defaultlistablebeanfactorytests.java

spring的源代码

/*
 * 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.beans.factory;

import java.text.NumberFormat;
import java.util.Arrays;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;

import junit.framework.TestCase;

import org.springframework.aop.interceptor.SideEffectBean;
import org.springframework.beans.BeansException;
import org.springframework.beans.ITestBean;
import org.springframework.beans.MutablePropertyValues;
import org.springframework.beans.NestedTestBean;
import org.springframework.beans.PropertyValue;
import org.springframework.beans.TestBean;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.beans.factory.config.ConstructorArgumentValues;
import org.springframework.beans.factory.config.RuntimeBeanReference;
import org.springframework.beans.factory.support.AbstractBeanFactory;
import org.springframework.beans.factory.support.ChildBeanDefinition;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
import org.springframework.beans.factory.support.PropertiesBeanDefinitionReader;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.beans.factory.xml.ConstructorDependenciesBean;
import org.springframework.beans.factory.xml.DependenciesBean;
import org.springframework.beans.propertyeditors.CustomNumberEditor;

/**
 * Tests properties population and autowire behavior.
 *
 * @author Rod Johnson
 * @author Juergen Hoeller
 */
public class DefaultListableBeanFactoryTests extends TestCase {

	public void testUnreferencedSingletonWasInstantiated() {
		KnowsIfInstantiated.clearInstantiationRecord();
		DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
		Properties p = new Properties();
		p.setProperty("x1.(class)", KnowsIfInstantiated.class.getName());
		assertTrue("singleton not instantiated", !KnowsIfInstantiated.wasInstantiated());
		(new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
		lbf.preInstantiateSingletons();
		assertTrue("singleton was instantiated", KnowsIfInstantiated.wasInstantiated());
	}

	public void testLazyInitialization() {
		KnowsIfInstantiated.clearInstantiationRecord();
		DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
		Properties p = new Properties();
		p.setProperty("x1.(class)", KnowsIfInstantiated.class.getName());
		p.setProperty("x1.(lazy-init)", "true");
		assertTrue("singleton not instantiated", !KnowsIfInstantiated.wasInstantiated());
		(new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
		assertTrue("singleton not instantiated", !KnowsIfInstantiated.wasInstantiated());
		lbf.preInstantiateSingletons();

		assertTrue("singleton not instantiated", !KnowsIfInstantiated.wasInstantiated());
		lbf.getBean("x1");
		assertTrue("singleton was instantiated", KnowsIfInstantiated.wasInstantiated());
	}

	public void testFactoryBeanDidNotCreatePrototype() {
		DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
		Properties p = new Properties();
		p.setProperty("x1.(class)", DummyFactory.class.getName());
		// Reset static state
		DummyFactory.reset();
		p.setProperty("x1.singleton", "false");
		assertTrue("prototype not instantiated", !DummyFactory.wasPrototypeCreated());
		(new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
		assertTrue("prototype not instantiated", !DummyFactory.wasPrototypeCreated());
		assertEquals(TestBean.class, lbf.getType("x1"));
		lbf.preInstantiateSingletons();

		assertTrue("prototype not instantiated", !DummyFactory.wasPrototypeCreated());
		lbf.getBean("x1");
		assertEquals(TestBean.class, lbf.getType("x1"));
		assertTrue("prototype was instantiated", DummyFactory.wasPrototypeCreated());
	}

	public void testEmpty() {
		ListableBeanFactory lbf = new DefaultListableBeanFactory();
		assertTrue("No beans defined --> array != null", lbf.getBeanDefinitionNames() != null);
		assertTrue("No beans defined after no arg constructor", lbf.getBeanDefinitionNames().length == 0);
		assertTrue("No beans defined after no arg constructor", lbf.getBeanDefinitionCount() == 0);
	}

	public void testEmptyPropertiesPopulation() {
		DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
		Properties p = new Properties();
		(new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
		assertTrue("No beans defined after ignorable invalid", lbf.getBeanDefinitionCount() == 0);
	}

	public void testHarmlessIgnorableRubbish() {
		DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
		Properties p = new Properties();
		p.setProperty("foo", "bar");
		p.setProperty("qwert", "er");
		(new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p, "test");
		assertTrue("No beans defined after harmless ignorable rubbish", lbf.getBeanDefinitionCount() == 0);
	}

