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package org.xson.tangyuan.util;

import java.lang.reflect.Method;

import net.sf.cglib.proxy.Enhancer;
import net.sf.cglib.proxy.MethodInterceptor;
import net.sf.cglib.proxy.MethodProxy;

public class CglibProxy implements MethodInterceptor {

	private Enhancer enhancer = new Enhancer();

	public Object getProxy(Class clazz) {
		// 设置需要创建子类的类
		enhancer.setSuperclass(clazz);
		enhancer.setCallback(this);
		// 通过字节码技术动态创建子类实例
		return enhancer.create();
	}

	@Override
	public Object intercept(Object obj, Method method, Object[] args, MethodProxy proxy) throws Throwable {
		// System.out.println("前置代理: " + method.getName());
		// 通过代理类调用父类中的方法
		Object result = proxy.invokeSuper(obj, args);
		// System.out.println("后置代理: " + method.getName());
		return result;
	}
}