org.springframework.beans.factory.config.BeanDefinitionHolder#getBeanName ( )源码实例Demo

@Test
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);
	}
}
 

/**
 * Register the given bean definition with the given bean factory.
 * @param definitionHolder the bean definition including name and aliases
 * @param registry the bean factory to register with
 * @throws BeanDefinitionStoreException if registration failed
 */
public static void registerBeanDefinition(
		BeanDefinitionHolder definitionHolder, BeanDefinitionRegistry registry)
		throws BeanDefinitionStoreException {

	// Register bean definition under primary name.
	// 注释 1.17 在 DefaultListableBeanFactory 的 beanDefinitionMap 中添加 bean 定义
	String beanName = definitionHolder.getBeanName();
	registry.registerBeanDefinition(beanName, definitionHolder.getBeanDefinition());

	// Register aliases for bean name, if any.
	String[] aliases = definitionHolder.getAliases();
	if (aliases != null) {
		for (String alias : aliases) {
			registry.registerAlias(beanName, alias);
		}
	}
}
 

/**
 * Register the given bean definition with the given bean factory.
 * @param definitionHolder the bean definition including name and aliases
 * @param registry the bean factory to register with
 * @throws BeanDefinitionStoreException if registration failed
 */
public static void registerBeanDefinition(
		BeanDefinitionHolder definitionHolder, BeanDefinitionRegistry registry)
		throws BeanDefinitionStoreException {

	// Register bean definition under primary name.
	String beanName = definitionHolder.getBeanName();
	registry.registerBeanDefinition(beanName, definitionHolder.getBeanDefinition());

	// Register aliases for bean name, if any.
	String[] aliases = definitionHolder.getAliases();
	if (aliases != null) {
		for (String alias : aliases) {
			registry.registerAlias(beanName, alias);
		}
	}
}
 

@Test
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);
	}
}
 

/**
 * Register the given bean definition with the given bean factory.
 * @param definitionHolder the bean definition including name and aliases
 * @param registry the bean factory to register with
 * @throws BeanDefinitionStoreException if registration failed
 */
public static void registerBeanDefinition(
		BeanDefinitionHolder definitionHolder, BeanDefinitionRegistry registry)
		throws BeanDefinitionStoreException {

	// Register bean definition under primary name.
	String beanName = definitionHolder.getBeanName();
	registry.registerBeanDefinition(beanName, definitionHolder.getBeanDefinition());

	// Register aliases for bean name, if any.
	String[] aliases = definitionHolder.getAliases();
	if (aliases != null) {
		for (String alias : aliases) {
			registry.registerAlias(beanName, alias);
		}
	}
}
 

@Test
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);
	}
}
 

/**
 * Register the given bean definition with the given bean factory.
 * @param definitionHolder the bean definition including name and aliases
 * @param registry the bean factory to register with
 * @throws BeanDefinitionStoreException if registration failed
 */
public static void registerBeanDefinition(
		BeanDefinitionHolder definitionHolder, BeanDefinitionRegistry registry)
		throws BeanDefinitionStoreException {

	// Register bean definition under primary name.
	String beanName = definitionHolder.getBeanName();
	registry.registerBeanDefinition(beanName, definitionHolder.getBeanDefinition());

	// Register aliases for bean name, if any.
	String[] aliases = definitionHolder.getAliases();
	if (aliases != null) {
		for (String alias : aliases) {
			registry.registerAlias(beanName, alias);
		}
	}
}
 

/**
 * Register the given bean definition with the given bean factory.
 * @param definitionHolder the bean definition including name and aliases
 * @param registry the bean factory to register with
 * @throws BeanDefinitionStoreException if registration failed
 */
public static void registerBeanDefinition(
		BeanDefinitionHolder definitionHolder, BeanDefinitionRegistry registry)
		throws BeanDefinitionStoreException {

	// Register bean definition under primary name.
	String beanName = definitionHolder.getBeanName();
	registry.registerBeanDefinition(beanName, definitionHolder.getBeanDefinition());

	// Register aliases for bean name, if any.
	String[] aliases = definitionHolder.getAliases();
	if (aliases != null) {
		for (String aliase : aliases) {
			registry.registerAlias(beanName, aliase);
		}
	}
}
 

