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

    private void addListenerAutodetectBeanPostProcessor() {
        if (!(applicationContext instanceof ConfigurableApplicationContext)) {
            log.warn("Cannot autodetect WorkingMemoryListeners; beanFactory is not instanceof ConfigurableApplicationContext: beanFactory.class=" + applicationContext.getClass());
        } else {
            ConfigurableListableBeanFactory beanFactory = ((ConfigurableApplicationContext)applicationContext).getBeanFactory();
            beanFactory.addBeanPostProcessor(new BeanPostProcessor() {
                public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
                    return bean;
                }
                public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
                    if (bean == WorkingMemoryFactoryBean.this) {

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    XmlBeanDefinitionReader xbdr=new XmlBeanDefinitionReader(_factory);
    xbdr.setBeanClassLoader(_appClassLoader);
    xbdr.loadBeanDefinitions(new ClassPathResource(_configPath.toString(), _appClassLoader));


    // install aspects around Spring Bean initialisation...
    _factory.addBeanPostProcessor(new BeanPostProcessor() {
       public Object postProcessBeforeInitialization(Object bean, String name) throws BeansException {
         return beforeInitialization(bean, name);
       }


  public Object postProcessAfterInitialization(Object bean, String name) throws BeansException {

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    internalBeanFactory.copyConfigurationFrom(containingFactory);


    // Filter out BeanPostProcessors that are part of the AOP infrastructure,
    // since those are only meant to apply to beans defined in the original factory.
    for (Iterator it = internalBeanFactory.getBeanPostProcessors().iterator(); it.hasNext();) {
      BeanPostProcessor postProcessor = (BeanPostProcessor) it.next();
      if (postProcessor instanceof AopInfrastructureBean) {
        it.remove();
      }
    }

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


      public Object postProcessAfterInitialization(Object bean, String beanName) {

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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() {
      public Object postProcessBeforeInitialization(Object bean, String beanName) {
        return new TestBean();
      }


      public Object postProcessAfterInitialization(Object bean, String beanName) {

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    m.put("name", "Roderick");
    parent.registerBeanDefinition("rod",
      new RootBeanDefinition(TestBean.class, new MutablePropertyValues(m)));


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

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      // Register the (JDK 1.5 specific) LoadTimeWeaverAwareProcessor.
      try {
        Class ltwapClass = ClassUtils.forName(
            "org.springframework.context.weaving.LoadTimeWeaverAwareProcessor",
            AbstractApplicationContext.class.getClassLoader());
        BeanPostProcessor ltwap = (BeanPostProcessor) BeanUtils.instantiateClass(ltwapClass);
        ((BeanFactoryAware) ltwap).setBeanFactory(beanFactory);
        beanFactory.addBeanPostProcessor(ltwap);
      }
      catch (ClassNotFoundException ex) {
        throw new IllegalStateException("Spring's LoadTimeWeaverAwareProcessor class is not available");

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  /**
   * Register the given BeanPostProcessor beans.
   */
  private void registerBeanPostProcessors(ConfigurableListableBeanFactory beanFactory, List postProcessors) {
    for (Iterator it = postProcessors.iterator(); it.hasNext();) {
      BeanPostProcessor postProcessor = (BeanPostProcessor) it.next();
      beanFactory.addBeanPostProcessor(postProcessor);
    }
  }

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  public Object applyBeanPostProcessorsBeforeInitialization(Object existingBean, String beanName)
      throws BeansException {


    Object result = existingBean;
    for (Iterator it = getBeanPostProcessors().iterator(); it.hasNext();) {
      BeanPostProcessor beanProcessor = (BeanPostProcessor) it.next();
      result = beanProcessor.postProcessBeforeInitialization(result, beanName);
    }
    return result;
  }

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  public Object applyBeanPostProcessorsAfterInitialization(Object existingBean, String beanName)
      throws BeansException {


    Object result = existingBean;
    for (Iterator it = getBeanPostProcessors().iterator(); it.hasNext();) {
      BeanPostProcessor beanProcessor = (BeanPostProcessor) it.next();
      result = beanProcessor.postProcessAfterInitialization(result, beanName);
    }
    return result;
  }

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