Java tutorial
/* * Copyright (c) 2015 Huawei, Inc and others. All rights reserved. * * This program and the accompanying materials are made available under the * terms of the Eclipse Public License v1.0 which accompanies this distribution, * and is available at http://www.eclipse.org/legal/epl-v10.html */ package org.opendaylight.usc.test.plugin; import org.opendaylight.usc.manager.UscConfigurationServiceImpl; import org.opendaylight.usc.manager.api.UscSecureService; import org.opendaylight.usc.util.UscServiceUtils; 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.logging.LogLevel; import io.netty.handler.logging.LoggingHandler; /** * TCP echo server. */ public class EchoServerTcp implements Runnable, AutoCloseable { static int PORT = Integer.parseInt(System.getProperty("port", "2007")); EventLoopGroup bossGroup = new NioEventLoopGroup(1); EventLoopGroup workerGroup = new NioEventLoopGroup(); ServerBootstrap b = new ServerBootstrap(); private UscSecureService secureService = null; public EchoServerTcp(final boolean enableEncryption) { this(enableEncryption, PORT); } public EchoServerTcp(final boolean enableEncryption, int port) { PORT = port; UscConfigurationServiceImpl.setDefaultPropertyFilePath("src/test/resources/etc/usc/usc.properties"); secureService = UscServiceUtils.getService(UscSecureService.class); b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class).option(ChannelOption.SO_BACKLOG, 100) .handler(new LoggingHandler("EchoServerTcp server handler", LogLevel.TRACE)) .childHandler(new ChannelInitializer<SocketChannel>() { @Override public void initChannel(SocketChannel ch) throws Exception { ChannelPipeline p = ch.pipeline(); if (enableEncryption) { p.addLast(new LoggingHandler("EchoServerTcp Handler 3", LogLevel.TRACE)); p.addLast(secureService.getTcpServerHandler(ch)); } p.addLast(new LoggingHandler("EchoServerTcp Handler 2", LogLevel.TRACE)); p.addLast(new EchoServerTcpHandler()); p.addLast(new LoggingHandler("EchoServerTcp Handler 1", LogLevel.TRACE)); } }); } @Override public void run() { // Start the server. try { ChannelFuture f = b.bind(PORT).sync(); // Wait until the server socket is closed. f.channel().closeFuture().sync(); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } @Override public void close() throws Exception { bossGroup.shutdownGracefully(); workerGroup.shutdownGracefully(); } public static void main(String[] args) throws Exception { if (args.length > 0) { try { int port = Integer.parseInt(args[0]); PORT = port; } catch (NumberFormatException e) { System.err.println("Argument " + args[0] + " must be an integer (port #)."); System.exit(1); } } try (EchoServerTcp server = new EchoServerTcp(false)) { server.run(); } } }