Spring Framework example source code file (AopProxyUtilsTests.java)

This example Spring Framework source code file (AopProxyUtilsTests.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

advisedsupport, advisedsupport, aopproxyutilstests, class, class, illegalargumentexception, invocationhandler, list, object, object, proxyfactory, proxyfactory, reflection, testbean, testcase, util

The Spring Framework AopProxyUtilsTests.java source code

/*
 * Copyright 2002-2006 the original author or authors.
 *
 * 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 org.springframework.aop.framework;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.Arrays;
import java.util.List;

import junit.framework.TestCase;

import org.springframework.aop.SpringProxy;
import org.springframework.beans.ITestBean;
import org.springframework.beans.TestBean;

/**
 * @author Rod Johnson
 */
public class AopProxyUtilsTests extends TestCase {
	
	public void testCompleteProxiedInterfacesWorksWithNull() {
		AdvisedSupport as = new AdvisedSupport();
		Class[] completedInterfaces = AopProxyUtils.completeProxiedInterfaces(as);
		assertEquals(2, completedInterfaces.length);
		List ifaces = Arrays.asList(completedInterfaces);
		assertTrue(ifaces.contains(Advised.class));
		assertTrue(ifaces.contains(SpringProxy.class));
	}
	
	public void testCompleteProxiedInterfacesWorksWithNullOpaque() {
		AdvisedSupport as = new AdvisedSupport();
		as.setOpaque(true);
		Class[] completedInterfaces = AopProxyUtils.completeProxiedInterfaces(as);
		assertEquals(1, completedInterfaces.length);
	}
	
	public void testCompleteProxiedInterfacesAdvisedNotIncluded() {
		AdvisedSupport as = new AdvisedSupport();
		as.addInterface(ITestBean.class);
		as.addInterface(Comparable.class);
		Class[] completedInterfaces = AopProxyUtils.completeProxiedInterfaces(as);
		assertEquals(4, completedInterfaces.length);
		
		// Can't assume ordering for others, so use a list
		List l = Arrays.asList(completedInterfaces);
		assertTrue(l.contains(Advised.class));
		assertTrue(l.contains(ITestBean.class));
		assertTrue(l.contains(Comparable.class));
	}
	
	public void testCompleteProxiedInterfacesAdvisedIncluded() {
		AdvisedSupport as = new AdvisedSupport();
		as.addInterface(ITestBean.class);
		as.addInterface(Comparable.class);
		as.addInterface(Advised.class);
		Class[] completedInterfaces = AopProxyUtils.completeProxiedInterfaces(as);
		assertEquals(4, completedInterfaces.length);
		
		// Can't assume ordering for others, so use a list
		List l = Arrays.asList(completedInterfaces);
		assertTrue(l.contains(Advised.class));
		assertTrue(l.contains(ITestBean.class));
		assertTrue(l.contains(Comparable.class));
	}
	
	public void testCompleteProxiedInterfacesAdvisedNotIncludedOpaque() {
		AdvisedSupport as = new AdvisedSupport();
		as.setOpaque(true);
		as.addInterface(ITestBean.class);
		as.addInterface(Comparable.class);
		Class[] completedInterfaces = AopProxyUtils.completeProxiedInterfaces(as);
		assertEquals(3, completedInterfaces.length);
		
		// Can't assume ordering for others, so use a list
		List l = Arrays.asList(completedInterfaces);
		assertFalse(l.contains(Advised.class));
		assertTrue(l.contains(ITestBean.class));
		assertTrue(l.contains(Comparable.class));
	}

	public void testProxiedUserInterfacesWithSingleInterface() {
		ProxyFactory pf = new ProxyFactory();
		pf.setTarget(new TestBean());
		pf.addInterface(ITestBean.class);
		Object proxy = pf.getProxy();
		Class[] userInterfaces = AopProxyUtils.proxiedUserInterfaces(proxy);
		assertEquals(1, userInterfaces.length);
		assertEquals(ITestBean.class, userInterfaces[0]);
	}

	public void testProxiedUserInterfacesWithMultipleInterfaces() {
		ProxyFactory pf = new ProxyFactory();
		pf.setTarget(new TestBean());
		pf.addInterface(ITestBean.class);
		pf.addInterface(Comparable.class);
		Object proxy = pf.getProxy();
		Class[] userInterfaces = AopProxyUtils.proxiedUserInterfaces(proxy);
		assertEquals(2, userInterfaces.length);
		assertEquals(ITestBean.class, userInterfaces[0]);
		assertEquals(Comparable.class, userInterfaces[1]);
	}

	public void testProxiedUserInterfacesWithNoInterface() {
		Object proxy = Proxy.newProxyInstance(getClass().getClassLoader(), new Class[0],
				new InvocationHandler() {
					public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
						return null;
					}
				});
		try {
			Class[] userInterfaces = AopProxyUtils.proxiedUserInterfaces(proxy);
			fail("Should have thrown IllegalArgumentException");
		}
		catch (IllegalArgumentException ex) {
			// expected
		}
	}

}