View Javadoc

1   /***
2    * Redistribution and use of this software and associated documentation
3    * ("Software"), with or without modification, are permitted provided
4    * that the following conditions are met:
5    *
6    * 1. Redistributions of source code must retain copyright
7    *    statements and notices.  Redistributions must also contain a
8    *    copy of this document.
9    *
10   * 2. Redistributions in binary form must reproduce the
11   *    above copyright notice, this list of conditions and the
12   *    following disclaimer in the documentation and/or other
13   *    materials provided with the distribution.
14   *
15   * 3. The name "Exolab" must not be used to endorse or promote
16   *    products derived from this Software without prior written
17   *    permission of Exoffice Technologies.  For written permission,
18   *    please contact info@exolab.org.
19   *
20   * 4. Products derived from this Software may not be called "Exolab"
21   *    nor may "Exolab" appear in their names without prior written
22   *    permission of Exoffice Technologies. Exolab is a registered
23   *    trademark of Exoffice Technologies.
24   *
25   * 5. Due credit should be given to the Exolab Project
26   *    (http://www.exolab.org/).
27   *
28   * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
29   * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30   * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31   * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
32   * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33   * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39   * OF THE POSSIBILITY OF SUCH DAMAGE.
40   *
41   * Copyright 2005 (C) Exoffice Technologies Inc. All Rights Reserved.
42   *
43   * $Id: MasterDestinationStore.java,v 1.2 2005/10/20 14:07:03 tanderson Exp $
44   */
45  package org.exolab.jms.tools.migration.master;
46  
47  import java.sql.Connection;
48  import java.util.ArrayList;
49  import java.util.Enumeration;
50  import java.util.List;
51  import javax.jms.JMSException;
52  
53  import org.exolab.jms.client.JmsDestination;
54  import org.exolab.jms.client.JmsQueue;
55  import org.exolab.jms.persistence.DatabaseService;
56  import org.exolab.jms.persistence.PersistenceException;
57  import org.exolab.jms.tools.migration.IteratorAdapter;
58  import org.exolab.jms.tools.migration.Store;
59  import org.exolab.jms.tools.migration.StoreIterator;
60  
61  
62  /***
63   * <code>MasterDestinationStore</code> manages a collection of persistent
64   * destinations.
65   *
66   * @author <a href="mailto:tma#netspace.net.au">Tim Anderson</a>
67   * @version $Revision: 1.2 $ $Date: 2005/10/20 14:07:03 $
68   */
69  public class MasterDestinationStore implements Store {
70  
71      /***
72       * The database service.
73       */
74      private DatabaseService _database;
75  
76      /***
77       * Construct a new <code>MasterDestinationStore</code>.
78       *
79       * @param database the database service
80       */
81      public MasterDestinationStore(DatabaseService database) {
82          _database = database;
83      }
84  
85      /***
86       * Export the destinations.
87       *
88       * @return an iterator over the collection
89       * @throws JMSException         for any JMS error
90       * @throws PersistenceException for any persistence error
91       */
92      public StoreIterator exportCollection() throws JMSException,
93              PersistenceException {
94          List destinations = getDestinatiuons();
95          return new IteratorAdapter(destinations.iterator());
96      }
97  
98      /***
99       * Import destinations into the store.
100      *
101      * @param iterator an iterator over the collection
102      * @throws JMSException         for any JMS error
103      * @throws PersistenceException for any persistence error
104      */
105     public void importCollection(StoreIterator iterator) throws JMSException,
106             PersistenceException {
107         Connection connection = _database.getConnection();
108         while (iterator.hasNext()) {
109             JmsDestination destination = (JmsDestination) iterator.next();
110             String name = destination.getName();
111             boolean queue = false;
112             if (destination instanceof JmsQueue) {
113                 queue = true;
114             }
115 
116             _database.getAdapter().addDestination(connection, name, queue);
117         }
118         _database.commit();
119     }
120 
121     /***
122      * Returns the number of elements in the collection.
123      *
124      * @return the number of elements in the collection
125      * @throws PersistenceException for any persistence error
126      */
127     public int size() throws PersistenceException {
128         return getDestinatiuons().size();
129     }
130 
131     /***
132      * Returns the destinations.
133      *
134      * @return a list of {@link JmsDestination} instances
135      * @throws PersistenceException for any persistence error
136      */
137     private List getDestinatiuons() throws PersistenceException {
138         List result = new ArrayList();
139         Enumeration destinations;
140         Connection connection = _database.getConnection();
141         destinations = _database.getAdapter().getAllDestinations(connection);
142         while (destinations.hasMoreElements()) {
143             result.add(destinations.nextElement());
144         }
145         _database.commit();
146         return result;
147     }
148 
149 }
150