProperty * @param {topologyLocalDB} localDB * @param {object} dependencies * @returns {Object} * @private */ _defaultInitializer: function _defaultInitializer(configProperty, localDB, dependencies) { var args = [].slice.call(arguments); var self = this; var initializers = this.get('initializers'); var initializerTypes = this.get('initializerTypes'); var initializer = initializers[Em.get(configProperty, 'name')]; Eif (initializer) { initializer = Em.makeArray(initializer); var i = 0; while (i < initializer.length) { var init = initializer[i]; var _args = [].slice.call(args); var type = initializerTypes.findProperty('name', init.type); // add initializer-settings _args.push(init); var methodName = type.method; Em.assert('method-initializer is not a function ' + methodName, 'function' === Em.typeOf(self[methodName])); if (init.isChecker) { var result = self[methodName].apply(self, _args); if (result === this.flowSkipNext()) { i++; // skip next } else { Iif (result === this.flowSkipAll()) { break; } } } else { configProperty = self[methodName].apply(self, _args); } i++; } } return configProperty; }, /** * Entry-point for any config's value initializing * Before calling it, be sure that <code>initializers</code> or <code>uniqueInitializers</code> * contains record about needed configs * * @param {configProperty} configProperty * @param {topologyLocalDB} localDB * @param {object} dependencies * @returns {Object} * @method initialValue */ initialValue: function initialValue(configProperty, localDB, dependencies) { var configName = Em.get(configProperty, 'name'); var initializers = this.get('initializers'); var initializer = initializers[configName]; if (initializer) { return this._defaultInitializer(configProperty, localDB, dependencies); } var uniqueInitializers = this.get('uniqueInitializers'); var uniqueInitializer = uniqueInitializers[configName]; if (uniqueInitializer) { var args = [].slice.call(arguments); return this[uniqueInitializer].apply(this, args); } Em.set(configProperty, 'initialValue', Em.get(configProperty, 'value')); return configProperty; }, /** * Should do some preparing for initializing-process * Shouldn't be redefined without needs * Should be used before any <code>initialValue</code>-calls (if needed) * * @method setup */ setup: Em.K, /** * Should restore Initializer's to the initial state * Basically, should revert changes done in the <code>setup</code> * * @method cleanup */ cleanup: Em.K, /** * Setup <code>initializers</code> * There are some configs with names based on other config's values. * Example: config with name <code>hadoop.proxyuser.{{oozieUser}}.hosts</code> * Here <code>{{oozieUser}}</code> is value of the config <code>['oozie-env']['oozie_user']</code>. * So, when <code>initializers</code> are manually set up in the Initializer-instance, there is no way to populate initializer * for such configs. Reason: each initializer's key is a config-name which is compared strictly to the provided config-name. * Solution: use config-names with placeholders. Example: <code>hadoop.proxyuser.${oozieUser}.hosts</code> * In this case, before calling <code>initialValue</code> this key should be updated with real value. And it should be done * in the common way for the all such configs. * Code example: * <pre> * var mySettings = { * oozieUser: 'someDude' * }; * * var myCoolInitializer = App.MoveComponentConfigInitializerClass.create({ * initializers: { * 'hadoop.proxyuser.{{oozieUser}}.hosts': { * // some setting are here * } * }, * * setup: function (settings) { * this._updateInitializers(settings); * }, * * cleanup: function () { * this._restoreInitializers(); * } * * }); * * myCoolInitializer.setup(mySettings); // after this call `myCoolInitializer.initializers` will contain two keys * console.log(myCoolInitializer.initializers); // {'hadoop.proxyuser.