View Javadoc

1   /***
2    *
3    * Copyright 2004 Protique Ltd
4    *
5    * Licensed under the Apache License, Version 2.0 (the "License");
6    * you may not use this file except in compliance with the License.
7    * You may obtain a copy of the License at
8    *
9    * http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   *
17   **/
18  
19  
20  package org.codehaus.activemq.message;
21  
22  import java.io.DataOutput;
23  import java.io.IOException;
24  
25  /***
26   * Writes a ConsumerInfo object to a Stream
27   */
28  public class ResponseReceiptWriter extends ReceiptWriter {
29  
30  
31      /***
32       * Return the type of Packet
33       *
34       * @return integer representation of the type of Packet
35       */
36  
37      public int getPacketType() {
38          return Packet.RESPONSE_RECEIPT_INFO;
39      }
40  
41  
42      /***
43       * Write a Packet instance to data output stream
44       *
45       * @param packet  the instance to be seralized
46       * @param dataOut the output stream
47       * @throws IOException thrown if an error occurs
48       */
49  
50      public void writePacket(Packet packet, DataOutput dataOut) throws IOException {
51          super.writePacket(packet, dataOut);
52          ResponseReceipt info = (ResponseReceipt) packet;
53          byte data[] = info.getResultBytes();
54          if (data == null) {
55              dataOut.writeInt(0);
56          }
57          else {
58              dataOut.writeInt(data.length);
59              dataOut.write(data);
60          }
61      }
62  
63  
64  }