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1
4 package com.tc.object.bytecode;
5
6 import com.tc.asm.ClassAdapter;
7 import com.tc.asm.ClassVisitor;
8 import com.tc.asm.Label;
9 import com.tc.asm.MethodAdapter;
10 import com.tc.asm.MethodVisitor;
11 import com.tc.asm.Opcodes;
12
13
18 public class JavaLangReflectProxyClassAdapter extends ClassAdapter implements Opcodes {
19 private final static String  FILTER_INTERFACES_METHOD_NAME = ByteCodeUtil.TC_METHOD_PREFIX + "filterInterfaces";
20 private final static String PROXY_INTERFACES_FIELD_NAME = ByteCodeUtil.TC_FIELD_PREFIX + "proxyInterfaces";
21
22 public JavaLangReflectProxyClassAdapter(ClassVisitor cv) {
23 super(cv);
24 }
25
26 public MethodVisitor visitMethod(int access, String name, String desc, String signature, String [] exceptions) {
27 MethodVisitor mv = super.visitMethod(access, name, desc, signature, exceptions);
28 if ("getProxyClass".equals(name) && "(Ljava/lang/ClassLoader;[Ljava/lang/Class;)Ljava/lang/Class;".equals(desc)) {
29 mv = new FilterInterfacesMethodAdapter(mv);
30 } else if ("<clinit>".equals(name)) {
31 mv = new StaticInitializerMethodAdapter(mv);
32 }
33
34 return mv;
35 }
36
37 public void visitEnd() {
38 addProxyInterfacesField();
39 addFilterInterfacesMethod();
40 super.visitEnd();
41 }
42
43 private void addProxyInterfacesField() {
44 cv.visitField(ACC_PRIVATE + ACC_FINAL + ACC_STATIC + ACC_SYNTHETIC, PROXY_INTERFACES_FIELD_NAME, "[Ljava/lang/Class;", null, null);
45 }
46
47 private void addFilterInterfacesMethod() {
48 MethodVisitor mv = cv.visitMethod(ACC_PRIVATE + ACC_STATIC + ACC_SYNTHETIC, FILTER_INTERFACES_METHOD_NAME, "([Ljava/lang/Class;)[Ljava/lang/Class;", null, null);
49 mv.visitCode();
50 Label l0 = new Label();
51 mv.visitLabel(l0);
52 mv.visitTypeInsn(NEW, "java/util/ArrayList");
53 mv.visitInsn(DUP);
54 mv.visitMethodInsn(INVOKESPECIAL, "java/util/ArrayList", "<init>", "()V");
55 mv.visitVarInsn(ASTORE, 1);
56 Label l1 = new Label();
57 mv.visitLabel(l1);
58 mv.visitInsn(ICONST_0);
59 mv.visitVarInsn(ISTORE, 2);
60 Label l2 = new Label();
61 mv.visitLabel(l2);
62 Label l3 = new Label();
63 mv.visitJumpInsn(GOTO, l3);
64 Label l4 = new Label();
65 mv.visitLabel(l4);
66 mv.visitVarInsn(ALOAD, 0);
67 mv.visitVarInsn(ILOAD, 2);
68 mv.visitInsn(AALOAD);
69 mv.visitVarInsn(ASTORE, 3);
70 Label l5 = new Label();
71 mv.visitLabel(l5);
72 mv.visitInsn(ICONST_0);
73 mv.visitVarInsn(ISTORE, 4);
74 Label l6 = new Label();
75 mv.visitLabel(l6);
76 mv.visitInsn(ICONST_0);
77 mv.visitVarInsn(ISTORE, 5);
78 Label l7 = new Label();
79 mv.visitLabel(l7);
80 Label l8 = new Label();
81 mv.visitJumpInsn(GOTO, l8);
82 Label l9 = new Label();
83 mv.visitLabel(l9);
84 mv.visitFieldInsn(GETSTATIC, "java/lang/reflect/Proxy", PROXY_INTERFACES_FIELD_NAME, "[Ljava/lang/Class;");
85 mv.visitVarInsn(ILOAD, 5);
86 mv.visitInsn(AALOAD);
87 mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getName", "()Ljava/lang/String;");
88 mv.visitVarInsn(ALOAD, 3);
89 mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getName", "()Ljava/lang/String;");
90 mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "equals", "(Ljava/lang/Object;)Z");
91 Label l10 = new Label();
92 mv.visitJumpInsn(IFEQ, l10);
93 Label l11 = new Label();
94 mv.visitLabel(l11);
95 mv.visitFieldInsn(GETSTATIC, "java/lang/reflect/Proxy", PROXY_INTERFACES_FIELD_NAME, "[Ljava/lang/Class;");
