1 package org.apache.torque.dsfactory;
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19 import javax.sql.ConnectionPoolDataSource;
20 import javax.sql.DataSource;
21
22 import org.apache.commons.configuration.Configuration;
23
24 import org.apache.commons.dbcp.datasources.PerUserPoolDataSource;
25
26 import org.apache.commons.logging.Log;
27 import org.apache.commons.logging.LogFactory;
28
29 import org.apache.torque.Torque;
30 import org.apache.torque.TorqueException;
31
32 /***
33 * A factory that looks up the DataSource using the JDBC2 pool methods.
34 *
35 * @author <a href="mailto:jmcnally@apache.org">John McNally</a>
36 * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a>
37 * @version $Id: PerUserPoolDataSourceFactory.java,v 1.1.2.2 2004/05/20 04:35:14 seade Exp $
38 */
39 public class PerUserPoolDataSourceFactory
40 extends AbstractDataSourceFactory
41 implements DataSourceFactory
42 {
43
44 /*** The log. */
45 private static Log log
46 = LogFactory.getLog(PerUserPoolDataSourceFactory.class);
47
48 /*** The wrapped <code>DataSource</code>. */
49 private DataSource ds;
50
51 /***
52 * @see org.apache.torque.dsfactory.DataSourceFactory#getDataSource
53 */
54 public DataSource getDataSource()
55 {
56 return ds;
57 }
58
59 /***
60 * @see org.apache.torque.dsfactory.DataSourceFactory#initialize
61 */
62 public void initialize(Configuration configuration) throws TorqueException
63 {
64 if (configuration == null)
65 {
66 throw new TorqueException(
67 "Torque cannot be initialized without a valid configuration. "
68 + "Please check the log files for further details.");
69 }
70
71 ConnectionPoolDataSource cpds = initCPDS(configuration);
72 PerUserPoolDataSource ds = initJdbc2Pool(configuration);
73 ds.setConnectionPoolDataSource(cpds);
74 this.ds = ds;
75 }
76
77 /***
78 * Initializes the Jdbc2PoolDataSource.
79 *
80 * @param configuration where to read the settings from
81 * @throws TorqueException if a property set fails
82 * @return a configured <code>Jdbc2PoolDataSource</code>
83 */
84 private PerUserPoolDataSource initJdbc2Pool(Configuration configuration)
85 throws TorqueException
86 {
87 log.debug("Starting initJdbc2Pool");
88 PerUserPoolDataSource ds = new PerUserPoolDataSource();
89 Configuration c = Torque.getConfiguration();
90
91 if (c == null)
92 {
93 log.warn("Global Configuration not set,"
94 + " no Default pool data source configured!");
95 }
96 else
97 {
98 Configuration conf = c.subset(DEFAULT_POOL_KEY);
99 applyConfiguration(conf, ds);
100 }
101
102 Configuration conf = configuration.subset(POOL_KEY);
103 applyConfiguration(conf, ds);
104 return ds;
105 }
106 }