Example usage for io.netty.channel ChannelFuture isSuccess

Introduction

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

Prototype

boolean isSuccess();

Source Link

Document

Returns true if and only if the I/O operation was completed successfully.

Usage

From source file:NettyInboundHttpTargetHandler.java

License:Apache License

@Override
public void channelRead(final ChannelHandlerContext ctx, Object msg) throws Exception {
    //   System.out.println("Receving data");
    inboundChannel.writeAndFlush(msg).addListener(new ChannelFutureListener() {
        @Override/*w w w  . j  av a 2 s  .  c o m*/
        public void operationComplete(ChannelFuture future) throws Exception {
            if (future.isSuccess()) {
                ctx.channel().read();
            } else {
                future.channel().close();
            }
        }
    });
}

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From source file:NettyHttpTransportSourceHandler.java

License:Apache License

/**
 * activating registered handler to accept events.
 *
 * @param ctx//from w w w .j  a va  2  s .  c o m
 * @throws Exception
 */
@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {

    final Channel inboundChannel = ctx.channel();

    Bootstrap b = new Bootstrap();
    b.group(inboundChannel.eventLoop()).channel(ctx.channel().getClass());
    b.handler(new NettyTargetHandlerInitilizer(inboundChannel)).option(ChannelOption.AUTO_READ, false);

    b.option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
    b.option(ChannelOption.TCP_NODELAY, true);
    b.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 15000);

    b.option(ChannelOption.SO_SNDBUF, 1048576);
    b.option(ChannelOption.SO_RCVBUF, 1048576);

    ChannelFuture f = b.connect(NettyHttpListner.HOST, NettyHttpListner.HOST_PORT);

    outboundChannel = f.channel();
    f.addListener(new ChannelFutureListener() {
        @Override
        public void operationComplete(ChannelFuture future) throws Exception {
            if (future.isSuccess()) {
                // connection complete start to read first data
                inboundChannel.read();
            } else {
                // Close the connection if the connection attempt has failed.
                inboundChannel.close();
            }
        }
    });

}

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From source file:NettyHttpTransportSourceHandler.java

License:Apache License

/**
 * receiving events through netty./*from w  w w.jav a  2s  .co  m*/
 *
 * @param ctx
 * @param msg
 * @throws Exception
 */
@Override
public void channelRead(final ChannelHandlerContext ctx, Object msg) throws Exception {

    if (outboundChannel.isActive()) {
        outboundChannel.writeAndFlush(msg).addListener(new ChannelFutureListener() {
            @Override
            public void operationComplete(ChannelFuture future) throws Exception {
                if (future.isSuccess()) {
                    // was able to flush out data, start to read the next chunk
                    ctx.channel().read();
                } else {
                    future.channel().close();
                }
            }
        });
    } else {
        // System.out.println("Outbound Channel Not Active");
    }
}

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

License:Apache License

@Override
public ByteBuffer read(InetSocketAddress address, long blockId, long offset, long length, long sessionId,
        boolean noCache) throws IOException {
    Channel channel = null;//  ww  w. j  av  a 2  s.com
    ClientHandler clientHandler = null;
    Metrics.NETTY_UFS_BLOCK_READ_OPS.inc();
    try {
        channel = mContext.acquireNettyChannel(address);
        if (!(channel.pipeline().last() instanceof ClientHandler)) {
            channel.pipeline().addLast(new ClientHandler());
        }
        clientHandler = (ClientHandler) channel.pipeline().last();
        SingleResponseListener listener = new SingleResponseListener();
        clientHandler.addListener(listener);

        ChannelFuture channelFuture = channel.writeAndFlush(
                new RPCUnderFileSystemBlockReadRequest(blockId, offset, length, sessionId, noCache));
        channelFuture = channelFuture.sync();
        if (channelFuture.isDone() && !channelFuture.isSuccess()) {
            LOG.error("Failed to read from %s for block %d with error %s.", address.toString(), blockId,
                    channelFuture.cause());
            throw new IOException(channelFuture.cause());
        }

        RPCResponse response = listener.get(NettyClient.TIMEOUT_MS, TimeUnit.MILLISECONDS);

        switch (response.getType()) {
        case RPC_BLOCK_READ_RESPONSE:
            RPCBlockReadResponse blockResponse = (RPCBlockReadResponse) response;
            LOG.debug("Data {} from machine {} received", blockId, address);

