| /** |
| * |
| * Copyright 2005-2006 The Apache Software Foundation or its licensors, as applicable. |
| * |
| * 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. |
| */ |
| package org.apache.xbean.terminal.telnet; |
| |
| import java.io.IOException; |
| import java.net.ServerSocket; |
| import java.net.Socket; |
| |
| public class TelnetDaemon implements Runnable { |
| |
| private final TelnetShell shell; |
| private final int port; |
| |
| private ServerSocket serverSocket; |
| |
| /** |
| * We start out in a "stopped" state until someone calls the start method. |
| */ |
| private boolean stop = true; |
| |
| public TelnetDaemon(String serverName, int port) { |
| this.port = port; |
| this.shell = new TelnetShell(serverName); |
| } |
| |
| public void start() throws Exception { |
| synchronized (this) { |
| // Don't bother if we are already started/starting |
| if (!stop) |
| return; |
| |
| stop = false; |
| |
| // Do our stuff |
| try { |
| serverSocket = new ServerSocket(port, 20); |
| Thread d = new Thread(this); |
| d.setName("service.shell@" + d.hashCode()); |
| d.setDaemon(true); |
| d.start(); |
| } catch (Exception e) { |
| throw new Exception("Service failed to start.", e); |
| } |
| } |
| } |
| |
| public void stop() throws Exception { |
| synchronized (this) { |
| if (stop) { |
| return; |
| } |
| stop = true; |
| try { |
| this.notifyAll(); |
| } catch (Throwable t) { |
| t.printStackTrace(); |
| } |
| } |
| } |
| |
| public synchronized void service(final Socket socket) throws IOException { |
| Thread d = new Thread(new Runnable() { |
| public void run() { |
| try { |
| shell.service(socket); |
| } catch (SecurityException e) { |
| } catch (Throwable e) { |
| } finally { |
| try { |
| if (socket != null) |
| socket.close(); |
| } catch (Throwable t) { |
| } |
| } |
| } |
| }); |
| d.setDaemon(true); |
| d.start(); |
| } |
| |
| public void run() { |
| |
| Socket socket = null; |
| |
| while (!stop) { |
| try { |
| socket = serverSocket.accept(); |
| socket.setTcpNoDelay(true); |
| if (!stop) service(socket); |
| } catch (SecurityException e) { |
| } catch (Throwable e) { |
| } |
| } |
| } |
| |
| } |