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Java > Open Source Codes > org > jboss > test > aop > bean > SimpleInterceptor


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.bean;
23
24 import org.jboss.aop.joinpoint.FieldInvocation;
25 import org.jboss.aop.advice.Interceptor;
26 import org.jboss.aop.joinpoint.Invocation;
27 import org.jboss.aop.joinpoint.MethodInvocation;
28 import org.jboss.aop.joinpoint.FieldReadInvocation;
29 import org.jboss.aop.joinpoint.FieldWriteInvocation;
30
31 import java.lang.reflect.Field JavaDoc;
32 import java.lang.reflect.Method JavaDoc;
33 /**
34  *
35  * @author <a HREF="mailto:bill@jboss.org">Bill Burke</a>
36  * @version $Revision: 37406 $
37  */
38 public class SimpleInterceptor implements org.jboss.aop.advice.Interceptor
39 {
40
41    public String JavaDoc getName()
42    {
43       return "SimpleInterceptor";
44    }
45
46    public Object JavaDoc invoke(org.jboss.aop.joinpoint.Invocation invocation) throws Throwable JavaDoc
47    {
48       System.out.println("interception: " + invocation.getClass().getName());
49       if (invocation instanceof MethodInvocation)
50       {
51          org.jboss.aop.joinpoint.MethodInvocation methodInvocation = (org.jboss.aop.joinpoint.MethodInvocation)invocation;
52          Method JavaDoc m = methodInvocation.getMethod();
53          if (m.getName().equals("whazup")) return "nada";
54          lastIntercepted = m.getName();
55          String JavaDoc transattr = (String JavaDoc)invocation.getMetaData("transaction", "trans-attribute");
56          System.out.println("trans-attribute: " + transattr);
57          lastTransAttributeAccessed = transattr;
58       }
59       else if (invocation instanceof FieldReadInvocation || invocation instanceof FieldWriteInvocation)
60       {
61          org.jboss.aop.joinpoint.FieldInvocation fieldInvocation = (org.jboss.aop.joinpoint.FieldInvocation)invocation;
62          Field JavaDoc field = fieldInvocation.getField();
63          System.out.println("**** simple: " + field.getName());
64          lastFieldIntercepted = field.getName();
65          Object JavaDoc obj =invocation.getMetaData("transaction", "trans-attribute");
66          System.out.println(field.getName() + "type**" + obj.getClass().getName());
67          String JavaDoc transattr = (String JavaDoc)invocation.getMetaData("transaction", "trans-attribute");
68          System.out.println("trans-attribute: " + transattr);
69          lastFieldTransAttributeAccessed = transattr;
70       }
71       return invocation.invokeNext();
72    }
73
74    public static String JavaDoc lastIntercepted;
75    public static String JavaDoc lastTransAttributeAccessed;
76    public static String JavaDoc lastFieldIntercepted;
77    public static String JavaDoc lastFieldTransAttributeAccessed;
78 }
79
80
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