com.wavemaker.runtime.data.util.PropertyDescription Maven / Gradle / Ivy

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/**
 * Copyright (C) 2020 WaveMaker, Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 

 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.wavemaker.runtime.data.util;

import java.beans.PropertyDescriptor;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.util.Optional;

/**
 * @author Dilip Kumar
 * @since 8/5/18
 */
public class PropertyDescription {

    private final Field field;
    private final PropertyDescriptor descriptor;

    public PropertyDescription(final Field field, final PropertyDescriptor descriptor) {
        this.field = field;
        this.descriptor = descriptor;
    }

    public Field getField() {
        return field;
    }

    public PropertyDescriptor getDescriptor() {
        return descriptor;
    }

    public boolean isAnnotationNotPresent(Class annotation) {
        return !isAnnotationPresent(annotation);
    }

    public boolean isAnnotationPresent(Class annotation) {
        return findAnnotation(annotation).isPresent();
    }

    public  Optional findAnnotation(Class annotation) {
        Optional result = Optional.empty();

        if (field.isAnnotationPresent(annotation)) {
            result = Optional.of(field.getAnnotation(annotation));
        } else if (descriptor.getReadMethod().isAnnotationPresent(annotation)) {
            result = Optional.of(descriptor.getReadMethod().getAnnotation(annotation));
        } else if (descriptor.getWriteMethod().isAnnotationPresent(annotation)) {
            result = Optional.of(descriptor.getWriteMethod().getAnnotation(annotation));
        }

        return result;
    }
}