Java tutorial
/* * 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 org.msrpenabler.server.net; import java.io.IOException; import org.msrpenabler.server.cnx.MsrpAddrServer; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import io.netty.bootstrap.ServerBootstrap; import io.netty.channel.Channel; import io.netty.channel.ChannelFuture; import io.netty.channel.ChannelFutureListener; import io.netty.channel.ChannelInitializer; import io.netty.channel.ChannelOption; import io.netty.channel.EventLoopGroup; import io.netty.channel.nio.NioEventLoopGroup; import io.netty.channel.socket.SocketChannel; import io.netty.channel.socket.nio.NioServerSocketChannel; import io.netty.handler.logging.LogLevel; import io.netty.handler.logging.LoggingHandler; /** * Echoes back any received data from a client. */ public class NioMsrpSockServerBootStrap { private static final Logger logger = LoggerFactory.getLogger(NioMsrpSockServerBootStrap.class); private final MsrpAddrServer addrServ; private ChannelFuture futureBind = null; EventLoopGroup bossGroup = new NioEventLoopGroup(); EventLoopGroup workerGroup = new NioEventLoopGroup(); public NioMsrpSockServerBootStrap(MsrpAddrServer addrServ) { this.addrServ = addrServ; } public void run() throws Exception { // Configure the server. ServerBootstrap b = new ServerBootstrap(); b = b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class) .option(ChannelOption.SO_BACKLOG, 500) // maximum queue length sock waiting to be accepted .handler(new LoggingHandler(LogLevel.INFO)).childHandler(new ChannelInitializer<SocketChannel>() { // Create a new socket / channel / pipeline for each new Cnx @Override public void initChannel(SocketChannel ch) throws Exception { ch.pipeline().addLast(new LoggingHandler(LogLevel.DEBUG)); ch.pipeline().addLast(new NioMsrpMsgDecoder()); ch.pipeline().addLast(new NioMsrpMsgEncoder()); ch.pipeline().addLast("msrpHandler", new MsgRcvHandler(addrServ)); } }); // Start the server. futureBind = b.bind(addrServ.inetAddr, addrServ.port); futureBind.addListener(new ChannelFutureListener() { public void operationComplete(ChannelFuture future) { if (future.isSuccess()) { logger.info(" Bind success on {}:{}", addrServ.inetAddr, addrServ.port); } else { logger.error(" Bind failed on {}:{}", addrServ.inetAddr, addrServ.port, future.cause()); } } }); } public void waitEndChannelBind() throws InterruptedException { // Wait until the server socket is closed. logger.info("waitEndChannelBind "); futureBind.channel().closeFuture().sync(); } public Channel getChannelBind() { if (futureBind != null) { return futureBind.channel(); } return null; } public void shutDown() throws IOException { // Shut down all event loops to terminate all threads. workerGroup.shutdownGracefully(); bossGroup.shutdownGracefully(); } }