Example usage for io.netty.channel ChannelInitializer ChannelInitializer

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

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Introduction

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

Prototype

ChannelInitializer

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Usage

From source file:UdpServer.java

License:Open Source License

public void run() throws Exception {
    final NioEventLoopGroup group = new NioEventLoopGroup();
    //Create Actor System
    final ActorSystem system = ActorSystem.create("CapwapFSMActorSystem");
    final ActorRef PacketProcessorActor = system
            .actorOf(Props.create(CapwapMsgProcActor.class, "MessageProcessorActor"), "MessageProcessorActor");
    try {// w w  w.ja v  a2  s.c  o m
        final Bootstrap b = new Bootstrap();
        b.group(group).channel(NioDatagramChannel.class).option(ChannelOption.SO_BROADCAST, true)
                .handler(new ChannelInitializer<NioDatagramChannel>() {
                    @Override
                    public void initChannel(final NioDatagramChannel ch) throws Exception {

                        ChannelPipeline p = ch.pipeline();
                        createActorAndHandler(p);
                        //p.addLast(new IncommingPacketHandler(PacketProcessorActor));
                    }
                });

        // Bind and start to accept incoming connections.
        Integer pPort = port;
        InetAddress address = InetAddress.getLoopbackAddress();
        System.out.printf("\n\nwaiting for message %s %s\n\n", String.format(pPort.toString()),
                String.format(address.toString()));
        b.bind(address, port).sync().channel().closeFuture().await();

    } finally {
        System.out.print("In Server Finally");
    }
}

From source file:NettyServer.java

License:Open Source License

void start() throws Exception {
    parentGroup = new NioEventLoopGroup(1);
    childGroup = new NioEventLoopGroup();

    ServerBootstrap bootstrap = new ServerBootstrap().group(parentGroup, childGroup)
            .channel(NioServerSocketChannel.class).childHandler(new ChannelInitializer<SocketChannel>() {
                @Override/*from  w  w  w . jav  a  2 s  .c  o  m*/
                protected void initChannel(SocketChannel channel) throws Exception {
                    ChannelPipeline pipeline = channel.pipeline();

                    pipeline.addLast("lineFrame", new LineBasedFrameDecoder(256));
                    pipeline.addLast("decoder", new StringDecoder());
                    pipeline.addLast("encoder", new StringEncoder());

                    pipeline.addLast("handler", new ChannelInboundHandlerAdapter() {
                        @Override
                        public void channelActive(ChannelHandlerContext ctx) throws Exception {
                            Channel channel = ctx.channel();
                            channelActiveHandler.accept(channel);
                        }

                        @Override
                        public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                            messageConsumer.accept(msg);
                        }
                    });
                }
            });
    channel = bootstrap.bind(port).channel();
    System.out.println("NettyServer started");
}

From source file:FSMTester.java

License:Open Source License

public void run() throws Exception {
    final NioEventLoopGroup group = new NioEventLoopGroup();
    //Create Actor System
    final ActorSystem system = ActorSystem.create("CapwapFSMActorSystem");
    final ActorRef PacketProcessorActor = system
            .actorOf(Props.create(CapwapMsgProcActor.class, "MessageProcessorActor"), "MessageProcessorActor");
    try {//from ww w. j  a  v  a  2s  . c om
        final Bootstrap b = new Bootstrap();
        b.group(group).channel(NioDatagramChannel.class).option(ChannelOption.SO_BROADCAST, true)
                .handler(new ChannelInitializer<NioDatagramChannel>() {
                    @Override
                    public void initChannel(final NioDatagramChannel ch) throws Exception {

                        ChannelPipeline p = ch.pipeline();
                        p.addLast(new IncommingPacketFSMHandler(PacketProcessorActor));
                    }
                });

