1 package org.apache.torque.dsfactory;
2
3 /* ====================================================================
4 * The Apache Software License, Version 1.1
5 *
6 * Copyright (c) 2001-2003 The Apache Software Foundation. All rights
7 * reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. The end-user documentation included with the redistribution,
22 * if any, must include the following acknowledgment:
23 * "This product includes software developed by the
24 * Apache Software Foundation (http://www.apache.org/)."
25 * Alternately, this acknowledgment may appear in the software itself,
26 * if and wherever such third-party acknowledgments normally appear.
27 *
28 * 4. The names "Apache" and "Apache Software Foundation" and
29 * "Apache Turbine" must not be used to endorse or promote products
30 * derived from this software without prior written permission. For
31 * written permission, please contact apache@apache.org.
32 *
33 * 5. Products derived from this software may not be called "Apache",
34 * "Apache Turbine", nor may "Apache" appear in their name, without
35 * prior written permission of the Apache Software Foundation.
36 *
37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
41 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
44 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
45 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
46 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
47 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48 * SUCH DAMAGE.
49 * ====================================================================
50 *
51 * This software consists of voluntary contributions made by many
52 * individuals on behalf of the Apache Software Foundation. For more
53 * information on the Apache Software Foundation, please see
54 * <http://www.apache.org/>.
55 */
56
57 import javax.sql.ConnectionPoolDataSource;
58 import javax.sql.DataSource;
59
60 import org.apache.commons.configuration.Configuration;
61
62 import org.apache.commons.dbcp.datasources.PerUserPoolDataSource;
63
64 import org.apache.commons.logging.Log;
65 import org.apache.commons.logging.LogFactory;
66
67 import org.apache.torque.Torque;
68 import org.apache.torque.TorqueException;
69
70 /***
71 * A factory that looks up the DataSource using the JDBC2 pool methods.
72 *
73 * @author <a href="mailto:jmcnally@apache.org">John McNally</a>
74 * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a>
75 * @version $Id: PerUserPoolDataSourceFactory.java,v 1.1 2003/08/19 19:09:12 mpoeschl Exp $
76 */
77 public class PerUserPoolDataSourceFactory
78 extends AbstractDataSourceFactory
79 implements DataSourceFactory
80 {
81
82 /*** The log. */
83 private static Log log
84 = LogFactory.getLog(PerUserPoolDataSourceFactory.class);
85
86 /*** The wrapped <code>DataSource</code>. */
87 private DataSource ds;
88
89 /***
90 * @see org.apache.torque.dsfactory.DataSourceFactory#getDataSource
91 */
92 public DataSource getDataSource()
93 {
94 return ds;
95 }
96
97 /***
98 * @see org.apache.torque.dsfactory.DataSourceFactory#initialize
99 */
100 public void initialize(Configuration configuration) throws TorqueException
101 {
102 if (configuration == null)
103 {
104 throw new TorqueException(
105 "Torque cannot be initialized without a valid configuration. "
106 + "Please check the log files for further details.");
107 }
108
109 ConnectionPoolDataSource cpds = initCPDS(configuration);
110 PerUserPoolDataSource ds = initJdbc2Pool(configuration);
111 ds.setConnectionPoolDataSource(cpds);
112 this.ds = ds;
113 }
114
115 /***
116 * Initializes the Jdbc2PoolDataSource.
117 *
118 * @param configuration where to read the settings from
119 * @throws TorqueException if a property set fails
120 * @return a configured <code>Jdbc2PoolDataSource</code>
121 */
122 private PerUserPoolDataSource initJdbc2Pool(Configuration configuration)
123 throws TorqueException
124 {
125 log.debug("Starting initJdbc2Pool");
126 PerUserPoolDataSource ds = new PerUserPoolDataSource();
127 Configuration c = Torque.getConfiguration();
128
129 if (c == null)
130 {
131 log.warn("Global Configuration not set,"
132 + " no Default pool data source configured!");
133 }
134 else
135 {
136 Configuration conf = c.subset(DEFAULT_POOL_KEY);
137 applyConfiguration(conf, ds);
138 }
139
140 Configuration conf = configuration.subset(POOL_KEY);
141 applyConfiguration(conf, ds);
142 return ds;
143 }
144 }