/*
* Copyright 2009 Red Hat, Inc.
*
* Red Hat licenses this file to you 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.jboss.netty.example.qotm;
import java.net.InetSocketAddress;
import java.util.concurrent.Executors;
import org.jboss.netty.bootstrap.ConnectionlessBootstrap;
import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.ChannelPipelineFactory;
import org.jboss.netty.channel.Channels;
import org.jboss.netty.channel.FixedReceiveBufferSizePredictorFactory;
import org.jboss.netty.channel.socket.DatagramChannelFactory;
import org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory;
import org.jboss.netty.handler.codec.string.StringDecoder;
import org.jboss.netty.handler.codec.string.StringEncoder;
import org.jboss.netty.util.CharsetUtil;
/**
* A UDP server that responds to the QOTM (quote of the moment) request to a
* {@link QuoteOfTheMomentClient}.
*
* Inspired by <a href="http://java.sun.com/docs/books/tutorial/networking/datagrams/clientServer.html">the official Java tutorial</a>.
*
* @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
* @author <a href="http://gleamynode.net/">Trustin Lee</a>
* @version $Rev: 2104 $, $Date: 2010-01-28 16:50:28 +0900 (Thu, 28 Jan 2010) $
*/
public class QuoteOfTheMomentServer {
public static void main(String[] args) throws Exception {
DatagramChannelFactory f =
new NioDatagramChannelFactory(Executors.newCachedThreadPool());
ConnectionlessBootstrap b = new ConnectionlessBootstrap(f);
// Configure the pipeline factory.
b.setPipelineFactory(new ChannelPipelineFactory() {
public ChannelPipeline getPipeline() throws Exception {
return Channels.pipeline(
new StringEncoder(CharsetUtil.ISO_8859_1),
new StringDecoder(CharsetUtil.ISO_8859_1),
new QuoteOfTheMomentServerHandler());
}
});
// Enable broadcast
b.setOption("broadcast", "false");
// Allow packets as large as up to 1024 bytes (default is 768).
// You could increase or decrease this value to avoid truncated packets
// or to improve memory footprint respectively.
//
// Please also note that a large UDP packet might be truncated or
// dropped by your router no matter how you configured this option.
// In UDP, a packet is truncated or dropped if it is larger than a
// certain size, depending on router configuration. IPv4 routers
// truncate and IPv6 routers drop a large packet. That's why it is
// safe to send small packets in UDP.
b.setOption(
"receiveBufferSizePredictorFactory",
new FixedReceiveBufferSizePredictorFactory(1024));
// Bind to the port and start the service.
b.bind(new InetSocketAddress(8080));
}
}