Example usage for org.objectweb.asm MethodVisitor visitCode

List of usage examples for org.objectweb.asm MethodVisitor visitCode

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Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitCode.

Prototype

public void visitCode()

Source Link

Document

Starts the visit of the method's code, if any (i.e.

Usage

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createContainerConstructor(final String enhancingClassName, final String enhancedClassName,
        final String descEnhancer, final ClassWriter cw) {
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, Enhancer.CONSTRUCTOR_INIT,
            Enhancer.makeDescription(Void.TYPE, Class.class, SessionImpl.class, Object.class, Boolean.TYPE),
            null, null);// w  w w .  ja  v a 2 s .c  om
    mv.visitCode();

    final Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, enhancingClassName, Enhancer.CONSTRUCTOR_INIT,
            Enhancer.makeDescription(Void.TYPE));

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_TYPE,
            Enhancer.DESCRIPTOR_CLASS);

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 2);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION,
            Enhancer.DESCRIPTOR_SESSION);

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 3);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_ID,
            Enhancer.DESCRIPTOR_OBJECT);

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ILOAD, 4);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INITIALIZED,
            Enhancer.DESCRIPTOR_BOOLEAN);

    mv.visitInsn(Opcodes.RETURN);

    final Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, l0, l1, 0);
    mv.visitLocalVariable("type", Enhancer.DESCRIPTOR_CLASS, null, l0, l1, 1);
    mv.visitLocalVariable("session", Enhancer.DESCRIPTOR_SESSION, null, l0, l1, 2);
    mv.visitLocalVariable("id", Enhancer.DESCRIPTOR_OBJECT, null, l0, l1, 3);
    mv.visitLocalVariable("initialized", Enhancer.DESCRIPTOR_BOOLEAN, null, l0, l1, 4);
    mv.visitMaxs(0, 0);

    mv.visitEnd();
}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createMethodCheck(final String enhancedClassName, final String descEnhancer,
        final ClassWriter cw) {
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PRIVATE, Enhancer.METHOD_ENHANCED_CHECK,
            Enhancer.makeDescription(Void.TYPE), null, null);
    mv.visitCode();

    final Label lCheckInternal = new Label();
    final Label lCheckInitialized = new Label();
    final Label lReturn = new Label();
    final Label lFind = new Label();
    final Label lInitialized = new Label();
    final Label lChanged = new Label();
    final Label lOut = new Label();

    // if (!this.__enhanced__$$__internal) { return }
    mv.visitLabel(lCheckInternal);/*ww w.j  a  va2  s .  c om*/
    mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {});
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INTERNAL,
            Enhancer.DESCRIPTOR_BOOLEAN);
    mv.visitJumpInsn(Opcodes.IFEQ, lCheckInitialized);
    mv.visitInsn(Opcodes.RETURN);

    // if (!this.__enhanced__$$__initialized) {
    mv.visitLabel(lCheckInitialized);
    mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {});
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INITIALIZED,
            Enhancer.DESCRIPTOR_BOOLEAN);
    mv.visitJumpInsn(Opcodes.IFNE, lChanged);

    //     if (this.__enhanced_$$__session == null)
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION,
            Enhancer.DESCRIPTOR_SESSION);
    mv.visitJumpInsn(Opcodes.IFNONNULL, lFind);

    //         throw new PersistenceException("No session to initialize the instance");
    mv.visitTypeInsn(Opcodes.NEW, Enhancer.INTERNAL_PERSISTENCE_EXCEPTION);
    mv.visitInsn(Opcodes.DUP);
    mv.visitLdcInsn("No session to initialize the instance");
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, Enhancer.INTERNAL_PERSISTENCE_EXCEPTION,
            Enhancer.CONSTRUCTOR_INIT, Enhancer.makeDescription(Void.TYPE, String.class));
    mv.visitInsn(Opcodes.ATHROW);

    //       this.__enhanced_$$__session.getEntityManager().find(this.__enhanced_$$__type, this.__enhanced__$$__id);
    mv.visitLabel(lFind);
    mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {});
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION,
            Enhancer.DESCRIPTOR_SESSION);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Enhancer.INTERNAL_SESSION, Enhancer.METHOD_GET_ENTITY_MANAGER,
            Enhancer.makeDescription(EntityManagerImpl.class));
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_TYPE,
            Enhancer.DESCRIPTOR_CLASS);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_ID,
            Enhancer.DESCRIPTOR_OBJECT);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Enhancer.INTERNAL_ENTITY_MANAGER, Enhancer.METHOD_FIND,
            Enhancer.makeDescription(Object.class, Class.class, Object.class));
    mv.visitInsn(Opcodes.POP);

