Example usage for io.netty.channel ChannelInitializer ChannelInitializer

List of usage examples for io.netty.channel ChannelInitializer ChannelInitializer

  1. HOME
  2. Java
  3. io.netty
  4. io.netty.channel.*
  5. ChannelInitializer
  6. ChannelInitializer

Introduction

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

Prototype

ChannelInitializer

Source Link

Usage

From source file:com.digitalpetri.modbus.slave.ModbusTcpSlave.java

License:Apache License

public CompletableFuture<ModbusTcpSlave> bind(String host, int port) {
    CompletableFuture<ModbusTcpSlave> bindFuture = new CompletableFuture<>();

    ServerBootstrap bootstrap = new ServerBootstrap();

    ChannelInitializer<SocketChannel> initializer = new ChannelInitializer<SocketChannel>() {
        @Override/* w ww .j  a  v  a  2  s.c  om*/
        protected void initChannel(SocketChannel channel) throws Exception {
            channelCounter.inc();
            logger.info("channel initialized: {}", channel);

            channel.pipeline().addLast(new LoggingHandler(LogLevel.TRACE));
            channel.pipeline()
                    .addLast(new ModbusTcpCodec(new ModbusResponseEncoder(), new ModbusRequestDecoder()));
            channel.pipeline().addLast(new ModbusTcpSlaveHandler(ModbusTcpSlave.this));

            channel.closeFuture().addListener(future -> channelCounter.dec());
        }
    };

    config.getBootstrapConsumer().accept(bootstrap);

    bootstrap.group(config.getEventLoop()).channel(NioServerSocketChannel.class)
            .handler(new LoggingHandler(LogLevel.DEBUG)).childHandler(initializer)
            .option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);

    bootstrap.bind(host, port).addListener((ChannelFuture future) -> {
        if (future.isSuccess()) {
            Channel channel = future.channel();
            serverChannels.put(channel.localAddress(), channel);
            bindFuture.complete(ModbusTcpSlave.this);
        } else {
            bindFuture.completeExceptionally(future.cause());
        }
    });

    return bindFuture;
}

From source file:com.digitalpetri.opcua.stack.client.UaTcpStackClient.java

License:Apache License

public static CompletableFuture<ClientSecureChannel> bootstrap(UaTcpStackClient client,
        Optional<ClientSecureChannel> existingChannel) {

    CompletableFuture<ClientSecureChannel> handshake = new CompletableFuture<>();

    Bootstrap bootstrap = new Bootstrap();

    bootstrap.group(client.getConfig().getEventLoop()).channel(NioSocketChannel.class)
            .option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
            .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 5000).option(ChannelOption.TCP_NODELAY, true)
            .handler(new ChannelInitializer<SocketChannel>() {
                @Override/*from  ww w.j  av a 2s.co m*/
                protected void initChannel(SocketChannel channel) throws Exception {
                    UaTcpClientAcknowledgeHandler acknowledgeHandler = new UaTcpClientAcknowledgeHandler(client,
                            existingChannel, handshake);

                    channel.pipeline().addLast(acknowledgeHandler);
                }
            });

    try {
        URI uri = URI.create(client.getEndpointUrl());

        bootstrap.connect(uri.getHost(), uri.getPort()).addListener((ChannelFuture f) -> {
            if (!f.isSuccess()) {
                handshake.completeExceptionally(f.cause());
            }
        });
    } catch (Throwable t) {
        UaException failure = new UaException(StatusCodes.Bad_TcpEndpointUrlInvalid,
                "endpoint URL invalid: " + client.getEndpointUrl());

        handshake.completeExceptionally(failure);
    }

    return handshake;
}

From source file:com.digitalpetri.opcua.stack.server.tcp.SocketServer.java

License:Apache License

private SocketServer(InetSocketAddress address) {
    this.address = address;

    bootstrap.group(Stack.sharedEventLoop()).handler(new LoggingHandler(SocketServer.class))
            .channel(NioServerSocketChannel.class)
            .childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
            .childOption(ChannelOption.TCP_NODELAY, true).childHandler(new ChannelInitializer<SocketChannel>() {
                @Override//w w w.  jav a  2  s.c o m
                protected void initChannel(SocketChannel channel) throws Exception {
                    channel.pipeline().addLast(new UaTcpServerHelloHandler(SocketServer.this));
                }
            });
}

From source file:com.dingwang.netty.client.DiscardClient.java

License:Open Source License

public void run() {
    EventLoopGroup workerGroup = new NioEventLoopGroup();

    //BootStrapServerBootstrap,???channel?channel
    Bootstrap b = new Bootstrap();

    //?EventLoopGroup?bossworkder
    //??boss/*from  w  w  w .  ja v  a  2s  .  c  o  m*/
    b.group(workerGroup);

    //NioServerSocketChannelNioSocketChannel,channel
    b.channel(NioSocketChannel.class);

    //??ServerBootstrap?childOption()SocketChannelchannel
    b.option(ChannelOption.SO_KEEPALIVE, true);
    b.handler(new ChannelInitializer<SocketChannel>() {

