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Java > Open Source Codes > org > apache > activemq > store > kahadaptor > ConsumerMessageRefMarshaller


1 /**
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one or more
4  * contributor license agreements. See the NOTICE file distributed with
5  * this work for additional information regarding copyright ownership.
6  * The ASF licenses this file to You under the Apache License, Version 2.0
7  * (the "License"); you may not use this file except in compliance with
8  * the License. You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18 package org.apache.activemq.store.kahadaptor;
19
20 import java.io.DataInput JavaDoc;
21 import java.io.DataOutput JavaDoc;
22 import java.io.IOException JavaDoc;
23 import org.apache.activemq.command.MessageId;
24 import org.apache.activemq.kaha.Marshaller;
25 import org.apache.activemq.kaha.impl.index.IndexItem;
26
27
28 /**
29  * Marshall a TopicSubAck
30  * @version $Revision: 1.10 $
31  */
32 public class ConsumerMessageRefMarshaller implements Marshaller{
33    
34
35     /**
36      * @param object
37      * @param dataOut
38      * @throws IOException
39      * @see org.apache.activemq.kaha.Marshaller#writePayload(java.lang.Object, java.io.DataOutput)
40      */
41     public void writePayload(Object JavaDoc object,DataOutput JavaDoc dataOut) throws IOException JavaDoc{
42        ConsumerMessageRef ref = (ConsumerMessageRef) object;
43        dataOut.writeUTF(ref.getMessageId().toString());
44        IndexItem item = (IndexItem)ref.getMessageEntry();
45        dataOut.writeLong(item.getOffset());
46        item.write(dataOut);
47        item = (IndexItem)ref.getAckEntry();
48        dataOut.writeLong(item.getOffset());
49        item.write(dataOut);
50        
51        
52     }
53
54     /**
55      * @param dataIn
56      * @return payload
57      * @throws IOException
58      * @see org.apache.activemq.kaha.Marshaller#readPayload(java.io.DataInput)
59      */
60     public Object JavaDoc readPayload(DataInput JavaDoc dataIn) throws IOException JavaDoc{
61         ConsumerMessageRef ref = new ConsumerMessageRef();
62         ref.setMessageId(new MessageId(dataIn.readUTF()));
63         IndexItem item = new IndexItem();
64         item.setOffset(dataIn.readLong());
65         item.read(dataIn);
66         ref.setMessageEntry(item);
67         item = new IndexItem();
68         item.setOffset(dataIn.readLong());
69         item.read(dataIn);
70         ref.setAckEntry(item);
71         return ref;
72     }
73 }
74
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