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1
27 package ch.ethz.prose.filter;
28
29 import java.util.*;
31 import java.io.*;
32 import java.lang.reflect.Modifier  ;
33
34 import ch.ethz.jvmai.JoinPointKinds;
35 import ch.ethz.jvmai.JoinPoint;
36 import ch.ethz.jvmai.CodeJoinPoint;
37 import ch.ethz.prose.engine.JoinPointRequest;
38 import ch.ethz.prose.engine.MethodEntryRequest;
39 import ch.ethz.prose.engine.MethodExitRequest;
40 import ch.ethz.prose.engine.MethodRedefineRequest;
41
42
48 public
49 class ExecutionsAclFilter extends PointCutter implements JoinPointKinds
50 {
51 private boolean opMode;
52 private int theModifier;
53 public static boolean FILTER_METHOD_MODIFIERS = true;
54 public static boolean FILTER_CLASS_MODIFIERS = false;
55
56 public ExecutionsAclFilter(int modifier, boolean opMode)
57 {
58 this.theModifier = modifier;
59 this.opMode = opMode;
60 acceptMask = MASK_ALL_JP;
61 mayFilterStaticallyMask = MASK_METHOD_ENTRY_JP | MASK_METHOD_EXIT_JP | MASK_METHOD_REDEFINE_JP;
62 canFilterStaticallyMask = MASK_METHOD_ENTRY_JP | MASK_METHOD_EXIT_JP | MASK_METHOD_REDEFINE_JP;
63
64 }
65
66 protected boolean doIsSpecialRequest(JoinPointRequest jpr)
67 {
68 int modifiers = 0;
69 switch(jpr.getMask() & (MASK_METHOD_ENTRY_JP | MASK_METHOD_EXIT_JP))
70 {
71 case MASK_METHOD_ENTRY_JP:
72 if (opMode == FILTER_METHOD_MODIFIERS)
73 modifiers = ((MethodEntryRequest)jpr).getMethod().getModifiers();
74 else
75 modifiers = ((MethodEntryRequest)jpr).getTargetClass().getModifiers();
76 break;
77 case MASK_METHOD_EXIT_JP:
78 if (opMode == FILTER_METHOD_MODIFIERS)
79 modifiers = ((MethodExitRequest)jpr).getMethod().getModifiers();
80 else
81 modifiers = ((MethodExitRequest)jpr).getTargetClass().getModifiers();
82 break;
83 case MASK_METHOD_REDEFINE_JP:
84 if (opMode == FILTER_METHOD_MODIFIERS)
85 modifiers = ((MethodRedefineRequest)jpr).getMethod().getModifiers();
86 else
87 modifiers = ((MethodRedefineRequest)jpr).getTargetClass().getModifiers();
88 break;
89 default:
90 throw new Error ("Illegal join point request allowed by the PointCutter");
91 }
92
93 return (modifiers & theModifier) == theModifier;
94 }
95
96 protected boolean doIsSpecialEvent(CodeJoinPoint jp)
97 {
98 int modifiers;
99 if (opMode == FILTER_METHOD_MODIFIERS)
100 modifiers = jp.getMethod().getModifiers();
101 else
102 modifiers = jp.getMethod().getDeclaringClass().getModifiers();
103
104 return (modifiers & theModifier) == theModifier;
105 }
106
107 public String toString()
108 {
109 String result = "";
110 if (opMode = FILTER_METHOD_MODIFIERS)
111 result += "Within.methods(";
112 else
113 result += "Within.type(";
114
115 switch (theModifier)
116 {
117 case Modifier.FINAL: result+= "final"; break;
118 case Modifier.PRIVATE: result+= "private";break;
119 case Modifier.PROTECTED: result+= "protected"; break;
120 case Modifier.PUBLIC: result+= "public"; break;
121 case Modifier.STATIC: result+= "static"; break;
122 case Modifier.SYNCHRONIZED: result+= "synchronized"; break;
123 case Modifier.TRANSIENT: result+= "transient"; break;
124 }
125 result += ")";
126 return result;
127 }
128 }
129
130
131 |
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