io.netty.handler.codec.LengthFieldPrepender Java Exaples

Source File: LengthFieldPrependerTest.java From netty-4.1.22 with Apache License 2.0

6 votes

@Test
public void testPrependLengthInLittleEndian() throws Exception {
    final EmbeddedChannel ch = new EmbeddedChannel(new LengthFieldPrepender(ByteOrder.LITTLE_ENDIAN, 4, 0, false));
    ch.writeOutbound(msg);
    ByteBuf buf = ch.readOutbound();
    assertEquals(4, buf.readableBytes());
    byte[] writtenBytes = new byte[buf.readableBytes()];
    buf.getBytes(0, writtenBytes);
    assertEquals(1, writtenBytes[0]);
    assertEquals(0, writtenBytes[1]);
    assertEquals(0, writtenBytes[2]);
    assertEquals(0, writtenBytes[3]);
    buf.release();

    buf = ch.readOutbound();
    assertSame(buf, msg);
    buf.release();
    assertFalse("The channel must have been completely read", ch.finish());
}

Source File: EppModule.java From nomulus with Apache License 2.0

6 votes

/**
 * {@link Provides} the list of providers of {@link ChannelHandler}s that are used for the EPP
 * Protocol.
 */
@Provides
@EppProtocol
static ImmutableList<Provider<? extends ChannelHandler>> provideEppHandlerProviders(
    @EppProtocol Provider<SslClientInitializer<NioSocketChannel>> sslClientInitializerProvider,
    Provider<LengthFieldBasedFrameDecoder> lengthFieldBasedFrameDecoderProvider,
    Provider<LengthFieldPrepender> lengthFieldPrependerProvider,
    Provider<EppMessageHandler> eppMessageHandlerProvider,
    Provider<EppActionHandler> eppActionHandlerProvider) {
  return ImmutableList.of(
      sslClientInitializerProvider,
      lengthFieldBasedFrameDecoderProvider,
      lengthFieldPrependerProvider,
      eppMessageHandlerProvider,
      eppActionHandlerProvider);
}

Source File: TcpServer.java From krpc with MIT License

6 votes

protected static void run() throws Exception {
		ServerBootstrap b = new ServerBootstrap();
		b.group(bossGroup, workerGroup);
		b.channel(NioServerSocketChannel.class);
		b.childHandler(new ChannelInitializer<SocketChannel>() {
			@Override
			public void initChannel(SocketChannel ch) throws Exception {
				ChannelPipeline pipeline = ch.pipeline();
				pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));
				pipeline.addLast("frameEncoder", new LengthFieldPrepender(4));
				pipeline.addLast("decoder", new ByteArrayDecoder());
				pipeline.addLast("encoder", new ByteArrayEncoder());
//				pipeline.addLast("decoder", new StringDecoder(CharsetUtil.UTF_8));
//				pipeline.addLast("encoder", new StringEncoder(CharsetUtil.UTF_8));
				pipeline.addLast(new TcpServerHandler());
			}
		});

		// b.bind(IP, PORT).sync();
		ChannelFuture f = b.bind(PORT).sync(); // (7)

		f.channel().closeFuture().sync();

		System.out.println("TCP服务器已启动");
	}

Source File: TCPClient.java From krpc with MIT License

6 votes

/**
 * 初始化Bootstrap
 * 
 * @return
 */
public static final Bootstrap getBootstrap() {
	EventLoopGroup group = new NioEventLoopGroup();
	Bootstrap b = new Bootstrap();
	b.group(group).channel(NioSocketChannel.class);
	b.handler(new ChannelInitializer<Channel>() {
		@Override
		protected void initChannel(Channel ch) throws Exception {
			ChannelPipeline pipeline = ch.pipeline();
			pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));
			pipeline.addLast("frameEncoder", new LengthFieldPrepender(4));
			pipeline.addLast("decoder", new ByteArrayDecoder());
			pipeline.addLast("encoder", new ByteArrayEncoder());
			pipeline.addLast("handler", new TcpClientHandler());
		}
	});
	return b;
}

