Example usage for java.nio.channels SelectionKey channel

List of usage examples for java.nio.channels SelectionKey channel

  1. HOME
  2. Java
  3. java
  4. java.nio.channels.*
  5. SelectionKey
  6. channel

Introduction

In this page you can find the example usage for java.nio.channels SelectionKey channel.

Prototype

public abstract SelectableChannel channel();

Source Link

Document

Returns the channel for which this key was created.

Usage

From source file:idgs.client.TcpClient.java

private void processWrite(SelectionKey key) throws IOException {
    log.debug("-------------process write-----------");
    SocketChannel channel = (SocketChannel) key.channel();
    handler.onWrite(channel);//from  w w  w .ja  va  2s.  c  o m
    log.debug("-------------end to process write-----------");
}

From source file:eu.stratosphere.nephele.taskmanager.bytebuffered.OutgoingConnectionThread.java

public void unsubscribeFromWriteEvent(SelectionKey selectionKey) throws IOException {

    final SocketChannel socketChannel = (SocketChannel) selectionKey.channel();
    final OutgoingConnection outgoingConnection = (OutgoingConnection) selectionKey.attachment();

    final SelectionKey newSelectionKey = socketChannel.register(this.selector, SelectionKey.OP_READ);
    newSelectionKey.attach(outgoingConnection);
    outgoingConnection.setSelectionKey(newSelectionKey);

    synchronized (this.connectionsToClose) {
        this.connectionsToClose.put(outgoingConnection, Long.valueOf(System.currentTimeMillis()));
    }/*w  ww  . j  a  v a2 s .  c  o m*/
}

From source file:org.apache.nifi.processor.util.listen.dispatcher.SocketChannelDispatcher.java

@Override
public void close() {
    stopped = true;/*from w ww . j  a  v a2 s . co m*/
    if (selector != null) {
        selector.wakeup();
    }

    if (executor != null) {
        executor.shutdown();
        try {
            // Wait a while for existing tasks to terminate
            if (!executor.awaitTermination(1000L, TimeUnit.MILLISECONDS)) {
                executor.shutdownNow();
            }
        } catch (InterruptedException ie) {
            // (Re-)Cancel if current thread also interrupted
            executor.shutdownNow();
            // Preserve interrupt status
            Thread.currentThread().interrupt();
        }
    }

    if (selector != null) {
        synchronized (selector.keys()) {
            for (SelectionKey key : selector.keys()) {
                IOUtils.closeQuietly(key.channel());
            }
        }
    }
    IOUtils.closeQuietly(selector);
}

From source file:idgs.client.TcpClient.java

private void processRead(SelectionKey key) throws IOException {
    log.debug("-------------begin to process read-----------");
    SocketChannel channel = (SocketChannel) key.channel();
    channel.configureBlocking(false);//from  ww  w  .j  a v  a  2 s  .co  m
    handler.onRead(channel);
    log.debug("-------------end to process read-----------");
}

From source file:org.pvalsecc.comm.MultiplexedServer.java

private void readyToSend(SelectionKey key) {
    SocketChannel socket = (SocketChannel) key.channel();
    ServerConnection connection = (ServerConnection) key.attachment();

    try {/*from   ww w  . ja v a2s.c  o  m*/
        nbBytesSent += connection.send(socket);
        nbSent++;
    } catch (IOException e) {
        connection.error("Cannot send data", e);
        key.cancel();
        SystemUtilities.safeClose(socket);
    }
}

From source file:org.apache.nifi.processor.util.listen.dispatcher.SocketChannelDispatcher.java

@Override
public int getPort() {
    // Return the port for the key listening for accepts
    for (SelectionKey key : selector.keys()) {
        if (key.isValid()) {
            final Channel channel = key.channel();
            if (channel instanceof ServerSocketChannel) {
                return ((ServerSocketChannel) channel).socket().getLocalPort();
            }//from w  ww. j a  v  a2s .  c  om
        }
    }
    return 0;
}

From source file:idgs.client.TcpClient.java

private void processConnect(SelectionKey key) throws IOException {
    if (!isConnected.get()) {
        if (key.isConnectable()) {
            channel = (SocketChannel) key.channel();
            if (channel.isConnectionPending()) {
                channel.finishConnect();
                channel.configureBlocking(false);
                isConnected.set(true);/*from ww w.  j  ava  2s  . c o  m*/
                log.debug("connected to server: " + host);
                handler.onConnected(channel);
            }
        }
    } else {
        log.debug("already connected...");
    }
}

From source file:org.openhab.io.transport.cul.internal.network.CULNetworkHandlerImpl.java

private void processConnect(SelectionKey key) throws Exception {
    SocketChannel ch = (SocketChannel) key.channel();
    if (ch.finishConnect()) {
        key.interestOps(key.interestOps() ^ SelectionKey.OP_CONNECT);
        key.interestOps(key.interestOps() | SelectionKey.OP_READ);
        reconnectInterval = INITIAL_RECONNECT_INTERVAL;
        connected.set(true);//from w ww .  ja  v a2s. c  o m
        onConnected();
    }
}

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

protected void __doExceptionEvent(final SelectionKey key, final Throwable e) {
    final INioSession _session = (INioSession) key.attachment();
    if (_session == null) {
        try {/*ww  w . ja  va 2 s .c om*/
            key.channel().close();
            key.cancel();
        } catch (Throwable ex) {
            _LOG.error(e.getMessage(), RuntimeUtils.unwrapThrow(ex));
        }
    } else {
        _session.status(ISession.Status.ERROR);
    }
    __eventGroup.executorService().submit(new Runnable() {
        public void run() {
            try {
                __eventGroup.listener().onExceptionCaught(e, _session);
            } catch (Throwable ex) {
                _LOG.error(e.getMessage(), RuntimeUtils.unwrapThrow(ex));
            }
        }
    });
    if (_session != null) {
        try {
            _session.close();
        } catch (Throwable ex) {
            _LOG.error(e.getMessage(), RuntimeUtils.unwrapThrow(ex));
        }
    }
}

From source file:org.openhab.io.transport.cul.internal.network.CULNetworkHandlerImpl.java

private void processRead(SelectionKey key) throws Exception {
    ReadableByteChannel ch = (ReadableByteChannel) key.channel();

    int bytesOp = 0, bytesTotal = 0;
    while (readBuf.hasRemaining() && (bytesOp = ch.read(readBuf)) > 0) {
        bytesTotal += bytesOp;//  ww  w  . ja v  a2 s .  co  m
    }
    logger.debug("Read {} bytes from network", bytesTotal);

    if (bytesTotal > 0) {
        readBuf.flip();
        onRead(readBuf);
        readBuf.compact();
    } else if (bytesOp == -1) {
        logger.info("peer closed read channel");
        ch.close();
    }
}