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Java > Open Source Codes > ch > ethz > prose > filter > ExceptionsClassFilter


1 //
2 // This file is part of the prose package.
3 //
4 // The contents of this file are subject to the Mozilla Public License
5 // Version 1.1 (the "License"); you may not use this file except in
6 // compliance with the License. You may obtain a copy of the License at
7 // http://www.mozilla.org/MPL/
8 //
9 // Software distributed under the License is distributed on an "AS IS" basis,
10 // WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
11 // for the specific language governing rights and limitations under the
12 // License.
13 //
14 // The Original Code is prose.
15 //
16 // The Initial Developer of the Original Code is Andrei Popovici. Portions
17 // created by Andrei Popovici are Copyright (C) 2002 Andrei Popovici.
18 // All Rights Reserved.
19 //
20 // Contributor(s):
21 // $Id: ExceptionsClassFilter.java,v 1.2 2004/05/12 09:41:55 anicoara Exp $
22 // =====================================================================
23 //
24 // (history at end)
25 //
26
27 package ch.ethz.prose.filter;
28
29 // used packages
30 import java.util.*;
31 import java.io.*;
32 import ch.ethz.jvmai.JoinPointKinds;
33 import ch.ethz.jvmai.JoinPoint;
34 import ch.ethz.jvmai.CodeJoinPoint;
35 import ch.ethz.prose.engine.JoinPointRequest;
36 import ch.ethz.prose.engine.ExceptionThrowRequest;
37 import ch.ethz.prose.engine.ExceptionCatchRequest;
38
39 /**
40  * Class ExceptionsClassFilter XXX
41  *
42  * @version $Revision: 1.2 $
43  * @author Andrei Popovici
44  * @author Angela Nicoara
45  */
46 public
47 class ExceptionsClassFilter extends PointCutter implements JoinPointKinds {
48
49   NameExpression regexp;
50   public ExceptionsClassFilter(String JavaDoc cls)
51   {
52     acceptMask = MASK_EXCEPTION_THROW_ARGS_JP | MASK_EXCEPTION_CATCH_ARGS_JP;
53     mayFilterStaticallyMask = MASK_EXCEPTION_THROW_ARGS_JP | MASK_EXCEPTION_CATCH_ARGS_JP;
54     canFilterStaticallyMask = MASK_EXCEPTION_THROW_ARGS_JP | MASK_EXCEPTION_CATCH_ARGS_JP;
55     
56     regexp = new NameExpression(cls);
57   }
58
59   protected boolean doIsSpecialRequest(JoinPointRequest jpr)
60   {
61     //System.err.println("ExceptionsClassFilter - doIsSpecialRequest -> checking whether " + ((ExceptionCatchRequest)jpr).getExceptionClass() + " matches " + regexp); //angy test
62 //System.err.println("ExceptionsClassFilter - doIsSpecialRequest -> checking whether " + ((ExceptionThrowRequest)jpr).getExceptionClass() + " matches " + regexp); //angy test
63 // only for exception throw and exception catch
64 boolean result;
65     int jprType = jpr.getMask() & ( MASK_EXCEPTION_THROW_ARGS_JP | MASK_EXCEPTION_CATCH_ARGS_JP);
66     switch (jprType)
67     {
68       case MASK_EXCEPTION_THROW_ARGS_JP:
69           result = regexp.classMatchesRegexp(((ExceptionThrowRequest)jpr).getExceptionClass());
70           break;
71       case MASK_EXCEPTION_CATCH_ARGS_JP:
72           result = regexp.classMatchesRegexp(((ExceptionCatchRequest)jpr).getExceptionClass());
73           break;
74       default: throw new Error JavaDoc("cannot get unrequested request");
75     }
76     //System.err.println("ExceptionsClassFilter - doIsSpecialRequest ->>" + result); //angy test
77 return result;
78   }
79
80   protected boolean doIsSpecialEvent(CodeJoinPoint jp)
81     {
82       throw new Error JavaDoc("The PointCutter contract is not correct");
83     }
84
85 }
86
87
88 //======================================================================
89 //
90 // $Log: ExceptionsClassFilter.java,v $
91 // Revision 1.2 2004/05/12 09:41:55 anicoara
92 // Remove the README.RVM file
93 //
94 // Revision 1.1.1.1 2003/07/02 15:30:52 apopovic
95 // Imported from ETH Zurich
96 //
97 // Revision 1.3 2003/07/02 12:42:56 anicoara
98 // Added CatchJoinPoint Functionality (Requests, Join-Points, Filters, CatchCuts, Tests)
99 //
100 // Revision 1.2 2003/05/06 15:51:36 popovici
101 // Mozilla-ification
102 //
103 // Revision 1.1 2003/05/05 13:58:03 popovici
104 // renaming from runes to prose
105 //
106 // Revision 1.3 2003/04/27 13:08:50 popovici
107 // Specializers renamed to PointCutter
108 //
109 // Revision 1.2 2003/04/17 12:49:33 popovici
110 // Refactoring of the crosscut package
111 // ExceptionCut renamed to ThrowCut
112 // McutSignature is now SignaturePattern
113 //
114 // Revision 1.1 2003/04/17 08:47:36 popovici
115 // Important functionality additions
116 // - Cflow specializers
117 // - Restructuring of the MethodCut, SetCut, ThrowCut, and GetCut (they are much smaller)
118 // - Transactional capabilities
119 // - Total refactoring of Specializer evaluation, which permits fine-grained distinction
120 // between static and dynamic specializers.
121 // - Functionality pulled up in abstract classes
122 // - Uniformization of advice methods patterns and names
123 //
124
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