    //   this.__enhanced__$$__initialized = true;
    mv.visitLabel(lInitialized);
    mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {});
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitInsn(Opcodes.ICONST_1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INITIALIZED,
            Enhancer.DESCRIPTOR_BOOLEAN);

    // if (this.__enhanced_$$__session != null)
    mv.visitLabel(lChanged);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION,
            Enhancer.DESCRIPTOR_SESSION);
    mv.visitJumpInsn(Opcodes.IFNULL, lReturn);

    //     this.__enhanced__$$__managedInstance.changed();
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_MANAGED_INSTANCE,
            Enhancer.DESCRIPTOR_MANAGED_INSTANCE);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Enhancer.INTERNAL_MANAGED_INSTANCE, Enhancer.METHOD_CHANGED,
            Enhancer.makeDescription(Void.TYPE));

    // return;
    mv.visitLabel(lReturn);
    mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {});
    mv.visitInsn(Opcodes.RETURN);

    mv.visitLabel(lOut);
    mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, lCheckInternal, lOut, 0);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createMethodGetManagedInstance(final String enhancedClassName, final String descEnhancer,
        final ClassWriter cw) {
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, Enhancer.METHOD_ENHANCED_GET_MANAGED_INSTANCE,
            Enhancer.makeDescription(ManagedInstance.class), null, null);
    mv.visitCode();

    final Label l0 = new Label();
    mv.visitLabel(l0);// ww  w . ja  va  2 s . co  m
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_MANAGED_INSTANCE,
            Enhancer.DESCRIPTOR_MANAGED_INSTANCE);
    mv.visitInsn(Opcodes.ARETURN);

    final Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, l0, l1, 0);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createMethodIsInitialized(final String enhancedClassName, final String descEnhancer,
        final ClassWriter cw) {
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, Enhancer.METHOD_ENHANCED_IS_INITIALIZED,
            Enhancer.makeDescription(Boolean.TYPE), null, null);
    mv.visitCode();

    final Label l0 = new Label();
    mv.visitLabel(l0);/*from w w  w .  j a  v  a2  s .co m*/
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INITIALIZED,
            Enhancer.DESCRIPTOR_BOOLEAN);
    mv.visitInsn(Opcodes.IRETURN);

    final Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, l0, l1, 0);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createMethodSetInitialized(final String enhancedClassName, final String descEnhancer,
        final ClassWriter cw) {
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, Enhancer.METHOD_ENHANCED_SET_INITIALIZED,
            Enhancer.makeDescription(Void.TYPE), null, null);
    mv.visitCode();

    final Label l0 = new Label();
    mv.visitLabel(l0);// w w  w.  ja  v a2s .  c  o  m
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitInsn(Opcodes.ICONST_1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INITIALIZED,
            Enhancer.DESCRIPTOR_BOOLEAN);

    mv.visitInsn(Opcodes.RETURN);

    final Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, l0, l1, 0);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createMethodSetInternal(final String enhancedClassName, final String descEnhancer,
        final ClassWriter cw) {
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, Enhancer.METHOD_ENHANCED_SET_INTERNAL,
            Enhancer.makeDescription(Void.TYPE, Boolean.TYPE), null, null);
    mv.visitCode();

    final Label l0 = new Label();
    mv.visitLabel(l0);/*from  ww w.  jav  a 2s . c om*/
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ILOAD, 1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INTERNAL,
            Enhancer.DESCRIPTOR_BOOLEAN);

    mv.visitInsn(Opcodes.RETURN);

    final Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, l0, l1, 0);
    mv.visitLocalVariable("internal", Enhancer.DESCRIPTOR_BOOLEAN, null, l0, l1, 1);
    mv.visitMaxs(0, 0);
    mv.visitEnd();

