Example usage for org.objectweb.asm MethodVisitor visitLabel

Introduction

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

Prototype

public void visitLabel(final Label label) 

Source Link

Document

Visits a label.

Usage

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();//from w ww.j a v  a  2 s  .  c o m

    final Label l0 = new Label();
    mv.visitLabel(l0);
    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();/*from  w w  w.j  a  va2 s . c  om*/

    final Label l0 = new Label();
    mv.visitLabel(l0);
    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();/*from ww  w .ja va 2 s. c  o  m*/

    final Label l0 = new Label();
    mv.visitLabel(l0);
    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();//w w  w.  jav a  2  s. com

    final Label l0 = new Label();
    mv.visitLabel(l0);
    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();//from   w  w w.j  a v a 2  s .c o m

    final Label l0 = new Label();
    mv.visitLabel(l0);
    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();/* w  w  w  .j av a2  s.co m*/

    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.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.jav  a  2s  . co 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;//from   w w w  .  j  a v  a 2  s.c om
    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();
}

---

From source file:org.cacheonix.impl.transformer.CacheonixMethodGenerator.java

License:LGPL

/**
 * Generates a new method body for implementing DataSource with the old name to look into the Cacheonix cache first
 * before calling the original method/*  ww w  . j av a 2 s .c  o m*/
 *
 * @param cv                       ClassVisitor that this class delegates the calls to
 * @param className                Name of the class for which the method is being generated
 * @param access                   Method level access
 * @param desc                     Method descriptor
 * @param signature                Method signature
 * @param exceptions               Any exceptions that the method can throw
 * @param name                     original name of the method
 * @param newName                  the original method renamed to the format:orig$Cacheonix$methodName
 * @param metaData                 Annotation information for the method
 * @param cacheonixCacheFieldValue cacheName specified at the class level
 */
public static void generateCacheAddBody(final ClassVisitor cv, final String className, final int access,
        final String desc, final String signature, final String[] exceptions, final String name,
        final String newName, final MethodMetaData metaData, final String cacheonixCacheFieldValue) {

    final Type[] args = Type.getArgumentTypes(desc);
    final LocalStackUtil stackFrame = new LocalStackUtil(args);
    int expirationTime = CacheonixAnnotation.CACHEDATASOURCE_EXPIRATION_TIME_MILLIS_DEFAULT_VALUE;

    if (metaData.isAnnotationsPresent()) {
        final Object expTime = metaData.getAnnotationParameterValue(
                CacheonixAnnotation.CACHE_DATA_SOURCE_DESCRIPTOR,
                CacheonixAnnotation.CACHEDATASOURCE_EXPIRATION_TIME_MILLIS);
        if (expTime != null) {
            expirationTime = Integer.parseInt(expTime.toString());
        }
    }

    // Start
    final MethodVisitor mv = cv.visitMethod(access, name, desc, signature, exceptions);
    mv.visitCode();

    final Label l0 = new Label();
    final Label l1 = new Label();
    final Label l2 = new Label();

    mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");

    final String classCan = 'L' + className + ';';

    mv.visitLdcInsn(Type.getType(classCan));
    mv.visitMethodInsn(INVOKESTATIC, "org/cacheonix/impl/util/logging/Logger", "getLogger",
            "(Ljava/lang/Class;)Lorg/cacheonix/impl/util/logging/Logger;");

    mv.visitVarInsn(ASTORE, stackFrame.getLogLocalStackPos());

    mv.visitInsn(ACONST_NULL);
    mv.visitVarInsn(ASTORE, stackFrame.getValObjLocalStackPos()); // val

    generateKeyAggregationSequence(mv, args, stackFrame, cacheonixCacheFieldValue,
            metaData.getMethodParamAnnotationInfo());

    mv.visitInsn(ACONST_NULL);
    mv.visitVarInsn(ASTORE, stackFrame.getCacheRefLocalStackPos()); // cache

    //      printingToSysout(mv, "!!!!!  G E N E R A T E D   !!!!!! '" + name + "' is Called");

    mv.visitLabel(l0);
    // Config file from annotation on Class level
    mv.visitFieldInsn(GETSTATIC, className, CacheonixClassAdapter.CACHEONIX_CONFIG_FILE_FIELD,
            "Ljava/lang/String;");

    mv.visitMethodInsn(INVOKESTATIC, "cacheonix/cache/CacheManager", "getInstance",
            "(Ljava/lang/String;)Lcacheonix/cache/CacheManager;");
    mv.visitVarInsn(ASTORE, stackFrame.getCacheManagerLocalStackPos()); // inst

    // CATCH Block
    mv.visitLabel(l1);
    final Label l3 = new Label();
    mv.visitJumpInsn(GOTO, l3);
    mv.visitLabel(l2);
    mv.visitVarInsn(ASTORE, stackFrame.getExceptionLocalStackPos()); // exception
    mv.visitInsn(ACONST_NULL);
    mv.visitVarInsn(ASTORE, stackFrame.getCacheManagerLocalStackPos()); // inst
    mv.visitVarInsn(ALOAD, stackFrame.getLogLocalStackPos()); // log
    mv.visitLdcInsn(">>>>> Exception getting CacheManager ");
    mv.visitVarInsn(ALOAD, stackFrame.getExceptionLocalStackPos()); // exception
    mv.visitMethodInsn(INVOKEVIRTUAL, "org/cacheonix/impl/util/logging/Logger", "e",
            "(Ljava/lang/Object;Ljava/lang/Throwable;)V");
    // END OF TRY CACTCH

    mv.visitLabel(l3);

