org.springframework.beans.factory.support.AutowireCandidateQualifier Java Examples

@Test
public void testQualifiedByParentValue() {
	StaticApplicationContext parent = new StaticApplicationContext();
	GenericBeanDefinition parentLarry = new GenericBeanDefinition();
	parentLarry.setBeanClass(Person.class);
	parentLarry.getPropertyValues().add("name", "ParentLarry");
	parentLarry.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "parentLarry"));
	parent.registerBeanDefinition("someLarry", parentLarry);
	GenericBeanDefinition otherLarry = new GenericBeanDefinition();
	otherLarry.setBeanClass(Person.class);
	otherLarry.getPropertyValues().add("name", "OtherLarry");
	otherLarry.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "otherLarry"));
	parent.registerBeanDefinition("someOtherLarry", otherLarry);
	parent.refresh();

	StaticApplicationContext context = new StaticApplicationContext(parent);
	BeanDefinitionReader reader = new XmlBeanDefinitionReader(context);
	reader.loadBeanDefinitions(CONFIG_LOCATION);
	context.registerSingleton("testBean", QualifiedByParentValueTestBean.class);
	context.refresh();
	QualifiedByParentValueTestBean testBean = (QualifiedByParentValueTestBean) context.getBean("testBean");
	Person person = testBean.getLarry();
	assertEquals("ParentLarry", person.getName());
}
 

@Test
public void testObjectFactoryMethodInjectionIntoPrototypeBean() {
	RootBeanDefinition annotatedBeanDefinition = new RootBeanDefinition(ObjectFactoryQualifierMethodInjectionBean.class);
	annotatedBeanDefinition.setScope(BeanDefinition.SCOPE_PROTOTYPE);
	bf.registerBeanDefinition("annotatedBean", annotatedBeanDefinition);
	RootBeanDefinition bd = new RootBeanDefinition(TestBean.class);
	bd.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "testBean"));
	bf.registerBeanDefinition("testBean", bd);
	bf.registerBeanDefinition("testBean2", new RootBeanDefinition(TestBean.class));

	ObjectFactoryQualifierMethodInjectionBean bean = (ObjectFactoryQualifierMethodInjectionBean) bf.getBean("annotatedBean");
	assertSame(bf.getBean("testBean"), bean.getTestBean());
	ObjectFactoryQualifierMethodInjectionBean anotherBean = (ObjectFactoryQualifierMethodInjectionBean) bf.getBean("annotatedBean");
	assertNotSame(anotherBean, bean);
	assertSame(bf.getBean("testBean"), bean.getTestBean());
}
 

@Test
public void testObjectFactoryFieldInjectionIntoPrototypeBean() {
	RootBeanDefinition annotatedBeanDefinition = new RootBeanDefinition(ObjectFactoryQualifierFieldInjectionBean.class);
	annotatedBeanDefinition.setScope(BeanDefinition.SCOPE_PROTOTYPE);
	bf.registerBeanDefinition("annotatedBean", annotatedBeanDefinition);
	RootBeanDefinition bd = new RootBeanDefinition(TestBean.class);
	bd.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "testBean"));
	bf.registerBeanDefinition("testBean", bd);
	bf.registerBeanDefinition("testBean2", new RootBeanDefinition(TestBean.class));

	ObjectFactoryQualifierFieldInjectionBean bean = (ObjectFactoryQualifierFieldInjectionBean) bf.getBean("annotatedBean");
	assertSame(bf.getBean("testBean"), bean.getTestBean());
	ObjectFactoryQualifierFieldInjectionBean anotherBean = (ObjectFactoryQualifierFieldInjectionBean) bf.getBean("annotatedBean");
	assertNotSame(anotherBean, bean);
	assertSame(bf.getBean("testBean"), bean.getTestBean());
}
 

@Test
public void testQualifiedByParentValue() {
	StaticApplicationContext parent = new StaticApplicationContext();
	GenericBeanDefinition parentLarry = new GenericBeanDefinition();
	parentLarry.setBeanClass(Person.class);
	parentLarry.getPropertyValues().add("name", "ParentLarry");
	parentLarry.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "parentLarry"));
	parent.registerBeanDefinition("someLarry", parentLarry);
	GenericBeanDefinition otherLarry = new GenericBeanDefinition();
	otherLarry.setBeanClass(Person.class);
	otherLarry.getPropertyValues().add("name", "OtherLarry");
	otherLarry.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "otherLarry"));
	parent.registerBeanDefinition("someOtherLarry", otherLarry);
	parent.refresh();

	StaticApplicationContext context = new StaticApplicationContext(parent);
	BeanDefinitionReader reader = new XmlBeanDefinitionReader(context);
	reader.loadBeanDefinitions(CONFIG_LOCATION);
	context.registerSingleton("testBean", QualifiedByParentValueTestBean.class);
	context.refresh();
	QualifiedByParentValueTestBean testBean = (QualifiedByParentValueTestBean) context.getBean("testBean");
	Person person = testBean.getLarry();
	assertEquals("ParentLarry", person.getName());
}
 

