| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.qpid.tests.protocol.v1_0; |
| |
| import java.nio.ByteBuffer; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Queue; |
| import java.util.concurrent.ConcurrentLinkedQueue; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.qpid.server.bytebuffer.QpidByteBuffer; |
| import org.apache.qpid.server.protocol.v1_0.ConnectionHandler; |
| import org.apache.qpid.server.protocol.v1_0.codec.ValueHandler; |
| import org.apache.qpid.server.protocol.v1_0.framing.FrameHandler; |
| import org.apache.qpid.server.protocol.v1_0.type.FrameBody; |
| import org.apache.qpid.server.protocol.v1_0.type.SaslFrameBody; |
| import org.apache.qpid.server.protocol.v1_0.type.UnsignedShort; |
| import org.apache.qpid.server.protocol.v1_0.type.codec.AMQPDescribedTypeRegistry; |
| import org.apache.qpid.server.protocol.v1_0.type.security.SaslChallenge; |
| import org.apache.qpid.server.protocol.v1_0.type.security.SaslCode; |
| import org.apache.qpid.server.protocol.v1_0.type.security.SaslInit; |
| import org.apache.qpid.server.protocol.v1_0.type.security.SaslMechanisms; |
| import org.apache.qpid.server.protocol.v1_0.type.security.SaslOutcome; |
| import org.apache.qpid.server.protocol.v1_0.type.security.SaslResponse; |
| import org.apache.qpid.server.protocol.v1_0.type.transport.Attach; |
| import org.apache.qpid.server.protocol.v1_0.type.transport.Begin; |
| import org.apache.qpid.server.protocol.v1_0.type.transport.ChannelFrameBody; |
| import org.apache.qpid.server.protocol.v1_0.type.transport.Close; |
| import org.apache.qpid.server.protocol.v1_0.type.transport.Detach; |
| import org.apache.qpid.server.protocol.v1_0.type.transport.Disposition; |
| import org.apache.qpid.server.protocol.v1_0.type.transport.End; |
| import org.apache.qpid.server.protocol.v1_0.type.transport.Error; |
| import org.apache.qpid.server.protocol.v1_0.type.transport.Flow; |
| import org.apache.qpid.server.protocol.v1_0.type.transport.Open; |
| import org.apache.qpid.server.protocol.v1_0.type.transport.Transfer; |
| import org.apache.qpid.tests.protocol.HeaderResponse; |
| import org.apache.qpid.tests.protocol.InputDecoder; |
| import org.apache.qpid.tests.protocol.Response; |
| |
| public class FrameDecoder implements InputDecoder |
| { |
| private static final Logger FRAME_LOGGER = LoggerFactory.getLogger("amqp.frame"); |
| private static final Logger LOGGER = LoggerFactory.getLogger(FrameDecoder.class); |
| private static final AMQPDescribedTypeRegistry TYPE_REGISTRY = AMQPDescribedTypeRegistry.newInstance() |
| .registerTransportLayer() |
| .registerMessagingLayer() |
| .registerTransactionLayer() |
| .registerSecurityLayer() |
| .registerExtensionSoleconnLayer(); |
| private final MyConnectionHandler _connectionHandler; |
| private volatile FrameHandler _frameHandler; |
| |
| private enum ParsingState |
| { |
| HEADER, |
| PERFORMATIVES; |
| } |
| |
| private final ValueHandler _valueHandler; |
| |
| private volatile ParsingState _state = ParsingState.HEADER; |
| |
| public FrameDecoder(final boolean isSasl) |
| { |
| _valueHandler = new ValueHandler(TYPE_REGISTRY); |
| _connectionHandler = new MyConnectionHandler(); |
| _frameHandler = new FrameHandler(_valueHandler, _connectionHandler, isSasl); |
| } |
| |
| @Override |
| public Collection<Response<?>> decode(final ByteBuffer inputBuffer) |
| { |
| |
| QpidByteBuffer qpidByteBuffer = QpidByteBuffer.wrap(inputBuffer); |
| int remaining; |
| |
| do |
| { |
| remaining = qpidByteBuffer.remaining(); |
| switch(_state) |
| { |
| case HEADER: |
| if (inputBuffer.remaining() >= 8) |
| { |
| byte[] header = new byte[8]; |
| inputBuffer.get(header); |
| |
| HeaderResponse headerResponse = new HeaderResponse(header); |
| FRAME_LOGGER.debug("RECV:" + headerResponse); |
| _connectionHandler._responseQueue.add(headerResponse); |
| _state = ParsingState.PERFORMATIVES; |
| } |
| break; |
| case PERFORMATIVES: |
| _frameHandler.parse(qpidByteBuffer); |
| break; |
| default: |
| throw new IllegalStateException("Unexpected state : " + _state); |
| } |
| } |
| while (qpidByteBuffer.remaining() != remaining); |
| |
| List<Response<?>> responses = new ArrayList<>(); |
