Examples of org.springframework.web.context.WebApplicationContext

org.springframework.web.context.WebApplicationContext
Interface to provide configuration for a web application. This is read-only while the application is running, but may be reloaded if the implementation supports this.
This interface adds a getServletContext method to the generic ApplicationContext interface, and defines a well-known application attribute name that the root context must be bound to in the bootstrap process.
Like generic application contexts, web application contexts are hierarchical. There is a single root context per application, while each servlet in the application (including a dispatcher servlet in the MVC framework) has its own child context.
In addition to standard application context lifecycle capabilities, WebApplicationContext implementations need to detect ServletContextAware beans and invoke the setServletContext method accordingly. @author Rod Johnson @author Juergen Hoeller @since January 19, 2001 @see ServletContextAware#setServletContext

     * 
     * @see org.springframework.context.ApplicationContextAware#setApplicationContext(org.springframework.context.ApplicationContext)
     */
    @SuppressWarnings("unchecked")
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        WebApplicationContext webApplicationContext = (WebApplicationContext) applicationContext;
        ServletContext servletContext = webApplicationContext.getServletContext();
        this.blockContexts = (Map<String, String>) servletContext
                .getAttribute(BlockDeploymentServletContextListener.BLOCK_CONTEXT_MAP);
    }

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     *
     * @return ValidatorResources from a ValidatorFactory.
     */
    private ValidatorResources getValidatorResources() {
        // look in servlet beans definition (i.e. action-servlet.xml)
        WebApplicationContext ctx = (WebApplicationContext) pageContext.getRequest()
                .getAttribute(DispatcherServlet.WEB_APPLICATION_CONTEXT_ATTRIBUTE);
        ValidatorFactory factory = null;
        try {
            factory = (ValidatorFactory) BeanFactoryUtils
                    .beanOfTypeIncludingAncestors(ctx, ValidatorFactory.class, true, true);

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    protected void servletInitialized() throws ServletException {
        super.servletInitialized();
        getService().addSessionInitListener(new SessionInitListener() {
            @Override
            public void sessionInit(SessionInitEvent sessionInitEvent) throws ServiceException {
                WebApplicationContext webApplicationContext = WebApplicationContextUtils.getWebApplicationContext(getServletContext());
                SpringAwareTouchKitUIProvider uiProvider = new SpringAwareTouchKitUIProvider(webApplicationContext);
                sessionInitEvent.getSession().addUIProvider(uiProvider);
            }
        });
    }

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    public <T, U extends T> U newClassInstance(AtmosphereFramework framework,
                                               Class<T> classType,
                                               Class<U> classToInstantiate)
            throws InstantiationException, IllegalAccessException {


        WebApplicationContext parent = WebApplicationContextUtils.getWebApplicationContext(framework.getServletContext());
        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
        context.setParent(parent);
        context.register(classToInstantiate);
        context.refresh();
        U t = context.getBean(classToInstantiate);

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  @Test
  public void injectsPagedResourcesAssembler() {


    assumeThat(SpringVersion.getVersion(), startsWith("3.2"));


    WebApplicationContext context = WebTestUtils.createApplicationContext(Config.class);
    SampleController controller = context.getBean(SampleController.class);


    assertThat(controller.assembler, is(notNullValue()));


    PagedResources<Resource<Person>> resources = controller.sample(new PageRequest(1, 1));

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    @Override
    protected void servletInitialized() throws ServletException {
        getService().addSessionInitListener(new SessionInitListener() {
            @Override
            public void sessionInit(SessionInitEvent sessionInitEvent) throws ServiceException {
                WebApplicationContext webApplicationContext = WebApplicationContextUtils.getWebApplicationContext(getServletContext());
                SpringAwareUIProvider uiProvider = new SpringAwareUIProvider(webApplicationContext);
                sessionInitEvent.getSession().addUIProvider(uiProvider);
            }
        });
    }

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    if (logger.isDebugEnabled()) {
      logger.debug("Using session factory '"
          + getSessionFactoryBeanName()
          + "' for OpenSessionInViewFilter");
    }
    WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(getServletContext());
    return (SessionFactory) wac.getBean(getSessionFactoryBeanName(), SessionFactory.class);
  }

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   public <T> Collection<Class<T>> locate(Class<T> clazz)
   {
      Set<Class<T>> result = new LinkedHashSet<Class<T>>();


      // use the Spring API to obtain the WebApplicationContext
      WebApplicationContext context = ContextLoader.getCurrentWebApplicationContext();


      // may be null if Spring hasn't started yet
      if (context != null) {


         // ask spring about SPI implementations
         Map<String, T> beans = context.getBeansOfType(clazz);


         // add the implementations Class objects to the result set
         for (T type : beans.values()) {
            result.add((Class<T>) type.getClass());
         }

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   @Override
   public String getBeanName(Class<?> clazz)
   {


      // try to obtain the WebApplicationContext using ContextLoader
      WebApplicationContext context = ContextLoader.getCurrentWebApplicationContext();
      if (context == null) {
         throw new IllegalStateException("Unable to get current WebApplicationContext");
      }


      // obtain a map of bean names

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     * The bean is resolved by type (org.springmodules.commons.validator.ValidatorFactory).
     *
     * @return ValidatorResources from a ValidatorFactory
     */
    private ValidatorResources getValidatorResources() {
        WebApplicationContext ctx = (WebApplicationContext)
            pageContext.getRequest().getAttribute(DispatcherServlet.WEB_APPLICATION_CONTEXT_ATTRIBUTE);
        if (ctx == null) {
            // look in main application context (i.e. applicationContext.xml)
            ctx = WebApplicationContextUtils.getRequiredWebApplicationContext(pageContext.getServletContext());
        }

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