Source File: EppProtocolModule.java From nomulus with Apache License 2.0

6 votes

@Provides
@EppProtocol
static ImmutableList<Provider<? extends ChannelHandler>> provideHandlerProviders(
    Provider<ProxyProtocolHandler> proxyProtocolHandlerProvider,
    @EppProtocol Provider<SslServerInitializer<NioSocketChannel>> sslServerInitializerProvider,
    @EppProtocol Provider<ReadTimeoutHandler> readTimeoutHandlerProvider,
    Provider<LengthFieldBasedFrameDecoder> lengthFieldBasedFrameDecoderProvider,
    Provider<LengthFieldPrepender> lengthFieldPrependerProvider,
    Provider<EppServiceHandler> eppServiceHandlerProvider,
    Provider<FrontendMetricsHandler> frontendMetricsHandlerProvider,
    Provider<EppQuotaHandler> eppQuotaHandlerProvider,
    Provider<FullHttpRequestRelayHandler> relayHandlerProvider) {
  return ImmutableList.of(
      proxyProtocolHandlerProvider,
      sslServerInitializerProvider,
      readTimeoutHandlerProvider,
      lengthFieldBasedFrameDecoderProvider,
      lengthFieldPrependerProvider,
      eppServiceHandlerProvider,
      frontendMetricsHandlerProvider,
      eppQuotaHandlerProvider,
      relayHandlerProvider);
}

Source File: TCPClient.java From krpc with MIT License

6 votes

/**
 * 初始化Bootstrap
 * 
 * @return
 */
public  Bootstrap getBootstrap() {
	EventLoopGroup group = new NioEventLoopGroup();
	Bootstrap b = new Bootstrap();
	b.group(group).channel(NioSocketChannel.class);
	TcpClientHandler tcpClientHandler = new TcpClientHandler(TCPClient.this);
	b.handler(new ChannelInitializer<Channel>() {
		@Override
		protected void initChannel(Channel ch) throws Exception {
			ChannelPipeline pipeline = ch.pipeline();
			pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));
			pipeline.addLast("frameEncoder", new LengthFieldPrepender(4));
			pipeline.addLast("decoder", new ByteArrayDecoder());
			pipeline.addLast("encoder", new ByteArrayEncoder());
			pipeline.addLast("handler", tcpClientHandler);
		}
	});
	return b;
}

Source File: NetworkServiceImpl.java From ServerCore with Apache License 2.0

6 votes

@Override
protected void initChannel(Channel ch) {
    ChannelPipeline pip = ch.pipeline();
    int maxLength = 1048576;
    int lengthFieldLength = 4;
    int ignoreLength = -4;
    int offset = 0;
    pip.addLast(new LengthFieldBasedFrameDecoder(maxLength, offset, lengthFieldLength, ignoreLength, lengthFieldLength));
    pip.addLast(new MessageDecoder(builder.getImessageandhandler()));
    pip.addLast(new LengthFieldPrepender(4, true));
    pip.addLast(new MessageEncoder(builder.getImessageandhandler()));
    pip.addLast(new MessageExecutor(builder.getConsumer(), builder.getListener()));
    for (ChannelHandler handler : builder.getExtraHandlers()) {
        pip.addLast(handler);
    }
}

Source File: NettyTransportClient.java From Sentinel with Apache License 2.0

6 votes

private Bootstrap initClientBootstrap() {
    Bootstrap b = new Bootstrap();
    eventLoopGroup = new NioEventLoopGroup();
    b.group(eventLoopGroup)
        .channel(NioSocketChannel.class)
        .option(ChannelOption.TCP_NODELAY, true)
        .option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
        .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, ClusterClientConfigManager.getConnectTimeout())
        .handler(new ChannelInitializer<SocketChannel>() {
            @Override
            public void initChannel(SocketChannel ch) throws Exception {
                clientHandler = new TokenClientHandler(currentState, disconnectCallback);

