my.school.spring.beans.DataProviderPostProcessor.java Source code

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Here is the source code for my.school.spring.beans.DataProviderPostProcessor.java

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/*
 * Copyright 2016 Pivotal Software, 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 my.school.spring.beans;

import java.util.Arrays;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.stereotype.Component;
import org.springframework.util.ReflectionUtils;

/**
 *
 * @author skrymets
 */
@Component
public class DataProviderPostProcessor implements BeanPostProcessor {

    @Override
    public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {

        Arrays.stream(bean.getClass().getDeclaredFields()).forEach(f -> {
            CustomDataProvider annotation = f.getAnnotation(CustomDataProvider.class);
            if (annotation != null) {
                String seedValue = annotation.data();
                f.setAccessible(true);
                ReflectionUtils.setField(f, bean, seedValue);
            }
        });

        return bean;
    }

    @Override
    public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
        return bean;
    }

}