    //      printingToSysout(mv, "!!!!!  INST is NOT NULL   !!!!!! '" + name + "' is Called");

    mv.visitVarInsn(ALOAD, stackFrame.getCacheManagerLocalStackPos()); // inst
    final Label l4 = new Label();
    mv.visitJumpInsn(IFNULL, l4);
    mv.visitVarInsn(ALOAD, stackFrame.getCacheManagerLocalStackPos()); // inst

    mv.visitFieldInsn(GETSTATIC, className, CacheonixClassAdapter.CACHE_NAME_FIELD, "Ljava/lang/String;");
    mv.visitMethodInsn(INVOKEVIRTUAL, "cacheonix/cache/CacheManager", "getCache",
            "(Ljava/lang/String;)Lcacheonix/cache/Cache;");

    mv.visitVarInsn(ASTORE, stackFrame.getCacheRefLocalStackPos()); // cache
    mv.visitVarInsn(ALOAD, stackFrame.getCacheRefLocalStackPos()); // cache
    mv.visitVarInsn(ALOAD, stackFrame.getKeyGenLocalStackPos()); // key
    mv.visitMethodInsn(INVOKEINTERFACE, "cacheonix/cache/Cache", "get",
            "(Ljava/lang/Object;)Ljava/lang/Object;");
    mv.visitVarInsn(ASTORE, stackFrame.getValObjLocalStackPos()); // val

    mv.visitVarInsn(ALOAD, stackFrame.getValObjLocalStackPos()); // val
    mv.visitJumpInsn(IFNONNULL, l4);

    //      printingToSysout(mv, "!!!!!  VALUE IN CACHE IS NULL   !!!!!! '" + name + "' is Called");

    generateMethodParameterLoadingSequence(mv, args);

    mv.visitMethodInsn(INVOKESPECIAL, className, newName, desc);

    mv.visitVarInsn(ASTORE, stackFrame.getValObjLocalStackPos()); // val
    mv.visitVarInsn(ALOAD, stackFrame.getCacheRefLocalStackPos()); // cache
    mv.visitVarInsn(ALOAD, stackFrame.getKeyGenLocalStackPos()); // key
    mv.visitVarInsn(ALOAD, stackFrame.getValObjLocalStackPos()); // val

    if (expirationTime == -1) {
        mv.visitMethodInsn(INVOKEINTERFACE, "cacheonix/cache/Cache", "put",
                "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
    } else {
        mv.visitLdcInsn(Long.valueOf(expirationTime));
        mv.visitMethodInsn(INVOKEINTERFACE, "cacheonix/cache/Cache", "put",
                "(Ljava/lang/Object;Ljava/lang/Object;J)Ljava/lang/Object;");
    }

    mv.visitInsn(POP);

    mv.visitLabel(l4);

    mv.visitVarInsn(ALOAD, stackFrame.getValObjLocalStackPos()); // val

    // Return type
    final String retType = Type.getReturnType(desc).getInternalName();
    mv.visitTypeInsn(CHECKCAST, retType);
    mv.visitInsn(ARETURN);
    mv.visitMaxs(6, 10);
    mv.visitEnd();

}

---

From source file:org.cacheonix.impl.transformer.CacheonixMethodGenerator.java

License:LGPL

/**
 * Generates a new method body for implementing CacheInvalidate with the old name to look into the Cacheonix cache
 * first before calling the original method
 *
 * @param cv                       ClassVisitor that this class delegates the calls to
 * @param className                Name of the class for which the method is being generated
 * @param access                   Method level access
 * @param desc                     Method descriptor
 * @param signature                Method signature
 * @param exceptions               Any exceptions that the method can throw
 * @param name                     original name of the method
 * @param newName                  the original method renamed to the format:orig$Cacheonix$methodName
 * @param metaData                 Annotation information for the method
 * @param cacheonixCacheFieldValue cacheName specified at the class level
 *///from w  w  w  .j a v  a2 s  . c  o m
public static void generateCacheRemoveBody(final ClassVisitor cv, final String className, final int access,
        final String desc, final String signature, final String[] exceptions, final String name,
        final String newName, final MethodMetaData metaData, final String cacheonixCacheFieldValue) {

    final Type[] args = Type.getArgumentTypes(desc);
    final LocalStackUtil stackFrame = new LocalStackUtil(args);