                ChannelPipeline pipeline = ch.pipeline();
                pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 0, 2, 0, 2));
                pipeline.addLast(new NettyResponseDecoder());
                pipeline.addLast(new LengthFieldPrepender(2));
                pipeline.addLast(new NettyRequestEncoder());
                pipeline.addLast(clientHandler);
            }
        });

    return b;
}

Source File: ClientInitializer.java From Summer with Apache License 2.0

6 votes

@Override
protected void initChannel(SocketChannel sc) {
	ChannelPipeline pipeline = sc.pipeline();
	ClientConfig config = clientContext.getConfig();
	if (ServerConst.SERVER_PROTOCOL_STRING_LINE.equals(config.getProtocol())) {
		pipeline.addLast(new StringPasswordLineDecoder(config.getMsgLength(), config.getCharset(), config.getPassword()));
		pipeline.addLast(new StringPasswordLineEncoder(config.getCharset(), config.getPassword()));
	} else if (ServerConst.SERVER_PROTOCOL_LENGTH_FIELD.equals(config.getProtocol())) {
		pipeline.addLast(new LengthFieldBasedFrameDecoder(config.getMsgLength(), 0, 4, 0, 4));
		pipeline.addLast(new LengthFieldPrepender(4));
		pipeline.addLast(new StringPasswordDecoder(config.getCharset(), config.getPassword()));
		pipeline.addLast(new StringPasswordEncoder(config.getCharset(), config.getPassword()));
	} else {
		throw new NotFoundProtocolException(config.getProtocol());
	}
	pipeline.addLast(new ClientStringHandler(clientContext));
}

Source File: NettyRpcClientChannelInitializer.java From tx-lcn with Apache License 2.0

6 votes

@Override
protected void initChannel(Channel ch) throws Exception {

    ch.pipeline().addLast(new LengthFieldPrepender(4, false));
    ch.pipeline().addLast(new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE,
            0, 4, 0, 4));

    ch.pipeline().addLast(new ObjectSerializerEncoder());
    ch.pipeline().addLast(new ObjectSerializerDecoder());


    ch.pipeline().addLast(rpcCmdDecoder);
    ch.pipeline().addLast(new RpcCmdEncoder());
    ch.pipeline().addLast(nettyClientRetryHandler);
    ch.pipeline().addLast(socketManagerInitHandler);
    ch.pipeline().addLast(rpcAnswerHandler);
}

Source File: NettyRpcServerChannelInitializer.java From tx-lcn with Apache License 2.0

6 votes

@Override
protected void initChannel(Channel ch) throws Exception {
    ch.pipeline().addLast(new LengthFieldPrepender(4, false));
    ch.pipeline().addLast(new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));

    ch.pipeline().addLast(new IdleStateHandler(managerProperties.getCheckTime(),
            managerProperties.getCheckTime(), managerProperties.getCheckTime(), TimeUnit.MILLISECONDS));


    ch.pipeline().addLast(new ObjectSerializerEncoder());
    ch.pipeline().addLast(new ObjectSerializerDecoder());


    ch.pipeline().addLast(rpcCmdDecoder);
    ch.pipeline().addLast(new RpcCmdEncoder());
    ch.pipeline().addLast(socketManagerInitHandler);
    ch.pipeline().addLast(rpcAnswerHandler);
}

Source File: LengthFieldPrependerTest.java From netty4.0.27Learn with Apache License 2.0

6 votes

@Test
public void testPrependLengthInLittleEndian() throws Exception {
    final EmbeddedChannel ch = new EmbeddedChannel(new LengthFieldPrepender(ByteOrder.LITTLE_ENDIAN, 4, 0, false));
    ch.writeOutbound(msg);
    ByteBuf buf = (ByteBuf) ch.readOutbound();
    assertEquals(5, buf.readableBytes());
    byte[] writtenBytes = new byte[buf.readableBytes()];
    buf.getBytes(0, writtenBytes);
    assertEquals(1, writtenBytes[0]);
    assertEquals(0, writtenBytes[1]);
    assertEquals(0, writtenBytes[2]);
    assertEquals(0, writtenBytes[3]);
    assertEquals('A', writtenBytes[4]);
    buf.release();
    assertFalse("The channel must have been completely read", ch.finish());
}

Source File: NodeServerBootstrap.java From GoPush with GNU General Public License v2.0

6 votes

@PostConstruct
public void start() throws Exception {

    ServerBootstrap bootstrap = new ServerBootstrap();
    bootstrap.group(bossGroup, workGroup)
            .channelFactory(NioServerSocketChannel::new)
            .childHandler(new ChannelInitializer<SocketChannel>() {
                @Override
                protected void initChannel(SocketChannel socketChannel) throws Exception {