@Test
public void testObjectFactoryQualifierInjection() {
	DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
	bf.setAutowireCandidateResolver(new QualifierAnnotationAutowireCandidateResolver());
	AutowiredAnnotationBeanPostProcessor bpp = new AutowiredAnnotationBeanPostProcessor();
	bpp.setBeanFactory(bf);
	bf.addBeanPostProcessor(bpp);
	bf.registerBeanDefinition("annotatedBean", new RootBeanDefinition(ObjectFactoryQualifierInjectionBean.class));
	RootBeanDefinition bd = new RootBeanDefinition(TestBean.class);
	bd.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "testBean"));
	bf.registerBeanDefinition("testBean", bd);
	bf.registerBeanDefinition("testBean2", new RootBeanDefinition(TestBean.class));

	ObjectFactoryQualifierInjectionBean bean = (ObjectFactoryQualifierInjectionBean) bf.getBean("annotatedBean");
	assertSame(bf.getBean("testBean"), bean.getTestBean());
	bf.destroySingletons();
}
 

@Test
public void testQualifiedByParentValue() {
	StaticApplicationContext parent = new StaticApplicationContext();
	GenericBeanDefinition parentLarry = new GenericBeanDefinition();
	parentLarry.setBeanClass(Person.class);
	parentLarry.getPropertyValues().add("name", "ParentLarry");
	parentLarry.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "parentLarry"));
	parent.registerBeanDefinition("someLarry", parentLarry);
	GenericBeanDefinition otherLarry = new GenericBeanDefinition();
	otherLarry.setBeanClass(Person.class);
	otherLarry.getPropertyValues().add("name", "OtherLarry");
	otherLarry.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "otherLarry"));
	parent.registerBeanDefinition("someOtherLarry", otherLarry);
	parent.refresh();

	StaticApplicationContext context = new StaticApplicationContext(parent);
	BeanDefinitionReader reader = new XmlBeanDefinitionReader(context);
	reader.loadBeanDefinitions(CONFIG_LOCATION);
	context.registerSingleton("testBean", QualifiedByParentValueTestBean.class);
	context.refresh();
	QualifiedByParentValueTestBean testBean = (QualifiedByParentValueTestBean) context.getBean("testBean");
	Person person = testBean.getLarry();
	assertEquals("ParentLarry", person.getName());
}
 

@Test
public void testObjectFactoryInjection() {
	DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
	bf.setAutowireCandidateResolver(new QualifierAnnotationAutowireCandidateResolver());
	AutowiredAnnotationBeanPostProcessor bpp = new AutowiredAnnotationBeanPostProcessor();
	bpp.setBeanFactory(bf);
	bf.addBeanPostProcessor(bpp);
	bf.registerBeanDefinition("annotatedBean", new RootBeanDefinition(ObjectFactoryQualifierFieldInjectionBean.class));
	RootBeanDefinition bd = new RootBeanDefinition(TestBean.class);
	bd.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "testBean"));
	bf.registerBeanDefinition("testBean", bd);
	bf.registerBeanDefinition("testBean2", new RootBeanDefinition(TestBean.class));

	ObjectFactoryQualifierFieldInjectionBean bean = (ObjectFactoryQualifierFieldInjectionBean) bf.getBean("annotatedBean");
	assertSame(bf.getBean("testBean"), bean.getTestBean());
	bf.destroySingletons();
}
 

@Test
public void testObjectFactoryMethodInjectionIntoPrototypeBean() {
	RootBeanDefinition annotatedBeanDefinition = new RootBeanDefinition(ObjectFactoryQualifierMethodInjectionBean.class);
	annotatedBeanDefinition.setScope(BeanDefinition.SCOPE_PROTOTYPE);
	bf.registerBeanDefinition("annotatedBean", annotatedBeanDefinition);
	RootBeanDefinition bd = new RootBeanDefinition(TestBean.class);
	bd.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "testBean"));
	bf.registerBeanDefinition("testBean", bd);
	bf.registerBeanDefinition("testBean2", new RootBeanDefinition(TestBean.class));

	ObjectFactoryQualifierMethodInjectionBean bean = (ObjectFactoryQualifierMethodInjectionBean) bf.getBean("annotatedBean");
	assertSame(bf.getBean("testBean"), bean.getTestBean());
	ObjectFactoryQualifierMethodInjectionBean anotherBean = (ObjectFactoryQualifierMethodInjectionBean) bf.getBean("annotatedBean");
	assertNotSame(anotherBean, bean);
	assertSame(bf.getBean("testBean"), bean.getTestBean());
}
 

@Test
public void testObjectFactoryFieldInjectionIntoPrototypeBean() {
	RootBeanDefinition annotatedBeanDefinition = new RootBeanDefinition(ObjectFactoryQualifierFieldInjectionBean.class);
	annotatedBeanDefinition.setScope(BeanDefinition.SCOPE_PROTOTYPE);
	bf.registerBeanDefinition("annotatedBean", annotatedBeanDefinition);
	RootBeanDefinition bd = new RootBeanDefinition(TestBean.class);
	bd.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "testBean"));
	bf.registerBeanDefinition("testBean", bd);
	bf.registerBeanDefinition("testBean2", new RootBeanDefinition(TestBean.class));

