Examples of org.springframework.beans.factory.config.BeanPostProcessor

Package org.springframework.beans.factory.config

Examples of org.springframework.beans.factory.config.BeanPostProcessor

org.springframework.beans.factory.config.BeanPostProcessor
Factory hook that allows for custom modification of new bean instances, e.g. checking for marker interfaces or wrapping them with proxies.
ApplicationContexts can autodetect BeanPostProcessor beans in their bean definitions and apply them to any beans subsequently created. Plain bean factories allow for programmatic registration of post-processors, applying to all beans created through this factory.
Typically, post-processors that populate beans via marker interfaces or the like will implement {@link #postProcessBeforeInitialization}, while post-processors that wrap beans with proxies will normally implement {@link #postProcessAfterInitialization}. @author Juergen Hoeller @since 10.10.2003 @see InstantiationAwareBeanPostProcessor @see DestructionAwareBeanPostProcessor @see ConfigurableBeanFactory#addBeanPostProcessor @see BeanFactoryPostProcessor

   * {@link org.apache.myfaces.orchestra.conversation.ConversationAware} interface.
   */
  public void setBeanFactory(BeanFactory beanFactory) throws BeansException
  {
    ((ConfigurableBeanFactory) beanFactory).addBeanPostProcessor(
      new BeanPostProcessor()
      {
        public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException
        {
          if (bean instanceof ConversationAware)
          {

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     * Include BeanPostProcessor to deal with SCA Annotations in Spring Bean
     */
    private void includeAnnotationProcessors(ConfigurableListableBeanFactory beanFactory) {
        
        // Processor to deal with @Init and @Destroy SCA Annotations
        BeanPostProcessor initDestroyProcessor = new InitDestroyAnnotationProcessor();
        beanFactory.addBeanPostProcessor(initDestroyProcessor);


        // Processor to deal with @Reference SCA Annotations
        ComponentStub component = new ComponentStub(implementation.getComponentTie());
        BeanPostProcessor referenceProcessor = new ReferenceAnnotationProcessor(component);
        beanFactory.addBeanPostProcessor(referenceProcessor);
        
        // Processor to deal with @Property SCA Annotations
        PropertyValueStub pvs = new PropertyValueStub(implementation.getPropertyValueTie());
        BeanPostProcessor propertyProcessor = new PropertyAnnotationProcessor(pvs);
        beanFactory.addBeanPostProcessor(propertyProcessor);
        
        // Processor to deal with @ComponentName SCA Annotations
        BeanPostProcessor componentNameProcessor = new ComponentNameAnnotationProcessor(implementation.getComponentName());
        beanFactory.addBeanPostProcessor(componentNameProcessor);
        
        // Processor to deal with @Constructor SCA Annotations
        BeanPostProcessor constructorProcessor = new ConstructorAnnotationProcessor();
        beanFactory.addBeanPostProcessor(constructorProcessor);         
    }

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     * Include BeanPostProcessor to deal with SCA Annotations in Spring Bean
     */
    private void includeAnnotationProcessors(ConfigurableListableBeanFactory beanFactory) {
        
        // Processor to deal with @Init and @Destroy SCA Annotations
        BeanPostProcessor initDestroyProcessor = new InitDestroyAnnotationProcessor();
        beanFactory.addBeanPostProcessor(initDestroyProcessor);


        // Processor to deal with @Reference SCA Annotations
        ComponentStub component = new ComponentStub(implementation.getComponentTie());
        BeanPostProcessor referenceProcessor = new ReferenceAnnotationProcessor(component);
        beanFactory.addBeanPostProcessor(referenceProcessor);
        
        // Processor to deal with @Property SCA Annotations
        PropertyValueStub pvs = new PropertyValueStub(implementation.getPropertyValueTie());
        BeanPostProcessor propertyProcessor = new PropertyAnnotationProcessor(pvs);
        beanFactory.addBeanPostProcessor(propertyProcessor);
        
        // Processor to deal with @ComponentName SCA Annotations
        BeanPostProcessor componentNameProcessor = new ComponentNameAnnotationProcessor(implementation.getComponentName());
        beanFactory.addBeanPostProcessor(componentNameProcessor);
        
        // Processor to deal with @Constructor SCA Annotations
        BeanPostProcessor constructorProcessor = new ConstructorAnnotationProcessor();
        beanFactory.addBeanPostProcessor(constructorProcessor);         
    }

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    parent.registerBeanDefinition("rod", bd2);


    this.factory = new DefaultListableBeanFactory(parent);
    new XmlBeanDefinitionReader(this.factory).loadBeanDefinitions(
        new ClassPathResource("test.xml", getClass()));
    this.factory.addBeanPostProcessor(new BeanPostProcessor() {
      @Override
      public Object postProcessBeforeInitialization(Object bean, String name) throws BeansException {
        if (bean instanceof TestBean) {
          ((TestBean) bean).setPostProcessed(true);
        }

