| 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(); |
| } |
| } |
| |
| } |