/********************************************************************************
 * Copyright (C) 2018 TypeFox and others.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the Eclipse
 * Public License v. 2.0 are satisfied: GNU General Public License, version 2
 * with the GNU Classpath Exception which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 ********************************************************************************/ import { FrontendApplicationConfig , deepmerge } from '@theia/application-package/lib/application-props' ; export class FrontendApplicationConfigProvider { private static KEY = Symbol ( 'FrontendApplicationConfigProvider' ) ; static get ( ) { const config = FrontendApplicationConfigProvider . doGet ( ) ; if ( config === undefined ) { throw new Error ( 'The configuration is not set. Did you call FrontendApplicationConfigProvider#set?' ) ; } return config ; } static set ( config ) { if ( FrontendApplicationConfigProvider . doGet ( ) !== undefined ) { throw new Error ( 'The configuration is already set.' ) ; } const globalObject = window as any ; const key = FrontendApplicationConfigProvider . KEY ; globalObject [ key ] = deepmerge ( FrontendApplicationConfig . DEFAULT , config ) ; } private static doGet ( ) { const globalObject = window as any ; const key = FrontendApplicationConfigProvider . KEY ; return globalObject [ key ] ; } }