                    ChannelPipeline pipeline = socketChannel.pipeline();
                    pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));
                    pipeline.addLast("stringDecoder", new StringDecoder(CharsetUtil.UTF_8));
                    pipeline.addLast("frameEncoder", new LengthFieldPrepender(4));
                    pipeline.addLast("stringEncoder", new StringEncoder(CharsetUtil.UTF_8));
                    pipeline.addLast("idleStateHandler", new IdleStateHandler(300, 0, 0));
                    pipeline.addLast("handler", nodeChannelInBoundHandler);
                }
            })
            .option(ChannelOption.TCP_NODELAY, true)
            .childOption(ChannelOption.SO_REUSEADDR, true)
            .option(ChannelOption.SO_SNDBUF, 2048)
            .option(ChannelOption.SO_RCVBUF, 1024);
    bootstrap.bind(goPushNodeServerConfig.getNodePort()).sync();
    log.info("Node server start successful! listening port: {}", goPushNodeServerConfig.getNodePort());
}

Source File: NettyTransport.java From jzab with Apache License 2.0

6 votes

public Sender(final String source, final String destination) {
  this.destination = destination;
  bootstrap = new Bootstrap();
  bootstrap.group(workerGroup);
  bootstrap.channel(NioSocketChannel.class);
  bootstrap.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 1000);
  bootstrap.option(ChannelOption.SO_KEEPALIVE, true);
  bootstrap.option(ChannelOption.TCP_NODELAY, true);
  bootstrap.handler(new ChannelInitializer<SocketChannel>() {
    @Override
    public void initChannel(SocketChannel ch) throws Exception {
      if (isSslEnabled()) {
        SSLEngine engine = serverContext.createSSLEngine();
        engine.setUseClientMode(true);
        ch.pipeline().addLast(new SslHandler(engine));
      }
      // Inbound handlers.
      ch.pipeline().addLast("clientError", new ClientErrorHandler());
      // Outbound handlers.
      ch.pipeline().addLast("frameEncoder", new LengthFieldPrepender(4));
    }
  });
}

Source File: NettyTransportClient.java From Sentinel-Dashboard-Nacos with Apache License 2.0

6 votes

private Bootstrap initClientBootstrap() {
    Bootstrap b = new Bootstrap();
    eventLoopGroup = new NioEventLoopGroup();
    b.group(eventLoopGroup)
        .channel(NioSocketChannel.class)
        .option(ChannelOption.TCP_NODELAY, true)
        .option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
        .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, ClusterClientConfigManager.getConnectTimeout())
        .handler(new ChannelInitializer<SocketChannel>() {
            @Override
            public void initChannel(SocketChannel ch) throws Exception {
                clientHandler = new TokenClientHandler(currentState, disconnectCallback);

                ChannelPipeline pipeline = ch.pipeline();
                pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 0, 2, 0, 2));
                pipeline.addLast(new NettyResponseDecoder());
                pipeline.addLast(new LengthFieldPrepender(2));
                pipeline.addLast(new NettyRequestEncoder());
                pipeline.addLast(clientHandler);
            }
        });

    return b;
}

Source File: TCPChannelInitializerHandler.java From NettyChat with Apache License 2.0

6 votes

@Override
protected void initChannel(Channel channel) throws Exception {
    ChannelPipeline pipeline = channel.pipeline();

    // netty提供的自定义长度解码器，解决TCP拆包/粘包问题
    pipeline.addLast("frameEncoder", new LengthFieldPrepender(2));
    pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(65535,
            0, 2, 0, 2));

    // 增加protobuf编解码支持
    pipeline.addLast(new ProtobufEncoder());
    pipeline.addLast(new ProtobufDecoder(MessageProtobuf.Msg.getDefaultInstance()));

    // 握手认证消息响应处理handler
    pipeline.addLast(LoginAuthRespHandler.class.getSimpleName(), new LoginAuthRespHandler(imsClient));
    // 心跳消息响应处理handler
    pipeline.addLast(HeartbeatRespHandler.class.getSimpleName(), new HeartbeatRespHandler(imsClient));
    // 接收消息处理handler
    pipeline.addLast(TCPReadHandler.class.getSimpleName(), new TCPReadHandler(imsClient));
}

