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1
4 package com.tc.geronimo.transform;
5
6 import com.tc.asm.ClassAdapter;
7 import com.tc.asm.ClassVisitor;
8 import com.tc.asm.MethodAdapter;
9 import com.tc.asm.MethodVisitor;
10 import com.tc.asm.Opcodes;
11 import com.tc.asm.Type;
12 import com.tc.object.bytecode.ClassAdapterFactory;
13
14 public class HostGBeanAdapter extends ClassAdapter implements ClassAdapterFactory {
15
16 public HostGBeanAdapter() {
17 super(null);
18 }
19
20 private HostGBeanAdapter(ClassVisitor cv, ClassLoader  caller) {
21 super(cv);
22 }
23
24 public ClassAdapter create(ClassVisitor visitor, ClassLoader loader) {
25 return new HostGBeanAdapter(visitor, loader);
26 }
27
28 public MethodVisitor visitMethod(int access, String name, String desc, String signature, String [] exceptions) {
29 MethodVisitor mv = super.visitMethod(access, name, desc, signature, exceptions);
30
31 if ("<init>".equals(name) && Type.getArgumentTypes(desc).length > 0) {
32 mv = new CstrAdapter(mv);
33 }
34
35 return mv;
36
37 }
38
39 private static class CstrAdapter extends MethodAdapter implements Opcodes {
40
41 private boolean done = false;
42
43 public CstrAdapter(MethodVisitor mv) {
44 super(mv);
45 }
46
47 public void visitMethodInsn(int opcode, String owner, String name, String desc) {
48 super.visitMethodInsn(opcode, owner, name, desc);
49
50 if (INVOKESPECIAL == opcode & "<init>".equals(name)) {
51 if (!done) {
52 done = true;
53 mv.visitVarInsn(ALOAD, 0);
54 mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;");
55 mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getClassLoader", "()Ljava/lang/ClassLoader;");
56 mv.visitMethodInsn(INVOKESTATIC, "com/tc/object/bytecode/hook/impl/SessionsHelper", "injectClasses",
57 "(Ljava/lang/ClassLoader;)V");
58 }
59 }
60
61 }
62
63 }
64
65 }
66 |
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