KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > jboss > ejb3 > stateless > StatelessInstanceInterceptor


1 /*
2   * JBoss, Home of Professional Open Source
3   * Copyright 2005, JBoss Inc., and individual contributors as indicated
4   * by the @authors tag. See the copyright.txt in the distribution for a
5   * full listing of individual contributors.
6   *
7   * This is free software; you can redistribute it and/or modify it
8   * under the terms of the GNU Lesser General Public License as
9   * published by the Free Software Foundation; either version 2.1 of
10   * the License, or (at your option) any later version.
11   *
12   * This software is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15   * Lesser General Public License for more details.
16   *
17   * You should have received a copy of the GNU Lesser General Public
18   * License along with this software; if not, write to the Free
19   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21   */
22 package org.jboss.ejb3.stateless;
23
24 import org.jboss.aop.advice.Interceptor;
25 import org.jboss.aop.joinpoint.Invocation;
26 import org.jboss.ejb3.*;
27 import org.jboss.ejb3.stateful.StatefulInstanceInterceptor;
28 import org.jboss.ejb3.tx.Ejb3TxPolicy;
29 import org.jboss.logging.Logger;
30
31 import javax.ejb.EJBException JavaDoc;
32 import java.rmi.RemoteException JavaDoc;
33
34 /**
35  * Comment
36  *
37  * @author <a HREF="mailto:bill@jboss.org">Bill Burke</a>
38  * @version $Revision: 44882 $
39  */
40 public class StatelessInstanceInterceptor implements Interceptor
41 {
42    private static final Logger log = Logger.getLogger(StatelessInstanceInterceptor.class);
43
44    public String JavaDoc getName()
45    {
46       return "StatelessInstanceInterceptor";
47    }
48
49    public Object JavaDoc invoke(Invocation invocation) throws Throwable JavaDoc
50    {
51       EJBContainerInvocation ejb = (EJBContainerInvocation) invocation;
52       EJBContainer container = (EJBContainer)ejb.getAdvisor();
53       Pool pool = container.getPool();
54       BeanContext ctx = pool.get();
55       ejb.setTargetObject(ctx.getInstance());
56       ejb.setBeanContext(ctx);
57
58       boolean discard = false;
59
60       try
61       {
62          return ejb.invokeNext();
63       }
64       catch (Exception JavaDoc ex)
65       {
66          discard = (ex instanceof EJBException JavaDoc) ||
67                  ((ex instanceof RuntimeException JavaDoc || ex instanceof RemoteException JavaDoc) && !StatefulInstanceInterceptor.isApplicationException(ex.getClass(), container));
68          throw ex;
69       }
70       finally
71       {
72          ejb.setTargetObject(null);
73          ejb.setBeanContext(null);
74          if (discard) pool.discard(ctx);
75          else pool.release(ctx);
76       }
77    }
78 }
79
Popular Tags