Examples with ClassWriter org.mvel2.asm.ClassWriter used on opensource projects

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Example 6 with ClassWriter

use of org.mvel2.asm.ClassWriter in project drools by kiegroup.

the class TraitCoreWrapperClassBuilderImpl method buildClass.

public byte[] buildClass(ClassDefinition core, ClassLoader classLoader) throws IOException, SecurityException, IllegalArgumentException, ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException, InstantiationException, NoSuchFieldException {
    Class coreKlazz = core.getDefinedClass();
    String coreName = coreKlazz.getName();
    String wrapperName = coreName + "Wrapper";
    FieldVisitor fv;
    MethodVisitor mv;
    ClassWriter cw = createClassWriter(classLoader, ACC_PUBLIC + ACC_SUPER, BuildUtils.getInternalType(wrapperName), BuildUtils.getTypeDescriptor(coreName) + "Lorg/drools/factmodel/traits/CoreWrapper<" + BuildUtils.getTypeDescriptor(coreName) + ">;", BuildUtils.getInternalType(coreName), new String[] { Type.getInternalName(CoreWrapper.class), Type.getInternalName(Externalizable.class) });
    {
        AnnotationVisitor av0 = cw.visitAnnotation(Type.getDescriptor(Traitable.class), true);
        av0.visit("logical", core.isFullTraiting());
    }
    {
        fv = cw.visitField(ACC_PRIVATE, "core", BuildUtils.getTypeDescriptor(coreName), null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE, TraitableBean.MAP_FIELD_NAME, Type.getDescriptor(Map.class), "Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;", null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE, TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor(Map.class), "Ljava/util/Map<Ljava/lang/String;Lorg/drools/factmodel/traits/Thing;>;", null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE, TraitableBean.FIELDTMS_FIELD_NAME, Type.getDescriptor(TraitFieldTMS.class), null, null);
        fv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        try {
            coreKlazz.getConstructor();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKESPECIAL, BuildUtils.getInternalType(coreName), "<init>", "()V");
        } catch (NoSuchMethodException nsme) {
            Constructor con = coreKlazz.getConstructors()[0];
            Class[] params = con.getParameterTypes();
            mv.visitVarInsn(ALOAD, 0);
            for (Class param : params) {
                mv.visitInsn(BuildUtils.zero(param.getName()));
            }
            mv.visitMethodInsn(INVOKESPECIAL, BuildUtils.getInternalType(coreName), "<init>", Type.getConstructorDescriptor(con));
        }
        // mv.visitVarInsn( ALOAD, 0 );
        // mv.visitTypeInsn( NEW, Type.getInternalName( HashMap.class ) );
        // mv.visitInsn( DUP );
        // mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( HashMap.class ), "<init>", "()V" );
        // mv.visitFieldInsn( PUTFIELD,
        // BuildUtils.getInternalType( wrapperName ),
        // TraitableBean.MAP_FIELD_NAME,
        // Type.getDescriptor( Map.class ) );
        // mv.visitVarInsn( ALOAD, 0 );
        // mv.visitTypeInsn( NEW, Type.getInternalName( VetoableTypedMap.class ) );
        // mv.visitInsn( DUP );
        // mv.visitTypeInsn( NEW, Type.getInternalName( HashMap.class ) );
        // mv.visitInsn( DUP );
        // mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( HashMap.class ), "<init>", "()V" );
        // mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( VetoableTypedMap.class ), "<init>", "(" + Type.getDescriptor( Map.class ) + ")V" );
        // mv.visitFieldInsn( PUTFIELD,
        // BuildUtils.getInternalType( wrapperName ),
        // TraitableBean.TRAITSET_FIELD_NAME,
        // Type.getDescriptor( Map.class ) );
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }
    if (coreKlazz == null || needsMethod(coreKlazz, "getCore")) {
        {
            mv = cw.visitMethod(ACC_PUBLIC, "getCore", "()" + Type.getDescriptor(Object.class), "()" + BuildUtils.getTypeDescriptor(coreName), null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, BuildUtils.getInternalType(wrapperName), "core", BuildUtils.getTypeDescriptor(coreName));
            mv.visitInsn(ARETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }
    }
    if (coreKlazz == null || needsMethod(coreKlazz, "_getDynamicProperties")) {
        {