96 mv.visitVarInsn(ILOAD, 5);
97 mv.visitInsn(AALOAD);
98 mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getName", "()Ljava/lang/String;");
99 mv.visitLdcInsn("com.tc");
100 mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "startsWith", "(Ljava/lang/String;)Z");
101 mv.visitJumpInsn(IFEQ, l10);
102 Label l12 = new Label();
103 mv.visitLabel(l12);
104 mv.visitInsn(ICONST_1);
105 mv.visitVarInsn(ISTORE, 4);
106 Label l13 = new Label();
107 mv.visitLabel(l13);
108 Label l14 = new Label();
109 mv.visitJumpInsn(GOTO, l14);
110 mv.visitLabel(l10);
111 mv.visitIincInsn(5, 1);
112 mv.visitLabel(l8);
113 mv.visitVarInsn(ILOAD, 5);
114 mv.visitFieldInsn(GETSTATIC, "java/lang/reflect/Proxy", PROXY_INTERFACES_FIELD_NAME, "[Ljava/lang/Class;");
115 mv.visitInsn(ARRAYLENGTH);
116 mv.visitJumpInsn(IF_ICMPLT, l9);
117 mv.visitLabel(l14);
118 mv.visitVarInsn(ILOAD, 4);
119 Label l15 = new Label();
120 mv.visitJumpInsn(IFNE, l15);
121 Label l16 = new Label();
122 mv.visitLabel(l16);
123 mv.visitVarInsn(ALOAD, 1);
124 mv.visitVarInsn(ALOAD, 3);
125 mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "add", "(Ljava/lang/Object;)Z");
126 mv.visitInsn(POP);
127 mv.visitLabel(l15);
128 mv.visitIincInsn(2, 1);
129 mv.visitLabel(l3);
130 mv.visitVarInsn(ILOAD, 2);
131 mv.visitVarInsn(ALOAD, 0);
132 mv.visitInsn(ARRAYLENGTH);
133 mv.visitJumpInsn(IF_ICMPLT, l4);
134 Label l17 = new Label();
135 mv.visitLabel(l17);
136 mv.visitVarInsn(ALOAD, 1);
137 mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "size", "()I");
138 mv.visitTypeInsn(ANEWARRAY, "java/lang/Class");
139 mv.visitVarInsn(ASTORE, 2);
140 Label l18 = new Label();
141 mv.visitLabel(l18);
142 mv.visitVarInsn(ALOAD, 1);
143 mv.visitVarInsn(ALOAD, 2);
144 mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "toArray", "([Ljava/lang/Object;)[Ljava/lang/Object;");
145 mv.visitInsn(POP);
146 Label l19 = new Label();
147 mv.visitLabel(l19);
148 mv.visitVarInsn(ALOAD, 2);
149 mv.visitInsn(ARETURN);
150 Label l20 = new Label();
151 mv.visitLabel(l20);
152 mv.visitMaxs(0, 0);
153 mv.visitEnd();
154 }
155
156 private static class FilterInterfacesMethodAdapter extends MethodAdapter implements Opcodes {
157 public FilterInterfacesMethodAdapter(MethodVisitor mv) {
158 super(mv);
159 }
160
161 public void visitCode() {
162 super.visitCode();
163 mv.visitVarInsn(ALOAD, 1);
164 mv.visitMethodInsn(INVOKESTATIC, "java/lang/reflect/Proxy", FILTER_INTERFACES_METHOD_NAME, "([Ljava/lang/Class;)[Ljava/lang/Class;");
165 mv.visitVarInsn(ASTORE, 1);
166 }
167 }
168
169 private static class StaticInitializerMethodAdapter extends MethodAdapter implements Opcodes {
170 public StaticInitializerMethodAdapter(MethodVisitor mv) {
171 super(mv);
172 }
173
174 public void visitInsn(int opcode) {
175 if (RETURN == opcode) {
176 mv.visitTypeInsn(NEW, "java/lang/reflect/Proxy");
177 mv.visitInsn(DUP);
178 mv.visitMethodInsn(INVOKESPECIAL, "java/lang/reflect/Proxy", "<init>", "()V");
179 mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;");
180 mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getInterfaces", "()[Ljava/lang/Class;");
181 mv.visitFieldInsn(PUTSTATIC, "java/lang/reflect/Proxy", PROXY_INTERFACES_FIELD_NAME, "[Ljava/lang/Class;");
182 }
183 super.visitInsn(opcode);
184 }
185 }
186
187 }
188 |
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