Source File: QueryServer.java From incubator-pinot with Apache License 2.0

6 votes

public void start() {
  _bossGroup = new NioEventLoopGroup();
  _workerGroup = new NioEventLoopGroup();
  try {
    ServerBootstrap serverBootstrap = new ServerBootstrap();
    _channel = serverBootstrap.group(_bossGroup, _workerGroup).channel(NioServerSocketChannel.class)
        .option(ChannelOption.SO_BACKLOG, 128).childOption(ChannelOption.SO_KEEPALIVE, true)
        .childHandler(new ChannelInitializer<SocketChannel>() {
          @Override
          protected void initChannel(SocketChannel ch) {
            ch.pipeline()
                .addLast(new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, Integer.BYTES, 0, Integer.BYTES),
                    new LengthFieldPrepender(Integer.BYTES),
                    new InstanceRequestHandler(_queryScheduler, _serverMetrics));
          }
        }).bind(_port).sync().channel();
  } catch (Exception e) {
    // Shut down immediately
    _workerGroup.shutdownGracefully(0, 0, TimeUnit.SECONDS);
    _bossGroup.shutdownGracefully(0, 0, TimeUnit.SECONDS);
    throw new RuntimeException(e);
  }
}

Source File: ServerChannels.java From incubator-pinot with Apache License 2.0

6 votes

ServerChannel(ServerRoutingInstance serverRoutingInstance) {
  _serverRoutingInstance = serverRoutingInstance;
  _bootstrap = new Bootstrap().remoteAddress(serverRoutingInstance.getHostname(), serverRoutingInstance.getPort())
      .group(_eventLoopGroup).channel(NioSocketChannel.class).option(ChannelOption.SO_KEEPALIVE, true)
      .handler(new ChannelInitializer<SocketChannel>() {
        @Override
        protected void initChannel(SocketChannel ch) {
          ch.pipeline()
              .addLast(new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, Integer.BYTES, 0, Integer.BYTES),
                  new LengthFieldPrepender(Integer.BYTES),
                  // NOTE: data table de-serialization happens inside this handler
                  // Revisit if this becomes a bottleneck
                  new DataTableHandler(_queryRouter, _serverRoutingInstance, _brokerMetrics));
        }
      });
}

Source File: Client.java From push with Apache License 2.0

6 votes

public void run() {
    workerGroup = new NioEventLoopGroup();
    try {
        Bootstrap b = new Bootstrap();
        b.group(workerGroup);
        b.channel(NioSocketChannel.class);
        // b.option(ChannelOption.SO_KEEPALIVE, true);
        b.handler(new ChannelInitializer<SocketChannel>() {
            @Override
            public void initChannel(SocketChannel ch) throws Exception {
                ChannelPipeline pipeline = ch.pipeline();
                pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(65536, 0, 4, 0, 4));
                pipeline.addLast("frameEncoder", new LengthFieldPrepender(4));
                pipeline.addLast("decoder", new MsgPackDecode());
                pipeline.addLast("encoder", new MsgPackEncode());
                pipeline.addLast(ClientConfiguration.clientHandler());
            }
        });
        channel = b.connect(clientProperties.getServerHost(), clientProperties.getServerPort()).sync().channel();
        status = Status.START;
        channel.closeFuture().sync();
    } catch (Exception e) {
        e.printStackTrace();
    }
    status = Status.STOP;
}

Source File: LengthFieldPrependerTest.java From netty4.0.27Learn with Apache License 2.0

5 votes

@Test
public void testPrependLength() throws Exception {
    final EmbeddedChannel ch = new EmbeddedChannel(new LengthFieldPrepender(4));
    ch.writeOutbound(msg);
    final ByteBuf buf = (ByteBuf) ch.readOutbound();
    assertThat(buf, is(wrappedBuffer(new byte[]{0, 0, 0, 1, 'A'})));
    buf.release();
}

Source File: DeviceServerBootstrap.java From GoPush with GNU General Public License v2.0

5 votes

@PostConstruct
public void start() throws Exception {


    ServerBootstrap bootstrap = new ServerBootstrap();
    bootstrap.group(bossGroup, workGroup)
            .channelFactory(NioServerSocketChannel::new)
            .childHandler(new ChannelInitializer<SocketChannel>() {
                @Override
                protected void initChannel(SocketChannel socketChannel) throws Exception {