            RPCResponse.Status status = blockResponse.getStatus();
            if (status == RPCResponse.Status.SUCCESS) {
                // always clear the previous response before reading another one
                close();
                mReadResponse = blockResponse;
                return blockResponse.getPayloadDataBuffer().getReadOnlyByteBuffer();
            }
            throw new IOException(status.getMessage() + " response: " + blockResponse);
        case RPC_ERROR_RESPONSE:
            RPCErrorResponse error = (RPCErrorResponse) response;
            throw new IOException(error.getStatus().getMessage());
        default:
            throw new IOException(ExceptionMessage.UNEXPECTED_RPC_RESPONSE.getMessage(response.getType(),
                    RPCMessage.Type.RPC_BLOCK_READ_RESPONSE));
        }
    } catch (Exception e) {
        Metrics.NETTY_UFS_BLOCK_READ_FAILURES.inc();
        try {
            if (channel != null) {
                channel.close().sync();
            }
        } catch (InterruptedException ee) {
            throw new RuntimeException(ee);
        }
        throw new IOException(e);
    } finally {
        if (clientHandler != null) {
            clientHandler.removeListeners();
        }
        if (channel != null) {
            mContext.releaseNettyChannel(address, channel);
        }
    }
}

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From source file:alluxio.network.connection.NettyChannelPool.java

License:Apache License

/**
 * Creates a netty channel instance./*  ww w.j a v  a2 s  .co  m*/
 *
 * @return the channel created
 * @throws IOException if it fails to create a channel
 */
@Override
protected Channel createNewResource() throws IOException {
    Bootstrap bs;
    try {
        bs = mBootstrap.clone();
    } catch (Exception e) {
        // No exception should happen here.
        throw Throwables.propagate(e);
    }
    try {
        ChannelFuture channelFuture = bs.connect().sync();
        if (channelFuture.isSuccess()) {
            LOG.info("Created netty channel with netty bootstrap {}.", mBootstrap);
            return channelFuture.channel();
        } else {
            LOG.error("Failed to create netty channel with netty bootstrap {} and error {}.", mBootstrap,
                    channelFuture.cause().getMessage());
            throw new IOException(channelFuture.cause());
        }
    } catch (InterruptedException e) {
        throw new RuntimeException(e);
    }
}

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

License:Apache License

/**
 * Creates a netty channel instance./*from   w  w w  .j  a v  a2  s .co m*/
 *
 * @return the channel created
 */
@Override
protected Channel createNewResource() throws IOException {
    Bootstrap bs;
    bs = mBootstrap.clone();
    try {
        ChannelFuture channelFuture = bs.connect().sync();
        if (channelFuture.isSuccess()) {
            LOG.info("Created netty channel with netty bootstrap {}.", mBootstrap);
            return channelFuture.channel();
        } else {
            LOG.error("Failed to create netty channel with netty bootstrap {} and error {}.", mBootstrap,
                    channelFuture.cause().getMessage());
            throw new UnavailableException(channelFuture.cause());
        }
    } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
        throw new CanceledException(e);
    }
}

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From source file:be.yildizgames.module.network.netty.server.ServerNetty.java

License:MIT License

/**
 * Start the server to listen to clients.
 *///from   ww w .  j av  a 2s .co m
//@ensures To start the server and having the port listening to clients.
@Override
public void startServer(String address, int port, SessionManager sessionManager, DecoderEncoder codec) {
    try {
        ChannelInitializer<SocketChannel> initializer = new NettyChannelInitializer(
                new SessionServerHandlerFactory(sessionManager, codec));

        this.bootstrap.childHandler(initializer);
        InetSocketAddress socketAddress;
        if (address == null) {
            socketAddress = new InetSocketAddress(port);
        } else {
            socketAddress = new InetSocketAddress(address, port);
        }
        ChannelFuture acceptor = this.bootstrap.bind(socketAddress).sync();
        if (acceptor.isSuccess()) {
            LOGGER.debug("server bound to :" + port);
            LOGGER.info("Server started.");
        } else {
            LOGGER.warn("server not bound to :" + port);
            LOGGER.info("Server not started.");
        }
    } catch (ChannelException e) {
        this.throwError("Port " + port + " already in use.", e);
    } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
        this.throwError("Error starting network engine.", e);
    }
}

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From source file:bftsmart.communication.client.netty.NettyClientServerCommunicationSystemClientSide.java

