1 /***
2 * @(#)XADataSourceFactory.java
3 *
4 * JFoxSOAF, Service-Oriented Application Framework
5 *
6 * Copyright(c) JFoxSOAF Team
7 *
8 * Licensed under the GNU LGPL, Version 2.1 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
11 *
12 * http://www.gnu.org/copyleft/lesser.html
13 *
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 *
20 * For more information, please visit:
21 * http://www.jfox.cn/confluence/display/JFoxSOAF/Home
22 * http://www.huihoo.org/jfox/jfoxsoaf
23 */
24
25 package org.huihoo.jfox.soaf.services.jdbc;
26
27 import java.util.Enumeration;
28 import java.util.Hashtable;
29 import java.util.Vector;
30
31 import javax.sql.DataSource;
32
33 import org.apache.commons.lang.math.NumberUtils;
34 import org.apache.commons.logging.Log;
35 import org.apache.commons.logging.LogFactory;
36 import org.enhydra.jdbc.standard.StandardXADataSource;
37 import org.huihoo.jfox.soaf.container.ServiceFactory;
38 import org.huihoo.jfox.soaf.services.transaction.JotmTransactionService;
39
40 /***
41 * <p>
42 * XADataSource Factory.
43 * </p>
44 *
45 * @author <a href="mailto:founder_chen@yahoo.com.cn">Peter Cheng </a>
46 * @version $Revision: 1.1 $ $Date: 2006/02/15 08:45:45 $
47 * @version Revision: 1.0
48 */
49
50 public class XADataSourceFactory extends DataSourceFactory {
51
52 /***
53 * @param arg0
54 */
55 public XADataSourceFactory() {
56 }
57
58 private DataSource xads;
59
60 private Hashtable attributes = new Hashtable();
61
62 private JotmTransactionService jotmTS = (JotmTransactionService) ServiceFactory
63 .getInstance().getService(JotmTransactionService.class);
64
65 private final Log logger = LogFactory.getLog(getClass());
66
67 public DataSource getInstance() {
68 xads = new StandardXADataSource();
69 try {
70 ((StandardXADataSource) xads)
71 .setDriverName((String) getAttribute(DatabaseConstant.JDBC_DRIVER_CLASS_NAME));
72 ((StandardXADataSource) xads)
73 .setUrl((String) getAttribute(DatabaseConstant.JDBC_URL));
74 ((StandardXADataSource) xads)
75 .setUser((String) getAttribute(DatabaseConstant.JDBC_USERNAME));
76 ((StandardXADataSource) xads)
77 .setPassword((String) getAttribute(DatabaseConstant.JDBC_PASSWORD));
78 String maxConNum = (String) getAttribute(DatabaseConstant.JDBC_MAX_POOL_SIZE);
79 String minConNum = (String) getAttribute(DatabaseConstant.JDBC_MIN_POOL_SIZE);
80 ((StandardXADataSource) xads).setMaxCon(NumberUtils
81 .toInt(maxConNum));
82 ((StandardXADataSource) xads).setMinCon(NumberUtils
83 .toInt(minConNum));
84 ((StandardXADataSource) xads).setTransactionManager(jotmTS
85 .getTransactionManager());
86 } catch (Exception e) {
87 logger.error("Init XADataSource failed " + e.getMessage());
88 }
89 return xads;
90 }
91
92 /***
93 * Return the configuration attribute with the specified name (if any), or
94 * <code>null</code> if there is no such attribute.
95 *
96 * @param name
97 * Name of the attribute to return
98 * @return attribute
99 */
100 public Object getAttribute(String name) {
101 return attributes.get(name);
102 }
103
104 /***
105 * Return an array containing the names of all currently defined
106 * configuration attributes. If there are no such attributes, a zero length
107 * array is returned.
108 *
109 * @return attribute names
110 */
111 public String[] getAttributeNames() {
112 Vector names = new Vector();
113 Enumeration keys = attributes.keys();
114 while (keys.hasMoreElements()) {
115 names.addElement(keys.nextElement());
116 }
117 String results[] = new String[names.size()];
118 for (int i = 0; i < results.length; i++) {
119 results[i] = (String) names.elementAt(i);
120 }
121 return (results);
122 }
123
124 /***
125 * Remove any configuration attribute associated with the specified name. If
126 * there is no such attribute, no action is taken.
127 *
128 * @param name
129 * Name of the attribute to remove
130 */
131 public void removeAttribute(String name) {
132 attributes.remove(name);
133
134 }
135
136 /***
137 * Set the configuration attribute with the specified name. Calling this
138 * with a <code>null</code> value is equivalent to calling
139 * <code>removeAttribute(name)</code>.
140 *
141 * @param name
142 * Name of the attribute to set
143 * @param value
144 * Value of the attribute to set, or <code>null</code> to
145 * remove any setting for this attribute
146 */
147 public void setAttribute(String name, Object value) {
148 if (value == null) {
149 attributes.remove(name);
150 } else {
151 attributes.put(name, value);
152 }
153 }
154 }