Examples with AnnotationVisitor org.apache.cxf.common.util.ASMHelper.AnnotationVisitor used on opensource projects

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Example 1 with AnnotationVisitor

use of org.apache.cxf.common.util.ASMHelper.AnnotationVisitor in project cxf by apache.

the class JAXBExtensionHelper method createExtensionClass.

// CHECKSTYLE:OFF - very complicated ASM code
private static Class<?> createExtensionClass(Class<?> cls, QName qname, ClassLoader loader) {
    String className = ASMHelper.periodToSlashes(cls.getName());
    ASMHelper helper = new ASMHelper();
    Class<?> extClass = helper.findClass(className + "Extensibility", loader);
    if (extClass != null) {
        return extClass;
    }
    ClassWriter cw = helper.createClassWriter();
    FieldVisitor fv;
    MethodVisitor mv;
    AnnotationVisitor av0;
    cw.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC + Opcodes.ACC_SUPER + Opcodes.ACC_SYNTHETIC, className + "Extensibility", null, className, new String[] { "javax/wsdl/extensions/ExtensibilityElement" });
    cw.visitSource(cls.getSimpleName() + "Extensibility.java", null);
    fv = cw.visitField(Opcodes.ACC_PRIVATE + Opcodes.ACC_FINAL + Opcodes.ACC_STATIC, "WSDL_REQUIRED", "Ljavax/xml/namespace/QName;", null, null);
    fv.visitEnd();
    fv = cw.visitField(0, "qn", "Ljavax/xml/namespace/QName;", null, null);
    fv.visitEnd();
    boolean hasAttributes = false;
    try {
        Method m = cls.getDeclaredMethod("getOtherAttributes");
        if (m != null && m.getReturnType() == Map.class) {
            hasAttributes = true;
        }
    } catch (Throwable t) {
    // ignore
    }
    if (hasAttributes) {
        mv = cw.visitMethod(Opcodes.ACC_STATIC, "<clinit>", "()V", null, null);
        mv.visitCode();
        Label l0 = helper.createLabel();
        mv.visitLabel(l0);
        mv.visitLineNumber(64, l0);
        mv.visitTypeInsn(Opcodes.NEW, "javax/xml/namespace/QName");
        mv.visitInsn(Opcodes.DUP);
        mv.visitLdcInsn("http://schemas.xmlsoap.org/wsdl/");
        mv.visitLdcInsn("required");
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "javax/xml/namespace/QName", "<init>", "(Ljava/lang/String;Ljava/lang/String;)V", false);
        mv.visitFieldInsn(Opcodes.PUTSTATIC, className + "Extensibility", "WSDL_REQUIRED", "Ljavax/xml/namespace/QName;");
        mv.visitInsn(Opcodes.RETURN);
        mv.visitMaxs(4, 0);
        mv.visitEnd();
    } else {
        fv = cw.visitField(Opcodes.ACC_PRIVATE, "required", "Ljava/lang/Boolean;", null, null);
        fv.visitEnd();
    }
    mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
    mv.visitCode();
    Label l0 = helper.createLabel();
    mv.visitLabel(l0);
    mv.visitLineNumber(33, l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, className, "<init>", "()V", false);
    Label l1 = helper.createLabel();
    mv.visitLabel(l1);
    mv.visitLineNumber(31, l1);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitTypeInsn(Opcodes.NEW, "javax/xml/namespace/QName");
    mv.visitInsn(Opcodes.DUP);
    mv.visitLdcInsn(qname.getNamespaceURI());
    mv.visitLdcInsn(qname.getLocalPart());
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "javax/xml/namespace/QName", "<init>", "(Ljava/lang/String;Ljava/lang/String;)V", false);
    mv.visitFieldInsn(Opcodes.PUTFIELD, className + "Extensibility", "qn", "Ljavax/xml/namespace/QName;");
    Label l2 = helper.createLabel();
    mv.visitLabel(l2);
    mv.visitLineNumber(34, l2);
    mv.visitInsn(Opcodes.RETURN);
    Label l3 = helper.createLabel();
    mv.visitLabel(l3);
    mv.visitLocalVariable("this", "L" + className + "Extensibility;", null, l0, l3, 0);
    mv.visitMaxs(5, 1);
    mv.visitEnd();
    mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "setElementType", "(Ljavax/xml/namespace/QName;)V", null, null);
    mv.visitCode();
    l0 = helper.createLabel();
    mv.visitLabel(l0);
    mv.visitLineNumber(37, l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, className + "Extensibility", "qn", "Ljavax/xml/namespace/QName;");
    l1 = helper.createLabel();
    mv.visitLabel(l1);
    mv.visitLineNumber(38, l1);
    mv.visitInsn(Opcodes.RETURN);
    l2 = helper.createLabel();
    mv.visitLabel(l2);
    mv.visitLocalVariable("this", "L" + className + "Extensibility;", null, l0, l2, 0);
    mv.visitLocalVariable("elementType", "Ljavax/xml/namespace/QName;", null, l0, l2, 1);
    mv.visitMaxs(2, 2);
    mv.visitEnd();
    mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "getElementType", "()Ljavax/xml/namespace/QName;", null, null);
    av0 = mv.visitAnnotation("Ljavax/xml/bind/annotation/XmlTransient;", true);
    av0.visitEnd();
    mv.visitCode();
    l0 = helper.createLabel();
    mv.visitLabel(l0);
    mv.visitLineNumber(40, l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, className + "Extensibility", "qn", "Ljavax/xml/namespace/QName;");
    mv.visitInsn(Opcodes.ARETURN);
    l1 = helper.createLabel();
    mv.visitLabel(l1);
    mv.visitLocalVariable("this", "L" + className + "Extensibility;", null, l0, l1, 0);
    mv.visitMaxs(1, 1);
    mv.visitEnd();
    if (hasAttributes) {
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "getRequired", "()Ljava/lang/Boolean;", null, null);
        mv.visitCode();
        l0 = helper.createLabel();
        mv.visitLabel(l0);
        mv.visitLineNumber(66, l0);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, className + "Extensibility", "getOtherAttributes", "()Ljava/util/Map;", false);
        mv.visitFieldInsn(Opcodes.GETSTATIC, className + "Extensibility", "WSDL_REQUIRED", "Ljavax/xml/namespace/QName;");
        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Map", "get", "(Ljava/lang/Object;)Ljava/lang/Object;", true);
        mv.visitTypeInsn(Opcodes.CHECKCAST, "java/lang/String");
        mv.visitVarInsn(Opcodes.ASTORE, 1);
        l1 = helper.createLabel();
        mv.visitLabel(l1);
        mv.visitLineNumber(67, l1);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        l2 = helper.createLabel();
        mv.visitJumpInsn(Opcodes.IFNONNULL, l2);
        mv.visitInsn(Opcodes.ACONST_NULL);
        l3 = helper.createLabel();
        mv.visitJumpInsn(Opcodes.GOTO, l3);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_APPEND, 1, new Object[] { "java/lang/String" }, 0, null);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Boolean", "valueOf", "(Ljava/lang/String;)Ljava/lang/Boolean;", false);
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/Boolean" });
        mv.visitInsn(Opcodes.ARETURN);
        Label l4 = helper.createLabel();
        mv.visitLabel(l4);
        mv.visitLocalVariable("this", "L" + className + "Extensibility;", null, l0, l4, 0);
        mv.visitLocalVariable("s", "Ljava/lang/String;", null, l1, l4, 1);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "setRequired", "(Ljava/lang/Boolean;)V", null, null);
        mv.visitCode();
        l0 = helper.createLabel();
        mv.visitLabel(l0);
        mv.visitLineNumber(76, l0);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        l1 = helper.createLabel();
        mv.visitJumpInsn(Opcodes.IFNONNULL, l1);
        l2 = helper.createLabel();
        mv.visitLabel(l2);
        mv.visitLineNumber(77, l2);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, className + "Extensibility", "getOtherAttributes", "()Ljava/util/Map;", false);
        mv.visitFieldInsn(Opcodes.GETSTATIC, className + "Extensibility", "WSDL_REQUIRED", "Ljavax/xml/namespace/QName;");