        // Bind and start to accept incoming connections.
        Integer pPort = port;
        InetAddress address = InetAddress.getLoopbackAddress();
        System.out.printf("\n\nwaiting for message %s %s\n\n", String.format(pPort.toString()),
                String.format(address.toString()));
        b.bind(address, port).sync().channel().closeFuture().await();

    } finally {
        System.out.print("In Server Finally");
    }
}

From source file:afred.javademo.proxy.rpc.ObjectEchoClient.java

License:Apache License

public void start(String host, int port) throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {/*from   www .j  av  a 2 s  . com*/
        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 ObjectEncoder(), new ObjectDecoder(ClassResolvers.cacheDisabled(null)),
                        new ObjectEchoClientHandler());
            }
        });

        channel = b.connect(host, port).sync().channel();
    } finally {

    }
}

From source file:afred.javademo.proxy.rpc.ObjectEchoServer.java

License:Apache License

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

    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*w ww .j  a  v a 2 s.c  o  m*/
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline p = ch.pipeline();
                        p.addLast(new ObjectEncoder(), new ObjectDecoder(ClassResolvers.cacheDisabled(null)),
                                new ObjectEchoServerHandler());
                    }
                });

        // Bind and start to accept incoming connections.
        b.bind(8080).sync().channel().closeFuture().sync();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

From source file:alluxio.client.netty.NettyClient.java

License:Apache License

/**
 * Creates and returns a new Netty client bootstrap for clients to connect to remote servers.
 *
 * @param handler the handler that should be added to new channel pipelines
 * @return the new client {@link Bootstrap}
 *///from   w  ww.  j  a v  a 2 s  . c om
public static Bootstrap createClientBootstrap(final ClientHandler handler) {
    final Bootstrap boot = new Bootstrap();

    boot.group(WORKER_GROUP).channel(CLIENT_CHANNEL_CLASS);
    boot.option(ChannelOption.SO_KEEPALIVE, true);
    boot.option(ChannelOption.TCP_NODELAY, true);
    boot.option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);

    boot.handler(new ChannelInitializer<SocketChannel>() {
        @Override
        public void initChannel(SocketChannel ch) throws Exception {
            ChannelPipeline pipeline = ch.pipeline();

            pipeline.addLast(RPCMessage.createFrameDecoder());
            pipeline.addLast(ENCODER);
            pipeline.addLast(DECODER);
            pipeline.addLast(handler);
        }
    });

    return boot;
}

From source file:alluxio.network.netty.NettyClient.java

License:Apache License

/**
 * Creates and returns a new Netty client bootstrap for clients to connect to remote servers.
 *
 * @param address the socket address/*from  www. j  a  v a2  s  .  c o  m*/
 * @return the new client {@link Bootstrap}
 */
public static Bootstrap createClientBootstrap(SocketAddress address) {
    final Bootstrap boot = new Bootstrap();

    boot.group(WORKER_GROUP).channel(
            NettyUtils.getClientChannelClass(NettyUtils.CHANNEL_TYPE, !(address instanceof InetSocketAddress)));
    boot.option(ChannelOption.SO_KEEPALIVE, true);
    boot.option(ChannelOption.TCP_NODELAY, true);
    boot.option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
    if (NettyUtils.CHANNEL_TYPE == ChannelType.EPOLL) {
        boot.option(EpollChannelOption.EPOLL_MODE, EpollMode.LEVEL_TRIGGERED);
    }

    // After 10 missed heartbeat attempts and no write activity, the server will close the channel.
    final long timeoutMs = Configuration.getMs(PropertyKey.NETWORK_NETTY_HEARTBEAT_TIMEOUT_MS);
    final long heartbeatPeriodMs = Math.max(timeoutMs / 10, 1);
    boot.handler(new ChannelInitializer<Channel>() {
        @Override
        public void initChannel(Channel ch) throws Exception {
            ChannelPipeline pipeline = ch.pipeline();

