Examples of SocketChannel

com.facebook.presto.jdbc.internal.netty.channel.socket.SocketChannel
A TCP/IP socket {@link Channel} which was either accepted by{@link ServerSocketChannel} or created by {@link ClientSocketChannelFactory}. @apiviz.landmark @apiviz.composedOf com.facebook.presto.jdbc.internal.netty.channel.socket.SocketChannelConfig
com.maverick.multiplex.SocketChannel
@author leeTODO To change the template for this generated type comment go to Window - Preferences - Java - Code Style - Code Templates
io.netty.channel.socket.SocketChannel
A TCP/IP socket {@link Channel} which was either accepted by{@link ServerSocketChannel} or created by {@link ClientSocketChannelFactory}. @apiviz.landmark @apiviz.composedOf io.netty.channel.socket.SocketChannelConfig
java.nio.channels.SocketChannel
A SocketChannel is a selectable channel for part abstraction of stream connecting socket. The socket method of this class can return the related Socket instance, which can handle the socket.
A socket channel is open but not connected when created by open method. After connected by calling the connect method, it will keep connected before closed. The connection is non-blocking that the connect method is for the initial connection and following finishConnect method is for the final steps of connection. The isConnectionPending method can tell the connection is blocked or not; the isConnected method can tell the socket is connected finally or not.

The shut down operation can be independent and asynchronous for input and output. The shutdownInput method is for input, and can make the following read operation fail as end of stream. If the input is shut down and another thread is pending in read operation, the read will end without effect and return end of stream. The shutdownOutput method is for output, and can make the following write operation throwing a ClosedChannelException. If the output is shut down and another is pending in a write operation, an AsynchronousCloseException will thrown to the pending thread.

Socket channels are thread-safe, no more than one thread can read or write at given time. The connect and finishConnect methods are concurrent each other, when they are processing, other read and write will block.
org.jboss.netty.channel.socket.SocketChannel
@author The Netty Project (netty-dev@lists.jboss.org) @author Trustin Lee (tlee@redhat.com) @version $Rev: 6 $, $Date: 2008-08-08 10:40:10 +0900 (Fri, 08 Aug 2008) $ @apiviz.composedOf org.jboss.netty.channel.socket.SocketChannelConfig

Examples of java.nio.channels.SocketChannel


        public void handle(SelectionKey key) throws ClosedChannelException, IOException {
            if(!key.isValid()) {
                return;
            }
            SocketChannel channel = (SocketChannel) key.channel();
            if(key.isReadable()) {
                if(doRead(channel, cmdBuffer)) {
                    key.interestOps(SelectionKey.OP_WRITE);
                } else {
                    key.selector().wakeup();

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Examples of java.nio.channels.SocketChannel

            return createSocketChannel(sockAddr, blocking, soRcvBufSize);
        }
    }


    private static SocketChannel createSocketChannel(final SocketAddress sockAddr, final boolean blocking, final int rcvbufSize) {
        final SocketChannel ch;
        try {
            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) {

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Examples of java.nio.channels.SocketChannel

  }


  @Test
  public void sendGarbageTest() throws IOException {
    InetSocketAddress socketAddress = new InetSocketAddress(PORT);
    SocketChannel channel = SocketChannel.open(socketAddress);
    channel.write(
        ByteBuffer.wrap(
            new byte[] {1, 1, 1, 1}  // garbage
        )
    );
    channel.close();
  }

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Examples of java.nio.channels.SocketChannel

    if (TRACE) trace("kryonet", "Connection listener removed: " + listener.getClass().getName());
  }


  void notifyConnected () {
    if (INFO) {
      SocketChannel socketChannel = tcp.socketChannel;
      if (socketChannel != null) {
        Socket socket = tcp.socketChannel.socket();
        if (socket != null) {
          InetSocketAddress remoteSocketAddress = (InetSocketAddress)socket.getRemoteSocketAddress();
          if (remoteSocketAddress != null) info("kryonet", this + " connected: " + remoteSocketAddress.getAddress());

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Examples of java.nio.channels.SocketChannel