/**
     * Registers {@link ServiceBean} from new annotated {@link Service} {@link BeanDefinition} 从新的带注释的服务bean定义注册ServiceBean
     *
     * @param beanDefinitionHolder
     * @param registry
     * @param scanner
     * @see ServiceBean
     * @see BeanDefinition
     */
    private void registerServiceBean(BeanDefinitionHolder beanDefinitionHolder, BeanDefinitionRegistry registry,
                                     DubboClassPathBeanDefinitionScanner scanner) {

        Class<?> beanClass = resolveClass(beanDefinitionHolder);

//        从beanClass上获取@service注解对象
        Service service = findAnnotation(beanClass, Service.class);

//        解析@service注解指定的interface的Class对象
        Class<?> interfaceClass = resolveServiceInterfaceClass(beanClass, service);

        String annotatedServiceBeanName = beanDefinitionHolder.getBeanName();

//        构建service bean定义=》
        AbstractBeanDefinition serviceBeanDefinition =
                buildServiceBeanDefinition(service, interfaceClass, annotatedServiceBeanName);

        // ServiceBean Bean name 默认是接口类的权限定名
        String beanName = generateServiceBeanName(service, interfaceClass, annotatedServiceBeanName);

        if (scanner.checkCandidate(beanName, serviceBeanDefinition)) { // check duplicated candidate bean
            registry.registerBeanDefinition(beanName, serviceBeanDefinition);

            if (logger.isInfoEnabled()) {
                logger.warn("The BeanDefinition[" + serviceBeanDefinition +
                        "] of ServiceBean has been registered with name : " + beanName);
            }

        } else {

            if (logger.isWarnEnabled()) {
                logger.warn("The Duplicated BeanDefinition[" + serviceBeanDefinition +
                        "] of ServiceBean[ bean name : " + beanName +
                        "] was be found , Did @DubboComponentScan scan to same package in many times?");
            }

        }

    }
 

/**
 * registry the bean with FactoryBean
 */
@Override
protected void registerBeanDefinition(BeanDefinitionHolder holder, BeanDefinitionRegistry registry) {
    GenericBeanDefinition definition = (GenericBeanDefinition) holder.getBeanDefinition();
    if (logger.isDebugEnabled()) {
        logger.debug(includeAnn.getSimpleName() + ": Bean with name '" + holder.getBeanName()
                + "' and '" + definition.getBeanClassName() + "' interface");
    }
    if (logger.isDebugEnabled()) {
        logger.debug("Enabling autowire by type for " + factoryBean.getSimpleName() + " with name '" + holder.getBeanName() + "'.");
    }
    definition.setAutowireMode(AbstractBeanDefinition.AUTOWIRE_BY_TYPE);
    // 需要被代理的接口 the interface
    definition.getPropertyValues().add("interfaceClass", definition.getBeanClassName());
    // 配置项
    definition.getPropertyValues().add("propertyResolver", propertyResolver);
    if (requestor != null) {
        definition.getPropertyValues().add("requestor", requestor);
    }
    if (requestPreprocessor != null) {
        definition.getPropertyValues().add("requestPreprocessor", requestPreprocessor);
    }
    if (responseProcessor != null) {
        definition.getPropertyValues().add("responseProcessor", responseProcessor);
    }
    // 获取bean名，注意：获取 BeanName 要在setBeanClass之前，否则BeanName就会被覆盖
    // caution! we nned to getBeanName first before setBeanClass
    String beanName = holder.getBeanName();
    // 将BeanClass设置成Bean工厂
    definition.setBeanClass(factoryBean);
    // 注册Bean
    registry.registerBeanDefinition(beanName, definition);
}
 

/**
 * Generate a scoped proxy for the supplied target bean, registering the target
 * bean with an internal name and setting 'targetBeanName' on the scoped proxy.
 * @param definition the original bean definition
 * @param registry the bean definition registry
 * @param proxyTargetClass whether to create a target class proxy
 * @return the scoped proxy definition
 */
public static BeanDefinitionHolder createScopedProxy(BeanDefinitionHolder definition,
		BeanDefinitionRegistry registry, boolean proxyTargetClass) {

	String originalBeanName = definition.getBeanName();
	BeanDefinition targetDefinition = definition.getBeanDefinition();
	String targetBeanName = getTargetBeanName(originalBeanName);

