Example usage for io.netty.channel ChannelHandlerContext channel

List of usage examples for io.netty.channel ChannelHandlerContext channel

  1. HOME
  2. Java
  3. io.netty
  4. io.netty.channel.*
  5. ChannelHandlerContext
  6. channel

Introduction

In this page you can find the example usage for io.netty.channel ChannelHandlerContext channel.

Prototype

Channel channel();

Source Link

Document

Return the Channel which is bound to the ChannelHandlerContext .

Usage

From source file:com.ebay.jetstream.http.netty.server.HttpRequestHandler.java

License:MIT License

@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {

    if (LOGGER.isDebugEnabled()) {
        debug("Rcvr Session created to host - "
                + ((InetSocketAddress) ctx.channel().remoteAddress()).getHostName());
    }/*from ww  w  .j  a va  2s . c  om*/

    super.channelActive(ctx);
}

From source file:com.ebay.jetstream.http.netty.server.HttpRequestHandler.java

License:MIT License

@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {

    if (LOGGER.isDebugEnabled()) {
        debug("EventProducerSessionHandler -> session closed to host - "
                + ((InetSocketAddress) ctx.channel().remoteAddress()).getHostName());
    }/*from  www .  j a  va2s.  co m*/

    super.channelInactive(ctx);

}

From source file:com.ebay.jetstream.http.netty.server.HttpRequestHandler.java

License:MIT License

private void processHttpRequest(HttpRequest message, ChannelHandlerContext ctx) throws Exception {

    if (LOGGER.isDebugEnabled()) {
        debugHeadersAndCookies(message);
    }//from  www .j a v a  2s. c o m

    // Expect: 100-continue should be handled by HttpObjectAggregator.
    ByteBuf buf = ((FullHttpMessage) message).content();
    m_totalContentLength.addAndGet(buf.readableBytes());
    m_server.processHttpRequest(message, ctx.channel());
}

From source file:com.ebay.jetstream.messaging.transport.netty.autoflush.handler.NettyAutoFlushBatcher.java

License:MIT License

@Override
public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {

    if (!ctx.channel().isActive()) {

        ReferenceCountUtil.release(msg);

        // we might get here as channel is closed but upstream has not been notified yet. It could be still sending us events.
        // in such a case we will inform the future and send an exception upstream

        Throwable cause = new Exception("passed channel not active - "
                + ((InetSocketAddress) ctx.channel().remoteAddress()).getAddress().getHostAddress());

        promise.setFailure(cause);//from  ww w  . j  a  v  a 2s .c o  m

        ctx.fireExceptionCaught(cause);

        return;
    }

    AutoFlushWriterChannelQueue queue = m_channelQueue.get(ctx.channel());

    if (queue == null) {
        queue = new AutoFlushWriterChannelQueue(m_maxFlushBufferSz.get());
        queue.setChannelHandlerContext(ctx);
        m_channelQueue.put(ctx.channel(), queue);
    }

    MessageEvent e = new MessageEvent(msg, promise);

    queue.add(e);

    if (queue.isTimeToFlush()) {

        flush(ctx, queue);

    }

}

From source file:com.ebay.jetstream.messaging.transport.netty.autoflush.handler.NettyAutoFlushBatcher.java

License:MIT License

/**
 * @param ctx//from www.  ja  v  a2  s  .  c  o  m
 * @param queue
 */
public void flush(ChannelHandlerContext ctx, AutoFlushWriterChannelQueue queue) {

    if (queue == null)
        return;

    MessageEvent[] events = queue.get();

    if (events == null)
        return;

    ByteBuf[] msgs = new ByteBuf[events.length];

    for (int j = 0; j < events.length; j++) {
        msgs[j] = (ByteBuf) events[j].getMsg();
    }

    try {
        ByteBuf composite = Unpooled.wrappedBuffer(msgs);

        ChannelPromise promise = new ExtendedChannelPromise(ctx.channel());

        promise.addListener(new AutoFlushWriterChannelListener(events));

        queue.setLastFlushTime(System.currentTimeMillis());

        super.write(ctx, composite, promise);
        super.flush(ctx);

    } catch (Throwable t) {
        LOGGER.error("Error while Flushing : " + Arrays.toString(t.getStackTrace()));
    }

}

From source file:com.ebay.jetstream.messaging.transport.netty.autoflush.handler.NettyAutoFlushBatcher.java