  /**
   * Returns the IP address and port of the remote end of the TCP connection, or null if this connection is not connected.
   */
  public InetSocketAddress getRemoteAddressTCP () {
    SocketChannel socketChannel = tcp.socketChannel;
    if (socketChannel != null) {
      Socket socket = tcp.socketChannel.socket();
      if (socket != null) {
        return (InetSocketAddress)socket.getRemoteSocketAddress();
      }

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Examples of java.nio.channels.SocketChannel

    close();
    writeBuffer.clear();
    readBuffer.clear();
    readBuffer.flip();
    try {
      SocketChannel socketChannel = selector.provider().openSocketChannel();
      Socket socket = socketChannel.socket();
      socket.setTcpNoDelay(true);
      socket.setTrafficClass(IPTOS_LOWDELAY);
      socket.connect(remoteAddress, timeout); // Connect using blocking mode for simplicity.
      socketChannel.configureBlocking(false);
      this.socketChannel = socketChannel;


      selectionKey = socketChannel.register(selector, SelectionKey.OP_READ);
      selectionKey.attach(this);


      if (DEBUG) {
        debug("kryonet", "Port " + socketChannel.socket().getLocalPort() + "/TCP connected to: "
          + socketChannel.socket().getRemoteSocketAddress());
      }


      lastReadTime = lastWriteTime = System.currentTimeMillis();
    } catch (IOException ex) {
      close();

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Examples of java.nio.channels.SocketChannel

      throw ioEx;
    }
  }


  public Object readObject (Connection connection) throws IOException {
    SocketChannel socketChannel = this.socketChannel;
    if (socketChannel == null) throw new SocketException("Connection is closed.");


    if (currentObjectLength == 0) {
      // Read the length of the next object from the socket.
      if (!IntSerializer.canRead(readBuffer, true)) {
        readBuffer.compact();
        int bytesRead = socketChannel.read(readBuffer);
        readBuffer.flip();
        if (bytesRead == -1) throw new SocketException("Connection is closed.");
        lastReadTime = System.currentTimeMillis();


        if (!IntSerializer.canRead(readBuffer, true)) return null;
      }
      currentObjectLength = IntSerializer.get(readBuffer, true);


      if (currentObjectLength <= 0) throw new SerializationException("Invalid object length: " + currentObjectLength);
      if (currentObjectLength > readBuffer.capacity())
        throw new SerializationException("Unable to read object larger than read buffer: " + currentObjectLength);
    }


    int length = currentObjectLength;
    if (readBuffer.remaining() < length) {
      // Read the bytes for the next object from the socket.
      readBuffer.compact();
      int bytesRead = socketChannel.read(readBuffer);
      readBuffer.flip();
      if (bytesRead == -1) throw new SocketException("Connection is closed.");
      lastReadTime = System.currentTimeMillis();


      if (readBuffer.remaining() < length) return null;

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Examples of java.nio.channels.SocketChannel

      lastWriteTime = System.currentTimeMillis();
    }
  }


  private boolean writeToSocket (ByteBuffer buffer) throws IOException {
    SocketChannel socketChannel = this.socketChannel;
    if (socketChannel == null) throw new SocketException("Connection is closed.");


    while (buffer.hasRemaining()) {
      if (bufferPositionFix) {
        buffer.compact();
        buffer.flip();
      }
      if (socketChannel.write(buffer) == 0) break;
    }


    return !buffer.hasRemaining();
  }

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Examples of java.nio.channels.SocketChannel


  /**
   * This method is thread safe.
   */
  public int send (Connection connection, Object object) throws IOException {
    SocketChannel socketChannel = this.socketChannel;
    if (socketChannel == null) throw new SocketException("Connection is closed.");
    synchronized (writeLock) {
      tempWriteBuffer.clear();
      tempWriteBuffer.position(5); // Allow room for the data length.

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Examples of java.nio.channels.SocketChannel


          if ((ops & SelectionKey.OP_ACCEPT) == SelectionKey.OP_ACCEPT) {
            ServerSocketChannel serverChannel = this.serverChannel;
            if (serverChannel == null) continue;
            try {
              SocketChannel socketChannel = serverChannel.accept();
              if (socketChannel != null) acceptOperation(socketChannel);
            } catch (IOException ex) {
              if (DEBUG) debug("kryonet", "Unable to accept new connection.", ex);
            }
            continue;

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