{{oozieUser}}.hosts': {}, 'hadoop.proxyuser.someDude.hosts': {}} * // it's possible to call `initialValue` now * myCoolInitializer.initialValue({name: 'hadoop.proxyuser.someDude.hosts', value: ''}, {}, {}); * myCoolInitializer.cleanup(); // after updating values for the all configs * </pre> * Additional key in the <code>initializers</code> won't cause any issues. * Keep in mind replacing-rules: * <ul> * <li>Each field in the <code>settings</code> should be a string or number</li> * <li>Substring that will be replaced should be wrapped with '{{', '}}'</li> * <li>Each field is searched in the each initializers-key, so try to avoid names-collision</li> * <li>Value for 'new' key is the same as for 'old' ('hadoop.proxyuser.{{oozieUser}}.hosts' and 'hadoop.proxyuser.someDude.hosts' will have same initializer)</li> * </ul> * <b>Important! Be sure, that you call <code>_restoreInitializers</code> before calling <code>_updateInitializers</code> second time</b> * * @param {object} settings * @method _updateInitializers */ _updateInitializers: function _updateInitializers(settings) { settings = settings || {}; var originalInitializers = this.get('initializers'); var copyInitializers = Em.copy(originalInitializers, true); this.set('__copyInitializers', copyInitializers); var initializers = this._updateNames('initializers', settings); this._setForComputed('initializers', initializers); var originalUniqueInitializers = this.get('uniqueInitializers'); var copyUniqueInitializers = Em.copy(originalUniqueInitializers, true); this.set('__copyUniqueInitializers', copyUniqueInitializers); var uniqueInitializers = this._updateNames('uniqueInitializers', settings); this._setForComputed('uniqueInitializers', uniqueInitializers); }, /** * Revert names changes done in the <code>_updateInitializers</code> * * @method _restoreInitializers */ _restoreInitializers: function _restoreInitializers() { var copyInitializers = this.get('__copyInitializers'); var copyUniqueInitializers = this.get('__copyUniqueInitializers'); if ('object' === Em.typeOf(copyInitializers)) { this._setForComputed('initializers', Em.copy(copyInitializers, true)); } if ('object' === Em.typeOf(copyUniqueInitializers)) { this._setForComputed('uniqueInitializers', Em.copy(copyUniqueInitializers, true)); } }, /** * Replace list of <code>settings</code> in the sourceKey * Example: * <pre> * var sourceKey = '{{A}},{{B}},{{C}}'; * var settings = {A: 'a', B: 'b', C: 'c'}; * sourceKey = _updateNames(sourceKey, settings); * console.log(sourceKey); // 'a,b,c' * </pre> * * @param {string} sourceKey * @param {object} settings * @returns {object} * @private * @method _updateNames */ _updateNames: function _updateNames(sourceKey, settings) { settings = settings || {}; var source = this.get(sourceKey); Object.keys(source).forEach(function (configName) { var initializer = source[configName]; Object.keys(settings).forEach(function (key) { var replaceWith = settings[key]; var toReplace = '{{' + key + '}}'; configName = configName.replace(toReplace, replaceWith); }); source[configName] = initializer; }); return source; }, flowNext: function flowNext() { return this.get('_initializerFlowCode.next'); }, flowSkipNext: function flowSkipNext() { return this.get('_initializerFlowCode.skipNext'); }, flowSkipAll: function flowSkipAll() { return this.get('_initializerFlowCode.skipAll'); }, /** * Set value for computed property using `reopen`. Currently used to update 'initializers' * and 'uniqueInitializers'. * Used to set value for props like: * <code>cp: function() { }.property()</code> * <code> * var obj = App.ConfigInitializerClass.create({ * cp: function() { * return { * key: "value" * } * }.property(), * setProp: function() { * this.set('cp', {newKey: "new_value"}); // will not change `cp` value * }, * updateProp: function() { * this._setForComputed('cp', { newKey: "new_value"}); // will update * } * }); * * obj.get('cp'); // {key: "value"} * obj.setProp(); * obj.get('cp'); // {key: "value"} * obj.updateProp(); * obj.get('cp'); // {newKey: "new_value"} * </code> * @private * @param {string} key * @param {*} value */ _setForComputed: function _setForComputed(key, value) { var obj = {}; obj[key] = function () { return value; }.property(); this.reopen(obj); } }); }); |