                    ChannelPipeline pipeline = socketChannel.pipeline();
                    pipeline.addLast("logHandler", new LoggingHandler());
                    pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));
                    pipeline.addLast("stringDecoder", new StringDecoder(CharsetUtil.UTF_8));
                    pipeline.addLast("frameEncoder", new LengthFieldPrepender(4));
                    pipeline.addLast("stringEncoder", new StringEncoder(CharsetUtil.UTF_8));
                    pipeline.addLast("idleStateHandler", new IdleStateHandler(300, 0, 0));

                    pipeline.addLast("handler", deviceChannelInboundHandler);
                }
            })

            .option(ChannelOption.SO_BACKLOG, 1000000)  //连接队列深度
            .option(ChannelOption.TCP_NODELAY, true)   //设置 no_delay
            .option(ChannelOption.SO_SNDBUF, 2048).option(ChannelOption.SO_RCVBUF, 1024)
            .childOption(ChannelOption.TCP_NODELAY, true)
            .childOption(ChannelOption.SO_REUSEADDR, true)
            .childOption(ChannelOption.SO_SNDBUF, 2048).childOption(ChannelOption.SO_RCVBUF, 1024)
            .childOption(ChannelOption.SO_LINGER, 0);

    bootstrap.bind(goPushNodeServerConfig.getDevicePort()).sync();
    log.info("device server start successful! listening port: {}", goPushNodeServerConfig.getDevicePort());
}

Source File: NettyRpcClient.java From netty-learning with Apache License 2.0

5 votes

public void start(){
    b.group(group).channel(NioSocketChannel.class)
            .option(ChannelOption.TCP_NODELAY, true)
            .option(ChannelOption.SO_KEEPALIVE, true)
            .handler(new ChannelInitializer<SocketChannel>() {
                @Override
                public void initChannel(SocketChannel ch)
                        throws Exception {
                    ch.pipeline().addLast(new LengthFieldBasedFrameDecoder(1<<20, 0, 4, 0, 4),
                            new LengthFieldPrepender(4),
                            new RpcDecoder(Response.class), //
                            new RpcEncoder(Request.class), //
                            new IdleStateHandler(0, 0, 60, TimeUnit.SECONDS),
                            new NettyConnHandler(),
                            new NettyClientHandler());
                }
            });

    this.scheduledThreadPoolExecutor = new ScheduledThreadPoolExecutor(5, new ThreadFactory() {
        private final AtomicInteger idGenerator = new AtomicInteger(0);
        @Override
        public Thread newThread(Runnable r) {

            return new Thread(r, "Rpc-Scheduled-" + this.idGenerator.incrementAndGet());
        }
    });


    this.scheduledThreadPoolExecutor.scheduleAtFixedRate(new Runnable() {
        @Override
        public void run() {
            scanRpcFutureTable();
        }
    }, 500, 500, TimeUnit.MILLISECONDS);
}

Source File: EppProtocolModule.java From nomulus with Apache License 2.0

5 votes

@Singleton
@Provides
static LengthFieldPrepender provideLengthFieldPrepender(ProxyConfig config) {
  return new LengthFieldPrepender(
      // Header field length.
      config.epp.headerLengthBytes,
      // Length includes header field length.
      true);
}

Source File: Node.java From GoPush with GNU General Public License v2.0

5 votes

private ChannelInitializer channelInitializer() {
    return new ChannelInitializer<SocketChannel>() {
        @Override
        protected void initChannel(SocketChannel socketChannel) throws Exception {
            ChannelPipeline pipeline = socketChannel.pipeline();
            pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));
            pipeline.addLast("stringDecoder", new StringDecoder(CharsetUtil.UTF_8));
            pipeline.addLast("frameEncoder", new LengthFieldPrepender(4));
            pipeline.addLast("stringEncoder", new StringEncoder(CharsetUtil.UTF_8));
            pipeline.addLast("idleStateHandler", new IdleStateHandler(300, 0, 0));
            pipeline.addLast("handler", nodeChannelInBoundHandler());
        }
    };
}

Source File: LengthFieldPrependerTest.java From netty4.0.27Learn with Apache License 2.0

