| /* |
| * Copyright 1999,2006 The Apache Software Foundation. |
| * |
| * 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.catalina.tribes.transport.bio; |
| |
| import java.io.IOException; |
| import java.net.ServerSocket; |
| import java.net.Socket; |
| |
| import org.apache.catalina.tribes.ChannelReceiver; |
| import org.apache.catalina.tribes.io.ListenCallback; |
| import org.apache.catalina.tribes.io.ObjectReader; |
| import org.apache.catalina.tribes.transport.ReceiverBase; |
| import org.apache.catalina.tribes.transport.ThreadPool; |
| import org.apache.catalina.tribes.transport.WorkerThread; |
| |
| /** |
| * <p>Title: </p> |
| * |
| * <p>Description: </p> |
| * |
| * <p>Copyright: Copyright (c) 2005</p> |
| * |
| * <p>Company: </p> |
| * |
| * @author not attributable |
| * @version 1.0 |
| */ |
| public class BioReceiver extends ReceiverBase implements Runnable, ChannelReceiver, ListenCallback { |
| |
| protected static org.apache.commons.logging.Log log = org.apache.commons.logging.LogFactory.getLog(BioReceiver.class); |
| |
| protected ServerSocket serverSocket; |
| |
| public BioReceiver() { |
| } |
| |
| /** |
| * |
| * @throws IOException |
| * @todo Implement this org.apache.catalina.tribes.ChannelReceiver method |
| */ |
| public void start() throws IOException { |
| try { |
| setPool(new ThreadPool(getMaxThreads(),getMinThreads(),this)); |
| } catch (Exception x) { |
| log.fatal("ThreadPool can initilzed. Listener not started", x); |
| if ( x instanceof IOException ) throw (IOException)x; |
| else throw new IOException(x.getMessage()); |
| } |
| try { |
| getBind(); |
| bind(); |
| Thread t = new Thread(this, "BioReceiver"); |
| t.setDaemon(true); |
| t.start(); |
| } catch (Exception x) { |
| log.fatal("Unable to start cluster receiver", x); |
| if ( x instanceof IOException ) throw (IOException)x; |
| else throw new IOException(x.getMessage()); |
| } |
| } |
| |
| public WorkerThread getWorkerThread() { |
| return getReplicationThread(); |
| } |
| |
| protected BioReplicationThread getReplicationThread() { |
| BioReplicationThread result = new BioReplicationThread(this); |
| result.setOptions(getWorkerThreadOptions()); |
| result.setUseBufferPool(this.getUseBufferPool()); |
| return result; |
| } |
| |
| /** |
| * |
| * @todo Implement this org.apache.catalina.tribes.ChannelReceiver method |
| */ |
| public void stop() { |
| setListen(false); |
| try { |
| this.serverSocket.close(); |
| }catch ( Exception x ) {} |
| } |
| |
| |
| |
| |
| protected void bind() throws IOException { |
| // allocate an unbound server socket channel |
| serverSocket = new ServerSocket(); |
| // set the port the server channel will listen to |
| //serverSocket.bind(new InetSocketAddress(getBind(), getTcpListenPort())); |
| bind(serverSocket,getPort(),getAutoBind()); |
| } |
| |
| |
| |
| public void run() { |
| try { |
| listen(); |
| } catch (Exception x) { |
| log.error("Unable to run replication listener.", x); |
| } |
| } |
| |
| public void listen() throws Exception { |
| if (doListen()) { |
| log.warn("ServerSocket already started"); |
| return; |
| } |
| setListen(true); |
| |
| while ( doListen() ) { |
| Socket socket = null; |
| if ( getPool().available() < 1 ) { |
| if ( log.isWarnEnabled() ) |
| log.warn("All BIO server replication threads are busy, unable to handle more requests until a thread is freed up."); |
| } |
| BioReplicationThread thread = (BioReplicationThread)getPool().getWorker(); |
| if ( thread == null ) continue; //should never happen |
| try { |
| socket = serverSocket.accept(); |
| }catch ( Exception x ) { |
| if ( doListen() ) throw x; |
| } |
| if ( !doListen() ) { |
| thread.setDoRun(false); |
| thread.serviceSocket(null,null); |
| break; //regular shutdown |
| } |
| if ( socket == null ) continue; |
| socket.setReceiveBufferSize(getRxBufSize()); |
| socket.setSendBufferSize(getRxBufSize()); |
| socket.setTcpNoDelay(getTcpNoDelay()); |
| socket.setKeepAlive(getSoKeepAlive()); |
| socket.setOOBInline(getOoBInline()); |
| socket.setReuseAddress(getSoReuseAddress()); |
| socket.setSoLinger(getSoLingerOn(),getSoLingerTime()); |
| socket.setTrafficClass(getSoTrafficClass()); |
| socket.setSoTimeout(getTimeout()); |
| ObjectReader reader = new ObjectReader(socket); |
| thread.serviceSocket(socket,reader); |
| }//while |
| } |
| |
| |
| } |