	// Create a scoped proxy definition for the original bean name,
	// "hiding" the target bean in an internal target definition.
	RootBeanDefinition proxyDefinition = new RootBeanDefinition(ScopedProxyFactoryBean.class);
	proxyDefinition.setDecoratedDefinition(new BeanDefinitionHolder(targetDefinition, targetBeanName));
	proxyDefinition.setOriginatingBeanDefinition(targetDefinition);
	proxyDefinition.setSource(definition.getSource());
	proxyDefinition.setRole(targetDefinition.getRole());

	proxyDefinition.getPropertyValues().add("targetBeanName", targetBeanName);
	if (proxyTargetClass) {
		targetDefinition.setAttribute(AutoProxyUtils.PRESERVE_TARGET_CLASS_ATTRIBUTE, Boolean.TRUE);
		// ScopedProxyFactoryBean's "proxyTargetClass" default is TRUE, so we don't need to set it explicitly here.
	}
	else {
		proxyDefinition.getPropertyValues().add("proxyTargetClass", Boolean.FALSE);
	}

	// Copy autowire settings from original bean definition.
	proxyDefinition.setAutowireCandidate(targetDefinition.isAutowireCandidate());
	proxyDefinition.setPrimary(targetDefinition.isPrimary());
	if (targetDefinition instanceof AbstractBeanDefinition) {
		proxyDefinition.copyQualifiersFrom((AbstractBeanDefinition) targetDefinition);
	}

	// The target bean should be ignored in favor of the scoped proxy.
	targetDefinition.setAutowireCandidate(false);
	targetDefinition.setPrimary(false);

	// Register the target bean as separate bean in the factory.
	registry.registerBeanDefinition(targetBeanName, targetDefinition);

	// Return the scoped proxy definition as primary bean definition
	// (potentially an inner bean).
	return new BeanDefinitionHolder(proxyDefinition, originalBeanName, definition.getAliases());
}
 

public void setBeanDefinitionHolder(BeanDefinitionHolder holder) {
	this.definition = (AbstractBeanDefinition) holder.getBeanDefinition();
	this.beanName = holder.getBeanName();
}
 

/**
 * Generate a scoped proxy for the supplied target bean, registering the target
 * bean with an internal name and setting 'targetBeanName' on the scoped proxy.
 * @param definition the original bean definition
 * @param registry the bean definition registry
 * @param proxyTargetClass whether to create a target class proxy
 * @return the scoped proxy definition
 */
public static BeanDefinitionHolder createScopedProxy(BeanDefinitionHolder definition,
		BeanDefinitionRegistry registry, boolean proxyTargetClass) {

	String originalBeanName = definition.getBeanName();
	BeanDefinition targetDefinition = definition.getBeanDefinition();
	String targetBeanName = getTargetBeanName(originalBeanName);

	// Create a scoped proxy definition for the original bean name,
	// "hiding" the target bean in an internal target definition.
	RootBeanDefinition proxyDefinition = new RootBeanDefinition(ScopedProxyFactoryBean.class);
	proxyDefinition.setDecoratedDefinition(new BeanDefinitionHolder(targetDefinition, targetBeanName));
	proxyDefinition.setOriginatingBeanDefinition(targetDefinition);
	proxyDefinition.setSource(definition.getSource());
	proxyDefinition.setRole(targetDefinition.getRole());

	proxyDefinition.getPropertyValues().add("targetBeanName", targetBeanName);
	if (proxyTargetClass) {
		targetDefinition.setAttribute(AutoProxyUtils.PRESERVE_TARGET_CLASS_ATTRIBUTE, Boolean.TRUE);
		// ScopedProxyFactoryBean's "proxyTargetClass" default is TRUE, so we don't need to set it explicitly here.
	}
	else {
		proxyDefinition.getPropertyValues().add("proxyTargetClass", Boolean.FALSE);
	}

	// Copy autowire settings from original bean definition.
	proxyDefinition.setAutowireCandidate(targetDefinition.isAutowireCandidate());
	proxyDefinition.setPrimary(targetDefinition.isPrimary());
	if (targetDefinition instanceof AbstractBeanDefinition) {
		proxyDefinition.copyQualifiersFrom((AbstractBeanDefinition) targetDefinition);
	}

	// The target bean should be ignored in favor of the scoped proxy.
	targetDefinition.setAutowireCandidate(false);
	targetDefinition.setPrimary(false);

