| /******************************************************************************* |
| * Copyright (c) 2020 Obeo. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Obeo - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.acceleo.aql.ls; |
| |
| import java.io.IOException; |
| import java.net.InetAddress; |
| import java.net.ServerSocket; |
| import java.net.Socket; |
| import java.net.UnknownHostException; |
| |
| import org.eclipse.lsp4j.jsonrpc.Launcher; |
| import org.eclipse.lsp4j.launch.LSPLauncher; |
| import org.eclipse.lsp4j.services.LanguageClient; |
| |
| /** |
| * {@link AcceleoLanguageServer} over a socket. |
| * |
| * @author <a href="mailto:yvan.lussaud@obeo.fr">Yvan Lussaud</a> |
| */ |
| public class AcceleoSocketServer { |
| |
| /** |
| * Backlog for the socket server. |
| */ |
| private static final int BACKLOG = 50; |
| |
| /** |
| * The {@link AcceleoLanguageServerContext} of this server. |
| */ |
| private final AcceleoLanguageServerContext acceleoLanguageServerContext; |
| |
| /** |
| * The {@link ServerSocket}. |
| */ |
| private ServerSocket serverSocket; |
| |
| /** |
| * The server {@link Thread}. |
| */ |
| private Thread serverThread; |
| |
| /** |
| * Constructor. |
| * |
| * @param acceleoLanguageServerContext |
| * the (non-{@code null}) root {@link AcceleoLanguageServerContext} of this server. |
| */ |
| public AcceleoSocketServer(AcceleoLanguageServerContext acceleoLanguageServerContext) { |
| this.acceleoLanguageServerContext = acceleoLanguageServerContext; |
| |
| } |
| |
| /** |
| * Starts this server. |
| * |
| * @param host |
| * @throws UnknownHostException |
| * @throws IOException |
| */ |
| public synchronized void start(String host) throws UnknownHostException, IOException { |
| this.serverSocket = new ServerSocket(0, BACKLOG, InetAddress.getByName(host)); |
| this.serverThread = new Thread(new Runnable() { |
| |
| @Override |
| public void run() { |
| try { |
| final Socket client = serverSocket.accept(); |
| final AcceleoLanguageServer acceleoLanguageServer = new AcceleoLanguageServer( |
| AcceleoSocketServer.this.acceleoLanguageServerContext); |
| final Launcher<LanguageClient> launcher = LSPLauncher.createServerLauncher( |
| acceleoLanguageServer, client.getInputStream(), client.getOutputStream()); |
| launcher.startListening(); // the thread is created inside this method |
| acceleoLanguageServer.connect(launcher.getRemoteProxy()); |
| } catch (IOException e) { |
| // TODO Auto-generated catch block |
| e.printStackTrace(); |
| } |
| } |
| }, "Acceleo LS: " + serverSocket.getInetAddress().getHostName() + ":" + serverSocket.getLocalPort()); |
| this.serverThread.start(); |
| } |
| |
| /** |
| * Provides the port currently in use by this socket server. |
| * |
| * @return the port currently in use. |
| */ |
| public int getPort() { |
| return this.serverSocket.getLocalPort(); |
| } |
| |
| /** |
| * Stops this server. |
| * |
| * @throws IOException |
| * if an I/O error occurs when stopping the server. |
| */ |
| public synchronized void stop() throws IOException { |
| serverSocket.close(); |
| serverThread.interrupt(); |
| } |
| |
| } |