            mv = cw.visitMethod(ACC_PUBLIC, "_getDynamicProperties", "()" + Type.getDescriptor(Map.class), "()Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;", null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.MAP_FIELD_NAME, Type.getDescriptor(Map.class));
            mv.visitInsn(ARETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
            mv = cw.visitMethod(ACC_PUBLIC, "_setDynamicProperties", "(" + Type.getDescriptor(Map.class) + ")V", "(Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;)V", null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitVarInsn(ALOAD, 1);
            mv.visitFieldInsn(PUTFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.MAP_FIELD_NAME, Type.getDescriptor(Map.class));
            mv.visitInsn(RETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }
    }
    if (coreKlazz == null || needsMethod(coreKlazz, "_getTraitMap")) {
        {
            mv = cw.visitMethod(ACC_PUBLIC, "_getTraitMap", "()" + Type.getDescriptor(Map.class), "()Ljava/util/Map<Ljava/lang/String;Lorg/drools/factmodel/traits/Thing;>;", null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor(Map.class));
            Label l0 = new Label();
            mv.visitJumpInsn(IFNULL, l0);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor(Map.class));
            mv.visitFieldInsn(GETSTATIC, Type.getInternalName(Collections.class), "EMPTY_MAP", Type.getDescriptor(Map.class));
            Label l1 = new Label();
            mv.visitJumpInsn(IF_ACMPNE, l1);
            mv.visitLabel(l0);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitTypeInsn(NEW, Type.getInternalName(TraitTypeMap.class));
            mv.visitInsn(DUP);
            mv.visitTypeInsn(NEW, Type.getInternalName(HashMap.class));
            mv.visitInsn(DUP);
            mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(HashMap.class), "<init>", "()V");
            mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(TraitTypeMap.class), "<init>", "(" + Type.getDescriptor(Map.class) + ")V");
            mv.visitFieldInsn(PUTFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor(Map.class));
            mv.visitLabel(l1);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor(Map.class));
            mv.visitInsn(ARETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }
    }
    if (coreKlazz == null || needsMethod(coreKlazz, "setTraitMap", Map.class)) {
        {
            mv = cw.visitMethod(ACC_PUBLIC, "setTraitMap", "(Ljava/util/Map;)V", null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitTypeInsn(NEW, Type.getInternalName(TraitTypeMap.class));
            mv.visitInsn(DUP);
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(TraitTypeMap.class), "<init>", "(" + Type.getDescriptor(Map.class) + ")V");
            mv.visitFieldInsn(PUTFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor(Map.class));
            mv.visitInsn(RETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }
    }
    if (coreKlazz == null || needsMethod(coreKlazz, "addTrait", String.class, Thing.class)) {
        {
            mv = cw.visitMethod(ACC_PUBLIC, "addTrait", "(" + Type.getDescriptor(String.class) + Type.getDescriptor(Thing.class) + ")V", "(" + Type.getDescriptor(String.class) + Type.getDescriptor(Thing.class) + ")V", null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKEVIRTUAL, BuildUtils.getInternalType(wrapperName), "_getTraitMap", "()" + Type.getDescriptor(Map.class));
            mv.visitTypeInsn(CHECKCAST, Type.getInternalName(TraitTypeMap.class));
            mv.visitVarInsn(ALOAD, 1);
            mv.visitVarInsn(ALOAD, 2);
            mv.visitMethodInsn(INVOKEVIRTUAL, Type.getInternalName(TraitTypeMap.class), "putSafe", "(" + Type.getDescriptor(String.class) + Type.getDescriptor(Thing.class) + ")" + Type.getDescriptor(Thing.class));
            mv.visitInsn(POP);
            mv.visitInsn(RETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }
    }
    if (coreKlazz == null || needsMethod(coreKlazz, "getTrait", String.class)) {
        {
            mv = cw.visitMethod(ACC_PUBLIC, "getTrait", "(" + Type.getDescriptor(String.class) + ")" + Type.getDescriptor(Thing.class), "(" + Type.getDescriptor(String.class) + ")" + Type.getDescriptor(Thing.class), null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKEVIRTUAL, BuildUtils.getInternalType(wrapperName), "_getTraitMap", "()" + Type.getDescriptor(Map.class));
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Map.class), "get", "(" + Type.getDescriptor(Object.class) + ")" + Type.getDescriptor(Object.class));
