/********************************************************************************
 * Copyright (C) 2018 Red Hat, Inc. 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 { URI } from '@theia/core/shared/vscode-uri' ; import * as theia from '@theia/plugin' ; import { DocumentsExtImpl } from '../documents' ; import { DocumentLink } from '../../common/plugin-api-rpc-model' ; import * as Converter from '../type-converters' ; import { ObjectIdentifier } from '../../common/object-identifier' ; export class LinkProviderAdapter { private cacheId = 0 ; private cache = new Map < number , theia . DocumentLink > ( ) ; constructor ( private readonly provider , private readonly documents ) { } provideLinks ( resource , token ) { const document = this . documents . getDocumentData ( resource ) ; if ( ! document ) { return Promise . reject ( new Error ( `There is no document for ${ resource }` ) ) ; } const doc = document . document ; return Promise . resolve ( this . provider . provideDocumentLinks ( doc , token ) ) . then ( links => { if ( ! Array . isArray ( links ) ) { return undefined ; } const result = [ ] ; for ( const link of links ) { const data = Converter . DocumentLink . from ( link ) ; const id = this . cacheId ++ ; ObjectIdentifier . mixin ( data , id ) ; this . cache . set ( id , link ) ; result . push ( data ) ; } return result ; } ) ; } resolveLink ( link , token ) { if ( typeof this . provider . resolveDocumentLink !== 'function' ) { return Promise . resolve ( undefined ) ; } const id = ObjectIdentifier . of ( link ) ; const item = this . cache . get ( id ) ; if ( ! item ) { return Promise . resolve ( undefined ) ; } return Promise . resolve ( this . provider . resolveDocumentLink ( item , token ) ) . then ( value => { if ( value ) { return Converter . DocumentLink . from ( value ) ; } return undefined ; } ) ; } releaseDocumentLinks ( ids ) { ids . forEach ( id => { this . cache . delete ( id ) ; } ) ; } }