com.zhuika.server.DiscardServer.java Source code

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Here is the source code for com.zhuika.server.DiscardServer.java

Source

package com.zhuika.server;

/*
 * 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.
 */

import java.util.concurrent.TimeUnit;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
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.codec.DelimiterBasedFrameDecoder;
import io.netty.handler.timeout.IdleStateHandler;

import org.apache.log4j.Logger;
import org.apache.log4j.PropertyConfigurator;

import com.zhuika.entity.Config;
import com.zhuika.util.XMLReader;

/*
 * Netty 4ByteBuf
 * Java jemalloc Facebook
 * Netty
 * GC
 * 
 * Netty
 * .option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
 * 
 * retain()release()
 * 
 * ByteBufReferenceCountUtil.release(msg)
 * ByteBuf
 */

/**
 * Discards any incoming data.
 * 
 */
public final class DiscardServer {

    //static final int PORT = Integer.parseInt(System.getProperty("port", "8888"));

    public static void main(String[] args) throws Exception {

        PropertyConfigurator.configure("log4j.properties");

        Logger logger = Logger.getLogger(DiscardServer.class); // Server

        logger.info("begin to start TCP server...");

        DiscardServer.run();
    }

    protected static void run() throws Exception {

        EventLoopGroup bossGroup = new NioEventLoopGroup(1);
        EventLoopGroup workerGroup = new NioEventLoopGroup();
        try {
            ServerBootstrap b = new ServerBootstrap();
            b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                    /*
                     * AdaptiveRecvByteBufAllocator
                     * Channel
                     * 
                     * 2
                     * AdaptiveRecvByteBufAllocator
                     */
                    //.option(ChannelOption.RCVBUF_ALLOCATOR, AdaptiveRecvByteBufAllocator.DEFAULT)
                    //.handler(new LoggingHandler(LogLevel.INFO))
                    .childHandler(new ChannelInitializer<SocketChannel>() {
                        @Override
                        public void initChannel(SocketChannel ch) {
                            ChannelPipeline p = ch.pipeline();
                            p.addLast(new IdleStateHandler(0, 0, 150, TimeUnit.SECONDS));
                            p.addLast("framer",
                                    new DelimiterBasedFrameDecoder(8192, false, Delimiters.lineDelimiter()));
                            p.addLast(new ByteToMessageDec());
                            p.addLast(new MessageToByteEnc());
                            p.addLast(ServiceHandlerFactory.getDiscardServerHandler());
                        }
                    });

            Logger logger = Logger.getLogger(DiscardServer.class); // Server
            Config config = XMLReader.loadconfig();
            String socketip = config.socketip;
            String socketport = config.socketport;

            // Bind and start to accept incoming connections.
            //            ChannelFuture f = b.bind(PORT).sync();
            ChannelFuture f = b.bind(socketip, Integer.parseInt(socketport)).sync();

            logger.info("TCP server started successfully");

            // Wait until the server socket is closed.
            // In this example, this does not happen, but you can do that to gracefully
            // shut down your server.
            f.channel().closeFuture().sync();
        } finally {
            workerGroup.shutdownGracefully();
            bossGroup.shutdownGracefully();
        }
    }
}