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Diffstat (limited to 'platform/framework/src/resolve/ExtensionResolver.js')
| -rw-r--r-- | platform/framework/src/resolve/ExtensionResolver.js | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/platform/framework/src/resolve/ExtensionResolver.js b/platform/framework/src/resolve/ExtensionResolver.js deleted file mode 100644 index 208f51868..000000000 --- a/platform/framework/src/resolve/ExtensionResolver.js +++ /dev/null @@ -1,147 +0,0 @@ -/***************************************************************************** - * Open MCT, Copyright (c) 2014-2021, United States Government - * as represented by the Administrator of the National Aeronautics and Space - * Administration. All rights reserved. - * - * Open MCT is licensed 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. - * - * Open MCT includes source code licensed under additional open source - * licenses. See the Open Source Licenses file (LICENSES.md) included with - * this source code distribution or the Licensing information page available - * at runtime from the About dialog for additional information. - *****************************************************************************/ - -/** - * Module defining ExtensionResolver. Created by vwoeltje on 11/3/14. - */ -define( - [], - function () { - - /** - * An ExtensionResolver is responsible for loading any implementation - * modules associated with specific extensions. - * - * @param {ImplementationLoader} loader used to load implementations - * @param {*} $log Angular's logging service - * @memberof platform/framework - * @constructor - */ - function ExtensionResolver(loader, $log) { - this.loader = loader; - this.$log = $log; - } - - /** - * Resolve the provided extension; this will give a promise - * for the extension's implementation, if one has been - * specified, or for the plain definition of the extension - * otherwise. The plain definition will also be given - * if the implementation fails to load for some reason. - * - * All key-value pairs from the extension definition - * will additionally be attached to any loaded implementation. - * - * @param {Extension} extension the extension to resolve - * @returns {Promise} a promise for the resolved extension - */ - ExtensionResolver.prototype.resolve = function (extension) { - var loader = this.loader, - $log = this.$log; - - function loadImplementation(ext) { - var implPromise = ext.hasImplementationValue() - ? Promise.resolve(ext.getImplementationValue()) - : loader.load(ext.getImplementationPath()), - definition = ext.getDefinition(); - - // Wrap a constructor function (to avoid modifying the original) - function constructorFor(impl) { - function Constructor() { - return impl.apply(this, arguments); - } - - Constructor.prototype = impl.prototype; - - return Constructor; - } - - // Attach values from the object definition to the - // loaded implementation. - function attachDefinition(impl) { - var result = (typeof impl === 'function') - ? constructorFor(impl) - : Object.create(impl); - - // Copy over static properties - Object.keys(impl).forEach(function (k) { - result[k] = impl[k]; - }); - - // Copy over definition - Object.keys(definition).forEach(function (k) { - if (result[k] === undefined) { - result[k] = definition[k]; - } - }); - result.definition = definition; - - // Log that this load was successful - $log.info("Resolved " + ext.getLogName()); - - return result; - } - - // Log any errors in loading the implementation, and - // return the plain extension definition instead. - function handleError(err) { - // Build up a log message from parts - var message = [ - "Could not load implementation for extension ", - ext.getLogName(), - " due to ", - err.message - ].join(""); - - // Log that the extension was not loaded - $log.warn(message); - - return ext.getDefinition(); - } - - if (!ext.hasImplementationValue()) { - // Log that loading has begun - $log.info([ - "Loading implementation ", - ext.getImplementationPath(), - " for extension ", - ext.getLogName() - ].join("")); - } - - return implPromise.then(attachDefinition, handleError); - } - - // Log that loading has begun - $log.info([ - "Resolving extension ", - extension.getLogName() - ].join("")); - - return extension.hasImplementation() - ? loadImplementation(extension) - : Promise.resolve(extension.getDefinition()); - }; - - return ExtensionResolver; - } -); |