Java Code Examples for org.jboss.netty.channel.Channels#fireExceptionCaught()

The following examples show how to use org.jboss.netty.channel.Channels#fireExceptionCaught() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ThriftFrameDecoder.java    From ikasoa with MIT License 6 votes vote down vote up 
protected ChannelBuffer tryDecodeFramedMessage(ChannelHandlerContext ctx, Channel channel, ChannelBuffer buffer,
		boolean stripFraming) {

	int messageStartReaderIndex = buffer.readerIndex();
	int messageContentsOffset = stripFraming ? messageStartReaderIndex + MESSAGE_FRAME_SIZE
			: messageStartReaderIndex;
	int messageLength = buffer.getInt(messageStartReaderIndex) + MESSAGE_FRAME_SIZE;
	int messageContentsLength = messageStartReaderIndex + messageLength - messageContentsOffset;

	if (messageContentsLength > maxFrameSize)
		Channels.fireExceptionCaught(ctx,
				new TooLongFrameException(String.format("Maximum frame size of %d exceeded .", maxFrameSize)));

	if (messageLength == 0) {
		buffer.readerIndex(messageContentsOffset);
		return null;
	} else if (buffer.readableBytes() < messageLength)
		return null;
	else {
		ChannelBuffer messageBuffer = extractFrame(buffer, messageContentsOffset, messageContentsLength);
		buffer.readerIndex(messageStartReaderIndex + messageLength);
		return messageBuffer;
	}
}
Example 2
Source File: AbstractRPCChannelHandler.java    From floodlight_with_topoguard with Apache License 2.0 6 votes vote down vote up 
@Override
public void messageReceived(ChannelHandlerContext ctx,
                            MessageEvent e) throws Exception {
    Object message = e.getMessage();
    if (message instanceof SyncMessage) {
        handleSyncMessage((SyncMessage)message, ctx.getChannel());
    } else if (message instanceof List) {
        for (Object i : (List<?>)message) {
            if (i instanceof SyncMessage) {
                try {
                    handleSyncMessage((SyncMessage)i,
                                         ctx.getChannel());
                } catch (Exception ex) {
                    Channels.fireExceptionCaught(ctx, ex);
                }
            }
        }
    } else {
        handleUnknownMessage(ctx, message);
    }
}
Example 3
Source File: ThriftFrameDecoder.java    From ikasoa with MIT License 5 votes vote down vote up 
protected ChannelBuffer tryDecodeUnframedMessage(ChannelHandlerContext ctx, Channel channel, ChannelBuffer buffer,
		TProtocolFactory inputProtocolFactory) throws TException {

	int messageLength = 0;
	int messageStartReaderIndex = buffer.readerIndex();

	try {
		TNettyTransport decodeAttemptTransport = new TNettyTransport(channel, buffer, TNettyTransportType.UNFRAMED);
		int initialReadBytes = decodeAttemptTransport.getReadByteCount();
		TProtocol inputProtocol = inputProtocolFactory.getProtocol(decodeAttemptTransport);
		inputProtocol.readMessageBegin();
		TProtocolUtil.skip(inputProtocol, TType.STRUCT);
		inputProtocol.readMessageEnd();
		messageLength = decodeAttemptTransport.getReadByteCount() - initialReadBytes;
	} catch (TTransportException | IndexOutOfBoundsException e) {
		return null;
	} finally {
		if (buffer.readerIndex() - messageStartReaderIndex > maxFrameSize)
			Channels.fireExceptionCaught(ctx,
					new TooLongFrameException(String.format("Maximum frame size of %d exceeded .", maxFrameSize)));
		buffer.readerIndex(messageStartReaderIndex);
	}

	if (messageLength <= 0)
		return null;

	ChannelBuffer messageBuffer = extractFrame(buffer, messageStartReaderIndex, messageLength);
	buffer.readerIndex(messageStartReaderIndex + messageLength);
	return messageBuffer;
}
Example 4
Source File: ThriftFrameEncoder.java    From ikasoa with MIT License 5 votes vote down vote up 
@Override
protected Object encode(ChannelHandlerContext ctx, Channel channel, Object msg) throws Exception {

	if (!(msg instanceof TNettyMessage))
		return msg;

	TNettyMessage message = (TNettyMessage) msg;

	int frameSize = message.getBuffer().readableBytes();

	if (message.getBuffer().readableBytes() > maxFrameSize) {
		Channels.fireExceptionCaught(ctx,
				new TooLongFrameException(String.format(
						"Frame size exceeded on encode: frame was %d bytes, maximum allowed is %d bytes .",
						frameSize, maxFrameSize)));
		return null;
	}

	switch (message.getTransportType()) {
	case UNFRAMED:
		return message.getBuffer();
	case FRAMED:
		ChannelBuffer frameSizeBuffer = ChannelBuffers.buffer(4);
		frameSizeBuffer.writeInt(message.getBuffer().readableBytes());
		return ChannelBuffers.wrappedBuffer(frameSizeBuffer, message.getBuffer());
	case HEADER:
		throw new UnsupportedOperationException("Header transport is not supported .");
	case HTTP:
		throw new UnsupportedOperationException("HTTP transport is not supported .");
	default:
		throw new UnsupportedOperationException("Unrecognized transport type .");
	}
}
Example 5
Source File: HandshakeTimeoutHandler.java    From floodlight_with_topoguard with Apache License 2.0 5 votes vote down vote up 
@Override
public void run(Timeout timeout) throws Exception {
    if (timeout.isCancelled()) {
        return;
    }