            mv.visitTypeInsn(CHECKCAST, Type.getInternalName(Thing.class));
            mv.visitInsn(ARETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }
    }
    if (coreKlazz == null || needsMethod(coreKlazz, "hasTraits")) {
        {
            mv = cw.visitMethod(ACC_PUBLIC, "hasTraits", Type.getMethodDescriptor(Type.getType(boolean.class), new Type[] {}), null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKEVIRTUAL, BuildUtils.getInternalType(wrapperName), "_getTraitMap", "()" + Type.getDescriptor(Map.class));
            Label l5 = new Label();
            mv.visitJumpInsn(IFNULL, l5);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKEVIRTUAL, BuildUtils.getInternalType(wrapperName), "_getTraitMap", "()" + Type.getDescriptor(Map.class));
            mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Map.class), "isEmpty", Type.getMethodDescriptor(Type.BOOLEAN_TYPE, new Type[] {}));
            mv.visitJumpInsn(IFNE, l5);
            mv.visitInsn(ICONST_1);
            Label l4 = new Label();
            mv.visitJumpInsn(GOTO, l4);
            mv.visitLabel(l5);
            mv.visitInsn(ICONST_0);
            mv.visitLabel(l4);
            mv.visitInsn(IRETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }
    }
    if (coreKlazz == null || needsMethod(coreKlazz, "hasTrait", String.class)) {
        {
            mv = cw.visitMethod(ACC_PUBLIC, "hasTrait", "(" + Type.getDescriptor(String.class) + ")Z", null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKEVIRTUAL, BuildUtils.getInternalType(wrapperName), "_getTraitMap", "()" + Type.getDescriptor(Map.class));
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Map.class), "containsKey", "(" + Type.getDescriptor(Object.class) + ")Z");
            mv.visitInsn(IRETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }
    }
    if (coreKlazz == null || needsMethod(coreKlazz, "removeTrait", String.class)) {
        {
            mv = cw.visitMethod(ACC_PUBLIC, "removeTrait", Type.getMethodDescriptor(Type.getType(Collection.class), new Type[] { Type.getType(String.class) }), Type.getMethodDescriptor(Type.getType(Collection.class), new Type[] { Type.getType(String.class) }), null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKEVIRTUAL, BuildUtils.getInternalType(wrapperName), "_getTraitMap", Type.getMethodDescriptor(Type.getType(Map.class), new Type[] {}));
            mv.visitTypeInsn(CHECKCAST, Type.getInternalName(TraitTypeMap.class));
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEVIRTUAL, Type.getInternalName(TraitTypeMap.class), "removeCascade", Type.getMethodDescriptor(Type.getType(Collection.class), new Type[] { Type.getType(String.class) }));
            mv.visitInsn(ARETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
            mv = cw.visitMethod(ACC_PUBLIC, "removeTrait", Type.getMethodDescriptor(Type.getType(Collection.class), new Type[] { Type.getType(BitSet.class) }), Type.getMethodDescriptor(Type.getType(Collection.class), new Type[] { Type.getType(BitSet.class) }), null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKEVIRTUAL, BuildUtils.getInternalType(wrapperName), "_getTraitMap", Type.getMethodDescriptor(Type.getType(Map.class), new Type[] {}));
            mv.visitTypeInsn(CHECKCAST, Type.getInternalName(TraitTypeMap.class));
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEVIRTUAL, Type.getInternalName(TraitTypeMap.class), "removeCascade", Type.getMethodDescriptor(Type.getType(Collection.class), new Type[] { Type.getType(BitSet.class) }));
            mv.visitInsn(ARETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }
    }
    if (coreKlazz == null || needsMethod(coreKlazz, "getTraits")) {
        {
            mv = cw.visitMethod(ACC_PUBLIC, "getTraits", "()" + Type.getDescriptor(Collection.class), "()Ljava/util/Collection<Ljava/lang/String;>;", null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKEVIRTUAL, BuildUtils.getInternalType(wrapperName), "_getTraitMap", "()" + Type.getDescriptor(Map.class));
            mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Map.class), "keySet", "()" + Type.getDescriptor(Set.class));
            mv.visitInsn(ARETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }
    }
    if (coreKlazz == null || needsMethod(coreKlazz, "_setBottomTypeCode")) {
        {
            mv = cw.visitMethod(ACC_PUBLIC, "_setBottomTypeCode", "(" + Type.getDescriptor(BitSet.class) + ")V", null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor(Map.class));