    //      final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "__enhanced__$$__setInternalCall", "(Z)V", null, null);
    //      mv.visitCode();
    //      final Label l0 = new Label();
    //      mv.visitLabel(l0);
    //      mv.visitLineNumber(81, l0);
    //      mv.visitVarInsn(Opcodes.ALOAD, 0);
    //      mv.visitVarInsn(Opcodes.ILOAD, 1);
    //      mv.visitFieldInsn(Opcodes.PUTFIELD, descEnhancer, Enhancer.FIELD_ENHANCED_INTERNAL, Enhancer.DESCRIPTOR_BOOLEAN);
    //      final Label l1 = new Label();
    //      mv.visitLabel(l1);
    //      mv.visitLineNumber(82, l1);
    //      mv.visitInsn(Opcodes.RETURN);
    //      final Label l2 = new Label();
    //      mv.visitLabel(l2);
    //      mv.visitLocalVariable("this", descEnhancer, null, l0, l2, 0);
    //      mv.visitLocalVariable("internal", "Z", null, l0, l2, 1);
    //      mv.visitMaxs(2, 2);
    //      mv.visitEnd();
}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createMethodSetManagedInstance(final String enhancedClassName, final String descEnhancer,
        final ClassWriter cw) {
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, Enhancer.METHOD_ENHANCED_SET_MANAGED_INSTANCE,
            Enhancer.makeDescription(Void.TYPE, ManagedInstance.class), null, null);
    mv.visitCode();

    final Label l0 = new Label();
    mv.visitLabel(l0);//from www .  j a v  a 2  s.co  m
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_MANAGED_INSTANCE,
            Enhancer.DESCRIPTOR_MANAGED_INSTANCE);

    mv.visitInsn(Opcodes.RETURN);

    final Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, l0, l1, 0);
    mv.visitLocalVariable("instance", Enhancer.DESCRIPTOR_MANAGED_INSTANCE, null, l0, l1, 1);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createNoArgConstructor(final String enhancingClassName, final String enhancedClassName,
        final String descEnhancer, final ClassWriter cw) {
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, Enhancer.CONSTRUCTOR_INIT,
            Enhancer.makeDescription(Void.TYPE), null, null);
    mv.visitCode();

    final Label l0 = new Label();
    mv.visitLabel(l0);//from w ww  .ja  va  2s .c  o  m
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, enhancingClassName, Enhancer.CONSTRUCTOR_INIT,
            Enhancer.makeDescription(Void.TYPE));

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitInsn(Opcodes.ACONST_NULL);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_ID,
            Enhancer.DESCRIPTOR_OBJECT);

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitInsn(Opcodes.ACONST_NULL);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_TYPE,
            Enhancer.DESCRIPTOR_CLASS);

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitInsn(Opcodes.ACONST_NULL);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION,
            Enhancer.DESCRIPTOR_SESSION);

    mv.visitInsn(Opcodes.RETURN);

    final Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, l0, l1, 0);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createOverrriddenMethod(final String enhancingClassName, final String enhancedClassName,
        final String descEnhancer, final ClassWriter cw, Method method) {
    final String methodDescription = Enhancer.makeDescription(method.getReturnType(),
            method.getParameterTypes());

    // TODO Exception types
    for (int i = 0; i < method.getExceptionTypes().length; i++) {
    }// w w  w.  j a  v a  2  s.  c  o  m

    final MethodVisitor mv = cw.visitMethod(method.getModifiers(), method.getName(), methodDescription, null,
            null);
    mv.visitCode();

    // this.__enhanced_$$__check();
    final Label lCheck = new Label();
    mv.visitLabel(lCheck);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, enhancedClassName, Enhancer.METHOD_ENHANCED_CHECK,
            Enhancer.makeDescription(Void.TYPE));

    mv.visitVarInsn(Opcodes.ALOAD, 0); // load this

    // infer the method parameters
    for (int i = 0, r = 1; i < method.getParameterTypes().length; i++, r++) {
        final Class<?> paramClass = method.getParameterTypes()[i];
        mv.visitVarInsn(Enhancer.getLoadType(paramClass), r); // load parameter

        if ((paramClass == Double.TYPE) || (paramClass == Long.TYPE)) {
            r++;
        }
    }

    // super.method(...);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, enhancingClassName, method.getName(), methodDescription);

    if (method.getReturnType() != Void.TYPE) {
        // non void return
        mv.visitInsn(Enhancer.getReturnType(method.getReturnType()));
    } else {
        // void return
        mv.visitInsn(Opcodes.RETURN);
    }

    final Label lOut = new Label();
    mv.visitLabel(lOut);
    Enhancer.registerLocals(descEnhancer, method, mv, lCheck, lOut);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

