Example usage for io.netty.channel EventLoopGroup shutdownGracefully

List of usage examples for io.netty.channel EventLoopGroup shutdownGracefully

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Introduction

In this page you can find the example usage for io.netty.channel EventLoopGroup shutdownGracefully.

Prototype

Future<?> shutdownGracefully();

Source Link

Document

Shortcut method for #shutdownGracefully(long,long,TimeUnit) with sensible default values.

Usage

From source file:com.github.brandtg.switchboard.HdfsLogIterator.java

License:Apache License

/**
 * Process listens to edit log events and prints their toString to STDOUT.
 *///from ww  w.java  2  s  .c  o  m
public static void main(String[] args) throws Exception {
    if (args.length != 2) {
        throw new Exception("usage: sourceHost:sourcePort serverPort");
    }
    String[] sourceHostPort = args[0].split(":");
    InetSocketAddress sourceAddress = new InetSocketAddress(sourceHostPort[0],
            Integer.valueOf(sourceHostPort[1]));
    InetSocketAddress serverAddress = new InetSocketAddress(Integer.valueOf(args[1]));
    PipedOutputStream outputStream = new PipedOutputStream();

    final EventLoopGroup eventLoopGroup = new NioEventLoopGroup();
    final LogReceiver logReceiver = new LogReceiver(serverAddress, eventLoopGroup, outputStream);
    final LogPuller logPuller = new LogPuller(sourceAddress, serverAddress, "*", 0);
    final ExecutorService pullerExecutor = Executors.newSingleThreadExecutor();

    Runtime.getRuntime().addShutdownHook(new Thread() {
        @Override
        public void run() {
            try {
                logPuller.shutdown();
                pullerExecutor.shutdown();
                logReceiver.shutdown();
            } catch (Exception e) {
                LOG.error("Exception while shutting down log receiver", e);
            }
            eventLoopGroup.shutdownGracefully();
        }
    });

    logReceiver.registerListener(logPuller);
    logReceiver.start();
    pullerExecutor.submit(logPuller);

    // Print edit log ops to console
    PipedInputStream inputStream = new PipedInputStream(outputStream, 1024 * 1024);
    LogIterator<FSEditLogOp> itr = new HdfsLogIterator(inputStream);
    while (itr.hasNext()) {
        System.out.println(itr.next());
    }
}

From source file:com.github.herong.rpc.netty.protobuf.demo1.ProtobufClient.java

License:Apache License

public void run() throws Exception {
    // Configure the client.
    EventLoopGroup group = new NioEventLoopGroup();
    try {/* w  ww . ja v  a  2 s .  co  m*/
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true)
                .handler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline()

                                // 
                                .addLast("frameDecoder", new ProtobufVarint32FrameDecoder())
                                // 
                                .addLast("protobufDecoder",
                                        new ProtobufDecoder(AddressBookProtos.AddressBook.getDefaultInstance()))
                                // 
                                .addLast("frameEncoder", new ProtobufVarint32LengthFieldPrepender())
                                .addLast("protobufEncoder", new ProtobufEncoder())
                                // 
                                .addLast("handler", new ProtobufClientHandler());

                    }
                });

        // Start the client.
        ChannelFuture f = b.connect(host, port).sync();

        sendMsg(f.channel());
        // Wait until the connection is closed.
        f.channel().closeFuture().sync();
    } finally {
        // Shut down the event loop to terminate all threads.
        group.shutdownGracefully();
    }
}

From source file:com.github.herong.rpc.netty.protobuf.demo1.ProtobufServer.java

License:Apache License

public void run() throws Exception {
    // Configure the server.
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*from   www .j  a  va 2s  .co m*/
        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 {
                        ch.pipeline()
                                // 
                                .addLast("frameDecoder", new ProtobufVarint32FrameDecoder())
                                // 
                                .addLast("protobufDecoder",
                                        new ProtobufDecoder(AddressBookProtos.AddressBook.getDefaultInstance()))
                                // 
                                .addLast("frameEncoder", new ProtobufVarint32LengthFieldPrepender())
                                .addLast("protobufEncoder", new ProtobufEncoder())
                                // 
                                .addLast("handler", new ProtobufServerHandler());
                    }
                });