        @Override
        protected void initChannel(SocketChannel ch) throws Exception {
            ch.pipeline().addLast(new TimeDecoder(), new TimeClientHandler());
        }
    });

    ChannelFuture f;
    try {
        //connect()bind()
        f = b.connect(host, port).sync();
        f.channel().writeAndFlush("dddddd");
        f.channel().closeFuture().sync();
    } catch (InterruptedException e) {
        e.printStackTrace();
    } finally {
        workerGroup.shutdownGracefully();
    }
}

From source file:com.dingwang.netty.client.PersonClient.java

License:Open Source License

public void run() {
    EventLoopGroup workerGroup = new NioEventLoopGroup(10);

    //BootStrapServerBootstrap,???channel?channel
    Bootstrap b = new Bootstrap();

    //?EventLoopGroup?bossworkder
    //??boss// w w  w . j  av  a 2  s  .c  o  m
    b.group(workerGroup);

    //NioServerSocketChannelNioSocketChannel,channel
    b.channel(NioSocketChannel.class);

    //??ServerBootstrap?childOption()SocketChannelchannel
    b.option(ChannelOption.SO_KEEPALIVE, true);
    b.handler(new ChannelInitializer<SocketChannel>() {

        @Override
        protected void initChannel(SocketChannel ch) throws Exception {
            ch.pipeline().addLast(new PersonEncoder(), new PersonDecoder(), new PersonInHandler());
        }
    });

    ChannelFuture f;
    try {
        //connect()bind()
        f = b.connect(host, port).sync();
        ChannelPool.setChannel(f.channel());
        //            Person p = new Person();
        //            p.setAge(10);
        //            p.setName("dw");
        //            f.channel().writeAndFlush(p);

        //            Thread.currentThread().sleep(1000);
        //
        //            p.setName("test");
        //            f.channel().writeAndFlush(p);
        //            f.channel().closeFuture().sync();
    } catch (InterruptedException e) {
        e.printStackTrace();
    } finally {
        //            workerGroup.shutdownGracefully();
    }
}

From source file:com.dingwang.netty.server.DiscardServer.java

License:Open Source License

public void run() {
    //NioEventLoopGroup ??I/O?Netty????EventLoopGroup
    //????????2NioEventLoopGroup
    //???boss?????worker???
    //boss?worker???
    //Channels??EventLoopGroup???
    EventLoopGroup bossGroup = new NioEventLoopGroup(5);
    EventLoopGroup workerGroup = new NioEventLoopGroup(20);

    //ServerBootstrap ?NIO????Channel??
    //????//w  w  w  . java  2  s.  com
    ServerBootstrap b = new ServerBootstrap();

    //NioServerSocketChannel?Channel?
    b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
            //?????ChannelChannelInitializer?
            //?Channel?DiscardServerHandle??
            //ChannelChannelPipeline???????
            //?pipline??????
            .childHandler(new ChannelInitializer<SocketChannel>() {

                @Override
                protected void initChannel(SocketChannel ch) throws Exception {
                    ch.pipeline().addLast(new TimeEncoder(), new DiscardServerHandler());

                }
            })
            //????TCP/IP??socket?
            //tcpNoDelaykeepAlive?ChannelOptionChannelConfig??
            //ChannelOptions
            .option(ChannelOption.SO_BACKLOG, 128)
            //option()childOption()?option()??NioServerSocketChannel??
            //childOption()???ServerChannel?NioServerSocketChannel
            .childOption(ChannelOption.SO_KEEPALIVE, true);

    try {
        //?????8080?
        //?bind()(???)
        ChannelFuture f = b.bind(port).sync();
        f.channel().closeFuture().sync();

    } catch (InterruptedException e) {
        e.printStackTrace();
    } finally {
        workerGroup.shutdownGracefully();
        bossGroup.shutdownGracefully();
    }

}

From source file:com.dingwang.netty.server.PersonServer.java

License:Open Source License

public void run() {
    //NioEventLoopGroup ??I/O?Netty????EventLoopGroup
    //????????2NioEventLoopGroup
    //???boss?????worker???
    //boss?worker???
    //Channels??EventLoopGroup???
    EventLoopGroup bossGroup = new NioEventLoopGroup(5);
    EventLoopGroup workerGroup = new NioEventLoopGroup(20);

    //ServerBootstrap ?NIO????Channel??
    //????/*from   w w w.j  ava2s  .com*/
    ServerBootstrap b = new ServerBootstrap();

    //NioServerSocketChannel?Channel?
    b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
            //?????ChannelChannelInitializer?
            //?Channel?DiscardServerHandle??
            //ChannelChannelPipeline???????
            //?pipline??????
            .childHandler(new ChannelInitializer<SocketChannel>() {

                @Override
                protected void initChannel(SocketChannel ch) throws Exception {
                    ch.pipeline().addLast(new PersonDecoder(), new PersonEncoder(), new PersonOutHandler());

                }
            })
            //????TCP/IP??socket?
            //tcpNoDelaykeepAlive?ChannelOptionChannelConfig??
            //ChannelOptions
            .option(ChannelOption.SO_BACKLOG, 128)
            //option()childOption()?option()??NioServerSocketChannel??
            //childOption()???ServerChannel?NioServerSocketChannel
            .childOption(ChannelOption.SO_KEEPALIVE, true);

    try {
        //?????8080?
        //?bind()(???)
        ChannelFuture f = b.bind(port).sync();
        f.channel().closeFuture().sync();