License:Apache License

public NettyClientServerCommunicationSystemClientSide(int clientId, ClientViewController controller) {
    super();//from www .  j a v  a  2s  .com

    this.clientId = clientId;
    this.workerGroup = new NioEventLoopGroup(Runtime.getRuntime().availableProcessors());
    try {

        this.secretKeyFactory = TOMUtil.getSecretFactory();

        this.controller = controller;

        /* Tulio Ribeiro */
        privKey = controller.getStaticConf().getPrivateKey();

        this.listener = new SyncListener();
        this.rl = new ReentrantReadWriteLock();

        int[] currV = controller.getCurrentViewProcesses();

        for (int i = 0; i < currV.length; i++) {
            int replicaId = currV[i];
            try {

                ChannelFuture future = connectToReplica(replicaId, secretKeyFactory);

                logger.debug("ClientID {}, connecting to replica {}, at address: {}", clientId, replicaId,
                        controller.getRemoteAddress(replicaId));

                future.awaitUninterruptibly();

                if (!future.isSuccess()) {
                    logger.error("Impossible to connect to " + replicaId);
                }

            } catch (java.lang.NullPointerException ex) {
                // What is this??? This is not possible!!!
                logger.debug("Should fix the problem, and I think it has no other implications :-), "
                        + "but we must make the servers store the view in a different place.");
            } catch (Exception ex) {
                logger.error("Failed to initialize MAC engine", ex);
            }
        }
    } catch (NoSuchAlgorithmException ex) {
        logger.error("Failed to initialize secret key factory", ex);
    }
}

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From source file:bftsmart.communication.client.netty.NettyClientServerCommunicationSystemClientSide.java

License:Apache License

@Override
public void updateConnections() {
    int[] currV = controller.getCurrentViewProcesses();
    try {/*from   www.jav a2 s. c  o  m*/
        // open connections with new servers
        for (int i = 0; i < currV.length; i++) {

            int replicaId = currV[i];

            rl.readLock().lock();
            if (sessionClientToReplica.get(replicaId) == null) {
                rl.readLock().unlock();
                rl.writeLock().lock();
                try {
                    ChannelFuture future = connectToReplica(replicaId, secretKeyFactory);
                    logger.debug("ClientID {}, updating connection to replica {}, at address: {}", clientId,
                            replicaId, controller.getRemoteAddress(replicaId));

                    future.awaitUninterruptibly();

                    if (!future.isSuccess()) {
                        logger.error("Impossible to connect to " + replicaId);
                    }

                } catch (InvalidKeyException | InvalidKeySpecException ex) {
                    logger.error("Failed to initialize MAC engine", ex);
                }
                rl.writeLock().unlock();
            } else {
                rl.readLock().unlock();
            }
        }
    } catch (NoSuchAlgorithmException ex) {
        logger.error("Failed to initialzie secret key factory", ex);
    }
}

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From source file:c5db.control.ControlService.java

License:Apache License

private void startHttpRpc() {
    try {//from  www . jav a2 s. co  m
        ServerBootstrap serverBootstrap = new ServerBootstrap();
        ServerBootstrap serverBootstrap1 = serverBootstrap.group(acceptConnectionGroup, ioWorkerGroup)
                .channel(NioServerSocketChannel.class).option(ChannelOption.SO_REUSEADDR, true)
                .option(ChannelOption.SO_BACKLOG, 100).childOption(ChannelOption.TCP_NODELAY, true)
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline pipeline = ch.pipeline();

                        //              pipeline.addLast("logger", new LoggingHandler(LogLevel.DEBUG));
                        pipeline.addLast("http-server", new HttpServerCodec());
                        pipeline.addLast("aggregator",
                                new HttpObjectAggregator(C5ServerConstants.MAX_CALL_SIZE));

                        pipeline.addLast("encode", new ServerHttpProtostuffEncoder());
                        pipeline.addLast("decode", new ServerHttpProtostuffDecoder());

                        pipeline.addLast("translate", new ServerDecodeCommandRequest());

                        pipeline.addLast("inc-messages", new MessageHandler());
                    }
                });

        serverBootstrap.bind(modulePort).addListener(new ChannelFutureListener() {
            @Override
            public void operationComplete(ChannelFuture future) throws Exception {
                if (future.isSuccess()) {
                    // yay
                    listenChannel = future.channel();
                    notifyStarted();
                } else {
                    LOG.error("Unable to bind to port {}", modulePort);
                    notifyFailed(future.cause());
                }
            }
        });
    } catch (Exception e) {
        notifyFailed(e);
    }
}

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