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package org.apache.qpid.transport.network.io;
/*
*
* 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.
*
*/
import java.nio.ByteBuffer;
import org.apache.qpid.AMQException;
import org.apache.qpid.framing.AMQFrame;
import org.apache.qpid.framing.AMQFrameDecodingException;
import org.apache.qpid.framing.AMQMethodBody;
import org.apache.qpid.framing.AMQMethodBodyFactory;
import org.apache.qpid.framing.BodyFactory;
import org.apache.qpid.framing.ContentBody;
import org.apache.qpid.framing.ContentBodyFactory;
import org.apache.qpid.framing.ContentHeaderBody;
import org.apache.qpid.framing.ContentHeaderBodyFactory;
import org.apache.qpid.framing.HeartbeatBody;
import org.apache.qpid.framing.HeartbeatBodyFactory;
import org.apache.qpid.framing.MethodRegistry;
import org.apache.qpid.protocol.AMQVersionAwareProtocolSession;
import org.apache.qpid.transport.Receiver;
public class InputHandler_0_9 implements Receiver<ByteBuffer>
{
private AMQVersionAwareProtocolSession _session;
private MethodRegistry _registry;
private BodyFactory bodyFactory;
private static final BodyFactory[] _bodiesSupported = new BodyFactory[Byte.MAX_VALUE];
static
{
_bodiesSupported[ContentHeaderBody.TYPE] = ContentHeaderBodyFactory.getInstance();
_bodiesSupported[ContentBody.TYPE] = ContentBodyFactory.getInstance();
_bodiesSupported[HeartbeatBody.TYPE] = new HeartbeatBodyFactory();
}
public InputHandler_0_9(AMQVersionAwareProtocolSession session)
{
_session = session;
_registry = _session.getMethodRegistry();
}
public void closed()
{
// AS FIXME: implement
}
public void exception(Throwable t)
{
// TODO: propogate exception to things
t.printStackTrace();
}
public void received(ByteBuffer buf)
{
org.apache.mina.common.ByteBuffer in = org.apache.mina.common.ByteBuffer.wrap(buf);
try
{
final byte type = in.get();
if (type == AMQMethodBody.TYPE)
{
bodyFactory = new AMQMethodBodyFactory(_session);
}
else
{
bodyFactory = _bodiesSupported[type];
}
if (bodyFactory == null)
{
throw new AMQFrameDecodingException(null, "Unsupported frame type: " + type, null);
}
final int channel = in.getUnsignedShort();
final long bodySize = in.getUnsignedInt();
// bodySize can be zero
if ((channel < 0) || (bodySize < 0))
{
throw new AMQFrameDecodingException(null, "Undecodable frame: type = " + type + " channel = " + channel
+ " bodySize = " + bodySize, null);
}
AMQFrame frame = new AMQFrame(in, channel, bodySize, bodyFactory);
byte marker = in.get();
if ((marker & 0xFF) != 0xCE)
{
throw new AMQFrameDecodingException(null, "End of frame marker not found. Read " + marker + " length=" + bodySize
+ " type=" + type, null);
}
try
{
frame.getBodyFrame().handle(frame.getChannel(), _session);
}
catch (AMQException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
catch (AMQFrameDecodingException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
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