	ObjectFactoryQualifierFieldInjectionBean bean = (ObjectFactoryQualifierFieldInjectionBean) bf.getBean("annotatedBean");
	assertSame(bf.getBean("testBean"), bean.getTestBean());
	ObjectFactoryQualifierFieldInjectionBean anotherBean = (ObjectFactoryQualifierFieldInjectionBean) bf.getBean("annotatedBean");
	assertNotSame(anotherBean, bean);
	assertSame(bf.getBean("testBean"), bean.getTestBean());
}
 

@Test
public void testObjectFactoryFieldInjectionIntoPrototypeBean() {
	DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
	bf.setAutowireCandidateResolver(new QualifierAnnotationAutowireCandidateResolver());
	AutowiredAnnotationBeanPostProcessor bpp = new AutowiredAnnotationBeanPostProcessor();
	bpp.setBeanFactory(bf);
	bf.addBeanPostProcessor(bpp);
	RootBeanDefinition annotatedBeanDefinition = new RootBeanDefinition(ObjectFactoryQualifierFieldInjectionBean.class);
	annotatedBeanDefinition.setScope(BeanDefinition.SCOPE_PROTOTYPE);
	bf.registerBeanDefinition("annotatedBean", annotatedBeanDefinition);
	RootBeanDefinition bd = new RootBeanDefinition(TestBean.class);
	bd.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "testBean"));
	bf.registerBeanDefinition("testBean", bd);
	bf.registerBeanDefinition("testBean2", new RootBeanDefinition(TestBean.class));

	ObjectFactoryQualifierFieldInjectionBean bean = (ObjectFactoryQualifierFieldInjectionBean) bf.getBean("annotatedBean");
	assertSame(bf.getBean("testBean"), bean.getTestBean());
	ObjectFactoryQualifierFieldInjectionBean anotherBean = (ObjectFactoryQualifierFieldInjectionBean) bf.getBean("annotatedBean");
	assertNotSame(anotherBean, bean);
	assertSame(bf.getBean("testBean"), bean.getTestBean());
}
 

@Test
public void testObjectFactoryMethodInjectionIntoPrototypeBean() {
	DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
	bf.setAutowireCandidateResolver(new QualifierAnnotationAutowireCandidateResolver());
	AutowiredAnnotationBeanPostProcessor bpp = new AutowiredAnnotationBeanPostProcessor();
	bpp.setBeanFactory(bf);
	bf.addBeanPostProcessor(bpp);
	RootBeanDefinition annotatedBeanDefinition = new RootBeanDefinition(ObjectFactoryQualifierMethodInjectionBean.class);
	annotatedBeanDefinition.setScope(BeanDefinition.SCOPE_PROTOTYPE);
	bf.registerBeanDefinition("annotatedBean", annotatedBeanDefinition);
	RootBeanDefinition bd = new RootBeanDefinition(TestBean.class);
	bd.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "testBean"));
	bf.registerBeanDefinition("testBean", bd);
	bf.registerBeanDefinition("testBean2", new RootBeanDefinition(TestBean.class));

	ObjectFactoryQualifierMethodInjectionBean bean = (ObjectFactoryQualifierMethodInjectionBean) bf.getBean("annotatedBean");
	assertSame(bf.getBean("testBean"), bean.getTestBean());
	ObjectFactoryQualifierMethodInjectionBean anotherBean = (ObjectFactoryQualifierMethodInjectionBean) bf.getBean("annotatedBean");
	assertNotSame(anotherBean, bean);
	assertSame(bf.getBean("testBean"), bean.getTestBean());
}
 

private static void registerBindingTargetBeanDefinition(
		Class<? extends Annotation> qualifier, String qualifierValue, String name,
		String bindingTargetInterfaceBeanName,
		String bindingTargetInterfaceMethodName, BeanDefinitionRegistry registry) {

	if (registry.containsBeanDefinition(name)) {
		throw new BeanDefinitionStoreException(bindingTargetInterfaceBeanName, name,
				"bean definition with this name already exists - "
						+ registry.getBeanDefinition(name));
	}

	RootBeanDefinition rootBeanDefinition = new RootBeanDefinition();
	rootBeanDefinition.setFactoryBeanName(bindingTargetInterfaceBeanName);
	rootBeanDefinition.setUniqueFactoryMethodName(bindingTargetInterfaceMethodName);
	rootBeanDefinition
			.addQualifier(new AutowireCandidateQualifier(qualifier, qualifierValue));
	registry.registerBeanDefinition(name, rootBeanDefinition);
}
 