    // Start
    final MethodVisitor mv = cv.visitMethod(access, name, desc, signature, exceptions);
    mv.visitCode();

    final Label l0 = new Label();
    final Label l1 = new Label();
    final Label l2 = new Label();

    mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");

    final Label l3 = new Label();
    final Label l4 = new Label();
    final Label l5 = new Label();

    mv.visitTryCatchBlock(l3, l4, l5, "java/lang/Exception");

    final String classCan = 'L' + className + ';';

    mv.visitLdcInsn(Type.getType(classCan));
    mv.visitMethodInsn(INVOKESTATIC, "org/cacheonix/impl/util/logging/Logger", "getLogger",
            "(Ljava/lang/Class;)Lorg/cacheonix/impl/util/logging/Logger;");

    mv.visitVarInsn(ASTORE, stackFrame.getCILogLocalStackPos()); // Log
    mv.visitInsn(ACONST_NULL);
    mv.visitVarInsn(ASTORE, stackFrame.getCICacheManagerLocalStackPos()); // inst

    // try
    mv.visitLabel(l0);

    mv.visitFieldInsn(GETSTATIC, className, CacheonixClassAdapter.CACHEONIX_CONFIG_FILE_FIELD,
            "Ljava/lang/String;");
    mv.visitMethodInsn(INVOKESTATIC, "cacheonix/cache/CacheManager", "getInstance",
            "(Ljava/lang/String;)Lcacheonix/cache/CacheManager;");

    mv.visitVarInsn(ASTORE, stackFrame.getCICacheManagerLocalStackPos()); // inst
    // catch in
    mv.visitLabel(l1);
    mv.visitJumpInsn(GOTO, l3);
    // catch out
    mv.visitLabel(l2);
    mv.visitVarInsn(ASTORE, stackFrame.getCIExceptionLocalStackPos()); // Exception1
    mv.visitInsn(ACONST_NULL);
    mv.visitVarInsn(ASTORE, stackFrame.getCIExceptionLocalStackPos()); // inst <- null
    mv.visitVarInsn(ALOAD, stackFrame.getCILogLocalStackPos()); // Log
    mv.visitLdcInsn(">>>>> Exception getting CacheManager ");
    mv.visitVarInsn(ALOAD, stackFrame.getCIExceptionLocalStackPos()); // Exception
    mv.visitMethodInsn(INVOKEVIRTUAL, "org/cacheonix/impl/util/logging/Logger", "e",
            "(Ljava/lang/Object;Ljava/lang/Throwable;)V");
    // END OF TRY CACTCH

    // try
    mv.visitLabel(l3);

    //        printingToSysout(mv, "!!!!!  INVALIDATE | INST is NOT NULL   !!!!!! '" + name + "' is Called");

    mv.visitVarInsn(ALOAD, stackFrame.getCICacheManagerLocalStackPos()); // inst
    final Label l6 = new Label();
    mv.visitJumpInsn(IFNULL, l6);

    // Key Loop
    generateKeyAggregationSequence(mv, args, stackFrame, cacheonixCacheFieldValue,
            metaData.getMethodParamAnnotationInfo());

    mv.visitVarInsn(ALOAD, stackFrame.getCICacheManagerLocalStackPos()); // inst

    mv.visitFieldInsn(GETSTATIC, className, CacheonixClassAdapter.CACHE_NAME_FIELD, "Ljava/lang/String;");

    mv.visitMethodInsn(INVOKEVIRTUAL, "cacheonix/cache/CacheManager", "getCache",
            "(Ljava/lang/String;)Lcacheonix/cache/Cache;");

    mv.visitVarInsn(ASTORE, stackFrame.getCICacheRefLocalStackPos()); // cache
    mv.visitVarInsn(ALOAD, stackFrame.getCICacheRefLocalStackPos()); // cache
    mv.visitJumpInsn(IFNULL, l6);
    mv.visitVarInsn(ALOAD, stackFrame.getCICacheRefLocalStackPos()); // cache
    mv.visitVarInsn(ALOAD, stackFrame.getCIKeyGenLocalStackPos()); // Key
    mv.visitMethodInsn(INVOKEINTERFACE, "cacheonix/cache/Cache", "remove",
            "(Ljava/lang/Object;)Ljava/lang/Object;");
    mv.visitInsn(POP); // Ignore result

    mv.visitLabel(l4);
    mv.visitJumpInsn(GOTO, l6);
    mv.visitLabel(l5);

    mv.visitVarInsn(ASTORE, stackFrame.getCIEExceptionLocalStackPos()); // EException
    mv.visitVarInsn(ALOAD, stackFrame.getCILogLocalStackPos()); // Log
    mv.visitLdcInsn(">>>>> Exception while removing key ");
    mv.visitVarInsn(ALOAD, stackFrame.getCIEExceptionLocalStackPos()); // EException
    mv.visitMethodInsn(INVOKEVIRTUAL, "org/cacheonix/impl/util/logging/Logger", "e",
            "(Ljava/lang/Object;Ljava/lang/Throwable;)V");
    mv.visitLabel(l6);

    //
    generateMethodParameterLoadingSequence(mv, args);

    mv.visitMethodInsn(INVOKESPECIAL, className, newName, desc);

    //
    final int op = ByteInstruction.getReturnCode(desc);
    mv.visitInsn(op);
    mv.visitMaxs(6, 9);
    mv.visitEnd();

}

---

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