main.java.ch.epfl.lpd.ServerThread.java Source code

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Here is the source code for main.java.ch.epfl.lpd.ServerThread.java

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/*
* 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 main.java.ch.epfl.lpd;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
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.codec.Delimiters;
import io.netty.handler.codec.string.StringDecoder;
import io.netty.handler.codec.string.StringEncoder;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;
import io.netty.handler.ssl.SslContext;
import io.netty.handler.ssl.SslContextBuilder;
import io.netty.handler.ssl.util.SelfSignedCertificate;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Echoes back any received data from a client.
 */
public class ServerThread extends Thread {

    static final boolean SSL = System.getProperty("ssl") != null;
    static int PORT;

    public static Logger logger = LoggerFactory.getLogger(ServerThread.class);

    public ServerThread(String p) {
        PORT = Integer.parseInt(System.getProperty("port", p));
    }

    public void run() {
        // Configure SSL.
        final SslContext sslCtx;
        if (SSL) {
            SelfSignedCertificate ssc;
            try {
                ssc = new SelfSignedCertificate();
                sslCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey()).build();
            } catch (Exception e) {
                // TODO Auto-generated catch block
                logger.error("Got exception", e);
            }
        } else {
            sslCtx = null;
        }

        // Configure the server.
        EventLoopGroup bossGroup = new NioEventLoopGroup(1);
        EventLoopGroup workerGroup = new NioEventLoopGroup();
        try {
            ServerBootstrap b = new ServerBootstrap();
            b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                    .option(ChannelOption.SO_BACKLOG, 100).handler(new LoggingHandler(LogLevel.INFO))
                    .childHandler(new ChannelInitializer<SocketChannel>() {
                        @Override
                        public void initChannel(SocketChannel ch) throws Exception {
                            ChannelPipeline p = ch.pipeline();
                            /*
                            if (sslCtx != null) {
                               p.addLast(sslCtx.newHandler(ch.alloc()));
                            }
                            */
                            p.addLast("framer", new DelimiterBasedFrameDecoder(8192, Delimiters.lineDelimiter()));
                            p.addLast("decoder", new StringDecoder());
                            p.addLast("encoder", new StringEncoder());
                            //p.addLast(new LoggingHandler(LogLevel.INFO));
                            p.addLast(new ServerHandler());
                        }
                    });

            // Start the server.
            ChannelFuture f;
            try {
                f = b.bind(PORT).sync();
                // Wait until the server socket is closed.
                f.channel().closeFuture().sync();
            } catch (Exception e) {
                // TODO Auto-generated catch block
                logger.error("Got exception", e);
            }

        } finally {
            // Shut down all event loops to terminate all threads.
            bossGroup.shutdownGracefully();
            workerGroup.shutdownGracefully();
        }
    }
}