            mv.visitTypeInsn(CHECKCAST, Type.getInternalName(TraitTypeMap.class));
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEVIRTUAL, Type.getInternalName(TraitTypeMap.class), "setBottomCode", "(" + Type.getDescriptor(BitSet.class) + ")V");
            mv.visitInsn(RETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }
    }
    if (coreKlazz == null || needsMethod(coreKlazz, "getCurrentTypeCode")) {
        {
            mv = cw.visitMethod(ACC_PUBLIC, "getCurrentTypeCode", "()" + Type.getDescriptor(BitSet.class), null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor(Map.class));
            Label l3 = new Label();
            mv.visitJumpInsn(IFNONNULL, l3);
            mv.visitInsn(ACONST_NULL);
            mv.visitInsn(ARETURN);
            mv.visitLabel(l3);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor(Map.class));
            mv.visitTypeInsn(CHECKCAST, Type.getInternalName(TraitTypeMap.class));
            mv.visitMethodInsn(INVOKEVIRTUAL, Type.getInternalName(TraitTypeMap.class), "getCurrentTypeCode", "()" + Type.getDescriptor(BitSet.class));
            mv.visitInsn(ARETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }
    }
    if (coreKlazz == null || needsMethod(coreKlazz, "getMostSpecificTraits")) {
        {
            mv = cw.visitMethod(ACC_PUBLIC, "getMostSpecificTraits", "()" + Type.getDescriptor(Collection.class), "()Ljava/util/Collection<Lorg/drools/factmodel/traits/Thing;>;", null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor(Map.class));
            mv.visitTypeInsn(CHECKCAST, Type.getInternalName(TraitTypeMap.class));
            mv.visitMethodInsn(INVOKEVIRTUAL, Type.getInternalName(TraitTypeMap.class), "getMostSpecificTraits", "()" + Type.getDescriptor(Collection.class));
            mv.visitInsn(ARETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }
    }
    if (coreKlazz == null || needsMethod(coreKlazz, "_getFieldTMS", TraitFieldTMS.class)) {
        {
            mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "_getFieldTMS", Type.getMethodDescriptor(Type.getType(TraitFieldTMS.class), new Type[] {}), null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.FIELDTMS_FIELD_NAME, Type.getDescriptor(TraitFieldTMS.class));
            mv.visitInsn(ARETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }
    }
    if (coreKlazz == null || needsMethod(coreKlazz, "_setFieldTMS", TraitFieldTMS.class)) {
        {
            mv = cw.visitMethod(ACC_PUBLIC, "_setFieldTMS", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(TraitFieldTMS.class) }), null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitVarInsn(ALOAD, 1);
            mv.visitFieldInsn(PUTFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.FIELDTMS_FIELD_NAME, Type.getDescriptor(TraitFieldTMS.class));
            mv.visitInsn(RETURN);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "writeExternal", "(" + Type.getDescriptor(ObjectOutput.class) + ")V", null, new String[] { Type.getInternalName(IOException.class) });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEVIRTUAL, BuildUtils.getInternalType(wrapperName), "getCore", "()" + Type.getDescriptor(Object.class));
        mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(ObjectOutput.class), "writeObject", "(" + Type.getDescriptor(Object.class) + ")V");
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.MAP_FIELD_NAME, Type.getDescriptor(Map.class));
        mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(ObjectOutput.class), "writeObject", "(" + Type.getDescriptor(Object.class) + ")V");
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor(Map.class));
        mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(ObjectOutput.class), "writeObject", "(" + Type.getDescriptor(Object.class) + ")V");
        if (core.isFullTraiting()) {
            mv.visitVarInsn(ALOAD, 1);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.FIELDTMS_FIELD_NAME, Type.getDescriptor(Map.class));
            mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(ObjectOutput.class), "writeObject", "(" + Type.getDescriptor(Object.class) + ")V");
        }
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "readExternal", "(" + Type.getDescriptor(ObjectInput.class) + ")V", null, new String[] { Type.getInternalName(IOException.class), Type.getInternalName(ClassNotFoundException.class) });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(ObjectInput.class), "readObject", "()" + Type.getDescriptor(Object.class));
