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11 package org.mule.transaction.lookup;
12
13 import org.mule.api.MuleRuntimeException;
14 import org.mule.api.transaction.TransactionManagerFactory;
15 import org.mule.config.i18n.CoreMessages;
16 import org.mule.util.ClassUtils;
17
18 import java.lang.reflect.Method;
19
20 import javax.transaction.TransactionManager;
21
22 import org.apache.commons.logging.Log;
23 import org.apache.commons.logging.LogFactory;
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33
34 public class WebsphereTransactionManagerLookupFactory implements TransactionManagerFactory
35 {
36 private static final String FACTORY_CLASS_5_1_AND_ABOVE = "com.ibm.ws.Transaction.TransactionManagerFactory";
37
38 private static final String FACTORY_CLASS_5_0 = "com.ibm.ejs.jts.jta.TransactionManagerFactory";
39
40 private static final String FACTORY_CLASS_4 = "com.ibm.ejs.jts.jta.JTSXA";
41
42 private final Log logger = LogFactory.getLog(getClass());
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44
45
46
47
48 public TransactionManager create()
49 {
50 Class clazz;
51 TransactionManager transactionManager;
52 try
53 {
54 logger.debug("Trying WebSphere 5.1+: " + FACTORY_CLASS_5_1_AND_ABOVE);
55 clazz = ClassUtils.loadClass(FACTORY_CLASS_5_1_AND_ABOVE, this.getClass());
56 logger.info("Found WebSphere 5.1+: " + FACTORY_CLASS_5_1_AND_ABOVE);
57 }
58 catch (ClassNotFoundException ex)
59 {
60 logger.debug("Could not find WebSphere 5.1+ TransactionManager factory class", ex);
61 try
62 {
63 logger.debug("Trying WebSphere 5.0: " + FACTORY_CLASS_5_0);
64 clazz = ClassUtils.loadClass(FACTORY_CLASS_5_0, this.getClass());
65 logger.info("Found WebSphere 5.0: " + FACTORY_CLASS_5_0);
66 }
67 catch (ClassNotFoundException ex2)
68 {
69 logger.debug("Could not find WebSphere 5.0 TransactionManager factory class", ex2);
70 try
71 {
72 logger.debug("Trying WebSphere 4: " + FACTORY_CLASS_4);
73 clazz = ClassUtils.loadClass(FACTORY_CLASS_4, this.getClass());
74 logger.info("Found WebSphere 4: " + FACTORY_CLASS_4);
75 }
76 catch (ClassNotFoundException ex3)
77 {
78 logger.debug("Could not find WebSphere 4 TransactionManager factory class", ex3);
79 throw new MuleRuntimeException(
80 CoreMessages.createStaticMessage("Couldn't find any WebSphere TransactionManager factory class, "
81 + "neither for WebSphere version 5.1 nor 5.0 nor 4"),
82 ex);
83 }
84 }
85 }
86 try
87 {
88 Method method = clazz.getMethod("getTransactionManager", (Class[])null);
89 transactionManager = (TransactionManager) method.invoke(null, (Object[])null);
90 }
91 catch (Exception ex)
92 {
93 throw new MuleRuntimeException(
94 CoreMessages.createStaticMessage("Found WebSphere TransactionManager factory class ["
95 + clazz.getName()
96 + "], but couldn't invoke its static 'getTransactionManager' method"),
97 ex);
98 }
99
100 return transactionManager;
101 }
102
103 }