@Test
public void testObjectFactoryQualifierInjection() {
	DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
	AutowiredAnnotationBeanPostProcessor bpp = new AutowiredAnnotationBeanPostProcessor();
	bpp.setBeanFactory(bf);
	bf.addBeanPostProcessor(bpp);
	bf.registerBeanDefinition("annotatedBean", new RootBeanDefinition(ObjectFactoryQualifierFieldInjectionBean.class));
	RootBeanDefinition bd = new RootBeanDefinition(TestBean.class);
	bd.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "testBean"));
	bf.registerBeanDefinition("testBean", bd);

	ObjectFactoryQualifierFieldInjectionBean bean = (ObjectFactoryQualifierFieldInjectionBean) bf.getBean("annotatedBean");
	assertSame(bf.getBean("testBean"), bean.getTestBean());
	bf.destroySingletons();
}
 

/**
 * Parse a qualifier element.
 */
public void parseQualifierElement(Element ele, AbstractBeanDefinition bd) {
	String typeName = ele.getAttribute(TYPE_ATTRIBUTE);
	if (!StringUtils.hasLength(typeName)) {
		error("Tag 'qualifier' must have a 'type' attribute", ele);
		return;
	}
	this.parseState.push(new QualifierEntry(typeName));
	try {
		AutowireCandidateQualifier qualifier = new AutowireCandidateQualifier(typeName);
		qualifier.setSource(extractSource(ele));
		String value = ele.getAttribute(VALUE_ATTRIBUTE);
		if (StringUtils.hasLength(value)) {
			qualifier.setAttribute(AutowireCandidateQualifier.VALUE_KEY, value);
		}
		NodeList nl = ele.getChildNodes();
		for (int i = 0; i < nl.getLength(); i++) {
			Node node = nl.item(i);
			if (isCandidateElement(node) && nodeNameEquals(node, QUALIFIER_ATTRIBUTE_ELEMENT)) {
				Element attributeEle = (Element) node;
				String attributeName = attributeEle.getAttribute(KEY_ATTRIBUTE);
				String attributeValue = attributeEle.getAttribute(VALUE_ATTRIBUTE);
				if (StringUtils.hasLength(attributeName) && StringUtils.hasLength(attributeValue)) {
					BeanMetadataAttribute attribute = new BeanMetadataAttribute(attributeName, attributeValue);
					attribute.setSource(extractSource(attributeEle));
					qualifier.addMetadataAttribute(attribute);
				}
				else {
					error("Qualifier 'attribute' tag must have a 'name' and 'value'", attributeEle);
					return;
				}
			}
		}
		bd.addQualifier(qualifier);
	}
	finally {
		this.parseState.pop();
	}
}
 

/**
 * Check whether the named bean declares a qualifier of the given name.
 * @param qualifier the qualifier to match
 * @param beanName the name of the candidate bean
 * @param bf the {@code BeanFactory} from which to retrieve the named bean
 * @return {@code true} if either the bean definition (in the XML case)
 * or the bean's factory method (in the {@code @Bean} case) defines a matching
 * qualifier value (through {@code <qualifier>} or {@code @Qualifier})
 */
private static boolean isQualifierMatch(String qualifier, String beanName, ConfigurableListableBeanFactory bf) {
	if (bf.containsBean(beanName)) {
		try {
			BeanDefinition bd = bf.getMergedBeanDefinition(beanName);
			if (bd instanceof AbstractBeanDefinition) {
				AbstractBeanDefinition abd = (AbstractBeanDefinition) bd;
				AutowireCandidateQualifier candidate = abd.getQualifier(Qualifier.class.getName());
				if ((candidate != null && qualifier.equals(candidate.getAttribute(AutowireCandidateQualifier.VALUE_KEY))) ||
						qualifier.equals(beanName) || ObjectUtils.containsElement(bf.getAliases(beanName), qualifier)) {
					return true;
				}
			}
			if (bd instanceof RootBeanDefinition) {
				Method factoryMethod = ((RootBeanDefinition) bd).getResolvedFactoryMethod();
				if (factoryMethod != null) {
					Qualifier targetAnnotation = factoryMethod.getAnnotation(Qualifier.class);
					if (targetAnnotation != null && qualifier.equals(targetAnnotation.value())) {
						return true;
					}
				}
			}
		}
		catch (NoSuchBeanDefinitionException ex) {
			// Ignore - can't compare qualifiers for a manually registered singleton object
		}
	}
	return false;
}
 

String registerIfAbsent(final Name name, final Supplier<BeanDefinitionBuilder> factory) {
    return find(name).orElseGet(() -> {
        final AbstractBeanDefinition definition = factory.get().getBeanDefinition();

        name.getId().ifPresent(id ->
                definition.addQualifier(new AutowireCandidateQualifier(Qualifier.class, id)));

        final String beanName = name.toNormalizedString();
        log.debug("Registering [{}]", beanName);
        registry.registerBeanDefinition(beanName, definition);
        return beanName;
    });
}
 

public void registerBean(Class<?> annotatedClass, String name,
		@SuppressWarnings("unchecked") Class<? extends Annotation>... qualifiers) {

