Docjar: org/activemq/store/vm/VMMessageStore.java

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Source code: org/activemq/store/vm/VMMessageStore.java

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  package org.activemq.store.vm;
19  
20  import java.util.Collections;
21  import java.util.Iterator;
22  import java.util.LinkedHashMap;
23  import java.util.Map;
24  
25  import javax.jms.JMSException;
26  
27  import org.activemq.message.ActiveMQMessage;
28  import org.activemq.message.MessageAck;
29  import org.activemq.service.MessageIdentity;
30  import org.activemq.store.MessageStore;
31  import org.activemq.store.RecoveryListener;
32  
33  /**
34   * An implementation of {@link org.activemq.store.MessageStore} which uses a
35   *
36   * @version $Revision: 1.1.1.1 $
37   */
38  public class VMMessageStore implements MessageStore {
39  
40      protected Map messageTable;
41      protected MessageIdentity lastMessageIdentity;
42  
43      public VMMessageStore() {
44          this(new LinkedHashMap());
45      }
46  
47      public VMMessageStore(LinkedHashMap messageTable) {
48          this.messageTable = Collections.synchronizedMap(messageTable);
49      }
50  
51      public synchronized void addMessage(ActiveMQMessage message) throws JMSException {
52          messageTable.put(message.getJMSMessageID(), message);
53          lastMessageIdentity = message.getJMSMessageIdentity();
54      }
55  
56      public ActiveMQMessage getMessage(MessageIdentity identity) throws JMSException {
57          String messageID = identity.getMessageID();
58          return (ActiveMQMessage) messageTable.get(messageID);
59      }
60  
61      public void removeMessage(MessageAck ack) throws JMSException {
62          messageTable.remove(ack.getMessageID());
63      }
64      
65      public void removeMessage(MessageIdentity msgId) throws JMSException {
66          messageTable.remove(msgId.getMessageID());
67      }
68  
69      public void recover(RecoveryListener listener) throws JMSException {
70          for (Iterator iter = messageTable.values().iterator(); iter.hasNext();) {
71              ActiveMQMessage msg = (ActiveMQMessage) iter.next();
72              listener.recoverMessage(msg.getJMSMessageIdentity());
73          }
74      }
75  
76      public void start() throws JMSException {
77      }
78  
79      public void stop() throws JMSException {
80      }
81  
82      public void removeAllMessages() throws JMSException {
83          messageTable.clear();
84      }
85  
86  }