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 }