Example usage for org.objectweb.asm MethodVisitor visitLabel

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

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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.apache.cxf.binding.corba.utils.CorbaAnyHelper.java

License:Apache License

private static void addExtractOverride(ClassWriter cw) {
    // TODO Auto-generated method stub
    MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "extract_Streamable",
            "()Lorg/omg/CORBA/portable/Streamable;", null, null);
    mv.visitCode();//from  ww  w  .j  a  v  a2  s  . c  o  m
    Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitLineNumber(47, l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "org/apache/cxf/binding/corba/utils/FixedAnyImpl", "obj",
            "Lorg/omg/CORBA/portable/Streamable;");
    Label l1 = new Label();
    mv.visitJumpInsn(Opcodes.IFNULL, l1);
    Label l2 = new Label();
    mv.visitLabel(l2);
    mv.visitLineNumber(48, l2);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "org/apache/cxf/binding/corba/utils/FixedAnyImpl", "obj",
            "Lorg/omg/CORBA/portable/Streamable;");
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitLabel(l1);
    mv.visitLineNumber(50, l1);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "com/sun/corba/se/impl/corba/AnyImpl", "extract_Streamable",
            "()Lorg/omg/CORBA/portable/Streamable;");
    mv.visitInsn(Opcodes.ARETURN);
    Label l3 = new Label();
    mv.visitLabel(l3);
    mv.visitLocalVariable("this", "Lorg/apache/cxf/binding/corba/utils/FixedAnyImpl;", null, l0, l3, 0);
    mv.visitMaxs(1, 1);
    mv.visitEnd();

}

From source file:org.apache.cxf.binding.corba.utils.CorbaAnyHelper.java

License:Apache License

private static void addInsertOverride(ClassWriter cw) {
    MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "insert_Streamable",
            "(Lorg/omg/CORBA/portable/Streamable;)V", null, null);
    mv.visitCode();/*  w w  w. j  a v a  2  s .  c  o m*/
    Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitLineNumber(43, l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "com/sun/corba/se/impl/corba/AnyImpl", "insert_Streamable",
            "(Lorg/omg/CORBA/portable/Streamable;)V");
    Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLineNumber(44, l1);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, "org/apache/cxf/binding/corba/utils/FixedAnyImpl", "obj",
            "Lorg/omg/CORBA/portable/Streamable;");
    Label l2 = new Label();
    mv.visitLabel(l2);
    mv.visitLineNumber(45, l2);
    mv.visitInsn(Opcodes.RETURN);
    Label l3 = new Label();
    mv.visitLabel(l3);
    mv.visitLocalVariable("this", "Lorg/apache/cxf/binding/corba/utils/FixedAnyImpl;", null, l0, l3, 0);
    mv.visitLocalVariable("s", "Lorg/omg/CORBA/portable/Streamable;", null, l0, l3, 1);
    mv.visitMaxs(2, 2);
    mv.visitEnd();
}

From source file:org.apache.cxf.binding.corba.utils.CorbaAnyHelper.java

License:Apache License

private static void addFixedAnyConstructor(ClassWriter cw) {
    MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "(Lorg/omg/CORBA/ORB;)V", null, null);
    mv.visitCode();/*from w  ww.  j  av a 2  s . c  o m*/
    Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitLineNumber(36, l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitTypeInsn(Opcodes.CHECKCAST, "com/sun/corba/se/spi/orb/ORB");
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "com/sun/corba/se/impl/corba/AnyImpl", "<init>",
            "(Lcom/sun/corba/se/spi/orb/ORB;)V");
    Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLineNumber(37, l1);
    mv.visitInsn(Opcodes.RETURN);
    Label l2 = new Label();
    mv.visitLabel(l2);
    mv.visitLocalVariable("this", "Lorg/apache/cxf/binding/corba/utils/FixedAnyImpl;", null, l0, l2, 0);
    mv.visitLocalVariable("orb", "Lorg/omg/CORBA/ORB;", null, l0, l2, 1);
    mv.visitMaxs(2, 2);
    mv.visitEnd();

    mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "(Lorg/omg/CORBA/ORB;Lorg/omg/CORBA/Any;)V", null, null);
    mv.visitCode();
    l0 = new Label();
    mv.visitLabel(l0);
    mv.visitLineNumber(39, l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitTypeInsn(Opcodes.CHECKCAST, "com/sun/corba/se/spi/orb/ORB");
    mv.visitVarInsn(Opcodes.ALOAD, 2);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "com/sun/corba/se/impl/corba/AnyImpl", "<init>",
            "(Lcom/sun/corba/se/spi/orb/ORB;Lorg/omg/CORBA/Any;)V");
    l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLineNumber(40, l1);
    mv.visitInsn(Opcodes.RETURN);
    l2 = new Label();
    mv.visitLabel(l2);
    mv.visitLocalVariable("this", "Lorg/apache/cxf/binding/corba/utils/FixedAnyImpl;", null, l0, l2, 0);
    mv.visitLocalVariable("orb", "Lorg/omg/CORBA/ORB;", null, l0, l2, 1);
    mv.visitLocalVariable("any", "Lorg/omg/CORBA/Any;", null, l0, l2, 2);
    mv.visitMaxs(3, 3);
    mv.visitEnd();

}

From source file:org.apache.cxf.jaxb.JAXBUtils.java

License:Apache License

private static Class<?> createNamespaceWrapperInternal(ASMHelper helper, ClassWriter cw) {
    String className = "org.apache.cxf.jaxb.NamespaceMapperInternal";
    FieldVisitor fv;/*from w  w w  .  j  ava2  s . c om*/
    MethodVisitor mv;
    cw.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC + Opcodes.ACC_FINAL + Opcodes.ACC_SUPER,
            "org/apache/cxf/jaxb/NamespaceMapperInternal", null,
            "com/sun/xml/internal/bind/marshaller/NamespacePrefixMapper", null);

    cw.visitSource("NamespaceMapper.java", null);

    fv = cw.visitField(Opcodes.ACC_PRIVATE + Opcodes.ACC_FINAL, "nspref", "Ljava/util/Map;",
            "Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;", null);
    fv.visitEnd();

    mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "(Ljava/util/Map;)V",
            "(Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;)V", null);
    mv.visitCode();
    Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitLineNumber(30, l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "com/sun/xml/internal/bind/marshaller/NamespacePrefixMapper",
            "<init>", "()V");
    Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLineNumber(31, l1);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, "org/apache/cxf/jaxb/NamespaceMapperInternal", "nspref",
            "Ljava/util/Map;");
    Label l2 = new Label();
    mv.visitLabel(l2);
    mv.visitLineNumber(32, l2);
    mv.visitInsn(Opcodes.RETURN);
    Label l3 = new Label();
    mv.visitLabel(l3);
    mv.visitLocalVariable("this", "Lorg/apache/cxf/jaxb/NamespaceMapperInternal;", null, l0, l3, 0);
    mv.visitLocalVariable("nspref", "Ljava/util/Map;", "Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;",
            l0, l3, 1);
    mv.visitMaxs(2, 2);
    mv.visitEnd();

    mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "getPreferredPrefix",
            "(Ljava/lang/String;Ljava/lang/String;Z)Ljava/lang/String;", null, null);
    mv.visitCode();
    l0 = new Label();
    mv.visitLabel(l0);
    mv.visitLineNumber(38, l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "org/apache/cxf/jaxb/NamespaceMapperInternal", "nspref",
            "Ljava/util/Map;");
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Map", "get",
            "(Ljava/lang/Object;)Ljava/lang/Object;");
    mv.visitTypeInsn(Opcodes.CHECKCAST, "java/lang/String");
    mv.visitVarInsn(Opcodes.ASTORE, 4);
    l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLineNumber(39, l1);
    mv.visitVarInsn(Opcodes.ALOAD, 4);
    l2 = new Label();
    mv.visitJumpInsn(Opcodes.IFNULL, l2);
    l3 = new Label();
    mv.visitLabel(l3);
    mv.visitLineNumber(40, l3);
    mv.visitVarInsn(Opcodes.ALOAD, 4);
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitLabel(l2);
    mv.visitLineNumber(42, l2);
    mv.visitVarInsn(Opcodes.ALOAD, 2);
    mv.visitInsn(Opcodes.ARETURN);
    Label l4 = new Label();
    mv.visitLabel(l4);
    mv.visitLocalVariable("this", "Lorg/apache/cxf/jaxb/NamespaceMapperInternal;", null, l0, l4, 0);
    mv.visitLocalVariable("namespaceUri", "Ljava/lang/String;", null, l0, l4, 1);
    mv.visitLocalVariable("suggestion", "Ljava/lang/String;", null, l0, l4, 2);
    mv.visitLocalVariable("requirePrefix", "Z", null, l0, l4, 3);
    mv.visitLocalVariable("prefix", "Ljava/lang/String;", null, l1, l4, 4);
    mv.visitMaxs(2, 5);
    mv.visitEnd();
    cw.visitEnd();

    byte bts[] = cw.toByteArray();
    return helper.loadClass(className, JAXBUtils.class, bts);
}

From source file:org.apache.cxf.jaxb.WrapperHelperCompiler.java

License:Apache License

private boolean addSignature() {
    String sig = computeSignature();
    if (sig == null) {
        return false;
    }//from ww  w.j  a v a2 s.  c o m
    MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "getSignature", "()Ljava/lang/String;", null, null);
    mv.visitCode();
    mv.visitLdcInsn(sig);
    Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitLineNumber(100, l0);
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
    return true;
}

From source file:org.apache.cxf.jaxb.WrapperHelperCompiler.java

License:Apache License

private static void addConstructor(String newClassName, ClassWriter cw, Class<?> objectFactory) {

    if (objectFactory != null) {
        String ofName = "L" + periodToSlashes(objectFactory.getName()) + ";";
        FieldVisitor fv = cw.visitField(0, "factory", ofName, null, null);
        fv.visitEnd();/*from www  . j a  v  a 2s .  c o m*/
    }

    MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
    mv.visitCode();
    Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitLineNumber(102, l0);

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
    if (objectFactory != null) {
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitTypeInsn(Opcodes.NEW, periodToSlashes(objectFactory.getName()));
        mv.visitInsn(Opcodes.DUP);
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, periodToSlashes(objectFactory.getName()), "<init>", "()V");
        mv.visitFieldInsn(Opcodes.PUTFIELD, periodToSlashes(newClassName), "factory",
                "L" + periodToSlashes(objectFactory.getName()) + ";");
    }

    mv.visitInsn(Opcodes.RETURN);

    Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLineNumber(103, l0);

    mv.visitLocalVariable("this", "L" + newClassName + ";", null, l0, l1, 0);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

From source file:org.apache.cxf.jaxb.WrapperHelperCompiler.java

License:Apache License

private boolean addCreateWrapperObject(String newClassName, Class<?> objectFactoryClass) {

    MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "createWrapperObject",
            "(Ljava/util/List;)Ljava/lang/Object;", "(Ljava/util/List<*>;)Ljava/lang/Object;",
            new String[] { "org/apache/cxf/interceptor/Fault" });
    mv.visitCode();/*from w w w  .  j  a  v  a2  s .  co  m*/
    Label lBegin = new Label();
    mv.visitLabel(lBegin);
    mv.visitLineNumber(104, lBegin);

    mv.visitTypeInsn(Opcodes.NEW, periodToSlashes(wrapperType.getName()));
    mv.visitInsn(Opcodes.DUP);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, periodToSlashes(wrapperType.getName()), "<init>", "()V");
    mv.visitVarInsn(Opcodes.ASTORE, 2);

