ProxyTest.java

/*
 * Copyright 1999-2011 Alibaba Group.
 *  
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *  
 *      http://www.apache.org/licenses/LICENSE-2.0
 *  
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.alibaba.dubbo.common.bytecode;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;

import org.junit.Assert;
import org.junit.Test;


import junit.framework.TestCase;
import net.sf.cglib.proxy.Enhancer;
import net.sf.cglib.proxy.MethodInterceptor;
import net.sf.cglib.proxy.MethodProxy;

public class ProxyTest extends TestCase
{
	public void testMain() throws Exception
	{
		Proxy proxy = Proxy.getProxy(ITest.class, ITest.class);
		ITest instance = (ITest)proxy.newInstance(new InvocationHandler(){
			public Object invoke(Object proxy, Method method, Object[] args) throws Throwable
			{
				if( "getName".equals(method.getName()) )
				{
					assertEquals(args.length, 0);
				}
				else if( "setName".equals(method.getName()) )
				{
					assertEquals(args.length, 2);
					assertEquals(args[0], "qianlei");
					assertEquals(args[1], "hello");
				}
				return null;
			}
		});
		
		assertNull(instance.getName());
		instance.setName("qianlei", "hello");
	}

    @Test
    public void testCglibProxy() throws Exception {
        ITest test = (ITest)Proxy.getProxy(ITest.class).newInstance(new InvocationHandler() {

            public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
                System.out.println(method.getName());
                return null;
            }
        });

        Enhancer enhancer = new Enhancer();
        enhancer.setSuperclass(test.getClass());
        enhancer.setCallback(new MethodInterceptor() {

            public Object intercept(Object obj, Method method, Object[] args, MethodProxy proxy) throws Throwable {
                return null;
            }
        });
        try {
            enhancer.create();
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
            Assert.fail();
        }
    }

	public static interface ITest
	{
		String getName();

		void setName(String name, String name2);
	}
}