AdderInterceptorService


1   /*
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3    * Copyright 2005, JBoss Inc., and individual contributors as indicated
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5    * full listing of individual contributors.
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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.
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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.
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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.test.jmx.interceptors;
23  
24  import org.jboss.mx.server.Invocation;
25  import org.jboss.system.InterceptorServiceMBeanSupport;
26  
27  /**
28   * AdderInterceptorService will attach dynamically an interceptor
29   * to the AdderPOJO (xmbean) and add +1 to the add() method result
30   * 
31   * @author <a HREF="mailto:dimitris@jboss.org">Dimitris Andreadis</a>
32   * @version $Revision: 41510 $
33   */
34  public class AdderInterceptorService extends InterceptorServiceMBeanSupport
35     implements AdderInterceptorServiceMBean
36  {
37     public AdderInterceptorService()
38     {
39        // empty
40     }
41  
42     protected void startService() throws Exception     
43     {
44        // attach our interceptor
45        super.attach();
46     }
47     
48     protected void stopService()
49     {
50        // detach our interceptor
51        super.detach();
52     }
53     
54     /**
55      * Override
56      */
57     protected Object   invoke(Invocation invocation) throws Throwable  
58     {
59        String   type = invocation.getType();
60        
61        if (type.equals(Invocation.OP_INVOKE))
62        {
63           String   name = invocation.getName();
64           
65           if (name.equals("add"))
66           {
67              Integer   result = (Integer  )super.invoke(invocation);
68              
69              return new Integer  (result.intValue() + 1);
70           }
71        }
72        return super.invoke(invocation);
73     }
74  }
75
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