|
1
22 package org.jboss.tm.iiop.client;
23
24 import java.util.Hashtable  ;
25
26 import javax.naming.Context ;
27 import javax.naming.InitialContext ;
28 import javax.naming.Name ;
29 import javax.naming.NamingException ;
30 import javax.naming.spi.ObjectFactory ;
31 import javax.transaction.UserTransaction ;
32
33 import org.omg.CORBA.BAD_PARAM ;
34
35 import org.jboss.logging.Logger;
36 import org.jboss.tm.iiop.TransactionFactoryExtHelper;
37 import org.jboss.tm.usertx.client.ServerVMClientUserTransaction;
38
39
47 public class IIOPClientUserTransactionObjectFactory
48 implements ObjectFactory
49 {
50 private static final Logger log =
51 Logger.getLogger(IIOPClientUserTransactionObjectFactory.class);
52 private static final boolean traceEnabled = log.isTraceEnabled();
53
54
58 private static UserTransaction userTransaction = null;
59
60
64 private static UserTransaction getUserTransaction()
65 {
66 if (userTransaction == null)
67 {
68 try
70 {
71 new InitialContext ().lookup("java:/TransactionManager");
72
73 userTransaction = ServerVMClientUserTransaction.getSingleton();
75 }
76 catch (NamingException ex)
77 {
78 userTransaction = IIOPClientUserTransaction.getSingleton();
80 }
81 }
82 return userTransaction;
83 }
84
85 public Object getObjectInstance(Object obj, Name name,
86 Context nameCtx, Hashtable environment)
87 throws Exception
88 {
89
90 if (traceEnabled)
91 log.trace("getObjectInstance: obj=" + obj +
92 "\n name=" + name +
93 "\n nameCtx= " + nameCtx);
94
95 if (!name.toString().equals("UserTransaction"))
96 return null;
97 try
98 {
99 TransactionFactoryExtHelper.narrow(obj);
100 }
101 catch (BAD_PARAM e)
102 {
103 return null;
104 }
105 return getUserTransaction();
106 }
107 }
108
109 |
Popular Tags |
Java API By Example, From Geeks To Geeks.