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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.DataInput;
23  import java.io.IOException;
24  import org.codehaus.activemq.util.BitArray;
25  
26  /***
27   * Reads a ConsumerInfo object from a Stream
28   */
29  
30  public class MessageAckReader extends AbstractPacketReader {
31  
32      /***
33       * Return the type of Packet
34       *
35       * @return integer representation of the type of Packet
36       */
37  
38      public int getPacketType() {
39          return Packet.ACTIVEMQ_MSG_ACK;
40      }
41  
42      /***
43       * @return a new Packet instance
44       */
45  
46      public Packet createPacket() {
47          return new MessageAck();
48      }
49  
50  
51      /***
52       * build a Packet instance from the data input stream
53       *
54       * @param packet A Packet object
55       * @param dataIn the data input stream to build the packet from
56       * @throws IOException
57       */
58  
59      public void buildPacket(Packet packet, DataInput dataIn) throws IOException {
60          super.buildPacket(packet, dataIn);
61          MessageAck ack = (MessageAck) packet;
62          ack.setConsumerId(dataIn.readUTF());
63          ack.setMessageID(dataIn.readUTF());
64          ack.setTransactionId(dataIn.readUTF());
65          
66          BitArray ba = new BitArray();
67          ba.readFromStream(dataIn);
68          ack.setMessageRead(ba.get(MessageAck.MESSAGE_READ_INDEX));
69          ack.setXaTransacted(ba.get(MessageAck.XA_TRANSACTED_INDEX));
70          ack.setPersistent(ba.get(MessageAck.PERSISTENT_INDEX));
71          ack.setDestination(ActiveMQDestination.readFromStream(dataIn));
72      }
73  
74  
75  }