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/*
 * Copyright (C) 2018  Sun.Hao
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */

package lodsve.core.properties.relaxedbind;

import lodsve.core.properties.relaxedbind.annotations.ConfigurationProperties;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.core.annotation.AnnotationUtils;

/**
 * 在properties bean初始化前设置配置文件中的值.
 *
 * @author sunhao(sunhao.java @ gmail.com)
 * @version V1.0, 16/1/9 下午5:41
 */
public class ConfigurationPropertiesBindingPostProcessor implements BeanPostProcessor {

    @Override
    @SuppressWarnings("unchecked")
    public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
        ConfigurationProperties annotation = AnnotationUtils.findAnnotation(bean.getClass(), ConfigurationProperties.class);

        if (annotation == null) {
            return bean;
        }

        return new RelaxedBindFactory.Builder(bean.getClass()).build();
    }

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