5 votes

@Test
public void testPrependLengthIncludesLengthFieldLength() throws Exception {
    final EmbeddedChannel ch = new EmbeddedChannel(new LengthFieldPrepender(4, true));
    ch.writeOutbound(msg);
    final ByteBuf buf = (ByteBuf) ch.readOutbound();
    assertThat(buf, is(wrappedBuffer(new byte[]{0, 0, 0, 5, 'A'})));
    buf.release();
}

Source File: LengthFieldPrependerTest.java From netty4.0.27Learn with Apache License 2.0

5 votes

@Test
public void testPrependAdjustedLength() throws Exception {
    final EmbeddedChannel ch = new EmbeddedChannel(new LengthFieldPrepender(4, -1));
    ch.writeOutbound(msg);
    final ByteBuf buf = (ByteBuf) ch.readOutbound();
    assertThat(buf, is(wrappedBuffer(new byte[]{0, 0, 0, 0, 'A'})));
    buf.release();
}

Source File: LengthFieldPrependerTest.java From netty4.0.27Learn with Apache License 2.0

5 votes

@Test
public void testAdjustedLengthLessThanZero() throws Exception {
    final EmbeddedChannel ch = new EmbeddedChannel(new LengthFieldPrepender(4, -2));
    try {
        ch.writeOutbound(msg);
        fail(EncoderException.class.getSimpleName() + " must be raised.");
    } catch (EncoderException e) {
        // Expected
    }
}

Source File: PlacementServer.java From Okra with Apache License 2.0

5 votes

@Override
protected ChannelHandler newChannelInitializer() {
    return new ChannelInitializer<NioSocketChannel>() {
        @Override
        protected void initChannel(NioSocketChannel ch) throws Exception {
            ChannelPipeline cp = ch.pipeline();
            cp.addLast("frame", new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 2, 0, 2));
            cp.addLast("prepender", new LengthFieldPrepender(2, false));
            // Any other useful handler
            cp.addLast("strDecoder", STRING_DECODER);
            cp.addLast("strEncoder", STRING_ENCODER);
            cp.addLast("handler", new DisruptorAdapterBy41xHandler<JsonRequest>() {
                protected Executor newExecutor(Session session, JsonRequest msg) {
                    return new Executor() {
                        @Override
                        @SuppressWarnings("unchecked")
                        public void onExecute() {
                            try {
                                Command command = serviceManager.getCommand(msg.getApi());
                                if (command == null) {
                                    LOG.warn("Command is not exist. API : ", msg.getApi());
                                    return;
                                }
                                command.execute(session, msg);
                            } catch (Exception e) {
                                LOG.error("Error occured by execute command.", e);
                            }
                        }

                        @Override
                        public void release() {

                        }
                    };
                }
            });
        }
    };
}

Source File: NettyChannelInitializer.java From reef with Apache License 2.0

5 votes

@Override
protected void initChannel(final SocketChannel ch) throws Exception {
  ch.pipeline()
      .addLast("frameDecoder", new LengthFieldBasedFrameDecoder(MAXFRAMELENGTH, 0, 4, 0, 4))
      .addLast("bytesDecoder", new ByteArrayDecoder())
      .addLast("frameEncoder", new LengthFieldPrepender(4))
      .addLast("bytesEncoder", new ByteArrayEncoder())
      .addLast("chunker", new ChunkedReadWriteHandler())
      .addLast("handler", handlerFactory.createChannelInboundHandler());
}

Source File: OlapPipelineFactory.java From spliceengine with GNU Affero General Public License v3.0

5 votes

@Override
protected void initChannel(Channel channel) throws Exception {
    SpliceLogUtils.trace(LOG, "Creating new channel pipeline...");
    ChannelPipeline pipeline = channel.pipeline();
    pipeline.addLast("frameDecoder",new LengthFieldBasedFrameDecoder(1<<30,0,4,0,4)); //max frame size is 1GB=2^30 bytes
    pipeline.addLast("protobufDecoder",decoder);
    pipeline.addLast("frameEncoder",new LengthFieldPrepender(4));
    pipeline.addLast("protobufEncoder",new ProtobufEncoder());
    pipeline.addLast("statusHandler", statusHandler);
    pipeline.addLast("submitHandler", submitHandler);
    pipeline.addLast("cancelHandler",cancelHandler);
    SpliceLogUtils.trace(LOG, "Done creating channel pipeline");
}

io.netty.handler.codec.LengthFieldPrepender Java Examples