From source file:org.boretti.drools.integration.drools5.DroolsClassVisitor.java

License:Open Source License

@Override
public void visitEnd() {
    FieldVisitor fv = null;/*  w w  w  .  j  av a2 s  . com*/
    if (isNeedChangeForBoth()) {
        fv = super.visitField(Opcodes.ACC_PRIVATE, DROOLS_FIELD_NAME, Type.BOOLEAN_TYPE.getDescriptor(), null,
                null);
        if (fv != null) {
            AnnotationVisitor av = fv.visitAnnotation(Type.getType(Generated.class).getDescriptor(), true);
            AnnotationVisitor value = av.visitArray("value");
            value.visit("", "Generated by Drools5IntegrationHelper Maven plugin");
            value.visitEnd();
            av.visit("date", new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssz").format(current));
            av.visitEnd();
            fv.visitEnd();
        }
    }
    if (isNeedChangeForField()) {
        fv = super.visitField(Opcodes.ACC_PRIVATE, DROOLS_FIELD_RULE,
                Type.getType(RuleBase.class).getDescriptor(), null, null);
        if (fv != null) {
            AnnotationVisitor av = fv.visitAnnotation(Type.getType(Generated.class).getDescriptor(), true);
            AnnotationVisitor value = av.visitArray("value");
            value.visit("", "Generated by Drools5IntegrationHelper Maven plugin");
            value.visitEnd();
            av.visit("date", new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssz").format(current));
            av.visitEnd();
            fv.visitEnd();
        }
        MethodVisitor mv = super.visitMethod(Opcodes.ACC_PRIVATE, DROOLS_METHOD_RUN, "()V", null, null);
        AnnotationVisitor av = mv.visitAnnotation(Type.getType(Generated.class).getDescriptor(), true);
        AnnotationVisitor value = av.visitArray("value");
        value.visit("", "Generated by Drools5IntegrationHelper Maven plugin");
        value.visitEnd();
        av.visit("date", new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssz").format(current));
        av.visitEnd();
        mv.visitCode();
        Label start = new Label();
        mv.visitLabel(start);
        Label doIt = new Label();
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, Type.getObjectType(me).getInternalName(), DROOLS_FIELD_NAME,
                Type.BOOLEAN_TYPE.getDescriptor());
        mv.visitJumpInsn(Opcodes.IFEQ, doIt);
        mv.visitInsn(Opcodes.RETURN);
        mv.visitLabel(doIt);
        mv.visitFrame(Opcodes.F_SAME, 1, new Object[] { Type.getObjectType(me).getInternalName() }, 0,
                new Object[] {});
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, Type.getObjectType(me).getInternalName(), DROOLS_FIELD_RULE,
                Type.getType(RuleBase.class).getDescriptor());
        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getType(RuleBase.class).getInternalName(),
                "newStatelessSession", "()Lorg/drools/StatelessSession;");
        mv.visitInsn(Opcodes.DUP);
        mv.visitLdcInsn(FIELD_NAME_LOGGER);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getType(Object.class).getInternalName(), "getClass",
                "()Ljava/lang/Class;");
        mv.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getType(org.apache.log4j.Logger.class).getInternalName(),
                "getLogger", "(Ljava/lang/Class;)Lorg/apache/log4j/Logger;");
        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getType(StatelessSession.class).getInternalName(),
                "setGlobal", "(Ljava/lang/String;Ljava/lang/Object;)V");
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getType(StatelessSession.class).getInternalName(),
                "execute", "(Ljava/lang/Object;)V");
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitInsn(Opcodes.ICONST_1);
        mv.visitFieldInsn(Opcodes.PUTFIELD, Type.getObjectType(me).getInternalName(), DROOLS_FIELD_NAME,
                Type.BOOLEAN_TYPE.getDescriptor());
        mv.visitInsn(Opcodes.RETURN);
        Label end = new Label();
        mv.visitLabel(end);
        mv.visitLocalVariable("this", Type.getObjectType(me).getDescriptor(), null, start, end, 0);
        mv.visitMaxs(4, 1);
        mv.visitEnd();
    }
    super.visitEnd();
}