Example usage for java.nio.channels SocketChannel socket

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

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Introduction

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

Prototype

public abstract Socket socket();

Source Link

Document

Retrieves a socket associated with this channel.

Usage

From source file:MainClass.java

public static void main(String[] argv) throws Exception {
    int port = 1234; // default

    ByteBuffer buffer = ByteBuffer.wrap(GREETING.getBytes());
    ServerSocketChannel ssc = ServerSocketChannel.open();

    ssc.socket().bind(new InetSocketAddress(port));
    ssc.configureBlocking(false);//from  w w  w.ja  va 2  s  . co m

    while (true) {
        System.out.println("Waiting for connections");

        SocketChannel sc = ssc.accept();

        if (sc == null) {
            Thread.sleep(2000);
        } else {
            System.out.println("Incoming connection from: " + sc.socket().getRemoteSocketAddress());

            buffer.rewind();
            sc.write(buffer);
            sc.close();
        }
    }
}

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

private static void setClientSocketOptions(SocketChannel channel) throws IOException {
    channel.socket().setTcpNoDelay(true);
    channel.configureBlocking(false);/* w  ww .j a v  a  2 s. c  o  m*/
}

From source file:me.xingrz.prox.tcp.tunnel.RemoteTunnel.java

private static SocketChannel makeChannel() throws IOException {
    SocketChannel channel = SocketChannel.open();
    channel.configureBlocking(false);/* www.j ava 2s  .  co m*/
    channel.socket().bind(new InetSocketAddress(0));
    return channel;
}

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

private static void setClientSocketOptions(SocketChannel channel) throws IOException {
    channel.socket().setPerformancePreferences(0, 1, 3);
    channel.socket().setTcpNoDelay(true);
    probeAndSetSize(false, 2 << 16, 2 << 10, channel);
    probeAndSetSize(true, 2 << 15, 2 << 10, channel);
    channel.configureBlocking(false);// w  w  w.j a  va 2 s.co  m
}

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

private static void setClientSocketOptions(SocketChannel channel) throws IOException {
    channel.socket().setPerformancePreferences(0, 1, 3);
    channel.socket().setTcpNoDelay(true);
    channel.socket().setSoLinger(false, 0);
    channel.socket().setKeepAlive(true);
    probeAndSetSize(false, 2 << 16, 2 << 10, channel);
    probeAndSetSize(true, 2 << 15, 2 << 10, channel);
    channel.configureBlocking(false);/*  ww w.j  ava  2  s.co m*/
}

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

private static void probeAndSetSize(boolean sendSize, int targetSize, int minSize, SocketChannel channel)
        throws IOException {

    if (sendSize && channel.socket().getSendBufferSize() >= targetSize) {
        //System.out.println("SendSize is Already:" + channel.socket().getSendBufferSize());
        return;/*from w ww . ja  v  a 2 s .  c  om*/
    } else if (!sendSize && channel.socket().getReceiveBufferSize() >= targetSize) {
        //System.out.println("RcvSize is Already:" + channel.socket().getReceiveBufferSize());
        return;
    }

    do {

        int sizeOut = 0;
        if (sendSize) {
            channel.socket().setSendBufferSize(targetSize);
            sizeOut = channel.socket().getSendBufferSize();
        } else {
            channel.socket().setReceiveBufferSize(targetSize);
            sizeOut = channel.socket().getReceiveBufferSize();
        }
        if (sizeOut == targetSize)
            break;
        targetSize >>= 1;
    } while (targetSize > minSize);