    if (!ctx.getChannel().isOpen()) {
        return;
    }
    if (!handler.isClientConnection && 
        ((handler.remoteNode == null ||
         !handler.rpcService.isConnected(handler.remoteNode.
                                         getNodeId()))))
        Channels.fireExceptionCaught(ctx, EXCEPTION);
}
Example 6
Source File: HandshakeTimeoutHandler.java    From floodlight_with_topoguard with Apache License 2.0 5 votes vote down vote up 
@Override
public void run(Timeout timeout) throws Exception {
    if (timeout.isCancelled()) {
        return;
    }

    if (!ctx.getChannel().isOpen()) {
        return;
    }
    if (!channelHandler.isHandshakeComplete())
        Channels.fireExceptionCaught(ctx, EXCEPTION);
}
Example 7
Source File: OFControllerChannelHandler.java    From FlowSpaceFirewall with Apache License 2.0 5 votes vote down vote up 
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent e)
        throws Exception {
    if (e.getMessage() instanceof List) {
        @SuppressWarnings("unchecked")
        List<OFMessage> msglist = (List<OFMessage>)e.getMessage();

        for (OFMessage ofm : msglist) {
            
            try {
                                    // Do the actual packet processing
                state.processOFMessage(this, ofm);

            }
            catch (Exception ex) {
                // We are the last handler in the stream, so run the
                // exception through the channel again by passing in
                // ctx.getChannel().
                Channels.fireExceptionCaught(ctx.getChannel(), ex);
            }
        }

       
        // Flush all thread local queues etc. generated by this train
        // of messages.
        
    }
    else {
        Channels.fireExceptionCaught(ctx.getChannel(),
                                     new AssertionError("Message received from Channel is not a list"));
    }
}
Example 8
Source File: ControllerHandshakeTimeoutHandler.java    From FlowSpaceFirewall with Apache License 2.0 5 votes vote down vote up 
@Override
public void run(Timeout timeout) throws Exception {
    if (timeout.isCancelled()) {
        return;
    }

    if (!ctx.getChannel().isOpen()) {
        return;
    }
    if (!channelHandler.isHandshakeComplete())
        Channels.fireExceptionCaught(ctx, EXCEPTION);
}
Example 9
Source File: NettyDispatcher.java    From ikasoa with MIT License 4 votes vote down vote up 
private void onDispatchException(ChannelHandlerContext ctx, Throwable t) {
	Channels.fireExceptionCaught(ctx, t);
	closeChannel(ctx);
}
Example 10
Source File: OFChannelHandler.java    From floodlight_with_topoguard with Apache License 2.0 4 votes vote down vote up 
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent e)
        throws Exception {
    if (e.getMessage() instanceof List) {
        @SuppressWarnings("unchecked")
        List<OFMessage> msglist = (List<OFMessage>)e.getMessage();

        LoadMonitor.LoadLevel loadlevel;
        int packets_dropped = 0;
        int packets_allowed = 0;
        int lldps_allowed = 0;

        if (this.controller.overload_drop) {
            loadlevel = this.controller.loadmonitor.getLoadLevel();
        }
        else {
            loadlevel = LoadMonitor.LoadLevel.OK;
        }

        for (OFMessage ofm : msglist) {
            counters.messageReceived.updateCounterNoFlush();
            // Per-switch input throttling
            if (sw != null && sw.inputThrottled(ofm)) {
                counters.messageInputThrottled.updateCounterNoFlush();
                continue;
            }
            try {
                if (this.controller.overload_drop &&
                    !loadlevel.equals(LoadMonitor.LoadLevel.OK)) {
                    switch (ofm.getType()) {
                    case PACKET_IN:
                        switch (loadlevel) {
                        case VERYHIGH:
                            // Drop all packet-ins, including LLDP/BDDPs
                            packets_dropped++;
                            continue;
                        case HIGH:
                            // Drop all packet-ins, except LLDP/BDDPs
                            byte[] data = ((OFPacketIn)ofm).getPacketData();
                            if (data.length > 14) {
                                if (((data[12] == (byte)0x88) &&
                                     (data[13] == (byte)0xcc)) ||
                                    ((data[12] == (byte)0x89) &&
                                     (data[13] == (byte)0x42))) {
                                    lldps_allowed++;
                                    packets_allowed++;
                                    break;
                                }
                            }
                            packets_dropped++;
                            continue;
                        default:
                            // Load not high, go ahead and process msg
                            packets_allowed++;
                            break;
                        }
                        break;
                    default:
                        // Process all non-packet-ins
                        packets_allowed++;
                        break;
                    }
                }

                // Do the actual packet processing
                state.processOFMessage(this, ofm);

            }
            catch (Exception ex) {
                // We are the last handler in the stream, so run the
                // exception through the channel again by passing in
                // ctx.getChannel().
                Channels.fireExceptionCaught(ctx.getChannel(), ex);
            }
        }

        if (loadlevel != LoadMonitor.LoadLevel.OK) {
            if (log.isDebugEnabled()) {
                log.debug(
                    "Overload: Detected {}, packets dropped={}",
                    loadlevel.toString(), packets_dropped);
                log.debug(
                    "Overload: Packets allowed={} (LLDP/BDDPs allowed={})",
                    packets_allowed, lldps_allowed);
            }
        }
        // Flush all thread local queues etc. generated by this train
        // of messages.
        this.controller.flushAll();
    }
    else {
        Channels.fireExceptionCaught(ctx.getChannel(),
                                     new AssertionError("Message received from Channel is not a list"));
    }
}