        mv.visitTypeInsn(CHECKCAST, BuildUtils.getInternalType(coreName));
        mv.visitFieldInsn(PUTFIELD, BuildUtils.getInternalType(wrapperName), "core", BuildUtils.getTypeDescriptor(coreName));
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(ObjectInput.class), "readObject", "()" + Type.getDescriptor(Object.class));
        mv.visitTypeInsn(CHECKCAST, Type.getInternalName(Map.class));
        mv.visitFieldInsn(PUTFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.MAP_FIELD_NAME, Type.getDescriptor(Map.class));
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(ObjectInput.class), "readObject", "()" + Type.getDescriptor(Object.class));
        mv.visitTypeInsn(CHECKCAST, Type.getInternalName(Map.class));
        mv.visitFieldInsn(PUTFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor(Map.class));
        if (core.isFullTraiting()) {
            mv.visitVarInsn(ALOAD, 0);
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(ObjectInput.class), "readObject", "()" + Type.getDescriptor(Object.class));
            mv.visitTypeInsn(CHECKCAST, Type.getInternalName(TraitFieldTMS.class));
            mv.visitFieldInsn(PUTFIELD, BuildUtils.getInternalType(wrapperName), TraitableBean.FIELDTMS_FIELD_NAME, Type.getDescriptor(TraitFieldTMS.class));
        }
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "init", "(" + BuildUtils.getTypeDescriptor(coreName) + ")V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitFieldInsn(PUTFIELD, BuildUtils.getInternalType(wrapperName), "core", BuildUtils.getTypeDescriptor(coreName));
        initializeDynamicTypeStructures(mv, wrapperName, core);
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }
    Method[] ms = coreKlazz.getMethods();
    for (Method method : ms) {
        if (Modifier.isFinal(method.getModifiers())) {
            continue;
        }
        String signature = TraitFactory.buildSignature(method);
        {
            mv = cw.visitMethod(ACC_PUBLIC, method.getName(), signature, null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, BuildUtils.getInternalType(wrapperName), "core", BuildUtils.getTypeDescriptor(coreName));
            Label l0 = new Label();
            mv.visitJumpInsn(IFNONNULL, l0);
            if (method.getReturnType() == void.class) {
                mv.visitInsn(RETURN);
            } else {
                mv.visitInsn(BuildUtils.zero(method.getReturnType().getName()));
                mv.visitInsn(BuildUtils.returnType(method.getReturnType().getName()));
            }
            mv.visitLabel(l0);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, BuildUtils.getInternalType(wrapperName), "core", BuildUtils.getTypeDescriptor(coreName));
            int j = 1;
            for (Class arg : method.getParameterTypes()) {
                mv.visitVarInsn(BuildUtils.varType(arg.getName()), j++);
            }
            mv.visitMethodInsn(INVOKEVIRTUAL, BuildUtils.getInternalType(coreName), method.getName(), signature);
            mv.visitInsn(BuildUtils.returnType(method.getReturnType().getName()));
            int stack = TraitFactory.getStackSize(method);
            mv.visitMaxs(0, 0);
            mv.visitEnd();
        }
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_BRIDGE + ACC_SYNTHETIC, "init", "(" + Type.getDescriptor(Object.class) + ")V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(CHECKCAST, BuildUtils.getInternalType(coreName));
        mv.visitMethodInsn(INVOKEVIRTUAL, BuildUtils.getInternalType(wrapperName), "init", "(" + BuildUtils.getTypeDescriptor(coreName) + ")V");
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }
    cw.visitEnd();
    return cw.toByteArray();
}
Also used : Set(java.util.Set) BitSet(java.util.BitSet) Label(org.mvel2.asm.Label) FieldVisitor(org.mvel2.asm.FieldVisitor) MethodVisitor(org.mvel2.asm.MethodVisitor) ObjectOutput(java.io.ObjectOutput) Constructor(java.lang.reflect.Constructor) BitSet(java.util.BitSet) IOException(java.io.IOException) Method(java.lang.reflect.Method) ClassWriter(org.mvel2.asm.ClassWriter) ClassGenerator.createClassWriter(org.drools.core.rule.builder.dialect.asm.ClassGenerator.createClassWriter) Type(org.mvel2.asm.Type) AnnotationVisitor(org.mvel2.asm.AnnotationVisitor) Collection(java.util.Collection) Externalizable(java.io.Externalizable) ObjectInput(java.io.ObjectInput) HashMap(java.util.HashMap) Map(java.util.Map)