	AnnotatedGenericBeanDefinition abd = new AnnotatedGenericBeanDefinition(annotatedClass);
	if (this.conditionEvaluator.shouldSkip(abd.getMetadata())) {
		return;
	}

	ScopeMetadata scopeMetadata = this.scopeMetadataResolver.resolveScopeMetadata(abd);
	abd.setScope(scopeMetadata.getScopeName());
	String beanName = (name != null ? name : this.beanNameGenerator.generateBeanName(abd, this.registry));
	AnnotationConfigUtils.processCommonDefinitionAnnotations(abd);
	if (qualifiers != null) {
		for (Class<? extends Annotation> qualifier : qualifiers) {
			if (Primary.class == qualifier) {
				abd.setPrimary(true);
			}
			else if (Lazy.class == qualifier) {
				abd.setLazyInit(true);
			}
			else {
				abd.addQualifier(new AutowireCandidateQualifier(qualifier));
			}
		}
	}

	BeanDefinitionHolder definitionHolder = new BeanDefinitionHolder(abd, beanName);
	definitionHolder = AnnotationConfigUtils.applyScopedProxyMode(scopeMetadata, definitionHolder, this.registry);
	BeanDefinitionReaderUtils.registerBeanDefinition(definitionHolder, this.registry);
}
 

/**
 * Register a bean from the given bean class, deriving its metadata from
 * class-declared annotations.
 * @param annotatedClass the class of the bean
 * @param name an explicit name for the bean
 * @param qualifiers specific qualifier annotations to consider,
 * in addition to qualifiers at the bean class level
 */
@SuppressWarnings("unchecked")
public void registerBean(Class<?> annotatedClass, String name, Class<? extends Annotation>... qualifiers) {
	AnnotatedGenericBeanDefinition abd = new AnnotatedGenericBeanDefinition(annotatedClass);
	if (this.conditionEvaluator.shouldSkip(abd.getMetadata())) {
		return;
	}

	ScopeMetadata scopeMetadata = this.scopeMetadataResolver.resolveScopeMetadata(abd);
	abd.setScope(scopeMetadata.getScopeName());
	String beanName = (name != null ? name : this.beanNameGenerator.generateBeanName(abd, this.registry));
	AnnotationConfigUtils.processCommonDefinitionAnnotations(abd);
	if (qualifiers != null) {
		for (Class<? extends Annotation> qualifier : qualifiers) {
			if (Primary.class == qualifier) {
				abd.setPrimary(true);
			}
			else if (Lazy.class == qualifier) {
				abd.setLazyInit(true);
			}
			else {
				abd.addQualifier(new AutowireCandidateQualifier(qualifier));
			}
		}
	}

	BeanDefinitionHolder definitionHolder = new BeanDefinitionHolder(abd, beanName);
	definitionHolder = AnnotationConfigUtils.applyScopedProxyMode(scopeMetadata, definitionHolder, this.registry);
	BeanDefinitionReaderUtils.registerBeanDefinition(definitionHolder, this.registry);
}
 

/**
 * Parse a qualifier element.
 */
public void parseQualifierElement(Element ele, AbstractBeanDefinition bd) {
	String typeName = ele.getAttribute(TYPE_ATTRIBUTE);
	if (!StringUtils.hasLength(typeName)) {
		error("Tag 'qualifier' must have a 'type' attribute", ele);
		return;
	}
	this.parseState.push(new QualifierEntry(typeName));
	try {
		AutowireCandidateQualifier qualifier = new AutowireCandidateQualifier(typeName);
		qualifier.setSource(extractSource(ele));
		String value = ele.getAttribute(VALUE_ATTRIBUTE);
		if (StringUtils.hasLength(value)) {
			qualifier.setAttribute(AutowireCandidateQualifier.VALUE_KEY, value);
		}
		NodeList nl = ele.getChildNodes();
		for (int i = 0; i < nl.getLength(); i++) {
			Node node = nl.item(i);
			if (isCandidateElement(node) && nodeNameEquals(node, QUALIFIER_ATTRIBUTE_ELEMENT)) {
				Element attributeEle = (Element) node;
				String attributeName = attributeEle.getAttribute(KEY_ATTRIBUTE);
				String attributeValue = attributeEle.getAttribute(VALUE_ATTRIBUTE);
				if (StringUtils.hasLength(attributeName) && StringUtils.hasLength(attributeValue)) {
					BeanMetadataAttribute attribute = new BeanMetadataAttribute(attributeName, attributeValue);
					attribute.setSource(extractSource(attributeEle));
					qualifier.addMetadataAttribute(attribute);
				}
				else {
					error("Qualifier 'attribute' tag must have a 'name' and 'value'", attributeEle);
					return;
				}
			}
		}
		bd.addQualifier(qualifier);
	}
	finally {
		this.parseState.pop();
	}
}
 

