|
1
22 package org.jboss.aop.annotation.util;
23
24 import javassist.ClassPool;
25 import javassist.CtClass;
26 import javassist.bytecode.AnnotationsAttribute;
27 import javassist.bytecode.ClassFile;
28 import javassist.bytecode.FieldInfo;
29 import javassist.bytecode.MethodInfo;
30 import javassist.bytecode.annotation.Annotation;
31
32 import java.util.Iterator  ;
33 import java.util.List ;
34 import java.util.Set ;
35
36 public class FindAnnotations
37 {
38 public static ClassPool pool;
39
40 public static void main(String [] args) throws Exception
41 {
42 pool = ClassPool.getDefault();
43 pool.appendSystemPath();
44 pool.insertClassPath(".");
45 CtClass clazz = pool.get(args[0]);
46 clazz.getClassFile2().getConstPool().print();
47 printClassAttributes(clazz);
48 }
49
50 public static void printAnnotations(Annotation[] annotations)
51 {
52 for (int i = 0; i < annotations.length; i++)
53 {
54 printAnnotation(annotations[i]);
55 }
56 }
57
58 public static void printClassAttributes(CtClass clazz) throws Exception
59 {
60 ClassFile cf = clazz.getClassFile();
61 AnnotationsAttribute invisible = (AnnotationsAttribute) cf.getAttribute(AnnotationsAttribute.invisibleTag);
62 if (invisible != null)
63 {
64 System.out.println("** invisible class annotations **");
65 Annotation[] annotations = invisible.getAnnotations();
66 printAnnotations(annotations);
67 }
68
69 AnnotationsAttribute visible = (AnnotationsAttribute) cf.getAttribute(AnnotationsAttribute.visibleTag);
70 if (visible != null)
71 {
72 System.out.println("** visible class annotations **");
73 Annotation[] annotations = visible.getAnnotations();
74 printAnnotations(annotations);
75 }
76
77 System.out.println("**** method annotations ****");
78 List methods = cf.getMethods();
79 for (int i = 0; i < methods.size(); i++)
80 {
81 MethodInfo mi = (MethodInfo) methods.get(i);
82 System.out.println("method: " + mi.getName());
83 System.out.println("CONST POOL: ");
84 mi.getConstPool().print();
85 System.out.println("-------------");
86 invisible = (AnnotationsAttribute) mi.getAttribute(AnnotationsAttribute.invisibleTag);
87 if (invisible != null)
88 {
89 System.out.println("** invisible method annotations **");
90 Annotation[] annotations = invisible.getAnnotations();
91 printAnnotations(annotations);
92 }
93
94 visible = (AnnotationsAttribute) mi.getAttribute(AnnotationsAttribute.visibleTag);
95 if (visible != null)
96 {
97 System.out.println("** visible method annotations **");
98 Annotation[] annotations = visible.getAnnotations();
99 printAnnotations(annotations);
100 }
101
102 System.out.println("----");
103 }
104
105 System.out.println("**** field annotations ****");
106 List fields = cf.getFields();
107 for (int i = 0; i < fields.size(); i++)
108 {
109 FieldInfo mi = (FieldInfo) fields.get(i);
110 System.out.println("field: " + mi.getName());
111 System.out.println("CONST POOL: ");
112 mi.getConstPool().print();
113 System.out.println("field: " + mi.getName());
114 invisible = (AnnotationsAttribute) mi.getAttribute(AnnotationsAttribute.invisibleTag);
115 if (invisible != null)
116 {
117 System.out.println("** invisible method annotations **");
118 Annotation[] annotations = invisible.getAnnotations();
119 printAnnotations(annotations);
120 }
121
122 visible = (AnnotationsAttribute) mi.getAttribute(AnnotationsAttribute.visibleTag);
123 if (visible != null)
124 {
125 System.out.println("** visible method annotations **");
126 Annotation[] annotations = visible.getAnnotations();
127 printAnnotations(annotations);
128 }
129
130 System.out.println("----");
131 }
132 }
133
134 public static void printAnnotation(Annotation info)
135 {
136 System.out.print("@" + info.getTypeName());
137 Set members = info.getMemberNames();
138 if (members != null)
139 {
140 System.out.print("(");
141 Iterator mit = members.iterator();
142 while (mit.hasNext())
143 {
144 String name = (String ) mit.next();
145 System.out.print(name + "=" + info.getMemberValue(name).toString());
146 if (mit.hasNext()) System.out.print(", ");
147 }
148 System.out.print(")");
149 }
150 System.out.println("");
151 }
152 }
153
154 |
Popular Tags |
Java API By Example, From Geeks To Geeks.