	// Register the target bean as separate bean in the factory.
	registry.registerBeanDefinition(targetBeanName, targetDefinition);

	// Return the scoped proxy definition as primary bean definition
	// (potentially an inner bean).
	return new BeanDefinitionHolder(proxyDefinition, originalBeanName, definition.getAliases());
}
 

public void setBeanDefinitionHolder(BeanDefinitionHolder holder) {
	this.definition = (AbstractBeanDefinition) holder.getBeanDefinition();
	this.beanName = holder.getBeanName();
}
 

public static  BeanDefinitionHolder createSerializableProxy(BeanDefinitionHolder definition,
		BeanDefinitionRegistry registry, boolean proxyTargetClass) {

	String originalBeanName = definition.getBeanName();
	BeanDefinition targetDefinition = definition.getBeanDefinition();

	// Create a scoped proxy definition for the original bean name,
	// "hiding" the target bean in an internal target definition.
	RootBeanDefinition proxyDefinition = new RootBeanDefinition(SerializableProxyFactoryBean.class);
	proxyDefinition.setOriginatingBeanDefinition(definition.getBeanDefinition());
	proxyDefinition.setSource(definition.getSource());
	proxyDefinition.setRole(BeanDefinition.ROLE_INFRASTRUCTURE);

	String targetBeanName = getTargetBeanName(originalBeanName);
	proxyDefinition.getPropertyValues().add("targetBeanName", targetBeanName);

	if (proxyTargetClass) {
		targetDefinition.setAttribute(AutoProxyUtils.PRESERVE_TARGET_CLASS_ATTRIBUTE, Boolean.TRUE);
	}
	else {
		proxyDefinition.getPropertyValues().add("proxyTargetClass", Boolean.FALSE);
	}

	// Copy autowire settings from original bean definition.
	proxyDefinition.setAutowireCandidate(targetDefinition.isAutowireCandidate());
	proxyDefinition.setPrimary(targetDefinition.isPrimary());
	if (targetDefinition instanceof AbstractBeanDefinition) {
		proxyDefinition.copyQualifiersFrom((AbstractBeanDefinition) targetDefinition);
	}
	
	// Set singleton property of FactoryBean
	proxyDefinition.getPropertyValues().add("singleton", !targetDefinition.isPrototype());

	// The target bean should be ignored in favor of the scoped proxy.
	targetDefinition.setAutowireCandidate(false);
	targetDefinition.setPrimary(false);

	// Register the target bean as separate bean in the factory.
	registry.registerBeanDefinition(targetBeanName, targetDefinition);

	// Return the scoped proxy definition as primary bean definition
	// (potentially an inner bean).
	return new BeanDefinitionHolder(proxyDefinition, originalBeanName, definition.getAliases());
}
 

public void setBeanDefinitionHolder(BeanDefinitionHolder holder) {
	this.definition = (AbstractBeanDefinition) holder.getBeanDefinition();
	this.beanName = holder.getBeanName();
}
 

/**
 * Generate a scoped proxy for the supplied target bean, registering the target
 * bean with an internal name and setting 'targetBeanName' on the scoped proxy.
 * @param definition the original bean definition
 * @param registry the bean definition registry
 * @param proxyTargetClass whether to create a target class proxy
 * @return the scoped proxy definition
 */
public static BeanDefinitionHolder createScopedProxy(BeanDefinitionHolder definition,
		BeanDefinitionRegistry registry, boolean proxyTargetClass) {

	String originalBeanName = definition.getBeanName();
	BeanDefinition targetDefinition = definition.getBeanDefinition();
	String targetBeanName = getTargetBeanName(originalBeanName);

	// Create a scoped proxy definition for the original bean name,
	// "hiding" the target bean in an internal target definition.
	RootBeanDefinition proxyDefinition = new RootBeanDefinition(ScopedProxyFactoryBean.class);
	proxyDefinition.setDecoratedDefinition(new BeanDefinitionHolder(targetDefinition, targetBeanName));
	proxyDefinition.setOriginatingBeanDefinition(targetDefinition);
	proxyDefinition.setSource(definition.getSource());
	proxyDefinition.setRole(targetDefinition.getRole());

	proxyDefinition.getPropertyValues().add("targetBeanName", targetBeanName);
	if (proxyTargetClass) {
		targetDefinition.setAttribute(AutoProxyUtils.PRESERVE_TARGET_CLASS_ATTRIBUTE, Boolean.TRUE);
		// ScopedProxyFactoryBean's "proxyTargetClass" default is TRUE, so we don't need to set it explicitly here.
	}
	else {
		proxyDefinition.getPropertyValues().add("proxyTargetClass", Boolean.FALSE);
	}

