| /* |
| * |
| * 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.framing; |
| |
| import java.io.DataInputStream; |
| import java.io.IOException; |
| |
| import org.apache.qpid.QpidException; |
| import org.apache.qpid.bytebuffer.QpidByteBuffer; |
| import org.apache.qpid.protocol.AMQVersionAwareProtocolSession; |
| import org.apache.qpid.transport.ByteBufferSender; |
| |
| public class HeartbeatBody implements AMQBody |
| { |
| public static final byte TYPE = 8; |
| public static final AMQFrame FRAME = new HeartbeatBody().toFrame(); |
| |
| public HeartbeatBody() |
| { |
| |
| } |
| |
| public HeartbeatBody(DataInputStream buffer, long size) throws IOException |
| { |
| if(size > 0) |
| { |
| //allow other implementations to have a payload, but ignore it: |
| buffer.skip(size); |
| } |
| } |
| |
| public byte getFrameType() |
| { |
| return TYPE; |
| } |
| |
| public int getSize() |
| { |
| return 0;//heartbeats we generate have no payload |
| } |
| |
| @Override |
| public long writePayload(final ByteBufferSender sender) |
| { |
| return 0l; |
| } |
| |
| public void handle(final int channelId, final AMQVersionAwareProtocolSession session) |
| throws QpidException |
| { |
| session.heartbeatBodyReceived(channelId, this); |
| } |
| |
| protected void populateFromBuffer(DataInputStream buffer, long size) throws AMQFrameDecodingException, IOException |
| { |
| if(size > 0) |
| { |
| //allow other implementations to have a payload, but ignore it: |
| buffer.skip(size); |
| } |
| } |
| |
| public AMQFrame toFrame() |
| { |
| return new AMQFrame(0, this); |
| } |
| |
| public static void process(final int channel, |
| final QpidByteBuffer in, |
| final MethodProcessor processor, |
| final long bodySize) |
| { |
| |
| if(bodySize > 0) |
| { |
| in.position(in.position()+(int)bodySize); |
| } |
| processor.receiveHeartbeat(); |
| } |
| } |