content: /**
   * Copyright (c) 2005-2012 springside.org.cn
   */
  package com.jeespring.common.mapper;
  
  import java.util.Collection;
  import java.util.List;
  
  import org.dozer.DozerBeanMapper;
  
  import com.google.common.collect.Lists;
  
  /**
   * 简单封装Dozer, 实现深度转换Bean<->Bean的Mapper.实现:
   *  
   * 1. 持有Mapper的单例. 
   * 2. 返回值类型转换.
   * 3. 批量转换Collection中的所有对象.
   * 4. 区分创建新的B对象与将对象A值复制到已存在的B对象两种函数.
   * 
   * @author calvin
   * @version 2013-01-15
   */
  public class BeanMapper {
  
  	/**
  	 * 持有Dozer单例, 避免重复创建DozerMapper消耗资源.
  	 */
  	private static DozerBeanMapper dozer = new DozerBeanMapper();
  
  	/**
  	 * 基于Dozer转换对象的类型.
  	 */
  	public static <T> T map(Object source, Class<T> destinationClass) {
  		return dozer.map(source, destinationClass);
  	}
  
  	/**
  	 * 基于Dozer转换Collection中对象的类型.
  	 */
  	@SuppressWarnings("rawtypes")
  	public static <T> List<T> mapList(Collection sourceList, Class<T> destinationClass) {
  		List<T> destinationList = Lists.newArrayList();
  		for (Object sourceObject : sourceList) {
  			T destinationObject = dozer.map(sourceObject, destinationClass);
  			destinationList.add(destinationObject);
  		}
  		return destinationList;
  	}
  
  	/**
  	 * 基于Dozer将对象A的值拷贝到对象B中.
  	 */
  	public static void copy(Object source, Object destinationObject) {
  		dozer.map(source, destinationObject);
  	}
  }