Example usage for java.nio.channels Selector open

Introduction

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

Prototype

public static Selector open() throws IOException 

Source Link

Document

Opens a selector.

Usage

From source file:kilim.nio.MultiNioSelectorThreadScheduler.java

private SelectorThread newSelectorThread(String namePostFix) throws IOException {
    Selector sel = Selector.open();
    SelectorThread result = new SelectorThread(namePostFix, sel, this);
    result.start();/*from   w w w .j a va  2 s .c  om*/
    Task t = new RegistrationTask(result.registrationMbx, sel, result);
    t.setScheduler(this);
    t.start();
    return result;
}

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

public IncomingConnectionThread(ByteBufferedChannelManager byteBufferedChannelManager,
        boolean isListeningThread, InetSocketAddress listeningAddress) throws IOException {
    super("Incoming Connection Thread");

    this.selector = Selector.open();
    this.byteBufferedChannelManager = byteBufferedChannelManager;

    if (isListeningThread) {
        this.listeningSocket = ServerSocketChannel.open();
        this.listeningSocket.configureBlocking(false);
        listeningSocket.register(this.selector, SelectionKey.OP_ACCEPT);
        this.listeningSocket.socket().bind(listeningAddress);
        LOG.debug("Listening on " + this.listeningSocket.socket().getLocalSocketAddress());
    } else {/*w  ww .  ja va 2s . c  o m*/
        this.listeningSocket = null;
    }
}

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

/** Constructor - creates a new NIO Selector */
public NIOSocketSelector(EventLoop eventLoop) throws IOException {
    _eventLoop = eventLoop;
    _selector = Selector.open();
}

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From source file:net.sf.cindy.impl.SimpleEventGenerator.java

protected void doStart() {
    try {//from   w ww  . jav  a2s . c  o  m
        if (log.isTraceEnabled())
            log.trace("start EventGenerator " + id);
        lastSelectTime = null;
        register.clear();
        close = false;
        selector = Selector.open();
        thread = new Thread() {

            public void run() {
                SimpleEventGenerator.this.run();
            }
        };
        thread.setName(Utils.getClassSimpleName(getClass()) + id);
        thread.setPriority(priority);
        thread.start();
    } catch (IOException e) {
        log.error(e, e);
    }
}

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From source file:com.openteach.diamond.network.waverider.network.DefaultNetWorkServer.java

@Override
public boolean init() {
    try {/*from w ww .j  a  v a 2 s .  c  o  m*/
        selector = Selector.open();
        serverSocketChannel = ServerSocketChannel.open();
        serverSocketChannel.configureBlocking(false);
        serverSocketChannel.socket()
                .bind(hostName == null ? new InetSocketAddress(port) : new InetSocketAddress(hostName, port));
        serverSocketChannel.register(selector, SelectionKey.OP_ACCEPT);

        // ??
        // ?, socket?
        //readerExecutor = Executors.newFixedThreadPool(1, new WaveriderThreadFactory(NET_WORK_READER, null, true));
        //writerExecutor = Executors.newFixedThreadPool(1, new WaveriderThreadFactory(NET_WORK_WRITER, null, true));

        // ?
        netWorkServerThread = new Thread(this, NET_WORK_SERVER_THREAD_NAME);
        netWorkServerThread.setDaemon(true);
    } catch (IOException e) {
        logger.error("Init DefaultNetworkServer failed: ", e);
        throw new RuntimeException(e);
    }

    return true;
}

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From source file:SystemUtils.java

public static final Selector openSelector() throws IOException {
    Selector result = null;//  w w w. j a  va  2s  .c  o m
    // check if it is linux os
    if (SystemUtils.isLinuxPlatform()) {
        try {
            Class<?> providerClazz = Class.forName("sun.nio.ch.EPollSelectorProvider");
            if (providerClazz != null) {
                try {
                    Method method = providerClazz.getMethod("provider");
                    if (method != null) {
                        SelectorProvider selectorProvider = (SelectorProvider) method.invoke(null);
                        if (selectorProvider != null) {
                            result = selectorProvider.openSelector();
                        }
                    }
                } catch (Exception e) {
                    // ignore
                }
            }
        } catch (Exception e) {
            // ignore
        }
    }
    if (result == null) {
        result = Selector.open();
    }
    return result;

}

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From source file:com.alibaba.napoli.gecko.core.util.SelectorFactory.java

/**
 * Increase <code>Selector</code> pool size
 *//*www  .  j av  a2s.c  o m*/
private static void grow(int size) throws IOException {
    for (int i = 0; i < size - maxSelectors; i++) {
        selectors.add(Selector.open());
    }
}

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From source file:oz.hadoop.yarn.api.net.AbstractSocketHandler.java

/**
 * Will asynchronously start this socket handler (client or server)
 * returning the {@link SocketAddress} which represents server address for 
 * clients and bind address for server. See {@link ApplicationContainerServerImpl} and {@link ApplicationContainerClientImpl}
 *//*from  w  ww. j ava 2  s  .c  o m*/
public InetSocketAddress start() {
    InetSocketAddress serverAddress = this.address;
    try {
        if (this.selector == null) {
            this.selector = Selector.open();
            this.init();
            this.executor.execute(this.listenerTask);
            if (logger.isDebugEnabled()) {
                logger.debug("Started listener for " + AbstractSocketHandler.this.getClass().getSimpleName());
            }
            serverAddress = (InetSocketAddress) this.rootChannel.getLocalAddress();
        }
    } catch (IOException e) {
        throw new IllegalStateException("Failed to start " + this.getClass().getName(), e);
    }
    return serverAddress;
}

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From source file:org.apache.synapse.transport.udp.IODispatcher.java

/**
 * Constructor./*from   w  w  w.ja  v a  2  s .  c  om*/
 * 
 * @param workerPool the worker pool to dispatch processing task to
 * @throws IOException if the {@link Selector} instance could not be created
 */
public IODispatcher(WorkerPool workerPool) throws IOException {
    this.workerPool = workerPool;
    selector = Selector.open();
}

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From source file:org.cloudata.core.commitlog.WorkerPool.java

Worker(WorkerPool workerPool, int workerNo, int port, AsyncFileWriter asyncWriter) throws IOException {
    this.workerNo = workerNo;
    this.port = port;
    this.workerPool = workerPool;
    this.asyncWriter = asyncWriter;

    this.setName("Worker #" + workerNo + " on " + port);
    selector = Selector.open();
}

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