}

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

private static void probeAndSetSize(boolean sendSize, int targetSize, int minSize, SocketChannel channel)
        throws IOException {

    if (sendSize && channel.socket().getSendBufferSize() >= targetSize) {
        // System.out.println("SendSize is Already:" +
        // channel.socket().getSendBufferSize());
        return;/*from ww  w .j  av a2  s .c  o  m*/
    } else if (!sendSize && channel.socket().getReceiveBufferSize() >= targetSize) {
        // System.out.println("RcvSize is Already:" +
        // channel.socket().getReceiveBufferSize());
        return;
    }

    do {

        int sizeOut = 0;
        if (sendSize) {
            channel.socket().setSendBufferSize(targetSize);
            sizeOut = channel.socket().getSendBufferSize();
        } else {
            channel.socket().setReceiveBufferSize(targetSize);
            sizeOut = channel.socket().getReceiveBufferSize();
        }
        if (sizeOut == targetSize)
            break;
        targetSize >>= 1;
    } while (targetSize > minSize);

}

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

private static SocketChannel createSocketChannel(final SocketAddress sockAddr, final boolean blocking,
        final int rcvbufSize) {
    final SocketChannel ch;
    try {/*from   ww  w  .ja v  a  2 s .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);
        }
    }
    final boolean connected;
    try {
        connected = ch.connect(sockAddr);
    } catch (IOException e) {
        LOG.error("Failed to connect socket: " + sockAddr, e);
        throw new IllegalStateException(e);
    }
    if (!connected) {
        throw new IllegalStateException("Failed to connect: " + sockAddr);
    }
    return ch;
}

From source file:gridool.util.xfer.TransferUtils.java

public static void send(@Nonnull final FastByteArrayOutputStream data, @Nonnull final String fileName,
        @Nullable final String writeDirPath, @Nonnull final InetAddress dstAddr, final int dstPort,
        final boolean append, final boolean sync, @Nullable final TransferClientHandler handler)
        throws IOException {
    final SocketAddress dstSockAddr = new InetSocketAddress(dstAddr, dstPort);
    SocketChannel channel = null;
    Socket socket = null;/*w w w .j  a v a2  s  . c o  m*/
    final OutputStream out;
    try {
        channel = SocketChannel.open();
        socket = channel.socket();
        socket.connect(dstSockAddr);
        out = socket.getOutputStream();
    } catch (IOException e) {
        LOG.error("failed to connect: " + dstSockAddr, e);
        IOUtils.closeQuietly(channel);
        NetUtils.closeQuietly(socket);
        throw e;
    }

    DataInputStream din = null;
    if (sync) {
        InputStream in = socket.getInputStream();
        din = new DataInputStream(in);
    }
    final DataOutputStream dos = new DataOutputStream(out);
    final StopWatch sw = new StopWatch();
    try {
        IOUtils.writeString(fileName, dos);
        IOUtils.writeString(writeDirPath, dos);
        long nbytes = data.size();
        dos.writeLong(nbytes);
        dos.writeBoolean(append);
        dos.writeBoolean(sync);
        if (handler == null) {
            dos.writeBoolean(false);
        } else {
            dos.writeBoolean(true);
            handler.writeAdditionalHeader(dos);
        }

        // send file using zero-copy send
        data.writeTo(out);

        if (LOG.isDebugEnabled()) {
            LOG.debug("Sent a file data '" + fileName + "' of " + nbytes + " bytes to " + dstSockAddr.toString()
                    + " in " + sw.toString());
        }

        if (sync) {// receive ack in sync mode
            long remoteRecieved = din.readLong();
            if (remoteRecieved != nbytes) {
                throw new IllegalStateException(
                        "Sent " + nbytes + " bytes, but remote node received " + remoteRecieved + " bytes");
            }
        }
    } catch (FileNotFoundException e) {
        LOG.error(PrintUtils.prettyPrintStackTrace(e, -1));
        throw e;
    } catch (IOException e) {
        LOG.error(PrintUtils.prettyPrintStackTrace(e, -1));
        throw e;
    } finally {
        IOUtils.closeQuietly(din, dos);
        IOUtils.closeQuietly(channel);
        NetUtils.closeQuietly(socket);
    }
}

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.ja v a  2  s  .  co  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;
}