1 | |
|
2 | |
|
3 | |
|
4 | |
|
5 | |
|
6 | |
|
7 | |
|
8 | |
|
9 | |
|
10 | |
|
11 | |
|
12 | |
|
13 | |
|
14 | |
|
15 | |
|
16 | |
|
17 | |
|
18 | |
|
19 | |
package org.boretti.drools.integration.drools5; |
20 | |
|
21 | |
import org.drools.RuleBase; |
22 | |
import org.objectweb.asm.MethodVisitor; |
23 | |
import org.objectweb.asm.commons.AdviceAdapter; |
24 | |
import org.objectweb.asm.Opcodes; |
25 | |
import org.objectweb.asm.Type; |
26 | |
|
27 | |
|
28 | |
|
29 | |
|
30 | |
|
31 | |
class DroolsAddConstructorMethodVisitor extends AdviceAdapter { |
32 | |
|
33 | |
private String parent; |
34 | |
|
35 | |
private String droolsName; |
36 | |
|
37 | |
private String droolsRule; |
38 | |
|
39 | |
public DroolsAddConstructorMethodVisitor( |
40 | |
MethodVisitor mv, |
41 | |
int access, |
42 | |
String name, |
43 | |
String desc, |
44 | |
String parent, |
45 | |
String droolsName, |
46 | |
String droolsRule) { |
47 | 0 | super(mv, access, name, desc); |
48 | 0 | this.parent=parent; |
49 | 0 | this.droolsName=droolsName; |
50 | 0 | this.droolsRule=droolsRule; |
51 | 0 | } |
52 | |
|
53 | |
|
54 | |
|
55 | |
|
56 | |
@Override |
57 | |
protected void onMethodEnter() { |
58 | 0 | this.visitVarInsn(Opcodes.ALOAD,0); |
59 | 0 | this.visitInsn(Opcodes.DUP); |
60 | 0 | this.visitInsn(Opcodes.DUP); |
61 | 0 | this.visitInsn(Opcodes.ICONST_0); |
62 | 0 | this.visitFieldInsn(Opcodes.PUTFIELD,Type.getObjectType(parent).getInternalName(), droolsName, Type.BOOLEAN_TYPE.getDescriptor()); |
63 | 0 | this.visitTypeInsn(Opcodes.NEW,Type.getType(DroolsProvider.class).getInternalName()); |
64 | 0 | this.visitInsn(Opcodes.DUP); |
65 | 0 | this.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getType(DroolsProvider.class).getInternalName(), "<init>","()V"); |
66 | 0 | this.visitInsn(Opcodes.SWAP); |
67 | 0 | this.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getObjectType(parent).getInternalName(), "getClass", "()Ljava/lang/Class;"); |
68 | 0 | this.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getType(DroolsProvider.class).getInternalName(), "getRuleBase","(Ljava/lang/Class;)Lorg/drools/RuleBase;"); |
69 | 0 | this.visitFieldInsn(Opcodes.PUTFIELD,Type.getObjectType(parent).getInternalName(), droolsRule, Type.getType(RuleBase.class).getDescriptor()); |
70 | 0 | } |
71 | |
|
72 | |
|
73 | |
@Override |
74 | |
public void visitMaxs(int maxStack, int maxLocals) { |
75 | 0 | super.visitMaxs(maxStack+4, maxLocals); |
76 | 0 | } |
77 | |
|
78 | |
} |