001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.activemq.store.kahadaptor;
018    
019    import java.io.DataInput;
020    import java.io.DataOutput;
021    import java.io.IOException;
022    import org.apache.activemq.command.MessageId;
023    import org.apache.activemq.kaha.Marshaller;
024    import org.apache.activemq.kaha.impl.index.IndexItem;
025    
026    /**
027     * Marshall a TopicSubAck
028     * 
029     * 
030     */
031    public class ConsumerMessageRefMarshaller implements Marshaller {
032    
033        /**
034         * @param object
035         * @param dataOut
036         * @throws IOException
037         * @see org.apache.activemq.kaha.Marshaller#writePayload(java.lang.Object,
038         *      java.io.DataOutput)
039         */
040        public void writePayload(Object object, DataOutput dataOut) throws IOException {
041            ConsumerMessageRef ref = (ConsumerMessageRef)object;
042            dataOut.writeUTF(ref.getMessageId().toString());
043            IndexItem item = (IndexItem)ref.getMessageEntry();
044            dataOut.writeLong(item.getOffset());
045            item.write(dataOut);
046            item = (IndexItem)ref.getAckEntry();
047            dataOut.writeLong(item.getOffset());
048            item.write(dataOut);
049    
050        }
051    
052        /**
053         * @param dataIn
054         * @return payload
055         * @throws IOException
056         * @see org.apache.activemq.kaha.Marshaller#readPayload(java.io.DataInput)
057         */
058        public Object readPayload(DataInput dataIn) throws IOException {
059            ConsumerMessageRef ref = new ConsumerMessageRef();
060            ref.setMessageId(new MessageId(dataIn.readUTF()));
061            IndexItem item = new IndexItem();
062            item.setOffset(dataIn.readLong());
063            item.read(dataIn);
064            ref.setMessageEntry(item);
065            item = new IndexItem();
066            item.setOffset(dataIn.readLong());
067            item.read(dataIn);
068            ref.setAckEntry(item);
069            return ref;
070        }
071    }