FastBeanUtils.java

package com.alibaba.rocketmq.storm.internal.tools;

import net.sf.cglib.beans.BeanCopier;
import net.sf.cglib.core.Converter;
import net.sf.cglib.core.ReflectUtils;

import com.google.common.base.Preconditions;

/**
 * High performance JavaBean attribute copy tool
 * 
 * @author von gosling 2011-12-24 3:58:02
 */
public abstract class FastBeanUtils {
    public static Object copyProperties(Object source, Class<?> target) {
        Preconditions.checkNotNull(source, "Source must not be null!");
        Preconditions.checkNotNull(target, "Target must not be null!");

        Object targetObject = ReflectUtils.newInstance(target);
        BeanCopier beanCopier = BeanCopier.create(source.getClass(), target, false);
        beanCopier.copy(source, targetObject, null);

        return targetObject;
    }

    public static Object copyProperties(Object source, Class<?> target, Converter converter) {
        Preconditions.checkNotNull(source, "Source must not be null");
        Preconditions.checkNotNull(target, "Target must not be null");

        Object targetObject = ReflectUtils.newInstance(target);
        BeanCopier beanCopier = BeanCopier.create(source.getClass(), target, true);
        beanCopier.copy(source, targetObject, converter);

        return targetObject;
    }

    private FastBeanUtils() {
    }
}