	public void testPropertiesPopulationWithNullPrefix() {
		DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
		Properties p = new Properties();
		p.setProperty("test.(class)", "org.springframework.beans.TestBean");
		p.setProperty("test.name", "Tony");
		p.setProperty("test.age", "48");
		//p.setProperty("
		int count = (new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
		assertTrue("1 beans registered, not " + count, count == 1);
		testSingleTestBean(lbf);
	}

	public void testPropertiesPopulationWithPrefix() {
		String PREFIX = "beans.";
		DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
		Properties p = new Properties();
		p.setProperty(PREFIX + "test.(class)", "org.springframework.beans.TestBean");
		p.setProperty(PREFIX + "test.name", "Tony");
		p.setProperty(PREFIX + "test.age", "48");
		//p.setProperty("
		int count = (new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p, PREFIX);
		assertTrue("1 beans registered, not " + count, count == 1);
		testSingleTestBean(lbf);
	}

	public void testSimpleReference() {
		String PREFIX = "beans.";
		DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
		Properties p = new Properties();

		p.setProperty(PREFIX + "rod.(class)", "org.springframework.beans.TestBean");
		p.setProperty(PREFIX + "rod.name", "Rod");

		p.setProperty(PREFIX + "kerry.(class)", "org.springframework.beans.TestBean");
		p.setProperty(PREFIX + "kerry.name", "Kerry");
		p.setProperty(PREFIX + "kerry.age", "35");
		p.setProperty(PREFIX + "kerry.spouse(ref)", "rod");

		int count = (new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p, PREFIX);
		assertTrue("2 beans registered, not " + count, count == 2);

		TestBean kerry = (TestBean) lbf.getBean("kerry", TestBean.class);
		assertTrue("Kerry name is Kerry", "Kerry".equals(kerry.getName()));
		ITestBean spouse = kerry.getSpouse();
		assertTrue("Kerry spouse is non null", spouse != null);
		assertTrue("Kerry spouse name is Rod", "Rod".equals(spouse.getName()));
	}

	public void testPropertiesWithDotsInKey() {
		DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
		Properties p = new Properties();

		p.setProperty("tb.(class)", "org.springframework.beans.TestBean");
		p.setProperty("tb.someMap[my.key]", "my.value");

		int count = (new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
		assertTrue("1 beans registered, not " + count, count == 1);
		assertEquals(1, lbf.getBeanDefinitionCount());

		TestBean tb = (TestBean) lbf.getBean("tb", TestBean.class);
		assertEquals("my.value", tb.getSomeMap().get("my.key"));
	}

	public void testUnresolvedReference() {
		String PREFIX = "beans.";
		DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
		Properties p = new Properties();

		try {
			p.setProperty(PREFIX + "kerry.(class)", "org.springframework.beans.TestBean");
			p.setProperty(PREFIX + "kerry.name", "Kerry");
			p.setProperty(PREFIX + "kerry.age", "35");
			p.setProperty(PREFIX + "kerry.spouse(ref)", "rod");

			(new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p, PREFIX);

			lbf.getBean("kerry");
			fail ("Unresolved reference should have been detected");
		}
		catch (BeansException ex) {
			// cool
		}
	}

	public void testSelfReference() {
		DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("spouse", new RuntimeBeanReference("self"));
		lbf.registerBeanDefinition("self", new RootBeanDefinition(TestBean.class, pvs));
		TestBean self = (TestBean) lbf.getBean("self");
		assertEquals(self, self.getSpouse());
	}

	public void testPrototype() {
		DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
		Properties p = new Properties();
		p.setProperty("kerry.(class)", "org.springframework.beans.TestBean");
		p.setProperty("kerry.age", "35");
		(new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
		TestBean kerry1 = (TestBean) lbf.getBean("kerry");
		TestBean kerry2 = (TestBean) lbf.getBean("kerry");
		assertTrue("Non null", kerry1 != null);
		assertTrue("Singletons equal", kerry1 == kerry2);

