io.netty.example.udt.echo.message.MsgEchoServer Maven / Gradle / Ivy
/*
* Copyright 2012 The Netty Project
*
* The Netty Project 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 io.netty.example.udt.echo.message;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.udt.UdtChannel;
import io.netty.channel.udt.nio.NioUdtProvider;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;
import io.netty.util.concurrent.DefaultThreadFactory;
import java.util.concurrent.ThreadFactory;
/**
* UDT Message Flow Server
*
* Echoes back any received data from a client.
*/
public final class MsgEchoServer {
static final int PORT = Integer.parseInt(System.getProperty("port", "8007"));
public static void main(String[] args) throws Exception {
final ThreadFactory acceptFactory = new DefaultThreadFactory("accept");
final ThreadFactory connectFactory = new DefaultThreadFactory("connect");
final NioEventLoopGroup acceptGroup =
new NioEventLoopGroup(1, acceptFactory, NioUdtProvider.MESSAGE_PROVIDER);
final NioEventLoopGroup connectGroup =
new NioEventLoopGroup(1, connectFactory, NioUdtProvider.MESSAGE_PROVIDER);
// Configure the server.
try {
final ServerBootstrap boot = new ServerBootstrap();
boot.group(acceptGroup, connectGroup)
.channelFactory(NioUdtProvider.MESSAGE_ACCEPTOR)
.option(ChannelOption.SO_BACKLOG, 10)
.handler(new LoggingHandler(LogLevel.INFO))
.childHandler(new ChannelInitializer() {
@Override
public void initChannel(final UdtChannel ch)
throws Exception {
ch.pipeline().addLast(
new LoggingHandler(LogLevel.INFO),
new MsgEchoServerHandler());
}
});
// Start the server.
final ChannelFuture future = boot.bind(PORT).sync();
// Wait until the server socket is closed.
future.channel().closeFuture().sync();
} finally {
// Shut down all event loops to terminate all threads.
acceptGroup.shutdownGracefully();
connectGroup.shutdownGracefully();
}
}
}