Example usage for java.nio.channels SocketChannel open

List of usage examples for java.nio.channels SocketChannel open

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Introduction

In this page you can find the example usage for java.nio.channels SocketChannel open.

Prototype

public static SocketChannel open() throws IOException

Source Link

Document

Opens a socket channel.

Usage

From source file:gridool.util.net.PoolableSocketChannelFactory.java

private static SocketChannel createSocketChannel(final SocketAddress sockAddr, final boolean blocking,
        final int rcvbufSize) {
    final SocketChannel ch;
    try {//from   w  ww.  j  ava  2s  . c  o m
        ch = SocketChannel.open();
        ch.configureBlocking(blocking);
    } catch (IOException e) {
        LOG.error("Failed to open SocketChannel.", e);
        throw new IllegalStateException(e);
    }
    final Socket sock = ch.socket();
    if (rcvbufSize != -1) {
        try {
            sock.setReceiveBufferSize(rcvbufSize);
        } catch (SocketException e) {
            LOG.error("Failed to setReceiveBufferSize.", e);
            throw new IllegalStateException(e);
        }
    }
    try {
        ch.connect(sockAddr);
    } catch (IOException e) {
        LOG.error("Failed to connect socket: " + sockAddr, e);
        throw new IllegalStateException(e);
    }
    return ch;
}

From source file:org.apache.nifi.processor.util.put.sender.SocketChannelSender.java

@Override
public void open() throws IOException {
    if (channel == null) {
        channel = SocketChannel.open();
        channel.configureBlocking(false);

        if (maxSendBufferSize > 0) {
            channel.setOption(StandardSocketOptions.SO_SNDBUF, maxSendBufferSize);
            final int actualSendBufSize = channel.getOption(StandardSocketOptions.SO_SNDBUF);
            if (actualSendBufSize < maxSendBufferSize) {
                logger.warn("Attempted to set Socket Send Buffer Size to " + maxSendBufferSize
                        + " bytes but could only set to " + actualSendBufSize + "bytes. You may want to "
                        + "consider changing the Operating System's maximum receive buffer");
            }/*w  w  w. j av  a  2 s . c o m*/
        }
    }

    if (!channel.isConnected()) {
        final long startTime = System.currentTimeMillis();
        final InetSocketAddress socketAddress = new InetSocketAddress(InetAddress.getByName(host), port);

        if (!channel.connect(socketAddress)) {
            while (!channel.finishConnect()) {
                if (System.currentTimeMillis() > startTime + timeout) {
                    throw new SocketTimeoutException("Timed out connecting to " + host + ":" + port);
                }

                try {
                    Thread.sleep(50L);
                } catch (final InterruptedException e) {
                }
            }
        }

        socketChannelOutput = new SocketChannelOutputStream(channel);
        socketChannelOutput.setTimeout(timeout);
    }
}

From source file:org.commoncrawl.io.internal.NIOClientTCPSocket.java

public NIOClientTCPSocket(InetSocketAddress localAddress, NIOClientSocketListener socketListener)
        throws IOException {
    _socketType = SocketType.Outgoing;//from   ww  w  . j  av  a 2 s .  co m
    _channel = SocketChannel.open();
    if (localAddress != null) {
        InetSocketAddress modifiedLocalAddress = new InetSocketAddress(localAddress.getAddress(), 0);
        // System.out.println("Binding To Local Address:" + modifiedLocalAddress.getAddress());
        // LOG.info(this + "Binding To Local Address:" + modifiedLocalAddress.getAddress());
        _channel.socket().bind(modifiedLocalAddress);
    }
    _localAddress = (InetSocketAddress) _channel.socket().getLocalSocketAddress();
    setClientSocketOptions(_channel);
    _listener = socketListener;

}

From source file:gridool.communication.transport.tcp.GridNioClient.java

public void sendMessage(SocketAddress sockAddr, GridCommunicationMessage msg) throws GridException {
    final SocketChannel channel;
    try {//  www.ja v a 2 s  .c om
        channel = SocketChannel.open();
    } catch (IOException e) {
        LOG.error(PrintUtils.prettyPrintStackTrace(e, -1));
        throw new GridException(e);
    }
    final Socket socket = channel.socket();
    try {
        SocketUtils.openSocket(socket, sockAddr, 0, 2000L, 3);
    } catch (IOException e) {
        NetUtils.closeQuietly(socket);
        IOUtils.closeQuietly(channel);
        LOG.error(PrintUtils.prettyPrintStackTrace(e, -1));
        throw new GridException(e);
    }

    final ByteBuffer buf = toBuffer(msg);
    if (LOG.isDebugEnabled()) {
        LOG.debug("Sending a GridCommunicationMessage [" + msg.getMessageId() + " (" + buf.remaining()
                + " bytes)] to a node [" + sockAddr + "] using a channel [" + channel + ']');
    }
    final int written;
    try {
        written = NIOUtils.countingWriteFully(channel, buf);
        NetUtils.shutdownOutputQuietly(socket); // terminate socket output (send FIN)
    } catch (IOException ioe) {
        final String errmsg = "Failed to send a GridCommunicationMessage [" + msg + "] to host [" + sockAddr
                + ']';
        LOG.error(errmsg, ioe);
        throw new GridException(errmsg, ioe);
    } catch (Throwable e) {
        LOG.fatal(e.getMessage(), e);
        throw new GridException("Unexpected exception was caused", e);
    } finally {
        NetUtils.closeQuietly(socket);
        IOUtils.closeQuietly(channel);
    }
    if (LOG.isDebugEnabled()) {
        LOG.debug("Succeeded to send a GridCommunicationMessage (" + written + " bytes) to host [" + sockAddr
                + "]");
    }
}

