diff options
Diffstat (limited to 'qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/transport/AMQPFrameTransport.java')
-rw-r--r-- | qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/transport/AMQPFrameTransport.java | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/transport/AMQPFrameTransport.java b/qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/transport/AMQPFrameTransport.java new file mode 100644 index 0000000000..7cb10b923f --- /dev/null +++ b/qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/transport/AMQPFrameTransport.java @@ -0,0 +1,179 @@ +/* + * 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.amqp_1_0.transport; + +import org.apache.qpid.amqp_1_0.codec.ValueWriter; +import org.apache.qpid.amqp_1_0.framing.AMQFrame; +import org.apache.qpid.amqp_1_0.type.FrameBody; + +import java.nio.ByteBuffer; +import java.util.concurrent.ArrayBlockingQueue; +import java.util.concurrent.BlockingQueue; + + +public class AMQPFrameTransport implements FrameTransport<AMQFrame<FrameBody>>, FrameOutputHandler<FrameBody> +{ + private final Object _inputLock = new Object(); + private final Object _outputLock = new Object(); + + private volatile boolean _inputOpen = true; + private volatile boolean _outputOpen = true; + + private final ConnectionEndpoint _endpoint; + private final BlockingQueue<AMQFrame<FrameBody>> _queue = new ArrayBlockingQueue<AMQFrame<FrameBody>>(100); + private StateChangeListener _inputListener; + private StateChangeListener _outputListener; + + + public AMQPFrameTransport(final ConnectionEndpoint endpoint) + { + _endpoint = endpoint; + + _endpoint.setFrameOutputHandler(this); + } + + public boolean isOpenForInput() + { + return _inputOpen; + } + + public void closeForInput() + { + synchronized(_inputLock) + { + _inputOpen = false; + _inputLock.notifyAll(); + } + } + + public void processIncomingFrame(final AMQFrame<FrameBody> frame) + { + frame.getFrameBody().invoke(frame.getChannel(), _endpoint); + } + + + public boolean canSend() + { + return _queue.remainingCapacity() != 0; + } + + public void send(AMQFrame<FrameBody> frame) + { + send(frame, null); + } + + + public void send(final AMQFrame<FrameBody> frame, final ByteBuffer payload) + { + synchronized(_endpoint.getLock()) + { + boolean empty = _queue.isEmpty(); + try + { + + while(!_queue.offer(frame)) + { + _endpoint.getLock().wait(1000L); + + } + if(empty && _outputListener != null) + { + _outputListener.onStateChange(true); + } + + _endpoint.getLock().notifyAll(); + } + catch (InterruptedException e) + { + + } + } + } + + public void close() + { + synchronized (_endpoint.getLock()) + { + _endpoint.getLock().notifyAll(); + } + } + + public AMQFrame<FrameBody> getNextFrame() + { + synchronized(_endpoint.getLock()) + { + AMQFrame<FrameBody> frame = null; + if(isOpenForOutput()) + { + frame = _queue.poll(); + } + return frame; + } + } + + public void closeForOutput() + { + synchronized (_outputLock) + { + _outputOpen = false; + _outputLock.notifyAll(); + } + } + + public boolean isOpenForOutput() + { + return _outputOpen; + } + + public ValueWriter.Registry getRegistry() + { + return _endpoint.getDescribedTypeRegistry(); + } + + public void setInputStateChangeListener(final StateChangeListener listener) + { + _inputListener = listener; + } + + public void setOutputStateChangeListener(final StateChangeListener listener) + { + _outputListener = listener; + } + + public void setVersion(final byte major, final byte minor, final byte revision) + { + + } + + public byte getMajorVersion() + { + return _endpoint.getMajorVersion(); + } + + public byte getMinorVersion() + { + return _endpoint.getMinorVersion(); + } + + public byte getRevision() + { + return _endpoint.getRevision(); + } +} |