/**
 * Check whether the named bean declares a qualifier of the given name.
 * @param qualifier the qualifier to match
 * @param beanName the name of the candidate bean
 * @param bf the {@code BeanFactory} from which to retrieve the named bean
 * @return {@code true} if either the bean definition (in the XML case)
 * or the bean's factory method (in the {@code @Bean} case) defines a matching
 * qualifier value (through {@code <qualifier>} or {@code @Qualifier})
 */
private static boolean isQualifierMatch(String qualifier, String beanName, ConfigurableListableBeanFactory bf) {
	if (bf.containsBean(beanName)) {
		try {
			BeanDefinition bd = bf.getMergedBeanDefinition(beanName);
			if (bd instanceof AbstractBeanDefinition) {
				AbstractBeanDefinition abd = (AbstractBeanDefinition) bd;
				AutowireCandidateQualifier candidate = abd.getQualifier(Qualifier.class.getName());
				if ((candidate != null && qualifier.equals(candidate.getAttribute(AutowireCandidateQualifier.VALUE_KEY))) ||
						qualifier.equals(beanName) || ObjectUtils.containsElement(bf.getAliases(beanName), qualifier)) {
					return true;
				}
			}
			if (bd instanceof RootBeanDefinition) {
				Method factoryMethod = ((RootBeanDefinition) bd).getResolvedFactoryMethod();
				if (factoryMethod != null) {
					Qualifier targetAnnotation = factoryMethod.getAnnotation(Qualifier.class);
					if (targetAnnotation != null && qualifier.equals(targetAnnotation.value())) {
						return true;
					}
				}
			}
		}
		catch (NoSuchBeanDefinitionException ex) {
			// ignore - can't compare qualifiers for a manually registered singleton object
		}
	}
	return false;
}
 

/**
 * Parse a qualifier element.
 */
public void parseQualifierElement(Element ele, AbstractBeanDefinition bd) {
	String typeName = ele.getAttribute(TYPE_ATTRIBUTE);
	if (!StringUtils.hasLength(typeName)) {
		error("Tag 'qualifier' must have a 'type' attribute", ele);
		return;
	}
	this.parseState.push(new QualifierEntry(typeName));
	try {
		AutowireCandidateQualifier qualifier = new AutowireCandidateQualifier(typeName);
		qualifier.setSource(extractSource(ele));
		String value = ele.getAttribute(VALUE_ATTRIBUTE);
		if (StringUtils.hasLength(value)) {
			qualifier.setAttribute(AutowireCandidateQualifier.VALUE_KEY, value);
		}
		NodeList nl = ele.getChildNodes();
		for (int i = 0; i < nl.getLength(); i++) {
			Node node = nl.item(i);
			if (isCandidateElement(node) && nodeNameEquals(node, QUALIFIER_ATTRIBUTE_ELEMENT)) {
				Element attributeEle = (Element) node;
				String attributeName = attributeEle.getAttribute(KEY_ATTRIBUTE);
				String attributeValue = attributeEle.getAttribute(VALUE_ATTRIBUTE);
				if (StringUtils.hasLength(attributeName) && StringUtils.hasLength(attributeValue)) {
					BeanMetadataAttribute attribute = new BeanMetadataAttribute(attributeName, attributeValue);
					attribute.setSource(extractSource(attributeEle));
					qualifier.addMetadataAttribute(attribute);
				}
				else {
					error("Qualifier 'attribute' tag must have a 'name' and 'value'", attributeEle);
					return;
				}
			}
		}
		bd.addQualifier(qualifier);
	}
	finally {
		this.parseState.pop();
	}
}
 

/**
 * Register a bean from the given bean class, deriving its metadata from
 * class-declared annotations.
 * @param annotatedClass the class of the bean
 * @param name an explicit name for the bean
 * @param supplier a callback for creating an instance of the bean
 * (may be {@code null})
 * @param qualifiers specific qualifier annotations to consider, if any,
 * in addition to qualifiers at the bean class level
 * @param customizers one or more callbacks for customizing the factory's
 * {@link BeanDefinition}, e.g. setting a lazy-init or primary flag
 * @since 5.0
 */
private <T> void doRegisterBean(Class<T> annotatedClass, @Nullable String name,
		@Nullable Class<? extends Annotation>[] qualifiers, @Nullable Supplier<T> supplier,
		@Nullable BeanDefinitionCustomizer[] customizers) {

	AnnotatedGenericBeanDefinition abd = new AnnotatedGenericBeanDefinition(annotatedClass);
	if (this.conditionEvaluator.shouldSkip(abd.getMetadata())) {
		return;
	}

	abd.setInstanceSupplier(supplier);
	ScopeMetadata scopeMetadata = this.scopeMetadataResolver.resolveScopeMetadata(abd);
	abd.setScope(scopeMetadata.getScopeName());
	String beanName = (name != null ? name : this.beanNameGenerator.generateBeanName(abd, this.registry));

