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 import org.codehaus.activemq.util.BitArray;
25
26 /***
27 * Writes a ConsumerInfo object to a Stream
28 */
29
30 public class MessageAckWriter extends AbstractPacketWriter {
31
32
33 /***
34 * Return the type of Packet
35 *
36 * @return integer representation of the type of Packet
37 */
38
39 public int getPacketType() {
40 return Packet.ACTIVEMQ_MSG_ACK;
41 }
42
43 /***
44 * Write a Packet instance to data output stream
45 *
46 * @param packet the instance to be seralized
47 * @param dataOut the output stream
48 * @throws IOException thrown if an error occurs
49 */
50
51 public void writePacket(Packet packet, DataOutput dataOut) throws IOException {
52 super.writePacket(packet, dataOut);
53 MessageAck ack = (MessageAck) packet;
54 super.writeUTF(ack.getConsumerId(), dataOut);
55 super.writeUTF(ack.getMessageID(), dataOut);
56 super.writeUTF(ack.getTransactionId(), dataOut);
57
58 BitArray ba = new BitArray();
59 ba.set(MessageAck.MESSAGE_READ_INDEX, ack.isMessageRead());
60 ba.set(MessageAck.XA_TRANSACTED_INDEX, ack.isXaTransacted());
61 ba.set(MessageAck.PERSISTENT_INDEX,ack.isPersistent());
62 ba.writeToStream(dataOut);
63
64 ActiveMQDestination.writeToStream((ActiveMQDestination) ack.getDestination(), dataOut);
65 }
66
67
68 }