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1
22 package org.jboss.aop.pointcut.ast;
23
24 import java.util.regex.Matcher  ;
25 import java.util.regex.Pattern ;
26
27
33 public class ClassExpression
34 {
35 private String original;
36 private Pattern classPattern;
37 private boolean isAnnotation = false;
38 private boolean isInstanceOf = false;
39 private boolean isTypedef = false;
40
41 private boolean isInstanceOfAnnotated = false;
42
43 public ClassExpression(String expr)
44 {
45 original = expr;
46 if (expr.startsWith("@"))
47 {
48 isAnnotation = true;
49 }
50 else
51 {
52 expr = original;
53 if (expr.startsWith("$instanceof{"))
54 {
55 isInstanceOf = true;
56 expr = expr.substring(12, expr.lastIndexOf("}"));
57 isInstanceOfAnnotated = (expr.startsWith("@"));
58 }
59 else if (expr.startsWith("$typedef{"))
60 {
61 isTypedef = true;
62 expr = expr.substring(9, expr.lastIndexOf("}"));
63 }
64
65 if (!isAnnotation)
66 {
67 expr = expr.replaceAll("\\.", "\\\\.");
68 expr = expr.replaceAll("\\*", ".*");
69 expr = expr.replaceAll("\\[", "\\\\[");
70 expr = expr.replaceAll("]", "\\\\]");
71 expr = expr.replaceAll("\\$", "\\\\\\$");
72 classPattern = Pattern.compile(expr);
73 }
74 }
75
76 }
77
78 public boolean isSimple()
79 {
80 return !(isAnnotation || isInstanceOf || isTypedef || isInstanceOfAnnotated);
81 }
82
83
84 public boolean matches(String classname)
85 {
86 if (isAnnotation) return false;
87 Matcher m = classPattern.matcher(classname);
88 return m.matches();
89 }
90
91 public boolean matchesAnnotation(String annotation)
92 {
93 if (!isAnnotation) return false;
94 Matcher m = classPattern.matcher(annotation);
95 return m.matches();
96 }
97
98 public boolean isAnnotation()
99 {
100 return this.isAnnotation;
101 }
102
103 public boolean isInstanceOf()
104 {
105 return this.isInstanceOf;
106 }
107
108 public boolean isTypedef()
109 {
110 return this.isTypedef;
111 }
112
113 public boolean isInstanceOfAnnotated()
114 {
115 return this.isInstanceOfAnnotated;
116 }
117
118 public String getInstanceOfAnnotation()
119 {
120 if (!isInstanceOfAnnotated)
121 {
122 return null;
123 }
124 return original.substring(12, original.lastIndexOf("}"));
125 }
126
127 public String getOriginal()
128 {
129 return original;
130 }
131
132 public static String simpleType(Class type)
133 {
134 Class ret = type;
135 if (ret.isArray())
136 {
137 Class arr = ret;
138 String array = "";
139 while (arr.isArray())
140 {
141 array += "[]";
142 arr = arr.getComponentType();
143 }
144 return arr.getName() + array;
145 }
146 return ret.getName();
147 }
148
149 public static void main(String [] args)
150 {
151 System.out.println(simpleType(Float.TYPE));
152 }
153 }
154 |
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