Example 7 with ClassWriter

use of org.mvel2.asm.ClassWriter in project drools by kiegroup.

the class TraitMapPropertyWrapperClassBuilderImpl method buildRemove.

protected void buildRemove(ClassWriter cw, String wrapperName, ClassDefinition trait, ClassDefinition core, BitSet mask) {
    String internalWrapper = BuildUtils.getInternalType(wrapperName);
    MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "remove", "(" + Type.getDescriptor(Object.class) + ")" + Type.getDescriptor(Object.class), null, null);
    mv.visitCode();
    for (FieldDefinition field : core.getFieldsDefinitions()) {
        invokeRemove(mv, wrapperName, core, field.getName(), field);
    }
    int j = 0;
    for (FieldDefinition field : trait.getFieldsDefinitions()) {
        boolean isSoftField = TraitRegistry.isSoftField(field, j++, mask);
        if (isSoftField) {
            mv.visitLdcInsn(field.getName());
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEVIRTUAL, Type.getInternalName(String.class), "equals", "(" + Type.getDescriptor(Object.class) + ")Z", false);
            Label l2 = new Label();
            mv.visitJumpInsn(IFEQ, l2);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, internalWrapper, "map", Type.getDescriptor(Map.class));
            mv.visitLdcInsn(field.getName());
            mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Map.class), "get", "(" + Type.getDescriptor(Object.class) + ")" + Type.getDescriptor(Object.class), true);
            mv.visitVarInsn(ASTORE, 2);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, internalWrapper, "map", Type.getDescriptor(Map.class));
            mv.visitLdcInsn(field.getName());
            mv.visitInsn(BuildUtils.zero(field.getTypeName()));
            if (BuildUtils.isPrimitive(field.getTypeName())) {
                TraitFactory.valueOf(mv, field.getTypeName());
            }
            mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Map.class), "put", "(" + Type.getDescriptor(Object.class) + Type.getDescriptor(Object.class) + ")" + Type.getDescriptor(Object.class), true);
            mv.visitInsn(POP);
            mv.visitVarInsn(ALOAD, 2);
            mv.visitInsn(ARETURN);
            mv.visitLabel(l2);
        }
    }
    mv.visitVarInsn(ALOAD, 0);
    mv.visitFieldInsn(GETFIELD, internalWrapper, "map", Type.getDescriptor(Map.class));
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Map.class), "remove", "(" + Type.getDescriptor(Object.class) + ")" + Type.getDescriptor(Object.class), true);
    mv.visitVarInsn(ASTORE, 2);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitInsn(ARETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}
Also used : FieldDefinition(org.drools.core.factmodel.FieldDefinition) Label(org.mvel2.asm.Label) Map(java.util.Map) MethodVisitor(org.mvel2.asm.MethodVisitor)