	AnnotationConfigUtils.processCommonDefinitionAnnotations(abd);
	if (qualifiers != null) {
		for (Class<? extends Annotation> qualifier : qualifiers) {
			if (Primary.class == qualifier) {
				abd.setPrimary(true);
			}
			else if (Lazy.class == qualifier) {
				abd.setLazyInit(true);
			}
			else {
				abd.addQualifier(new AutowireCandidateQualifier(qualifier));
			}
		}
	}
	if (customizers != null) {
		for (BeanDefinitionCustomizer customizer : customizers) {
			customizer.customize(abd);
		}
	}

	BeanDefinitionHolder definitionHolder = new BeanDefinitionHolder(abd, beanName);
	definitionHolder = AnnotationConfigUtils.applyScopedProxyMode(scopeMetadata, definitionHolder, this.registry);
	BeanDefinitionReaderUtils.registerBeanDefinition(definitionHolder, this.registry);
}
 

@Test
public void testObjectFactoryQualifierInjection() {
	bf.registerBeanDefinition("annotatedBean", new RootBeanDefinition(ObjectFactoryQualifierFieldInjectionBean.class));
	RootBeanDefinition bd = new RootBeanDefinition(TestBean.class);
	bd.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "testBean"));
	bf.registerBeanDefinition("testBean", bd);

	ObjectFactoryQualifierFieldInjectionBean bean = (ObjectFactoryQualifierFieldInjectionBean) bf.getBean("annotatedBean");
	assertSame(bf.getBean("testBean"), bean.getTestBean());
}
 

@Test
public void testObjectFactoryInjection() {
	bf.registerBeanDefinition("annotatedBean", new RootBeanDefinition(ObjectFactoryQualifierFieldInjectionBean.class));
	RootBeanDefinition bd = new RootBeanDefinition(TestBean.class);
	bd.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "testBean"));
	bf.registerBeanDefinition("testBean", bd);
	bf.registerBeanDefinition("testBean2", new RootBeanDefinition(TestBean.class));

	ObjectFactoryQualifierFieldInjectionBean bean = (ObjectFactoryQualifierFieldInjectionBean) bf.getBean("annotatedBean");
	assertSame(bf.getBean("testBean"), bean.getTestBean());
}
 

@Test
public void testObjectFactoryQualifierInjection() {
	bf.registerBeanDefinition("annotatedBean", new RootBeanDefinition(ObjectFactoryQualifierInjectionBean.class));
	RootBeanDefinition bd = new RootBeanDefinition(TestBean.class);
	bd.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "testBean"));
	bf.registerBeanDefinition("dependencyBean", bd);
	bf.registerBeanDefinition("dependencyBean2", new RootBeanDefinition(TestBean.class));

	ObjectFactoryQualifierInjectionBean bean = (ObjectFactoryQualifierInjectionBean) bf.getBean("annotatedBean");
	assertSame(bf.getBean("dependencyBean"), bean.getTestBean());
}
 

/**
 * Parse a qualifier element.
 */
public void parseQualifierElement(Element ele, AbstractBeanDefinition bd) {
	String typeName = ele.getAttribute(TYPE_ATTRIBUTE);
	if (!StringUtils.hasLength(typeName)) {
		error("Tag 'qualifier' must have a 'type' attribute", ele);
		return;
	}
	this.parseState.push(new QualifierEntry(typeName));
	try {
		AutowireCandidateQualifier qualifier = new AutowireCandidateQualifier(typeName);
		qualifier.setSource(extractSource(ele));
		String value = ele.getAttribute(VALUE_ATTRIBUTE);
		if (StringUtils.hasLength(value)) {
			qualifier.setAttribute(AutowireCandidateQualifier.VALUE_KEY, value);
		}
		NodeList nl = ele.getChildNodes();
		for (int i = 0; i < nl.getLength(); i++) {
			Node node = nl.item(i);
			if (isCandidateElement(node) && nodeNameEquals(node, QUALIFIER_ATTRIBUTE_ELEMENT)) {
				Element attributeEle = (Element) node;
				String attributeName = attributeEle.getAttribute(KEY_ATTRIBUTE);
				String attributeValue = attributeEle.getAttribute(VALUE_ATTRIBUTE);
				if (StringUtils.hasLength(attributeName) && StringUtils.hasLength(attributeValue)) {
					BeanMetadataAttribute attribute = new BeanMetadataAttribute(attributeName, attributeValue);
					attribute.setSource(extractSource(attributeEle));
					qualifier.addMetadataAttribute(attribute);
				}
				else {
					error("Qualifier 'attribute' tag must have a 'name' and 'value'", attributeEle);
					return;
				}
			}
		}
		bd.addQualifier(qualifier);
	}
	finally {
		this.parseState.pop();
	}
}
 