        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Map", "remove", "(Ljava/lang/Object;)Ljava/lang/Object;", true);
        mv.visitInsn(Opcodes.POP);
        l3 = helper.createLabel();
        mv.visitLabel(l3);
        mv.visitLineNumber(78, l3);
        l4 = helper.createLabel();
        mv.visitJumpInsn(Opcodes.GOTO, l4);
        mv.visitLabel(l1);
        mv.visitLineNumber(79, l1);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, className + "Extensibility", "getOtherAttributes", "()Ljava/util/Map;", false);
        mv.visitFieldInsn(Opcodes.GETSTATIC, className + "Extensibility", "WSDL_REQUIRED", "Ljavax/xml/namespace/QName;");
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Boolean", "toString", "()Ljava/lang/String;", false);
        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Map", "put", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;", true);
        mv.visitInsn(Opcodes.POP);
        mv.visitLabel(l4);
        mv.visitLineNumber(81, l4);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitInsn(Opcodes.RETURN);
        Label l5 = helper.createLabel();
        mv.visitLabel(l5);
        mv.visitLocalVariable("this", "L" + className + "Extensibility;", null, l0, l5, 0);
        mv.visitLocalVariable("b", "Ljava/lang/Boolean;", null, l0, l5, 1);
        mv.visitMaxs(3, 2);
        mv.visitEnd();
    } else {
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "getRequired", "()Ljava/lang/Boolean;", null, null);
        mv.visitCode();
        l0 = helper.createLabel();
        mv.visitLabel(l0);
        mv.visitLineNumber(68, l0);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, className + "Extensibility", "required", "Ljava/lang/Boolean;");
        mv.visitInsn(Opcodes.ARETURN);
        l1 = helper.createLabel();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + className + "Extensibility;", null, l0, l1, 0);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "setRequired", "(Ljava/lang/Boolean;)V", null, null);
        mv.visitCode();
        l0 = helper.createLabel();
        mv.visitLabel(l0);
        mv.visitLineNumber(71, l0);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitFieldInsn(Opcodes.PUTFIELD, className + "Extensibility", "required", "Ljava/lang/Boolean;");
        l1 = helper.createLabel();
        mv.visitLabel(l1);
        mv.visitLineNumber(72, l1);
        mv.visitInsn(Opcodes.RETURN);
        l2 = helper.createLabel();
        mv.visitLabel(l2);
        mv.visitLocalVariable("this", "L" + className + "Extensibility;", null, l0, l2, 0);
        mv.visitLocalVariable("b", "Ljava/lang/Boolean;", null, l0, l2, 1);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
    }
    cw.visitEnd();
    byte[] bytes = cw.toByteArray();
    return helper.loadClass(className + "Extensibility", loader, bytes);
}
Also used : Label(org.apache.cxf.common.util.ASMHelper.Label) ASMHelper(org.apache.cxf.common.util.ASMHelper) Method(java.lang.reflect.Method) FieldVisitor(org.apache.cxf.common.util.ASMHelper.FieldVisitor) ClassWriter(org.apache.cxf.common.util.ASMHelper.ClassWriter) MethodVisitor(org.apache.cxf.common.util.ASMHelper.MethodVisitor) AnnotationVisitor(org.apache.cxf.common.util.ASMHelper.AnnotationVisitor) Map(java.util.Map) HashMap(java.util.HashMap)

Aggregations

Method (java.lang.reflect.Method)1 HashMap (java.util.HashMap)1 Map (java.util.Map)1 ASMHelper (org.apache.cxf.common.util.ASMHelper)1 AnnotationVisitor (org.apache.cxf.common.util.ASMHelper.AnnotationVisitor)1 ClassWriter (org.apache.cxf.common.util.ASMHelper.ClassWriter)1 FieldVisitor (org.apache.cxf.common.util.ASMHelper.FieldVisitor)1 Label (org.apache.cxf.common.util.ASMHelper.Label)1 MethodVisitor (org.apache.cxf.common.util.ASMHelper.MethodVisitor)1
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