sun.reflect.annotation.ExceptionProxy Java Examples

Object getValue(Attribute attr) {
    Method method;              // runtime method of annotation element
    try {
        method = annoType.getMethod(meth.name.toString());
    } catch (NoSuchMethodException e) {
        return null;
    }
    returnClass = method.getReturnType();
    attr.accept(this);
    if (!(value instanceof ExceptionProxy) &&
        !AnnotationType.invocationHandlerReturnType(returnClass)
                                                .isInstance(value)) {
        typeMismatch(method, attr);
    }
    return value;
}
 

Object getValue(Attribute attr) {
    Method method;              // runtime method of annotation element
    try {
        method = annoType.getMethod(meth.name.toString());
    } catch (NoSuchMethodException e) {
        return null;
    }
    returnClass = method.getReturnType();
    attr.accept(this);
    if (!(value instanceof ExceptionProxy) &&
        !AnnotationType.invocationHandlerReturnType(returnClass)
                                                .isInstance(value)) {
        typeMismatch(method, attr);
    }
    return value;
}
 

/**
 * Returns the default value for the annotation member represented by
 * this {@code Method} instance.  If the member is of a primitive type,
 * an instance of the corresponding wrapper type is returned. Returns
 * null if no default is associated with the member, or if the method
 * instance does not represent a declared member of an annotation type.
 *
 * @return the default value for the annotation member represented
 *     by this {@code Method} instance.
 * @throws TypeNotPresentException if the annotation is of type
 *     {@link Class} and no definition can be found for the
 *     default class value.
 * @since  1.5
 */
public Object getDefaultValue() {
    if  (annotationDefault == null)
        return null;
    Class<?> memberType = AnnotationType.invocationHandlerReturnType(
        getReturnType());
    Object result = AnnotationParser.parseMemberValue(
        memberType, ByteBuffer.wrap(annotationDefault),
        SharedSecrets.getJavaLangAccess().
            getConstantPool(getDeclaringClass()),
        getDeclaringClass());
    if (result instanceof ExceptionProxy) {
        if (result instanceof TypeNotPresentExceptionProxy) {
            TypeNotPresentExceptionProxy proxy = (TypeNotPresentExceptionProxy)result;
            throw new TypeNotPresentException(proxy.typeName(), proxy.getCause());
        }
        throw new AnnotationFormatError("Invalid default: " + this);
    }
    return result;
}
 

/**
 * Returns the default value for the annotation member represented by
 * this {@code Method} instance.  If the member is of a primitive type,
 * an instance of the corresponding wrapper type is returned. Returns
 * null if no default is associated with the member, or if the method
 * instance does not represent a declared member of an annotation type.
 *
 * @return the default value for the annotation member represented
 *     by this {@code Method} instance.
 * @throws TypeNotPresentException if the annotation is of type
 *     {@link Class} and no definition can be found for the
 *     default class value.
 * @since  1.5
 */
public Object getDefaultValue() {
    if  (annotationDefault == null)
        return null;
    Class<?> memberType = AnnotationType.invocationHandlerReturnType(
        getReturnType());
    Object result = AnnotationParser.parseMemberValue(
        memberType, ByteBuffer.wrap(annotationDefault),
        SharedSecrets.getJavaLangAccess().
            getConstantPool(getDeclaringClass()),
        getDeclaringClass());
    if (result instanceof ExceptionProxy) {
        if (result instanceof TypeNotPresentExceptionProxy) {
            TypeNotPresentExceptionProxy proxy = (TypeNotPresentExceptionProxy)result;
            throw new TypeNotPresentException(proxy.typeName(), proxy.getCause());
        }
        throw new AnnotationFormatError("Invalid default: " + this);
    }
    return result;
}
 

public void visitArray(Attribute.Array a) {
    Name elemName = ((ArrayType) a.type).elemtype.tsym.getQualifiedName();

    if (elemName.equals(elemName.table.names.java_lang_Class)) {   // Class[]
        // Construct a proxy for a MirroredTypesException
        ListBuffer<TypeMirror> elems = new ListBuffer<TypeMirror>();
        for (Attribute value : a.values) {
            Type elem = ((Attribute.Class) value).type;
            elems.append(elem);
        }
        value = new MirroredTypesExceptionProxy(elems.toList());

    } else {
        int len = a.values.length;
        Class<?> returnClassSaved = returnClass;
        returnClass = returnClass.getComponentType();
        try {
            Object res = Array.newInstance(returnClass, len);
            for (int i = 0; i < len; i++) {
                a.values[i].accept(this);
                if (value == null || value instanceof ExceptionProxy) {
                    return;
                }
                try {
                    Array.set(res, i, value);
                } catch (IllegalArgumentException e) {
                    value = null;       // indicates a type mismatch
                    return;
                }
            }
            value = res;
        } finally {
            returnClass = returnClassSaved;
        }
    }
}
 

public void visitArray(Attribute.Array a) {
    Name elemName = ((ArrayType) a.type).elemtype.tsym.getQualifiedName();

    if (elemName.equals(elemName.table.names.java_lang_Class)) {   // Class[]
        // Construct a proxy for a MirroredTypesException
        ListBuffer<TypeMirror> elems = new ListBuffer<TypeMirror>();
        for (Attribute value : a.values) {
            Type elem = ((Attribute.Class) value).type;
            elems.append(elem);
        }
        value = new MirroredTypesExceptionProxy(elems.toList());

    } else {
        int len = a.values.length;
        Class<?> returnClassSaved = returnClass;
        returnClass = returnClass.getComponentType();
        try {
            Object res = Array.newInstance(returnClass, len);
            for (int i = 0; i < len; i++) {
                a.values[i].accept(this);
                if (value == null || value instanceof ExceptionProxy) {
                    return;
                }
                try {
                    Array.set(res, i, value);
                } catch (IllegalArgumentException e) {
                    value = null;       // indicates a type mismatch
                    return;
                }
            }
            value = res;
        } finally {
            returnClass = returnClassSaved;
        }
    }
}