Example 8 with ClassWriter

use of org.mvel2.asm.ClassWriter in project drools by kiegroup.

the class TraitMapPropertyWrapperClassBuilderImpl method buildContainsKey.

protected void buildContainsKey(ClassWriter cw, String name, ClassDefinition core) {
    String internalWrapper = BuildUtils.getInternalType(name);
    MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "containsKey", "(" + Type.getDescriptor(Object.class) + ")Z", null, null);
    mv.visitCode();
    for (FieldDefinition field : core.getFieldsDefinitions()) {
        invokeContainsKey(mv, field.getName());
    }
    mv.visitVarInsn(ALOAD, 0);
    mv.visitFieldInsn(GETFIELD, internalWrapper, "map", Type.getDescriptor(Map.class));
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Map.class), "containsKey", "(" + Type.getDescriptor(Object.class) + ")Z", true);
    mv.visitInsn(IRETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}
Also used : FieldDefinition(org.drools.core.factmodel.FieldDefinition) Map(java.util.Map) MethodVisitor(org.mvel2.asm.MethodVisitor)

Example 9 with ClassWriter

use of org.mvel2.asm.ClassWriter in project drools by kiegroup.

the class TraitMapPropertyWrapperClassBuilderImpl method buildClass.

public byte[] buildClass(ClassDefinition core, ClassLoader classLoader) throws IOException, SecurityException, IllegalArgumentException, ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException, InstantiationException, NoSuchFieldException {
    FieldVisitor fv;
    MethodVisitor mv;
    // get the method bitmask
    BitSet mask = traitRegistry.getFieldMask(trait.getName(), core.getDefinedClass().getName());
    String name = TraitFactory.getPropertyWrapperName(trait, core);
    String internalWrapper = BuildUtils.getInternalType(name);
    String descrCore = Type.getDescriptor(core.getDefinedClass());
    String internalCore = Type.getInternalName(core.getDefinedClass());
    ClassWriter cw = createClassWriter(classLoader, ACC_PUBLIC + ACC_SUPER, internalWrapper, Type.getDescriptor(Object.class) + Type.getDescriptor(Map.class) + Type.getDescriptor(MapWrapper.class), // "Ljava/lang/Object;Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;Lorg/drools/factmodel/traits/MapWrapper;",
    Type.getInternalName(Object.class), new String[] { Type.getInternalName(Map.class), Type.getInternalName(MapWrapper.class), Type.getInternalName(Serializable.class) });
    cw.visitInnerClass(Type.getInternalName(Map.Entry.class), Type.getInternalName(Map.class), "Entry", ACC_PUBLIC + ACC_STATIC + ACC_ABSTRACT + ACC_INTERFACE);
    {
        fv = cw.visitField(0, "object", descrCore, null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(0, "map", Type.getDescriptor(Map.class), "Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;", null);
        fv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(" + descrCore + Type.getDescriptor(Map.class) + ")V", "(" + descrCore + "Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;)V", null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(Object.class), "<init>", "()V", false);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitFieldInsn(PUTFIELD, internalWrapper, "object", descrCore);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitFieldInsn(PUTFIELD, internalWrapper, "map", Type.getDescriptor(Map.class));
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitMethodInsn(INVOKEVIRTUAL, internalCore, "_setDynamicProperties", "(" + Type.getDescriptor(Map.class) + ")V", false);
        initSoftFields(mv, trait, core, internalWrapper, mask, 2);
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }
    buildSize(cw, name, core);
    buildIsEmpty(cw, name, core);
    buildGet(cw, name, core);
    buildPut(cw, name, core);
    buildClear(cw, name, trait, core, mask);
    buildRemove(cw, name, trait, core, mask);
    buildContainsKey(cw, name, core);
    buildContainsValue(cw, name, trait, core);
    buildKeyset(cw, name, core);
    buildValues(cw, name, core);
    buildEntryset(cw, name, core);
    buildCommonMethods(cw, name);
    cw.visitEnd();
    return cw.toByteArray();
}
Also used : Serializable(java.io.Serializable) BitSet(java.util.BitSet) FieldVisitor(org.mvel2.asm.FieldVisitor) Map(java.util.Map) ClassGenerator.createClassWriter(org.drools.core.rule.builder.dialect.asm.ClassGenerator.createClassWriter) ClassWriter(org.mvel2.asm.ClassWriter) MethodVisitor(org.mvel2.asm.MethodVisitor)