From source file:gridool.communication.transport.tcp.GridNonBlockingClient.java

public void sendMessage(SocketAddress sockAddr, GridCommunicationMessage msg) throws GridException {
    final SocketChannel channel;
    try {//  ww w .  j av  a 2s  . co  m
        channel = SocketChannel.open();
        channel.configureBlocking(false);
    } catch (IOException e) {
        LOG.error(PrintUtils.prettyPrintStackTrace(e, -1));
        throw new GridException(e);
    }
    final Socket socket = channel.socket();
    try {
        socket.connect(sockAddr);
        // wait for connect succeeds
        while (!channel.finishConnect()) {
            try {
                Thread.sleep(1000L);
            } catch (InterruptedException e) {
                ;
            }
        }
    } catch (IOException e) {
        IOUtils.closeQuietly(channel);
        NetUtils.closeQuietly(socket);
        LOG.error(PrintUtils.prettyPrintStackTrace(e, -1));
        throw new GridException(e);
    }

    final ByteBuffer buf = toBuffer(msg);
    if (LOG.isDebugEnabled()) {
        LOG.debug("Sending a GridCommunicationMessage [" + msg.getMessageId() + " (" + buf.remaining()
                + " bytes)] to a node [" + sockAddr + "] using a channel [" + channel + ']');
    }
    final int written;
    try {
        written = NIOUtils.countingWriteFully(channel, buf);
        NetUtils.shutdownOutputQuietly(socket); // terminate socket output (send FIN)
    } catch (IOException ioe) {
        final String errmsg = "Failed to send a GridCommunicationMessage [" + msg + "] to host [" + sockAddr
                + ']';
        LOG.error(errmsg, ioe);
        throw new GridException(errmsg, ioe);
    } catch (Throwable e) {
        LOG.fatal(e.getMessage(), e);
        throw new GridException("Unexpected exception was caused", e);
    } finally {
        NetUtils.closeQuietly(socket);
    }
    if (LOG.isDebugEnabled()) {
        LOG.debug("Succeeded to send a GridCommunicationMessage (" + written + " bytes) to host [" + sockAddr
                + "]");
    }
}

From source file:com.byteatebit.nbserver.simple.client.SimpleNbClient.java

public void tcpConnect(String remoteHost, int remotePort, IClientSocketChannelHandler socketChannelHandler,
        long timeout) throws IOException {
    if (!initialized.get())
        throw new IllegalStateException("SimpleNbClient must first be initialized via init()");
    SocketChannel socketChannel = SocketChannel.open();
    socketChannel.configureBlocking(false);
    InetSocketAddress address = new InetSocketAddress(remoteHost, remotePort);
    INbContext nbContext = new NbContext(simpleNbService.getSelectorRegistrarBalancer().getSelectorRegistrar(),
            simpleNbService.getScheduler());
    IOTask connectTask = (selectionKey) -> {
        boolean connectionFinished = false;
        try {/* ww  w  . j  a va2s  .  c o m*/
            connectionFinished = socketChannel.finishConnect();
        } catch (IOException e) {
            LOG.error("Could not complete socket connection.", e);
        }
        if (!connectionFinished) {
            LOG.error("Could not complete socket connection.  Closing socket channel");
            selectionKey.cancel();
            IOUtils.closeQuietly(socketChannel);
            socketChannelHandler.connectFailed(remoteHost, remotePort);
            return;
        }
        selectionKey.interestOps(selectionKey.interestOps() & ~SelectionKey.OP_CONNECT);
        socketChannelHandler.accept(nbContext, socketChannel);
    };
    IOTimeoutTask timeoutTask = (selectionKey, ops) -> {
        LOG.error("Connect attempt timed out after " + timeout + " ms");
        selectionKey.cancel();
        IOUtils.closeQuietly(socketChannel);
        socketChannelHandler.connectFailed(remoteHost, remotePort);
    };
    nbContext.register(socketChannel, SelectionKey.OP_CONNECT, connectTask, timeoutTask, timeout);
    socketChannel.connect(address);
}

From source file:org.apache.james.CassandraConfTest.java

@Before
public void setUp() throws IOException {
    socketChannel = SocketChannel.open();
}

From source file:net.ymate.platform.serv.nio.support.NioEventGroup.java

@SuppressWarnings("unchecked")
protected INioSession __doSessionCreate(IClientCfg cfg) throws IOException {
    SocketChannel _channel = SocketChannel.open();
    _channel.configureBlocking(false);//from w w  w . jav  a 2  s . c  o m
    _channel.socket().setReuseAddress(true);
    _channel.connect(new InetSocketAddress(cfg.getRemoteHost(), cfg.getPort()));
    __channel = _channel;
    return new NioSession(this, _channel);
}

From source file:edu.tsinghua.lumaqq.qq.net.AbstractProxy.java

/**
 * //from  ww w .  j a  v a 2s  . com
 * 
 * @throws IOException
 */
public AbstractProxy(IProxyHandler handler) throws IOException {
    this.handler = handler;
    buffer = ByteBuffer.allocateDirect(300);
    username = password = "";
    connected = false;
    udp = false;

    socketChannel = SocketChannel.open();
    socketChannel.configureBlocking(false);
}

From source file:edu.tsinghua.lumaqq.qq.net.TCPPort.java

/**
 * ?TCPPort. /*from w w w  . j  a  va2  s .  co  m*/
 * 
 * @param address ?.
 * @throws IOException ?/??/?.
 */
public TCPPort(IConnectionPolicy policy, InetSocketAddress address) throws IOException {
    super(policy);
    channel = SocketChannel.open();
    channel.configureBlocking(false);
    this.remoteAddress = address;
    remoteClosed = false;
}