    for (int x = 0; x < setMethods.length; x++) {
        if (getMethods[x] == null) {
            if (setMethods[x] == null && fields[x] == null) {
                // null placeholder
                continue;
            } else {
                return false;
            }
        }
        Class<?> tp = getMethods[x].getReturnType();
        mv.visitVarInsn(Opcodes.ALOAD, 2);

        if (List.class.isAssignableFrom(tp)) {
            doCollection(mv, x);
        } else {
            if (JAXBElement.class.isAssignableFrom(tp)) {
                mv.visitVarInsn(Opcodes.ALOAD, 0);
                mv.visitFieldInsn(Opcodes.GETFIELD, periodToSlashes(newClassName), "factory",
                        "L" + periodToSlashes(objectFactoryClass.getName()) + ";");
            }
            mv.visitVarInsn(Opcodes.ALOAD, 1);
            mv.visitIntInsn(Opcodes.BIPUSH, x);
            mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/List", "get", "(I)Ljava/lang/Object;");

            if (tp.isPrimitive()) {
                mv.visitTypeInsn(Opcodes.CHECKCAST, NONPRIMITIVE_MAP.get(tp));
                mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, NONPRIMITIVE_MAP.get(tp), tp.getName() + "Value",
                        "()" + PRIMITIVE_MAP.get(tp));
            } else if (JAXBElement.class.isAssignableFrom(tp)) {
                mv.visitTypeInsn(Opcodes.CHECKCAST,
                        periodToSlashes(jaxbMethods[x].getParameterTypes()[0].getName()));
                mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, periodToSlashes(objectFactoryClass.getName()),
                        jaxbMethods[x].getName(), getMethodSignature(jaxbMethods[x]));
            } else if (tp.isArray()) {
                mv.visitTypeInsn(Opcodes.CHECKCAST, getClassCode(tp));
            } else {
                mv.visitTypeInsn(Opcodes.CHECKCAST, periodToSlashes(tp.getName()));
            }
            mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, periodToSlashes(wrapperType.getName()),
                    setMethods[x].getName(), "(" + getClassCode(tp) + ")V");
        }
    }

    mv.visitVarInsn(Opcodes.ALOAD, 2);
    mv.visitInsn(Opcodes.ARETURN);

    Label lEnd = new Label();
    mv.visitLabel(lEnd);
    mv.visitLocalVariable("this", "L" + newClassName + ";", null, lBegin, lEnd, 0);
    mv.visitLocalVariable("lst", "Ljava/util/List;", "Ljava/util/List<*>;", lBegin, lEnd, 1);
    mv.visitLocalVariable("ok", "L" + periodToSlashes(wrapperType.getName()) + ";", null, lBegin, lEnd, 2);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
    return true;
}

From source file:org.apache.cxf.jaxb.WrapperHelperCompiler.java

License:Apache License

private void doCollection(MethodVisitor mv, int x) {
    // List aVal = obj.getA();
    // List newA = (List)lst.get(99);
    // if (aVal == null) {
    // obj.setA(newA);
    // } else if (newA != null) {
    // aVal.addAll(newA);
    // }// ww  w  . java  2s . c  om

    Label l3 = new Label();
    mv.visitLabel(l3);
    mv.visitLineNumber(114, l3);

    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, periodToSlashes(wrapperType.getName()), getMethods[x].getName(),
            getMethodSignature(getMethods[x]));
    mv.visitVarInsn(Opcodes.ASTORE, 3);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitIntInsn(Opcodes.BIPUSH, x);
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/List", "get", "(I)Ljava/lang/Object;");
    mv.visitTypeInsn(Opcodes.CHECKCAST, "java/util/List");
    mv.visitVarInsn(Opcodes.ASTORE, 4);
    mv.visitVarInsn(Opcodes.ALOAD, 3);
    Label nonNullLabel = new Label();
    mv.visitJumpInsn(Opcodes.IFNONNULL, nonNullLabel);