License:MIT License

/**
 * Calls {@link ChannelHandlerContext#disconnect(ChannelPromise)} to forward
 * to the next {@link ChannelOutboundHandler} in the {@link ChannelPipeline}.
 *
 * Sub-classes may override this method to change behavior.
 *///w  ww.ja va  2 s .c o  m
@Override
public void disconnect(ChannelHandlerContext ctx, ChannelPromise promise) throws Exception {
    try {
        flush(ctx, m_channelQueue.get(ctx.channel()));
        m_channelQueue.remove(ctx.channel());
    } finally {
        ctx.disconnect(promise);
    }

}

From source file:com.ebay.jetstream.messaging.transport.netty.autoflush.handler.NettyAutoFlushBatcher.java

License:MIT License

@Override
public void close(ChannelHandlerContext ctx, ChannelPromise promise) throws Exception {

    AutoFlushWriterChannelQueue queue = m_channelQueue.remove(ctx.channel());

    if (queue == null) {

        return;//from w  ww.j a v  a 2s .  com
    }

    MessageEvent[] events = queue.get();

    if (events == null) {
        ctx.close();
        return;
    }

    Throwable cause = new ClosedChannelException();

    for (int i = 0; i < events.length; i++) {

        MessageEvent ev = events[i];

        ReferenceCountUtil.release(ev.getMsg());

        ev.getPromise().setFailure(cause);

    }

    super.close(ctx, promise);

}

From source file:com.ebay.jetstream.messaging.transport.netty.autoflush.handler.NettyAutoFlushBatcher.java

License:MIT License

@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {

    AutoFlushWriterChannelQueue queue = m_channelQueue.remove(ctx.channel());

    if (queue == null) {
        ctx.fireChannelInactive();/*from w w w  . ja  v a 2 s .c  o  m*/
        return;
    }

    MessageEvent[] events = queue.get();

    if (events == null) {
        ctx.fireChannelInactive();
        return;
    }

    Throwable cause = new ClosedChannelException();

    for (int i = 0; i < events.length; i++) {

        MessageEvent ev = events[i];

        Promise promise = ev.getPromise();

        if (promise != null)
            promise.setFailure(cause);

        ((ByteBuf) ev.getMsg()).release();

    }

    if (queue != null) {
        queue.clear();

    }

    ctx.fireChannelInactive();
}

From source file:com.ebay.jetstream.messaging.transport.netty.autoflush.handler.NettyAutoFlushBatcher.java

License:MIT License

@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {

    LOGGER.error(cause.getLocalizedMessage(), cause);

    AutoFlushWriterChannelQueue queue = m_channelQueue.remove(ctx.channel());

    if (queue == null)
        return;/* w  w w .jav  a2 s.c  om*/

    MessageEvent[] events = queue.get();

    if (events == null)
        return;

    for (int i = 0; i < events.length; i++) {

        MessageEvent ev = events[i];

        Promise promise = ev.getPromise();

        if (promise != null)
            promise.setFailure(cause);

        ((ByteBuf) ev.getMsg()).release();

    }

    if (queue != null) {
        queue.clear();

    }

    super.exceptionCaught(ctx, cause);
}

From source file:com.ebay.jetstream.messaging.transport.netty.compression.MessageCompressionHandler.java

License:MIT License

/**
 * Invoked when {@link Channel#write(Object)} is called.
 *//*w  ww .j  a v a 2  s . c o m*/
public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {

    try {

        Attribute<Boolean> attr = ctx.channel().attr(EventProducer.m_eckey);

        Boolean enableCompression = attr.get();

        if ((enableCompression != null) && (enableCompression == true)) {

            ByteBuf chbuf = (ByteBuf) msg;

            int msglen = chbuf.readableBytes();
            ExtendedChannelPromise epromise = (ExtendedChannelPromise) promise;
            epromise.setRawBytes(msglen);

            byte[] compressed = Snappy.rawCompress(chbuf.readBytes(msglen).array(), msglen);

            epromise.setCompressedBytes(compressed.length + 4);
            chbuf.release(); // need to release the original buffer - do I need to check if this this a ref counted buffer

            ByteBuf sendbuf = ctx.alloc().buffer();

            sendbuf.writeInt(compressed.length);
            sendbuf.writeBytes(compressed);

            ctx.write(sendbuf, promise);

            m_totalMessagesCompressed.increment();

        } else {

            ctx.write(msg, promise);

        }

    } catch (Throwable t) {
        m_totalMessagesDropped.increment();
        LOGGER.debug("Failed to compress message - " + t.getLocalizedMessage());

    }

}