OverridePropertiesMerging.java

/*
 * Copyright © 2014 YAOCHEN Corporation, All Rights Reserved
 */
package com.easyooo.framework.cache.impl;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import com.easyooo.framework.cache.CacheException;
import com.easyooo.framework.cache.PropertiesMerging;
import com.easyooo.framework.common.util.CglibUtil;

/**
 * 默认实现的规则，如果Map中存在同名的属性则会Override上一次赋值的属性
 * 
 * @see CglibUtil#populate(Map, Object)
 * 
 * @author Killer
 */
public class OverridePropertiesMerging implements PropertiesMerging {

	@Override
	public Object merge(Object dto ,List<Map<String, Object>> props)throws CacheException{
		Map<String, Object> properties = new HashMap<String, Object>();
		for (Map<String, Object> map : props)
			properties.putAll(map);
		
		try {
			CglibUtil.populate(properties, dto);
		} catch (Exception e) {
			throw new CacheException("Unable to merge the attribute value", e);
		}
		return dto;
	}
}