/** | |
* | |
* Copyright 2005-2006 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.activeio.stream.sync.socket; | |
import java.io.IOException; | |
import java.net.InetAddress; | |
import java.net.ServerSocket; | |
import java.net.Socket; | |
import java.net.URI; | |
import java.net.URISyntaxException; | |
import javax.net.ServerSocketFactory; | |
import javax.net.SocketFactory; | |
import org.apache.activeio.stream.sync.StreamChannel; | |
import org.apache.activeio.stream.sync.StreamChannelFactory; | |
import org.apache.activeio.stream.sync.StreamChannelServer; | |
import org.apache.activeio.util.URISupport; | |
/** | |
* A TcpStreamChannelFactory creates {@see org.apache.activeio.net.TcpStreamChannel} | |
* and {@see org.apache.activeio.net.TcpStreamChannelServer} objects. | |
* | |
* @version $Revision$ | |
*/ | |
public class SocketStreamChannelFactory implements StreamChannelFactory { | |
protected static final int DEFAULT_BACKLOG = 500; | |
private final SocketFactory socketFactory; | |
private final ServerSocketFactory serverSocketFactory; | |
private int backlog = DEFAULT_BACKLOG; | |
public SocketStreamChannelFactory() { | |
this(SocketFactory.getDefault(), ServerSocketFactory.getDefault()); | |
} | |
public SocketStreamChannelFactory(SocketFactory socketFactory, ServerSocketFactory serverSocketFactory) { | |
this.socketFactory = socketFactory; | |
this.serverSocketFactory = serverSocketFactory; | |
} | |
/** | |
* Uses the {@param location}'s host and port to create a tcp connection to a remote host. | |
* | |
* @see org.apache.activeio.StreamChannelFactory#openStreamChannel(java.net.URI) | |
*/ | |
public StreamChannel openStreamChannel(URI location) throws IOException { | |
Socket socket=null; | |
socket = socketFactory.createSocket(location.getHost(), location.getPort()); | |
return createStreamChannel(socket); | |
} | |
/** | |
* @param socket | |
* @return | |
* @throws IOException | |
*/ | |
protected StreamChannel createStreamChannel(Socket socket) throws IOException { | |
return new SocketStreamChannel(socket); | |
} | |
/** | |
* Binds a server socket a the {@param bindURI}'s port. | |
* | |
* @see org.apache.activeio.StreamChannelFactory#bindStreamChannel(java.net.URI) | |
*/ | |
public StreamChannelServer bindStreamChannel(URI bindURI) throws IOException { | |
String host = bindURI.getHost(); | |
InetAddress addr; | |
if( host == null || host.length() == 0 || host.equals("localhost") || host.equals("0.0.0.0") || InetAddress.getLocalHost().getHostName().equals(host) ) { | |
addr = InetAddress.getLocalHost(); | |
} else { | |
addr = InetAddress.getByName(host); | |
} | |
ServerSocket serverSocket; | |
if (addr.equals(InetAddress.getLocalHost())) { | |
serverSocket = serverSocketFactory.createServerSocket(bindURI.getPort(), backlog); | |
} else { | |
serverSocket = serverSocketFactory.createServerSocket(bindURI.getPort(), backlog, addr); | |
} | |
URI connectURI=bindURI; | |
try { | |
// connectURI = URISupport.changeHost(connectURI, addr.getHostName()); | |
connectURI = URISupport.changePort(connectURI, serverSocket.getLocalPort()); | |
} catch (URISyntaxException e) { | |
throw (IOException)new IOException("Could build connect URI: "+e).initCause(e); | |
} | |
return new SocketStreamChannelServer(serverSocket, bindURI, connectURI); | |
} | |
/** | |
* @return Returns the backlog. | |
*/ | |
public int getBacklog() { | |
return backlog; | |
} | |
/** | |
* @param backlog | |
* The backlog to set. | |
*/ | |
public void setBacklog(int backlog) { | |
this.backlog = backlog; | |
} | |
} |