1   /**
2    * Copyright (c) 2000-2007 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.util.spring.hibernate;
24  
25  import com.liferay.util.dao.hibernate.LiferayClassicSession;
26  
27  import java.lang.Object;
28  import java.lang.reflect.InvocationHandler;
29  import java.lang.reflect.InvocationTargetException;
30  import java.lang.reflect.Method;
31  
32  import org.hibernate.HibernateException;
33  import org.hibernate.SessionFactory;
34  import org.hibernate.classic.Session;
35  
36  import org.springframework.orm.hibernate3.SessionFactoryUtils;
37  
38  /**
39   * <a href="SessionFactoryInvocationHandler.java.html"><b><i>View Source</i></b>
40   * </a>
41   *
42   * <p>
43   * See http://support.liferay.com/browse/LEP-2996.
44   * </p>
45   *
46   * @author Brian Wing Shun Chan
47   *
48   */
49  public class SessionFactoryInvocationHandler implements InvocationHandler {
50  
51      public SessionFactoryInvocationHandler(SessionFactory sessionFactory) {
52          _sessionFactory = sessionFactory;
53      }
54  
55      public Object invoke(Object proxy, Method method, Object[] args)
56          throws Throwable {
57  
58          if (method.getName().equals("getCurrentSession")) {
59              try {
60                  Session session = (Session)SessionFactoryUtils.doGetSession(
61                      (SessionFactory)proxy, false);
62  
63                  return wrapLiferaySession(session);
64              }
65              catch (IllegalStateException ise) {
66                  throw new HibernateException(ise.getMessage());
67              }
68          }
69          else if (method.getName().equals("openSession")) {
70              Session session = (Session)method.invoke(_sessionFactory, args);
71  
72              return wrapLiferaySession(session);
73          }
74          else if (method.getName().equals("equals")) {
75              if (proxy == args[0]) {
76                  return Boolean.TRUE;
77              }
78              else {
79                  return Boolean.FALSE;
80              }
81          }
82          else if (method.getName().equals("hashCode")) {
83              return new Integer(hashCode());
84          }
85  
86          try {
87              return method.invoke(_sessionFactory, args);
88          }
89          catch (InvocationTargetException ite) {
90              throw ite.getTargetException();
91          }
92      }
93  
94      protected Session wrapLiferaySession(Session session) {
95          if (session.getClass().getName().equals(
96                  LiferayClassicSession.class.getName())) {
97  
98              return session;
99          }
100         else {
101             return new LiferayClassicSession(session);
102         }
103     }
104 
105     private final SessionFactory _sessionFactory;
106 
107 }