Example 10 with ClassWriter

use of org.mvel2.asm.ClassWriter in project drools by kiegroup.

the class TraitMapPropertyWrapperClassBuilderImpl method buildClear.

protected void buildClear(ClassWriter cw, String wrapperName, ClassDefinition trait, ClassDefinition core, BitSet mask) {
    String internalWrapper = BuildUtils.getInternalType(wrapperName);
    MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "clear", "()V", null, null);
    mv.visitCode();
    for (FieldDefinition field : core.getFieldsDefinitions()) {
        if (field.isKey())
            continue;
        TraitFactory.invokeInjector(mv, wrapperName, core, field, true, 1);
    }
    mv.visitVarInsn(ALOAD, 0);
    mv.visitFieldInsn(GETFIELD, internalWrapper, "map", Type.getDescriptor(Map.class));
    mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Map.class), "clear", "()V", true);
    initSoftFields(mv, trait, core, internalWrapper, mask, 0);
    mv.visitInsn(RETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}
Also used : FieldDefinition(org.drools.core.factmodel.FieldDefinition) Map(java.util.Map) MethodVisitor(org.mvel2.asm.MethodVisitor)

Aggregations

MethodVisitor (org.mvel2.asm.MethodVisitor)58 ClassWriter (org.mvel2.asm.ClassWriter)32 FieldDefinition (org.drools.core.factmodel.FieldDefinition)23 FieldVisitor (org.mvel2.asm.FieldVisitor)23 Map (java.util.Map)20 Label (org.mvel2.asm.Label)20 BitSet (java.util.BitSet)12 ClassGenerator.createClassWriter (org.drools.core.rule.builder.dialect.asm.ClassGenerator.createClassWriter)12 ClassGenerator.createClassWriter (org.drools.mvel.asm.ClassGenerator.createClassWriter)12 Serializable (java.io.Serializable)8 Type (org.mvel2.asm.Type)8 IOException (java.io.IOException)7 Method (java.lang.reflect.Method)7 ObjectInput (java.io.ObjectInput)6 ObjectOutput (java.io.ObjectOutput)6 Externalizable (java.io.Externalizable)4 Collection (java.util.Collection)4 Thing (org.drools.core.factmodel.traits.Thing)4 TraitFieldTMS (org.drools.core.factmodel.traits.TraitFieldTMS)3 ReactiveObject (org.drools.core.phreak.ReactiveObject)3
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