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* JBoss, Home of Professional Open Source
*
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* by the @author tags. See the COPYRIGHT.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.netty.channel.socket.oio;
import static org.jboss.netty.channel.Channels.*;
import java.net.SocketAddress;
import java.util.concurrent.Executor;
import org.jboss.netty.channel.AbstractChannelSink;
import org.jboss.netty.channel.ChannelEvent;
import org.jboss.netty.channel.ChannelFuture;
import org.jboss.netty.channel.ChannelFutureListener;
import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.ChannelState;
import org.jboss.netty.channel.ChannelStateEvent;
import org.jboss.netty.channel.MessageEvent;
import org.jboss.netty.util.ThreadRenamingRunnable;
/**
*
* @author The Netty Project (netty-dev@lists.jboss.org)
* @author Trustin Lee (tlee@redhat.com)
*
* @version $Rev: 1029 $, $Date: 2009-03-12 23:48:48 +0900 (Thu, 12 Mar 2009) $
*
*/
class OioDatagramPipelineSink extends AbstractChannelSink {
private final Executor workerExecutor;
OioDatagramPipelineSink(Executor workerExecutor) {
this.workerExecutor = workerExecutor;
}
public void eventSunk(
ChannelPipeline pipeline, ChannelEvent e) throws Exception {
OioDatagramChannel channel = (OioDatagramChannel) e.getChannel();
ChannelFuture future = e.getFuture();
if (e instanceof ChannelStateEvent) {
ChannelStateEvent stateEvent = (ChannelStateEvent) e;
ChannelState state = stateEvent.getState();
Object value = stateEvent.getValue();
switch (state) {
case OPEN:
if (Boolean.FALSE.equals(value)) {
OioDatagramWorker.close(channel, future);
}
break;
case BOUND:
if (value != null) {
bind(channel, future, (SocketAddress) value);
} else {
OioDatagramWorker.close(channel, future);
}
break;
case CONNECTED:
if (value != null) {
connect(channel, future, (SocketAddress) value);
} else {
OioDatagramWorker.disconnect(channel, future);
}
break;
case INTEREST_OPS:
OioDatagramWorker.setInterestOps(channel, future, ((Integer) value).intValue());
break;
}
} else if (e instanceof MessageEvent) {
MessageEvent evt = (MessageEvent) e;
OioDatagramWorker.write(
channel, future, evt.getMessage(), evt.getRemoteAddress());
}
}
private void bind(
OioDatagramChannel channel, ChannelFuture future,
SocketAddress localAddress) {
boolean bound = false;
boolean workerStarted = false;
try {
channel.socket.bind(localAddress);
bound = true;
// Fire events
future.setSuccess();
fireChannelBound(channel, channel.getLocalAddress());
// Start the business.
workerExecutor.execute(new ThreadRenamingRunnable(
new OioDatagramWorker(channel),
"Old I/O datagram worker (channelId: " + channel.getId() + ", " +
channel.getLocalAddress() + ')'));
workerStarted = true;
} catch (Throwable t) {
future.setFailure(t);
fireExceptionCaught(channel, t);
} finally {
if (bound && !workerStarted) {
OioDatagramWorker.close(channel, future);
}
}
}
private void connect(
OioDatagramChannel channel, ChannelFuture future,
SocketAddress remoteAddress) {
boolean bound = channel.isBound();
boolean connected = false;
boolean workerStarted = false;
future.addListener(ChannelFutureListener.CLOSE_ON_FAILURE);
try {
channel.socket.connect(remoteAddress);
connected = true;
// Fire events.
future.setSuccess();
if (!bound) {
fireChannelBound(channel, channel.getLocalAddress());
}
fireChannelConnected(channel, channel.getRemoteAddress());
String threadName =
"Old I/O datagram worker (channelId: " + channel.getId() + ", " +
channel.getLocalAddress() + " => " +
channel.getRemoteAddress() + ')';
if (!bound) {
// Start the business.
workerExecutor.execute(new ThreadRenamingRunnable(
new OioDatagramWorker(channel), threadName));
} else {
// Worker started by bind() - just rename.
Thread workerThread = channel.workerThread;
if (workerThread != null) {
try {
workerThread.setName(threadName);
} catch (SecurityException e) {
// Ignore.
}
}
}
workerStarted = true;
} catch (Throwable t) {
future.setFailure(t);
fireExceptionCaught(channel, t);
} finally {
if (connected && !workerStarted) {
OioDatagramWorker.close(channel, future);
}
}
}
}