Spring Framework example source code file (AbstractApplicationContextTests.java)

This example Spring Framework source code file (AbstractApplicationContextTests.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

acatest, acatest, albert, configurableapplicationcontext, destroyed, exception, exception, myevent, nosuchmessageexception, object, testbean, testbean, testlistener, testlistener, util

The Spring Framework AbstractApplicationContextTests.java source code

/*
 * Copyright 2002-2005 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.context;

import java.util.Locale;

import org.springframework.beans.TestBean;
import org.springframework.beans.factory.AbstractListableBeanFactoryTests;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.LifecycleBean;

/**
 * @author Rod Johnson
 * @author Juergen Hoeller
 */
public abstract class AbstractApplicationContextTests extends AbstractListableBeanFactoryTests {

	/** Must be supplied as XML */
	public static final String TEST_NAMESPACE = "testNamespace";

	protected ConfigurableApplicationContext applicationContext;

	/** Subclass must register this */
	protected TestListener listener = new TestListener();

	protected TestListener parentListener = new TestListener();

	protected void setUp() throws Exception {
		this.applicationContext = createContext();
	}

	protected BeanFactory getBeanFactory() {
		return applicationContext;
	}

	protected ApplicationContext getApplicationContext() {
		return applicationContext;
	}

	/**
	 * Must register a TestListener.
	 * Must register standard beans.
	 * Parent must register rod with name Roderick
	 * and father with name Albert.
	 */
	protected abstract ConfigurableApplicationContext createContext() throws Exception;

	public void testContextAwareSingletonWasCalledBack() throws Exception {
		ACATest aca = (ACATest) applicationContext.getBean("aca");
		assertTrue("has had context set", aca.getApplicationContext() == applicationContext);
		Object aca2 = applicationContext.getBean("aca");
		assertTrue("Same instance", aca == aca2);
		assertTrue("Says is singleton", applicationContext.isSingleton("aca"));
	}

	public void testContextAwarePrototypeWasCalledBack() throws Exception {
		ACATest aca = (ACATest) applicationContext.getBean("aca-prototype");
		assertTrue("has had context set", aca.getApplicationContext() == applicationContext);
		Object aca2 = applicationContext.getBean("aca-prototype");
		assertTrue("NOT Same instance", aca != aca2);
		assertTrue("Says is prototype", !applicationContext.isSingleton("aca-prototype"));
	}

	public void testParentNonNull() {
		assertTrue("parent isn't null", applicationContext.getParent() != null);
	}

	public void testGrandparentNull() {
		assertTrue("grandparent is null", applicationContext.getParent().getParent() == null);
	}

	public void testOverrideWorked() throws Exception {
		TestBean rod = (TestBean) applicationContext.getParent().getBean("rod");
		assertTrue("Parent's name differs", rod.getName().equals("Roderick"));
	}

	public void testGrandparentDefinitionFound() throws Exception {
		TestBean dad = (TestBean) applicationContext.getBean("father");
		assertTrue("Dad has correct name", dad.getName().equals("Albert"));
	}

	public void testGrandparentTypedDefinitionFound() throws Exception {
		TestBean dad = (TestBean) applicationContext.getBean("father", TestBean.class);
		assertTrue("Dad has correct name", dad.getName().equals("Albert"));
	}

	public void testCloseTriggersDestroy() {
		LifecycleBean lb = (LifecycleBean) applicationContext.getBean("lifecycle");
		assertTrue("Not destroyed", !lb.isDestroyed());
		applicationContext.close();
		if (applicationContext.getParent() != null) {
			((ConfigurableApplicationContext) applicationContext.getParent()).close();
		}
		assertTrue("Destroyed", lb.isDestroyed());
		applicationContext.close();
		if (applicationContext.getParent() != null) {
			((ConfigurableApplicationContext) applicationContext.getParent()).close();
		}
		assertTrue("Destroyed", lb.isDestroyed());
	}

	public void testMessageSource() throws NoSuchMessageException {
		assertEquals("message1", applicationContext.getMessage("code1", null, Locale.getDefault()));
		assertEquals("message2", applicationContext.getMessage("code2", null, Locale.getDefault()));

		try {
			applicationContext.getMessage("code0", null, Locale.getDefault());
			fail("looking for code0 should throw a NoSuchMessageException");
		}
		catch (NoSuchMessageException ex) {
			// that's how it should be
		}
	}

	public void testEvents() throws Exception {
		listener.zeroCounter();
		parentListener.zeroCounter();
		assertTrue("0 events before publication", listener.getEventCount() == 0);
		assertTrue("0 parent events before publication", parentListener.getEventCount() == 0);
		this.applicationContext.publishEvent(new MyEvent(this));
		assertTrue("1 events after publication, not " + listener.getEventCount(), listener.getEventCount() == 1);
		assertTrue("1 parent events after publication", parentListener.getEventCount() == 1);
	}

	public void testBeanAutomaticallyHearsEvents() throws Exception {
		//String[] listenerNames = ((ListableBeanFactory) applicationContext).getBeanDefinitionNames(ApplicationListener.class);
		//assertTrue("listeners include beanThatListens", Arrays.asList(listenerNames).contains("beanThatListens"));
		BeanThatListens b = (BeanThatListens) applicationContext.getBean("beanThatListens");
		b.zero();
		assertTrue("0 events before publication", b.getEventCount() == 0);
		this.applicationContext.publishEvent(new MyEvent(this));
		assertTrue("1 events after publication, not " + b.getEventCount(), b.getEventCount() == 1);
	}


	public static class MyEvent extends ApplicationEvent {

		public MyEvent(Object source) {
			super(source);
		}
	}

}