    } catch (InterruptedException e) {
        e.printStackTrace();
    } finally {
        workerGroup.shutdownGracefully();
        bossGroup.shutdownGracefully();
    }

}

From source file:com.dingwang.rpc.client.RpcClient.java

License:Open Source License

public RpcResponse send(RpcRequest request) throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {/*from ww  w .  j  a va  2  s. c  o m*/
        Bootstrap bootstrap = new Bootstrap();
        bootstrap.group(group).channel(NioSocketChannel.class).handler(new ChannelInitializer<SocketChannel>() {
            @Override
            public void initChannel(SocketChannel channel) throws Exception {
                channel.pipeline().addLast(new RpcEncoder(RpcRequest.class)) //  RPC ???
                        .addLast(new RpcDecoder(RpcResponse.class)) //  RPC ????
                        .addLast(RpcClient.this); //  RpcClient ?? RPC 
            }
        }).option(ChannelOption.SO_KEEPALIVE, true);

        ChannelFuture future = bootstrap.connect(host, port).sync();
        future.channel().writeAndFlush(request).sync();

        synchronized (obj) {
            obj.wait(); // ?
        }

        if (response != null) {
            future.channel().closeFuture().sync();
        }
        return response;
    } finally {
        group.shutdownGracefully();
    }
}

From source file:com.dingwang.rpc.server.RpcServer.java

License:Open Source License

@Override
public void afterPropertiesSet() throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {//from   w ww .  j  a v a2 s.  com
        ServerBootstrap bootstrap = new ServerBootstrap();
        bootstrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel channel) throws Exception {
                        channel.pipeline().addLast(new RpcDecoder(RpcRequest.class)) //  RPC ??
                                .addLast(new RpcEncoder(RpcResponse.class)) //  RPC ???
                                //                                    .addLast(new ProviderProxy()); // ? RPC 
                                .addLast(new RpcHandler(handlerMap));
                    }
                }).option(ChannelOption.SO_BACKLOG, 128).childOption(ChannelOption.SO_KEEPALIVE, true);

        String[] array = serverAddress.split(":");
        String host = array[0];
        int port = Integer.parseInt(array[1]);

        ChannelFuture future = bootstrap.bind(host, port).sync();
        LOGGER.debug("server started on port {}", port);

        if (serviceRegistry != null) {
            serviceRegistry.register(serverAddress); // ??
        }

        future.channel().closeFuture().sync();
    } finally {
        workerGroup.shutdownGracefully();
        bossGroup.shutdownGracefully();
    }

}

From source file:com.dinstone.jrpc.transport.netty4.NettyAcceptance.java

License:Apache License

@Override
public Acceptance bind() {
    bossGroup = new NioEventLoopGroup(1, new DefaultThreadFactory("N4A-Boss"));
    workGroup = new NioEventLoopGroup(transportConfig.getNioProcessorCount(),
            new DefaultThreadFactory("N4A-Work"));

    ServerBootstrap boot = new ServerBootstrap().group(bossGroup, workGroup);
    boot.channel(NioServerSocketChannel.class).childHandler(new ChannelInitializer<SocketChannel>() {

        @Override//from  w  w  w  .j  a va  2s.c om
        public void initChannel(SocketChannel ch) throws Exception {
            TransportProtocolDecoder decoder = new TransportProtocolDecoder();
            decoder.setMaxObjectSize(transportConfig.getMaxSize());
            TransportProtocolEncoder encoder = new TransportProtocolEncoder();
            encoder.setMaxObjectSize(transportConfig.getMaxSize());
            ch.pipeline().addLast("TransportProtocolDecoder", decoder);
            ch.pipeline().addLast("TransportProtocolEncoder", encoder);

            int intervalSeconds = transportConfig.getHeartbeatIntervalSeconds();
            ch.pipeline().addLast("IdleStateHandler", new IdleStateHandler(intervalSeconds * 2, 0, 0));
            ch.pipeline().addLast("NettyServerHandler", new NettyServerHandler());
        }
    });
    boot.option(ChannelOption.SO_REUSEADDR, true).option(ChannelOption.SO_BACKLOG, 128);
    boot.childOption(ChannelOption.SO_RCVBUF, 16 * 1024).childOption(ChannelOption.SO_SNDBUF, 16 * 1024)
            .childOption(ChannelOption.TCP_NODELAY, true);

    try {
        boot.bind(serviceAddress).sync();

        int processorCount = transportConfig.getBusinessProcessorCount();
        if (processorCount > 0) {
            NamedThreadFactory threadFactory = new NamedThreadFactory("N4A-BusinessProcessor");
            executorService = Executors.newFixedThreadPool(processorCount, threadFactory);
        }
    } catch (Exception e) {
        throw new RuntimeException("can't bind service on " + serviceAddress, e);
    }
    LOG.info("netty acceptance bind on {}", serviceAddress);

    return this;
}