        // Start the server.
        ChannelFuture f = b.bind(port).sync();

        // Wait until the server socket is closed.
        f.channel().closeFuture().sync();
    } finally {
        // Shut down all event loops to terminate all threads.
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

From source file:com.github.herong.rpc.netty.protobuf.demo2.Demo2ProtobufClient.java

License:Apache License

public void run() throws Exception {
    // Configure the client.
    EventLoopGroup group = new NioEventLoopGroup();
    try {//from   w  w w. j  av  a 2s.  c o m
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true)
                .handler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline()

                                // 
                                .addLast("frameDecoder", new ProtobufVarint32FrameDecoder())
                                // 
                                .addLast("protobufDecoder",
                                        new ProtobufDecoder(Message.DTO.getDefaultInstance()))
                                // 
                                .addLast("frameEncoder", new ProtobufVarint32LengthFieldPrepender())
                                .addLast("protobufEncoder", new ProtobufEncoder())
                                // 
                                .addLast("handler", new Demo2ProtobufClientHandler());

                    }
                });

        // Start the client.
        ChannelFuture f = b.connect(host, port).sync();

        sendMsg(f.channel());
        // Wait until the connection is closed.
        f.channel().closeFuture().sync();
    } finally {
        // Shut down the event loop to terminate all threads.
        group.shutdownGracefully();
    }
}

From source file:com.github.herong.rpc.netty.protobuf.demo2.Demo2ProtobufServer.java

License:Apache License

public void run() throws Exception {
    // Configure the server.
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*from   w ww. j ava2s. c om*/
        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 {
                        ch.pipeline()
                                // 
                                .addLast("frameDecoder", new ProtobufVarint32FrameDecoder())
                                // 
                                .addLast("protobufDecoder",
                                        new ProtobufDecoder(Message.DTO.getDefaultInstance()))
                                // 
                                .addLast("frameEncoder", new ProtobufVarint32LengthFieldPrepender())
                                .addLast("protobufEncoder", new ProtobufEncoder())
                                // 
                                .addLast("handler", new Demo2ProtobufServerHandler());
                    }
                });

        // Start the server.
        ChannelFuture f = b.bind(port).sync();

        // Wait until the server socket is closed.
        f.channel().closeFuture().sync();
    } finally {
        // Shut down all event loops to terminate all threads.
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

From source file:com.github.jonbonazza.puni.core.Application.java

License:Apache License

private void bootstrap() throws Exception {
    SslContext sslContext = null;/*from   ww w.  ja v  a2  s  .c  o m*/
    SSLConfiguration sslConfig = config.getSsl();
    if (config.getSsl().isEnabled()) {
        sslContext = SslContext.newServerContext(new File(sslConfig.getCert()),
                new File(sslConfig.getPrivateKey()));
    }

    EventLoopGroup eventGroup = new NioEventLoopGroup(config.getEventLoopThreadCount());

    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(eventGroup).channel(NioServerSocketChannel.class).handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new HttpInitializer(sslContext, muxer));
        Channel ch = b.bind(config.getPort()).sync().channel();
        ch.closeFuture().sync();
        bootstrapped = true;
    } finally {
        eventGroup.shutdownGracefully();
    }
}

From source file:com.github.liyp.netty.App.java

License:Apache License

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

    EventLoopGroup boss = new NioEventLoopGroup();
    EventLoopGroup worker = new NioEventLoopGroup();

    try {/*from   ww  w  .j  a va2  s  .co m*/
        ServerBootstrap b = new ServerBootstrap();
        b.group(boss, worker).channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new ReplayingDecoder() {
                            @Override
                            protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out)
                                    throws Exception {
                                short magicHeader = in.readShort();
                                logger.debug("Receive magic header: {}.", magicHeader);
                                if (magicHeader != HEADER) {
                                    logger.error("Receive illegal magic header: {}, close channel: {}.",
                                            magicHeader, ctx.channel().remoteAddress());
                                    ctx.close();
                                }