| Response<?> r; |
| while((r = _connectionHandler._responseQueue.poll())!=null) |
| { |
| responses.add(r); |
| } |
| return responses; |
| } |
| |
| private void resetInputHandlerAfterSaslOutcome() |
| { |
| _state = ParsingState.HEADER; |
| _frameHandler = new FrameHandler(_valueHandler, _connectionHandler, false); |
| } |
| |
| private class MyConnectionHandler implements ConnectionHandler |
| { |
| private final Queue<Response<?>> _responseQueue = new ConcurrentLinkedQueue<>(); |
| private volatile int _frameSize = 512; |
| |
| @Override |
| public void receiveOpen(final int channel, final Open close) |
| { |
| } |
| |
| @Override |
| public void receiveClose(final int channel, final Close close) |
| { |
| |
| } |
| |
| @Override |
| public void receiveBegin(final int channel, final Begin begin) |
| { |
| |
| } |
| |
| @Override |
| public void receiveEnd(final int channel, final End end) |
| { |
| |
| } |
| |
| @Override |
| public void receiveAttach(final int channel, final Attach attach) |
| { |
| |
| } |
| |
| @Override |
| public void receiveDetach(final int channel, final Detach detach) |
| { |
| |
| } |
| |
| @Override |
| public void receiveTransfer(final int channel, final Transfer transfer) |
| { |
| |
| } |
| |
| @Override |
| public void receiveDisposition(final int channel, final Disposition disposition) |
| { |
| |
| } |
| |
| @Override |
| public void receiveFlow(final int channel, final Flow flow) |
| { |
| |
| } |
| |
| @Override |
| public int getMaxFrameSize() |
| { |
| return _frameSize; |
| } |
| |
| @Override |
| public int getChannelMax() |
| { |
| return UnsignedShort.MAX_VALUE.intValue(); |
| } |
| |
| @Override |
| public void handleError(final Error parsingError) |
| { |
| LOGGER.error("Unexpected error {}", parsingError); |
| _responseQueue.add(new FrameDecodingErrorResponse(parsingError)); |
| } |
| |
| @Override |
| public boolean closedForInput() |
| { |
| return false; |
| } |
| |
| @Override |
| public void receive(final List<ChannelFrameBody> channelFrameBodies) |
| { |
| for (final ChannelFrameBody channelFrameBody : channelFrameBodies) |
| { |
| Response response; |
| Object val = channelFrameBody.getFrameBody(); |
| int channel = channelFrameBody.getChannel(); |
| if (val instanceof FrameBody) |
| { |
| FrameBody frameBody = (FrameBody) val; |
| if (frameBody instanceof Open && ((Open) frameBody).getMaxFrameSize() != null && ((Open) frameBody).getMaxFrameSize().intValue() > 512) |
| { |
| _frameSize = ((Open) frameBody).getMaxFrameSize().intValue(); |
| } |
| response = new PerformativeResponse((short) channel, frameBody); |
| } |
| else if (val instanceof SaslFrameBody) |
| { |
| SaslFrameBody frameBody = (SaslFrameBody) val; |
| response = new SaslPerformativeResponse((short) channel, frameBody); |
| |
| if (frameBody instanceof SaslOutcome && ((SaslOutcome) frameBody).getCode().equals(SaslCode.OK)) |
| { |
| resetInputHandlerAfterSaslOutcome(); |
| } |
| } |
| else if (val == null) |
| { |
| response = new EmptyResponse(); |
| } |
| else |
| { |
| throw new UnsupportedOperationException("Unexpected frame type : " + val.getClass()); |
| } |
| |
| FRAME_LOGGER.debug("RECV:" + response.getBody()); |
| _responseQueue.add(response); |
| } |
| } |
| |
| @Override |
| public void receiveSaslInit(final SaslInit saslInit) |
| { |
| |
| } |
| |
| @Override |
| public void receiveSaslMechanisms(final SaslMechanisms saslMechanisms) |
| { |
| |
| } |
| |
| @Override |
| public void receiveSaslChallenge(final SaslChallenge saslChallenge) |
| { |
| |
| } |
| |
| @Override |
| public void receiveSaslResponse(final SaslResponse saslResponse) |
| { |
| |
| } |
| |
| @Override |
| public void receiveSaslOutcome(final SaslOutcome saslOutcome) |
| { |
| |
| } |
| } |
| |
| private static class FrameDecodingErrorResponse implements Response<Error>, FrameDecodingError |
| { |
| private final Error _error; |
| |
| FrameDecodingErrorResponse(final Error error) |
| { |
| _error = error; |
| } |
| |
| @Override |
| public Error getBody() |
| { |
| return null; |
| } |
| |
| @Override |
| public Error getError() |
| { |
| return _error; |
| } |
| } |
| } |
