Spring Framework example source code file (RequestScopedProxyTests.java)

This example Spring Framework source code file (RequestScopedProxyTests.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

beandefinitionholder, defaultlistablebeanfactory, derivedtestbean, exception, exception, itestbean, mockhttpservletrequest, mockhttpservletrequest, requestattributes, servletrequestattributes, servletrequestattributes, string, testbean, testbean

The Spring Framework RequestScopedProxyTests.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.web.context.request;

import junit.framework.TestCase;

import org.springframework.aop.support.AopUtils;
import org.springframework.beans.DerivedTestBean;
import org.springframework.beans.ITestBean;
import org.springframework.beans.TestBean;
import org.springframework.beans.factory.DummyFactory;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.BeanDefinitionHolder;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
import org.springframework.core.io.ClassPathResource;
import org.springframework.mock.web.MockHttpServletRequest;

/**
 * @author Juergen Hoeller
 */
public class RequestScopedProxyTests extends TestCase {

	private DefaultListableBeanFactory beanFactory;

	protected void setUp() throws Exception {
		this.beanFactory = new DefaultListableBeanFactory();
		this.beanFactory.registerScope("request", new RequestScope());
		XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(this.beanFactory);
		reader.loadBeanDefinitions(new ClassPathResource("requestScopedProxyTests.xml", getClass()));
		this.beanFactory.preInstantiateSingletons();
	}

	public void testGetFromScope() throws Exception {
		String name = "requestScopedObject";
		TestBean bean = (TestBean) this.beanFactory.getBean(name);
		assertTrue(AopUtils.isCglibProxy(bean));

		MockHttpServletRequest request = new MockHttpServletRequest();
		RequestAttributes requestAttributes = new ServletRequestAttributes(request);
		RequestContextHolder.setRequestAttributes(requestAttributes);

		try {
			assertNull(request.getAttribute("scopedTarget." + name));
			assertEquals("scoped", bean.getName());
			assertNotNull(request.getAttribute("scopedTarget." + name));
			assertEquals(TestBean.class, request.getAttribute("scopedTarget." + name).getClass());
			assertEquals("scoped", ((TestBean) request.getAttribute("scopedTarget." + name)).getName());
			assertSame(bean, this.beanFactory.getBean(name));
		}
		finally {
			RequestContextHolder.setRequestAttributes(null);
		}
	}

	public void testGetFromScopeThroughDynamicProxy() throws Exception {
		String name = "requestScopedProxy";
		ITestBean bean = (ITestBean) this.beanFactory.getBean(name);
		assertTrue(AopUtils.isJdkDynamicProxy(bean));

		MockHttpServletRequest request = new MockHttpServletRequest();
		RequestAttributes requestAttributes = new ServletRequestAttributes(request);
		RequestContextHolder.setRequestAttributes(requestAttributes);

		try {
			assertNull(request.getAttribute("scopedTarget." + name));
			assertEquals("scoped", bean.getName());
			assertNotNull(request.getAttribute("scopedTarget." + name));
			assertEquals(TestBean.class, request.getAttribute("scopedTarget." + name).getClass());
			assertEquals("scoped", ((TestBean) request.getAttribute("scopedTarget." + name)).getName());
			assertSame(bean, this.beanFactory.getBean(name));
		}
		finally {
			RequestContextHolder.setRequestAttributes(null);
		}
	}

	public void testDestructionAtRequestCompletion() throws Exception {
		String name = "requestScopedDisposableObject";
		DerivedTestBean bean = (DerivedTestBean) this.beanFactory.getBean(name);
		assertTrue(AopUtils.isCglibProxy(bean));

		MockHttpServletRequest request = new MockHttpServletRequest();
		ServletRequestAttributes requestAttributes = new ServletRequestAttributes(request);
		RequestContextHolder.setRequestAttributes(requestAttributes);

		try {
			assertNull(request.getAttribute("scopedTarget." + name));
			assertEquals("scoped", bean.getName());
			assertNotNull(request.getAttribute("scopedTarget." + name));
			assertEquals(DerivedTestBean.class, request.getAttribute("scopedTarget." + name).getClass());
			assertEquals("scoped", ((TestBean) request.getAttribute("scopedTarget." + name)).getName());
			assertSame(bean, this.beanFactory.getBean(name));

			requestAttributes.requestCompleted();
			assertTrue(bean.wasDestroyed());
		}
		finally {
			RequestContextHolder.setRequestAttributes(null);
		}
	}

	public void testGetFromFactoryBeanInScope() throws Exception {
		String name = "requestScopedFactoryBean";
		TestBean bean = (TestBean) this.beanFactory.getBean(name);
		assertTrue(AopUtils.isCglibProxy(bean));

		MockHttpServletRequest request = new MockHttpServletRequest();
		RequestAttributes requestAttributes = new ServletRequestAttributes(request);
		RequestContextHolder.setRequestAttributes(requestAttributes);

		try {
			assertNull(request.getAttribute("scopedTarget." + name));
			assertEquals(DummyFactory.SINGLETON_NAME, bean.getName());
			assertNotNull(request.getAttribute("scopedTarget." + name));
			assertEquals(DummyFactory.class, request.getAttribute("scopedTarget." + name).getClass());
			assertSame(bean, this.beanFactory.getBean(name));
		}
		finally {
			RequestContextHolder.setRequestAttributes(null);
		}
	}

	public void testGetInnerBeanFromScope() throws Exception {
		TestBean bean = (TestBean) this.beanFactory.getBean("outerBean");
		assertFalse(AopUtils.isAopProxy(bean));
		assertTrue(AopUtils.isCglibProxy(bean.getSpouse()));

		String name = "scopedInnerBean";

		MockHttpServletRequest request = new MockHttpServletRequest();
		RequestAttributes requestAttributes = new ServletRequestAttributes(request);
		RequestContextHolder.setRequestAttributes(requestAttributes);

		try {
			assertNull(request.getAttribute("scopedTarget." + name));
			assertEquals("scoped", bean.getSpouse().getName());
			assertNotNull(request.getAttribute("scopedTarget." + name));
			assertEquals(TestBean.class, request.getAttribute("scopedTarget." + name).getClass());
			assertEquals("scoped", ((TestBean) request.getAttribute("scopedTarget." + name)).getName());
		}
		finally {
			RequestContextHolder.setRequestAttributes(null);
		}
	}

	public void testGetAnonymousInnerBeanFromScope() throws Exception {
		TestBean bean = (TestBean) this.beanFactory.getBean("outerBean");
		assertFalse(AopUtils.isAopProxy(bean));
		assertTrue(AopUtils.isCglibProxy(bean.getSpouse()));

		BeanDefinition beanDef = this.beanFactory.getBeanDefinition("outerBean");
		BeanDefinitionHolder innerBeanDef =
				(BeanDefinitionHolder) beanDef.getPropertyValues().getPropertyValue("spouse").getValue();
		String name = innerBeanDef.getBeanName();

		MockHttpServletRequest request = new MockHttpServletRequest();
		RequestAttributes requestAttributes = new ServletRequestAttributes(request);
		RequestContextHolder.setRequestAttributes(requestAttributes);

		try {
			assertNull(request.getAttribute("scopedTarget." + name));
			assertEquals("scoped", bean.getSpouse().getName());
			assertNotNull(request.getAttribute("scopedTarget." + name));
			assertEquals(TestBean.class, request.getAttribute("scopedTarget." + name).getClass());
			assertEquals("scoped", ((TestBean) request.getAttribute("scopedTarget." + name)).getName());
		}
		finally {
			RequestContextHolder.setRequestAttributes(null);
		}
	}

}