MessageDrivenInterceptor


1   /**
2    * EasyBeans
3    * Copyright (C) 2006 Bull S.A.S.
4    * Contact: easybeans@objectweb.org
5    *
6    * This library is free software; you can redistribute it and/or
7    * modify it under the terms of the GNU Lesser General Public
8    * License as published by the Free Software Foundation; either
9    * version 2.1 of the License, or any later version.
10   *
11   * This library is distributed in the hope that it will be useful,
12   * but WITHOUT ANY WARRANTY; without even the implied warranty of
13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14   * Lesser General Public License for more details.
15   *
16   * You should have received a copy of the GNU Lesser General Public
17   * License along with this library; if not, write to the Free Software
18   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
19   * USA
20   *
21   * --------------------------------------------------------------------------
22   * $Id: MessageDrivenInterceptor.java 673 2006-06-18 18:15:25Z benoitf $
23   * --------------------------------------------------------------------------
24   */
25  
26  package org.objectweb.easybeans.examples.messagedrivenbean;
27  
28  import javax.interceptor.AroundInvoke;
29  import javax.interceptor.InvocationContext;
30  
31  /**
32   * Interceptor for the onMessage() method in this separated class.
33   * @author Florent Benoit
34   */
35  public class MessageDrivenInterceptor {
36  
37      /**
38       * Interceptor for onMessage() method.
39       * @param invocationContext contains attributes of invocation
40       * @return method's invocation result
41       * @throws Exception if invocation fails
42       */
43      @SuppressWarnings  ("finally")
44      @AroundInvoke
45      public Object   handleMessage(final InvocationContext invocationContext) throws Exception   {
46          System.out.println("Before receiving message");
47          Object   returnedValue = null;
48          try {
49              returnedValue = invocationContext.proceed();
50          } finally {
51              System.out.println("After receiving message");
52          }
53          return returnedValue;
54      }
55  }
56
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