com.jinmibao.common.util.BeanUtil.java Source code

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Here is the source code for com.jinmibao.common.util.BeanUtil.java

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/*
 * Copyright 1999-2004 Alibaba.com All right reserved. This software is the confidential and proprietary information of
 * Alibaba.com ("Confidential Information"). You shall not disclose such Confidential Information and shall use it only
 * in accordance with the terms of the license agreement you entered into with Alibaba.com.
 */
package com.jinmibao.common.util;

import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeanUtils;

/**
 * BeanUtil.java??TODO ??
 * 
 * @author chongan.wangca 2012-3-30 ?8:23:10
 */
public class BeanUtil {

    private final static Logger logger = LoggerFactory.getLogger(BeanUtil.class);

    public static void copyProperties(Object source, Object target) {
        BeanUtils.copyProperties(source, target);
    }

    /**
     * ? ????? ?
     * 
     * @param source
     * @param target
     */
    public static void copyPropertiesIfNull(Object source, Object target) {
        if (source == null || target == null) {
            throw new RuntimeException("Source Or Target Can't Be Null");
        }
        Method[] methods = target.getClass().getDeclaredMethods();
        List<String> notNullPropertyList = new ArrayList<String>();
        for (Method method : methods) {
            if (!method.getName().startsWith("get")) {
                continue;
            }
            try {
                Object methodResult = method.invoke(target);
                if (methodResult != null) {
                    if (method.getReturnType().getName().equals("java.lang.String")
                            && StringUtil.isBlank((String) methodResult)) {
                        continue;
                    }
                    notNullPropertyList.add(BeanUtils.findPropertyForMethod(method).getName());
                }
            } catch (Exception e) {
                logger.error("", e);
            }
        }
        BeanUtils.copyProperties(source, target, ListUtil.list2Array(notNullPropertyList));
    }
}