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Java > Open Source Codes > org > jboss > test > aop > callerargs > ExecutionInterceptor


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.test.aop.callerargs;
23
24 import org.jboss.aop.advice.Interceptor;
25 import org.jboss.aop.joinpoint.ConstructorInvocation;
26 import org.jboss.aop.joinpoint.Invocation;
27 import org.jboss.aop.joinpoint.MethodInvocation;
28
29 /**
30  *
31  * @author <a HREF="kabir.khan@jboss.com">Kabir Khan</a>
32  * @version $Revision$
33  */
34 public class ExecutionInterceptor implements Interceptor
35 {
36    public static boolean intercepted;
37    public static int argsLength;
38    public static Object JavaDoc[] args;
39
40    public String JavaDoc getName()
41    {
42       return "ExecutionInterceptor";
43    }
44
45    public Object JavaDoc invoke(Invocation invocation) throws Throwable JavaDoc
46    {
47       System.out.println("execution intercepted");
48       intercepted = true;
49       Object JavaDoc[] invArgs = getArguments(invocation);
50       if (invArgs == null)
51       {
52          argsLength = 0;
53       }
54       else
55       {
56          argsLength = invArgs.length;
57       }
58       args = invArgs;
59
60       return invocation.invokeNext();
61    }
62    
63    private Object JavaDoc[] getArguments(Invocation invocation)
64    {
65       if (invocation instanceof MethodInvocation)
66       {
67          return ((MethodInvocation)invocation).getArguments();
68       }
69       else if (invocation instanceof ConstructorInvocation)
70       {
71          return ((ConstructorInvocation)invocation).getArguments();
72       }
73       return new Object JavaDoc[0];
74    }
75
76 }
77
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