            pipeline.addLast(RPCMessage.createFrameDecoder());
            pipeline.addLast(ENCODER);
            pipeline.addLast(DECODER);
            pipeline.addLast(new IdleStateHandler(0, heartbeatPeriodMs, 0, TimeUnit.MILLISECONDS));
            pipeline.addLast(new IdleWriteHandler());
        }
    });

    return boot;
}

From source file:at.yawk.accordion.netty.NettyServer.java

License:Mozilla Public License

/**
 * Initialize this server so connections can be accepted (does not bind!).
 *//* w w  w.  j  ava  2  s. co  m*/
void init() {
    bootstrap.childHandler(new ChannelInitializer<SocketChannel>() {
        @Override
        protected void initChannel(SocketChannel ch) throws Exception {
            NettyConnection connection = new NettyConnection(ch);
            connection.init();
            connectionHandler.accept(connection);
        }
    });
}

From source file:at.yawk.dbus.protocol.DbusConnector.java

public DbusConnector() {
    bootstrap = new Bootstrap();
    bootstrap.handler(new ChannelInitializer<Channel>() {
        @Override//from w w  w .jav  a2 s  .c  om
        protected void initChannel(Channel ch) throws Exception {
            ch.config().setAutoRead(false);
        }
    });
}

From source file:at.yawk.dbus.protocol.DbusConnectorTest.java

@Test(enabled = false)
public void testServer() throws Exception {
    ServerBootstrap bootstrap = new ServerBootstrap();
    bootstrap.channel(EpollServerDomainSocketChannel.class);
    bootstrap.group(new EpollEventLoopGroup());
    bootstrap.childHandler(new ChannelInitializer<Channel>() {
        @Override//from  w w w  . ja  v a2  s . c  om
        protected void initChannel(Channel ch) throws Exception {

            ch.pipeline().addLast(new CommandCodec()).addLast(new ChannelDuplexHandler() {
                @Override
                public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                    if (msg instanceof NegotiateUnixFd) {
                        ch.writeAndFlush(new Error("error"));
                    }

                    if (msg instanceof Begin) {
                        ch.pipeline().addLast(new LoggingInboundAdapter())
                                .addLast(new DbusMainProtocol(new MessageConsumer() {
                                    @Override
                                    public boolean requireAccept(MessageHeader header) {
                                        return true;
                                    }

                                    @Override
                                    public void accept(DbusMessage message) {
                                        DbusMessage response = new DbusMessage();

                                        MessageHeader header = new MessageHeader();
                                        header.setMessageType(MessageType.ERROR);
                                        header.addHeader(HeaderField.REPLY_SERIAL,
                                                BasicObject.createUint32(message.getHeader().getSerial()));
                                        //header.addHeader(HeaderField.SIGNATURE, SignatureObject.create(
                                        //        Collections.singletonList(BasicType.VARIANT)));
                                        header.addHeader(HeaderField.ERROR_NAME,
                                                BasicObject.createString("Error"));
                                        response.setHeader(header);

                                        MessageBody body = new MessageBody();
                                        //body.add(VariantObject.create(BasicObject.createString("testing!")));
                                        response.setBody(body);

                                        ch.writeAndFlush(response);
                                    }
                                }));
                        ch.pipeline().remove((Class) getClass());
                        ch.pipeline().remove(CommandCodec.class);
                    }
                }
            });
            ch.writeAndFlush(new Ok(UUID.randomUUID()));
        }
    });
    bootstrap.bind(new DomainSocketAddress(new File("test")));

    try {
        DbusUtil.callCommand(("dbus-send --address=unix:path=" + new File(".").getAbsolutePath()
                + "/test --dest=org.freedesktop.UPower --print-reply "
                + "/org/freedesktop/UPower/devices/DisplayDevice org.freedesktop.DBus.Properties.Get string:org"
                + ".freedesktop.UPower.Device string:State").split(" "));
    } catch (Exception e) {
        e.printStackTrace();
    }
    TimeUnit.DAYS.sleep(1);
}