    if (setMethods[x] == null) {
        mv.visitTypeInsn(Opcodes.NEW, "java/lang/RuntimeException");
        mv.visitInsn(Opcodes.DUP);
        mv.visitLdcInsn(getMethods[x].getName() + " returned null and there isn't a set method.");
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/RuntimeException", "<init>",
                "(Ljava/lang/String;)V");
        mv.visitInsn(Opcodes.ATHROW);
    } else {
        mv.visitVarInsn(Opcodes.ALOAD, 2);
        mv.visitVarInsn(Opcodes.ALOAD, 4);
        mv.visitTypeInsn(Opcodes.CHECKCAST, getMethods[x].getReturnType().getName().replace('.', '/'));
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, periodToSlashes(wrapperType.getName()),
                setMethods[x].getName(), getMethodSignature(setMethods[x]));
    }
    Label jumpOverLabel = new Label();
    mv.visitJumpInsn(Opcodes.GOTO, jumpOverLabel);
    mv.visitLabel(nonNullLabel);
    mv.visitLineNumber(106, nonNullLabel);

    mv.visitVarInsn(Opcodes.ALOAD, 4);
    mv.visitJumpInsn(Opcodes.IFNULL, jumpOverLabel);
    mv.visitVarInsn(Opcodes.ALOAD, 3);
    mv.visitVarInsn(Opcodes.ALOAD, 4);
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/List", "addAll", "(Ljava/util/Collection;)Z");
    mv.visitInsn(Opcodes.POP);
    mv.visitLabel(jumpOverLabel);
    mv.visitLineNumber(107, jumpOverLabel);
}

From source file:org.apache.cxf.jaxb.WrapperHelperCompiler.java

License:Apache License

private static boolean addGetWrapperParts(String newClassName, Class<?> wrapperClass, Method getMethods[],
        Field fields[], ClassWriter cw) {
    MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "getWrapperParts",
            "(Ljava/lang/Object;)Ljava/util/List;", "(Ljava/lang/Object;)Ljava/util/List<Ljava/lang/Object;>;",
            new String[] { "org/apache/cxf/interceptor/Fault" });
    mv.visitCode();//ww  w.  j  a  v  a 2  s.  c o  m
    Label lBegin = new Label();
    mv.visitLabel(lBegin);
    mv.visitLineNumber(108, lBegin);

    // the ret List
    mv.visitTypeInsn(Opcodes.NEW, "java/util/ArrayList");
    mv.visitInsn(Opcodes.DUP);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/util/ArrayList", "<init>", "()V");
    mv.visitVarInsn(Opcodes.ASTORE, 2);

    // cast the Object to the wrapperType type
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitTypeInsn(Opcodes.CHECKCAST, periodToSlashes(wrapperClass.getName()));
    mv.visitVarInsn(Opcodes.ASTORE, 3);

    for (int x = 0; x < getMethods.length; x++) {
        Method method = getMethods[x];
        if (method == null && fields[x] != null) {
            // fallback to reflection mode
            return false;
        }

        if (method == null) {
            Label l3 = new Label();
            mv.visitLabel(l3);
            mv.visitLineNumber(200 + x, l3);

            mv.visitVarInsn(Opcodes.ALOAD, 2);
            mv.visitInsn(Opcodes.ACONST_NULL);
            mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/List", "add", "(Ljava/lang/Object;)Z");
            mv.visitInsn(Opcodes.POP);
        } else {
            Label l3 = new Label();
            mv.visitLabel(l3);
            mv.visitLineNumber(250 + x, l3);

            mv.visitVarInsn(Opcodes.ALOAD, 2);
            mv.visitVarInsn(Opcodes.ALOAD, 3);
            mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, periodToSlashes(wrapperClass.getName()), method.getName(),
                    getMethodSignature(method));
            if (method.getReturnType().isPrimitive()) {
                // wrap into Object type
                createObjectWrapper(mv, method.getReturnType());
            }
            if (JAXBElement.class.isAssignableFrom(method.getReturnType())) {
                mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "javax/xml/bind/JAXBElement", "getValue",
                        "()Ljava/lang/Object;");
            }

            mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/List", "add", "(Ljava/lang/Object;)Z");
            mv.visitInsn(Opcodes.POP);
        }
    }

