Examples of org.jboss.netty.channel.ChannelEvent

org.jboss.netty.channel.ChannelEvent
@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.landmark @apiviz.composedOf org.jboss.netty.channel.ChannelFuture

      Date newDate = new Date(newTime);
      slog("Hey Guys !  I got a date ! [" + date + "] and I modified it to [" + newDate + "]");
      // Send back the reponse
      Channel channel = e.getChannel();
      ChannelFuture channelFuture = Channels.future(e.getChannel());
      ChannelEvent responseEvent = new DownstreamMessageEvent(channel, channelFuture, newDate, channel.getRemoteAddress());
      ctx.sendDownstream(responseEvent);
      // But still send it upstream because there might be another handler
      super.messageReceived(ctx, e);
    }

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     *         if failed to receive a new message
     * @throws InterruptedException
     *         if the operation has been interrupted
     */
    public E read() throws IOException, InterruptedException {
        ChannelEvent e = readEvent();
        if (e == null) {
            return null;
        }


        if (e instanceof MessageEvent) {

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     *         if failed to receive a new message
     * @throws InterruptedException
     *         if the operation has been interrupted
     */
    public E read(long timeout, TimeUnit unit) throws IOException, InterruptedException {
        ChannelEvent e = readEvent(timeout, unit);
        if (e == null) {
            return null;
        }


        if (e instanceof MessageEvent) {

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            if (getQueue().isEmpty()) {
                return null;
            }
        }


        ChannelEvent e = getQueue().take();
        if (e instanceof ChannelStateEvent) {
            // channelClosed has been triggered.
            assert closed;
            return null;
        } else {

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            if (getQueue().isEmpty()) {
                return null;
            }
        }


        ChannelEvent e = getQueue().poll(timeout, unit);
        if (e == null) {
            throw new BlockingReadTimeoutException();
        } else if (e instanceof ChannelStateEvent) {
            // channelClosed has been triggered.
            assert closed;

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     * make sure important tasks are not counted.
     */
    protected boolean shouldCount(Runnable task) {
        if (task instanceof ChannelEventRunnable) {
            ChannelEventRunnable r = (ChannelEventRunnable) task;
            ChannelEvent e = r.getEvent();
            if (e instanceof WriteCompletionEvent) {
                return false;
            } else if (e instanceof ChannelStateEvent) {
                if (((ChannelStateEvent) e).getState() == ChannelState.INTEREST_OPS) {
                    return false;

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    @Test
    public void testReleaseExternalResourceViaUpstreamEvent() throws Exception {
        
        Channel channel = createMock(Channel.class);
        expect(channel.isOpen()).andReturn(true).anyTimes();
        ChannelEvent event = createMock(ChannelEvent.class);
        expect(event.getChannel()).andReturn(channel).anyTimes();
        expect(event.getFuture()).andReturn(new DefaultChannelFuture(channel,false)).anyTimes();
        replay(channel, event);
        
        final CountDownLatch latch = new CountDownLatch(1);
        
        OrderedMemoryAwareThreadPoolExecutor executor = new OrderedMemoryAwareThreadPoolExecutor(10, 0L, 0L);

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    @Test
    public void testReleaseExternalResourceViaDownstreamEvent() throws Exception {
        Channel channel = createMock(Channel.class);
        expect(channel.getCloseFuture()).andReturn(new DefaultChannelFuture(channel, false));
        ChannelEvent event = createMock(ChannelEvent.class);
        expect(event.getChannel()).andReturn(channel).anyTimes();
        expect(event.getFuture()).andReturn(new DefaultChannelFuture(channel,false)).anyTimes();
        


        replay(channel, event);


        final CountDownLatch latch = new CountDownLatch(1);

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        for (Runnable task: tasks) {
            if (task instanceof ChannelEventRunnable) {
                if (cause == null) {
                    cause = new IOException("Unable to process queued event");
                }
                ChannelEvent event = ((ChannelEventRunnable) task).getEvent();
                event.getFuture().setFailure(cause);


                if (channels == null) {
                    channels = new HashSet<Channel>();
                }


                // store the Channel of the event for later notification of the exceptionCaught event
                channels.add(event.getChannel());
            }
        }


        // loop over all channels and fire an exceptionCaught event
        if (channels != null) {

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     * make sure important tasks are not counted.
     */
    protected boolean shouldCount(Runnable task) {
        if (task instanceof ChannelUpstreamEventRunnable) {
            ChannelUpstreamEventRunnable r = (ChannelUpstreamEventRunnable) task;
            ChannelEvent e = r.getEvent();
            if (e instanceof WriteCompletionEvent) {
                return false;
            } else if (e instanceof ChannelStateEvent) {
                if (((ChannelStateEvent) e).getState() == ChannelState.INTEREST_OPS) {
                    return false;

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Related Classes of org.jboss.netty.channel.ChannelEvent

org.helios.netty.examples.DateModifier$ServerDateHandler

org.jboss.netty.handler.execution.ExecutionHandlerTest

org.jboss.netty.handler.execution.MemoryAwareThreadPoolExecutor

org.jboss.netty.handler.queue.BlockingReadHandler

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