	// Copy autowire settings from original bean definition.
	proxyDefinition.setAutowireCandidate(targetDefinition.isAutowireCandidate());
	proxyDefinition.setPrimary(targetDefinition.isPrimary());
	if (targetDefinition instanceof AbstractBeanDefinition) {
		proxyDefinition.copyQualifiersFrom((AbstractBeanDefinition) targetDefinition);
	}

	// The target bean should be ignored in favor of the scoped proxy.
	targetDefinition.setAutowireCandidate(false);
	targetDefinition.setPrimary(false);

	// Register the target bean as separate bean in the factory.
	registry.registerBeanDefinition(targetBeanName, targetDefinition);

	// Return the scoped proxy definition as primary bean definition
	// (potentially an inner bean).
	return new BeanDefinitionHolder(proxyDefinition, originalBeanName, definition.getAliases());
}
 

public void setBeanDefinitionHolder(BeanDefinitionHolder holder) {
	this.definition = (AbstractBeanDefinition) holder.getBeanDefinition();
	this.beanName = holder.getBeanName();
}
 

/**
 * Generate a scoped proxy for the supplied target bean, registering the target
 * bean with an internal name and setting 'targetBeanName' on the scoped proxy.
 * @param definition the original bean definition
 * @param registry the bean definition registry
 * @param proxyTargetClass whether to create a target class proxy
 * @return the scoped proxy definition
 */
public static BeanDefinitionHolder createScopedProxy(BeanDefinitionHolder definition,
		BeanDefinitionRegistry registry, boolean proxyTargetClass) {

	String originalBeanName = definition.getBeanName();
	BeanDefinition targetDefinition = definition.getBeanDefinition();
	String targetBeanName = getTargetBeanName(originalBeanName);

	// Create a scoped proxy definition for the original bean name,
	// "hiding" the target bean in an internal target definition.
	RootBeanDefinition proxyDefinition = new RootBeanDefinition(ScopedProxyFactoryBean.class);
	proxyDefinition.setDecoratedDefinition(new BeanDefinitionHolder(targetDefinition, targetBeanName));
	proxyDefinition.setOriginatingBeanDefinition(targetDefinition);
	proxyDefinition.setSource(definition.getSource());
	proxyDefinition.setRole(targetDefinition.getRole());

	proxyDefinition.getPropertyValues().add("targetBeanName", targetBeanName);
	if (proxyTargetClass) {
		targetDefinition.setAttribute(AutoProxyUtils.PRESERVE_TARGET_CLASS_ATTRIBUTE, Boolean.TRUE);
		// ScopedProxyFactoryBean's "proxyTargetClass" default is TRUE, so we don't need to set it explicitly here.
	}
	else {
		proxyDefinition.getPropertyValues().add("proxyTargetClass", Boolean.FALSE);
	}

	// Copy autowire settings from original bean definition.
	proxyDefinition.setAutowireCandidate(targetDefinition.isAutowireCandidate());
	proxyDefinition.setPrimary(targetDefinition.isPrimary());
	if (targetDefinition instanceof AbstractBeanDefinition) {
		proxyDefinition.copyQualifiersFrom((AbstractBeanDefinition) targetDefinition);
	}

	// The target bean should be ignored in favor of the scoped proxy.
	targetDefinition.setAutowireCandidate(false);
	targetDefinition.setPrimary(false);

	// Register the target bean as separate bean in the factory.
	registry.registerBeanDefinition(targetBeanName, targetDefinition);

	// Return the scoped proxy definition as primary bean definition
	// (potentially an inner bean).
	return new BeanDefinitionHolder(proxyDefinition, originalBeanName, definition.getAliases());
}
 

public void setBeanDefinitionHolder(BeanDefinitionHolder holder) {
	this.definition = (AbstractBeanDefinition) holder.getBeanDefinition();
	this.beanName = holder.getBeanName();
}