    // return the list
    Label l2 = new Label();
    mv.visitLabel(l2);
    mv.visitLineNumber(108, l2);
    mv.visitVarInsn(Opcodes.ALOAD, 2);
    mv.visitInsn(Opcodes.ARETURN);

    Label lEnd = new Label();
    mv.visitLabel(lEnd);
    mv.visitLocalVariable("this", "L" + newClassName + ";", null, lBegin, lEnd, 0);
    mv.visitLocalVariable("o", "Ljava/lang/Object;", null, lBegin, lEnd, 1);
    mv.visitLocalVariable("ret", "Ljava/util/List;", "Ljava/util/List<Ljava/lang/Object;>;", lBegin, lEnd, 2);
    mv.visitLocalVariable("ok", "L" + periodToSlashes(wrapperClass.getName()) + ";", null, lBegin, lEnd, 3);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
    return true;
}

From source file:org.apache.cxf.jaxws.WrapperClassGenerator.java

License:Apache License

private void createWrapperClass(MessagePartInfo wrapperPart, MessageInfo messageInfo, OperationInfo op,
        Method method, boolean isRequest) {

    QName wrapperElement = messageInfo.getName();

    boolean anonymous = factory.getAnonymousWrapperTypes();

    ClassWriter cw = createClassWriter();
    String pkg = getPackageName(method) + ".jaxws_asm" + (anonymous ? "_an" : "");
    String className = pkg + "." + StringUtils.capitalize(op.getName().getLocalPart());
    if (!isRequest) {
        className = className + "Response";
    }/*w w w  .  j  a  v a2 s .  c om*/
    String pname = pkg + ".package-info";
    Class<?> def = findClass(pname, method.getDeclaringClass());
    if (def == null) {
        generatePackageInfo(pname, wrapperElement.getNamespaceURI(), method.getDeclaringClass());
    }

    def = findClass(className, method.getDeclaringClass());
    if (def != null) {
        wrapperPart.setTypeClass(def);
        wrapperBeans.add(def);
        return;
    }
    String classFileName = periodToSlashes(className);
    cw.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC + Opcodes.ACC_SUPER, classFileName, null, "java/lang/Object",
            null);

    AnnotationVisitor av0 = cw.visitAnnotation("Ljavax/xml/bind/annotation/XmlRootElement;", true);
    av0.visit("name", wrapperElement.getLocalPart());
    av0.visit("namespace", wrapperElement.getNamespaceURI());
    av0.visitEnd();

    av0 = cw.visitAnnotation("Ljavax/xml/bind/annotation/XmlAccessorType;", true);
    av0.visitEnum("value", "Ljavax/xml/bind/annotation/XmlAccessType;", "FIELD");
    av0.visitEnd();

    av0 = cw.visitAnnotation("Ljavax/xml/bind/annotation/XmlType;", true);
    if (!anonymous) {
        av0.visit("name", wrapperElement.getLocalPart());
        av0.visit("namespace", wrapperElement.getNamespaceURI());
    } else {
        av0.visit("name", "");
    }
    av0.visitEnd();

    // add constructor
    MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
    mv.visitCode();
    Label lbegin = new Label();
    mv.visitLabel(lbegin);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
    mv.visitInsn(Opcodes.RETURN);
    Label lend = new Label();
    mv.visitLabel(lend);
    mv.visitLocalVariable("this", "L" + classFileName + ";", null, lbegin, lend, 0);
    mv.visitMaxs(1, 1);
    mv.visitEnd();

    for (MessagePartInfo mpi : messageInfo.getMessageParts()) {
        generateMessagePart(cw, mpi, method, classFileName);
    }

    cw.visitEnd();

    Class<?> clz = loadClass(className, method.getDeclaringClass(), cw.toByteArray());
    wrapperPart.setTypeClass(clz);
    wrapperBeans.add(clz);
}