/**
 * Parse a qualifier element.
 */
public void parseQualifierElement(Element ele, AbstractBeanDefinition bd) {
	String typeName = ele.getAttribute(TYPE_ATTRIBUTE);
	if (!StringUtils.hasLength(typeName)) {
		error("Tag 'qualifier' must have a 'type' attribute", ele);
		return;
	}
	this.parseState.push(new QualifierEntry(typeName));
	try {
		AutowireCandidateQualifier qualifier = new AutowireCandidateQualifier(typeName);
		qualifier.setSource(extractSource(ele));
		String value = ele.getAttribute(VALUE_ATTRIBUTE);
		if (StringUtils.hasLength(value)) {
			qualifier.setAttribute(AutowireCandidateQualifier.VALUE_KEY, value);
		}
		NodeList nl = ele.getChildNodes();
		for (int i = 0; i < nl.getLength(); i++) {
			Node node = nl.item(i);
			if (isCandidateElement(node) && nodeNameEquals(node, QUALIFIER_ATTRIBUTE_ELEMENT)) {
				Element attributeEle = (Element) node;
				String attributeName = attributeEle.getAttribute(KEY_ATTRIBUTE);
				String attributeValue = attributeEle.getAttribute(VALUE_ATTRIBUTE);
				if (StringUtils.hasLength(attributeName) && StringUtils.hasLength(attributeValue)) {
					BeanMetadataAttribute attribute = new BeanMetadataAttribute(attributeName, attributeValue);
					attribute.setSource(extractSource(attributeEle));
					qualifier.addMetadataAttribute(attribute);
				}
				else {
					error("Qualifier 'attribute' tag must have a 'name' and 'value'", attributeEle);
					return;
				}
			}
		}
		bd.addQualifier(qualifier);
	}
	finally {
		this.parseState.pop();
	}
}
 

@Test
public void testObjectFactoryQualifierInjection() {
	bf.registerBeanDefinition("annotatedBean", new RootBeanDefinition(ObjectFactoryQualifierInjectionBean.class));
	RootBeanDefinition bd = new RootBeanDefinition(TestBean.class);
	bd.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "testBean"));
	bf.registerBeanDefinition("dependencyBean", bd);
	bf.registerBeanDefinition("dependencyBean2", new RootBeanDefinition(TestBean.class));

	ObjectFactoryQualifierInjectionBean bean = (ObjectFactoryQualifierInjectionBean) bf.getBean("annotatedBean");
	assertSame(bf.getBean("dependencyBean"), bean.getTestBean());
}
 

/**
 * Register a bean from the given bean class, deriving its metadata from
 * class-declared annotations.
 * @param annotatedClass the class of the bean
 * @param instanceSupplier a callback for creating an instance of the bean
 * (may be {@code null})
 * @param name an explicit name for the bean
 * @param qualifiers specific qualifier annotations to consider, if any,
 * in addition to qualifiers at the bean class level
 * @param definitionCustomizers one or more callbacks for customizing the
 * factory's {@link BeanDefinition}, e.g. setting a lazy-init or primary flag
 * @since 5.0
 */
<T> void doRegisterBean(Class<T> annotatedClass, @Nullable Supplier<T> instanceSupplier, @Nullable String name,
		@Nullable Class<? extends Annotation>[] qualifiers, BeanDefinitionCustomizer... definitionCustomizers) {

	AnnotatedGenericBeanDefinition abd = new AnnotatedGenericBeanDefinition(annotatedClass);
	if (this.conditionEvaluator.shouldSkip(abd.getMetadata())) {
		return;
	}

	abd.setInstanceSupplier(instanceSupplier);
	ScopeMetadata scopeMetadata = this.scopeMetadataResolver.resolveScopeMetadata(abd);
	abd.setScope(scopeMetadata.getScopeName());
	String beanName = (name != null ? name : this.beanNameGenerator.generateBeanName(abd, this.registry));

	AnnotationConfigUtils.processCommonDefinitionAnnotations(abd);
	if (qualifiers != null) {
		for (Class<? extends Annotation> qualifier : qualifiers) {
			if (Primary.class == qualifier) {
				abd.setPrimary(true);
			}
			else if (Lazy.class == qualifier) {
				abd.setLazyInit(true);
			}
			else {
				abd.addQualifier(new AutowireCandidateQualifier(qualifier));
			}
		}
	}
	for (BeanDefinitionCustomizer customizer : definitionCustomizers) {
		customizer.customize(abd);
	}

	BeanDefinitionHolder definitionHolder = new BeanDefinitionHolder(abd, beanName);
	definitionHolder = AnnotationConfigUtils.applyScopedProxyMode(scopeMetadata, definitionHolder, this.registry);
	BeanDefinitionReaderUtils.registerBeanDefinition(definitionHolder, this.registry);
}
 

@Test
public void testObjectFactoryQualifierInjection() {
	bf.registerBeanDefinition("annotatedBean", new RootBeanDefinition(ObjectFactoryQualifierFieldInjectionBean.class));
	RootBeanDefinition bd = new RootBeanDefinition(TestBean.class);
	bd.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "testBean"));
	bf.registerBeanDefinition("testBean", bd);

	ObjectFactoryQualifierFieldInjectionBean bean = (ObjectFactoryQualifierFieldInjectionBean) bf.getBean("annotatedBean");
	assertSame(bf.getBean("testBean"), bean.getTestBean());
}