		lbf = new DefaultListableBeanFactory();
		p = new Properties();
		p.setProperty("kerry.(class)", "org.springframework.beans.TestBean");
		p.setProperty("kerry.(singleton)", "false");
		p.setProperty("kerry.age", "35");
		(new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
		kerry1 = (TestBean) lbf.getBean("kerry");
		kerry2 = (TestBean) lbf.getBean("kerry");
		assertTrue("Non null", kerry1 != null);
		assertTrue("Prototypes NOT equal", kerry1 != kerry2);

		lbf = new DefaultListableBeanFactory();
		p = new Properties();
		p.setProperty("kerry.(class)", "org.springframework.beans.TestBean");
		p.setProperty("kerry.(singleton)", "true");
		p.setProperty("kerry.age", "35");
		(new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
		kerry1 = (TestBean) lbf.getBean("kerry");
		kerry2 = (TestBean) lbf.getBean("kerry");
		assertTrue("Non null", kerry1 != null);
		assertTrue("Specified singletons equal", kerry1 == kerry2);
	}

	public void testPrototypeExtendsPrototype() {
		DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
		Properties p = new Properties();
		p.setProperty("wife.(class)", "org.springframework.beans.TestBean");
		p.setProperty("wife.name", "kerry");

		p.setProperty("kerry.(parent)", "wife");
		p.setProperty("kerry.age", "35");
		(new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
		TestBean kerry1 = (TestBean) lbf.getBean("kerry");
		TestBean kerry2 = (TestBean) lbf.getBean("kerry");
		assertEquals("kerry", kerry1.getName());
		assertTrue("Non null", kerry1 != null);
		assertTrue("Singletons equal", kerry1 == kerry2);

		lbf = new DefaultListableBeanFactory();
		p = new Properties();
		p.setProperty("wife.(class)", "org.springframework.beans.TestBean");
		p.setProperty("wife.name", "kerry");
		p.setProperty("wife.(singleton)", "false");
		p.setProperty("kerry.(parent)", "wife");
		p.setProperty("kerry.(singleton)", "false");
		p.setProperty("kerry.age", "35");
		(new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
		assertFalse(lbf.isSingleton("kerry"));
		kerry1 = (TestBean) lbf.getBean("kerry");
		kerry2 = (TestBean) lbf.getBean("kerry");
		assertTrue("Non null", kerry1 != null);
		assertTrue("Prototypes NOT equal", kerry1 != kerry2);

		lbf = new DefaultListableBeanFactory();
		p = new Properties();
		p.setProperty("kerry.(class)", "org.springframework.beans.TestBean");
		p.setProperty("kerry.(singleton)", "true");
		p.setProperty("kerry.age", "35");
		(new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
		kerry1 = (TestBean) lbf.getBean("kerry");
		kerry2 = (TestBean) lbf.getBean("kerry");
		assertTrue("Non null", kerry1 != null);
		assertTrue("Specified singletons equal", kerry1 == kerry2);
	}

	public void testCanReferenceParentBeanFromChildViaAlias() {
		final String PARENTS_ALIAS = "alias";
		final String EXPECTED_NAME = "Juergen";
		final int EXPECTED_AGE = 41;

		RootBeanDefinition parentDefinition = new RootBeanDefinition(TestBean.class);
		parentDefinition.setAbstract(true);
		parentDefinition.getPropertyValues().addPropertyValue("name", EXPECTED_NAME);
		parentDefinition.getPropertyValues().addPropertyValue("age", new Integer(EXPECTED_AGE));

		ChildBeanDefinition childDefinition = new ChildBeanDefinition(PARENTS_ALIAS);

		DefaultListableBeanFactory factory = new DefaultListableBeanFactory();
		factory.registerBeanDefinition("parent", parentDefinition);
		factory.registerBeanDefinition("child", childDefinition);
		factory.registerAlias("parent", PARENTS_ALIAS);

		TestBean child = (TestBean) factory.getBean("child");
		assertEquals(EXPECTED_NAME, child.getName());
		assertEquals(EXPECTED_AGE, child.getAge());
	}

	public void testNameAlreadyBound() {
		DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
		Properties p = new Properties();
		p.setProperty("kerry.(class)", "org.springframework.beans.TestBean");
		p.setProperty("kerry.age", "35");
		(new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
		try {
			(new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
		}
		catch (BeanDefinitionStoreException ex) {
			assertEquals("kerry", ex.getBeanName());
			// expected
		}
	}

	private void testSingleTestBean(ListableBeanFactory lbf) {