                                short dataLen = in.readShort();
                                logger.debug("Receive message data length: {}.", dataLen);
                                if (dataLen < 0) {
                                    logger.error("Data length is negative, close channel: {}.",
                                            ctx.channel().remoteAddress());
                                    ctx.close();
                                }

                                ByteBuf payload = in.readBytes(dataLen);
                                String cloudMsg = payload.toString(CharsetUtil.UTF_8);
                                logger.debug("Receive data: {}.", cloudMsg);
                                out.add(cloudMsg);
                            }
                        }).addLast(new MessageToByteEncoder<String>() {
                            @Override
                            protected void encode(ChannelHandlerContext ctx, String msg, ByteBuf out)
                                    throws Exception {
                                out.writeBytes(msg.getBytes());
                            }
                        }).addLast(new ChannelInboundHandlerAdapter() {
                            @Override
                            public void channelActive(ChannelHandlerContext ctx) throws Exception {
                                logger.info("start receive msg...");
                            }

                            @Override
                            public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                                logger.info("receive msg: {}", msg);
                                logger.info("echo msg");
                                ctx.writeAndFlush(msg);
                            }
                        });
                    }
                }).option(ChannelOption.SO_BACKLOG, 128).childOption(ChannelOption.SO_KEEPALIVE, true);
        ChannelFuture f = b.bind(PORT).sync();
        logger.info("9999");
        f.channel().closeFuture().sync();
    } finally {
        worker.shutdownGracefully();
        boss.shutdownGracefully();
    }
}

From source file:com.github.liyp.netty.HandlerChainApp.java

License:Apache License

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

    EventLoopGroup boss = new NioEventLoopGroup();
    EventLoopGroup worker = new NioEventLoopGroup();

    try {/*  www .j a va2  s  .  co  m*/
        ServerBootstrap b = new ServerBootstrap();
        b.group(boss, worker).channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new ChannelInboundHandlerAdapter() {
                            @Override
                            public void channelActive(ChannelHandlerContext ctx) throws Exception {
                                logger.info("1");
                                ctx.fireChannelActive();
                            }
                        }).addLast(new ChannelInboundHandlerAdapter() {
                            @Override
                            public void channelActive(ChannelHandlerContext ctx) throws Exception {
                                logger.info("2");
                                ctx.fireChannelActive();
                            }
                        }).addLast(new ChannelInboundHandlerAdapter() {
                            @Override
                            public void channelActive(ChannelHandlerContext ctx) throws Exception {
                                logger.info("3");
                                ctx.fireChannelActive();
                            }
                        });
                    }
                }).option(ChannelOption.SO_BACKLOG, 128).childOption(ChannelOption.SO_KEEPALIVE, true);
        ChannelFuture f = b.bind(PORT).sync();
        logger.info("9999");
        f.channel().closeFuture().sync();
    } finally {
        worker.shutdownGracefully();
        boss.shutdownGracefully();
    }
}

From source file:com.github.nettybook.ch4.EchoClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();

    try {/*w  ww .  j av a  2 s . c o  m*/
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new ChannelInitializer<SocketChannel>() {
            @Override
            public void initChannel(SocketChannel ch) throws Exception {
                ChannelPipeline p = ch.pipeline();
                p.addLast(new EchoClientHandler1());
                p.addLast(new LoggingHandler());
            }
        });

        ChannelFuture f = b.connect("localhost", 8888).sync();

        f.channel().closeFuture().sync();
    } finally {
        group.shutdownGracefully();
    }
}

From source file:com.github.nettybook.ch7.junit.TelnetServerV3.java

License:Apache License

public void start() {
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();

    try {/*from   www. j av  a 2s. com*/
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .handler(new LoggingHandler(LogLevel.INFO)).childHandler(new TelnetServerInitializerV3());

        ChannelFuture future = b.bind(address).sync();

        future.channel().closeFuture().sync();
    } catch (InterruptedException e) {
        e.printStackTrace();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}