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    root.setPortletConfig(portletConfig);
    root.setConfigLocations(new String[] {"/org/springframework/web/portlet/context/WEB-INF/applicationContext.xml"});
    root.addBeanFactoryPostProcessor(new BeanFactoryPostProcessor() {
      @Override
      public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
        beanFactory.addBeanPostProcessor(new BeanPostProcessor() {
          @Override
          public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
            if(bean instanceof TestBean) {
              ((TestBean) bean).getFriends().add("myFriend");
            }

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    List<BeanPostProcessor> internalPostProcessors = new ArrayList<BeanPostProcessor>();
    List<String> orderedPostProcessorNames = new ArrayList<String>();
    List<String> nonOrderedPostProcessorNames = new ArrayList<String>();
    for (String ppName : postProcessorNames) {
      if (beanFactory.isTypeMatch(ppName, PriorityOrdered.class)) {
        BeanPostProcessor pp = beanFactory.getBean(ppName, BeanPostProcessor.class);
        priorityOrderedPostProcessors.add(pp);
        if (pp instanceof MergedBeanDefinitionPostProcessor) {
          internalPostProcessors.add(pp);
        }
      }
      else if (beanFactory.isTypeMatch(ppName, Ordered.class)) {
        orderedPostProcessorNames.add(ppName);
      }
      else {
        nonOrderedPostProcessorNames.add(ppName);
      }
    }


    // First, register the BeanPostProcessors that implement PriorityOrdered.
    OrderComparator.sort(priorityOrderedPostProcessors);
    registerBeanPostProcessors(beanFactory, priorityOrderedPostProcessors);


    // Next, register the BeanPostProcessors that implement Ordered.
    List<BeanPostProcessor> orderedPostProcessors = new ArrayList<BeanPostProcessor>();
    for (String ppName : orderedPostProcessorNames) {
      BeanPostProcessor pp = beanFactory.getBean(ppName, BeanPostProcessor.class);
      orderedPostProcessors.add(pp);
      if (pp instanceof MergedBeanDefinitionPostProcessor) {
        internalPostProcessors.add(pp);
      }
    }
    OrderComparator.sort(orderedPostProcessors);
    registerBeanPostProcessors(beanFactory, orderedPostProcessors);


    // Now, register all regular BeanPostProcessors.
    List<BeanPostProcessor> nonOrderedPostProcessors = new ArrayList<BeanPostProcessor>();
    for (String ppName : nonOrderedPostProcessorNames) {
      BeanPostProcessor pp = beanFactory.getBean(ppName, BeanPostProcessor.class);
      nonOrderedPostProcessors.add(pp);
      if (pp instanceof MergedBeanDefinitionPostProcessor) {
        internalPostProcessors.add(pp);
      }
    }

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  @Test
  public void testBeanPostProcessorWithWrappedObjectAndDisposableBean() {
    DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
    RootBeanDefinition bd = new RootBeanDefinition(BeanWithDisposableBean.class);
    lbf.registerBeanDefinition("test", bd);
    lbf.addBeanPostProcessor(new BeanPostProcessor() {
      @Override
      public Object postProcessBeforeInitialization(Object bean, String beanName) {
        return new TestBean();
      }
      @Override

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  @Test
  public void testBeanPostProcessorWithWrappedObjectAndCloseable() {
    DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
    RootBeanDefinition bd = new RootBeanDefinition(BeanWithCloseable.class);
    lbf.registerBeanDefinition("test", bd);
    lbf.addBeanPostProcessor(new BeanPostProcessor() {
      @Override
      public Object postProcessBeforeInitialization(Object bean, String beanName) {
        return new TestBean();
      }
      @Override

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  public void testBeanPostProcessorWithWrappedObjectAndDestroyMethod() {
    DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
    RootBeanDefinition bd = new RootBeanDefinition(BeanWithDestroyMethod.class);
    bd.setDestroyMethodName("close");
    lbf.registerBeanDefinition("test", bd);
    lbf.addBeanPostProcessor(new BeanPostProcessor() {
      @Override
      public Object postProcessBeforeInitialization(Object bean, String beanName) {
        return new TestBean();
      }
      @Override

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  @Test
  public void nullReturningBeanPostProcessor() {
    AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
    context.register(AutowiredConfig.class);
    context.getBeanFactory().addBeanPostProcessor(new BeanPostProcessor() {
      @Override
      public Object postProcessBeforeInitialization(Object bean, String beanName) {
        return (bean instanceof TestBean ? null : bean);
      }
      @Override
      public Object postProcessAfterInitialization(Object bean, String beanName) {
        return bean;
      }
    });
    context.getBeanFactory().addBeanPostProcessor(new BeanPostProcessor() {
      @Override
      public Object postProcessBeforeInitialization(Object bean, String beanName) {
        bean.getClass().getName();
        return bean;
      }

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