Spring Framework example source code file (AopUtilsTests.java)

This example Spring Framework source code file (AopUtilsTests.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

aoputilstests, class, defaultpointcutadvisor, exception, nopinterceptor, nopinterceptor, pointcut, pointcut, reflection, staticmethodmatcherpointcut, staticmethodmatcherpointcut, testcase, testpointcut, testpointcut

The Spring Framework AopUtilsTests.java source code

/*
 * Copyright 2002-2007 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.support;

import java.lang.reflect.Method;

import junit.framework.TestCase;

import org.springframework.aop.ClassFilter;
import org.springframework.aop.MethodMatcher;
import org.springframework.aop.Pointcut;
import org.springframework.aop.interceptor.ExposeInvocationInterceptor;
import org.springframework.aop.interceptor.NopInterceptor;
import org.springframework.aop.target.EmptyTargetSource;
import org.springframework.beans.TestBean;
import org.springframework.util.SerializationTestUtils;

/**
 * @author Rod Johnson
 */
public class AopUtilsTests extends TestCase {

	public void testPointcutCanNeverApply() {
		class TestPointcut extends StaticMethodMatcherPointcut {
			public boolean matches(Method method, Class clazzy) {
				return false;
			}
		}
	
		Pointcut no = new TestPointcut();
		assertFalse(AopUtils.canApply(no, Object.class));
	}

	public void testPointcutAlwaysApplies() {
		assertTrue(AopUtils.canApply(new DefaultPointcutAdvisor(new NopInterceptor()), Object.class));
		assertTrue(AopUtils.canApply(new DefaultPointcutAdvisor(new NopInterceptor()), TestBean.class));
	}

	public void testPointcutAppliesToOneMethodOnObject() {
		class TestPointcut extends StaticMethodMatcherPointcut {
			public boolean matches(Method method, Class clazz) {
				return method.getName().equals("hashCode");
			}
		}

		Pointcut pc = new TestPointcut();
	
		// will return true if we're not proxying interfaces
		assertTrue(AopUtils.canApply(pc, Object.class));
	}

	/**
	 * Test that when we serialize and deserialize various canonical instances
	 * of AOP classes, they return the same instance, not a new instance
	 * that's subverted the singleton construction limitation.
	 */
	public void testCanonicalFrameworkClassesStillCanonicalOnDeserialization() throws Exception {
		assertSame(MethodMatcher.TRUE, SerializationTestUtils.serializeAndDeserialize(MethodMatcher.TRUE));
		assertSame(ClassFilter.TRUE, SerializationTestUtils.serializeAndDeserialize(ClassFilter.TRUE));
		assertSame(Pointcut.TRUE, SerializationTestUtils.serializeAndDeserialize(Pointcut.TRUE));
		assertSame(EmptyTargetSource.INSTANCE, SerializationTestUtils.serializeAndDeserialize(EmptyTargetSource.INSTANCE));
		assertSame(Pointcuts.SETTERS, SerializationTestUtils.serializeAndDeserialize(Pointcuts.SETTERS));
		assertSame(Pointcuts.GETTERS, SerializationTestUtils.serializeAndDeserialize(Pointcuts.GETTERS));
		assertSame(ExposeInvocationInterceptor.INSTANCE,
				SerializationTestUtils.serializeAndDeserialize(ExposeInvocationInterceptor.INSTANCE));
	}

}