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

     * auto-injected from request parameter values etc) so that it can be
     * accessed easily from inside JSP EL (or other expression languages in
     * other view technologies).
     */
    protected Map createRequestContextWrapper(final ServletRequest request) {
        final WebApplicationContext context = WebApplicationContextUtils.getWebApplicationContext(servletContext);
        Map wrapper = new AbstractMap() {


            public WebApplicationContext getContext() {
                return context;
            }


            public Object get(Object key) {
                if (key == null) {
                    return null;
                }
                return bindRequestBean(context.getBean(key.toString()), request);
            }


            public Set entrySet() {
                return Collections.EMPTY_SET;
            }

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   * 
   * @param name bean name
   * @return the bean
   */
  protected Object getBean(String name) {
    WebApplicationContext applicationContext = WebApplicationContextUtils.getWebApplicationContext(getServletContext());
    if( applicationContext == null ) {
      throw new IllegalStateException("No Spring web application context found");
    }
    if( !applicationContext.containsBean(name) ) {
      {
        throw new IllegalArgumentException("Spring bean not found: " + name);
      }
    }
    return applicationContext.getBean(name);
  }

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    @Before
    public void setup() throws JspException {
        context = new RenderContext();
        service = createNiceMock(RenderService.class);
        scriptManager = createMock(ScriptManager.class);
        WebApplicationContext wContext = createNiceMock(WebApplicationContext.class);
        expect(wContext.getBean(RenderService.class)).andReturn(service).anyTimes();
        expect(wContext.getBean(ScriptManager.class)).andReturn(scriptManager).anyTimes();
        replay(wContext);
        ServletContext servletContext = createNiceMock(ServletContext.class);
        expect(servletContext.getAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE)).andReturn(wContext).anyTimes();
        replay(servletContext);
        ServletRequest request = new MockHttpServletRequest();

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                            .append("'\n");
                }
                logger.debug("[init] parameters: " + sb);
            }


            WebApplicationContext rootContext = prepareRootApplicationContext();


            if (logger.isInfoEnabled()) {
                logger.info("[init] exits from 'init/rootContext'");
                logger.info("[init] call 'init/module'");
            }

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        return false;
    }


    @Override
    public void destroy() {
        WebApplicationContext rootContext = WebApplicationContextUtils
                .getWebApplicationContext(getServletContext());
        if (rootContext != null) {
            try {
                if (rootContext instanceof AbstractApplicationContext) {
                    ((AbstractApplicationContext) rootContext).close(); // rose.root

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   */
  public WebApplication createApplication(final WicketFilter filter)
  {
    ServletContext sc = filter.getFilterConfig().getServletContext();


    WebApplicationContext ac = WebApplicationContextUtils.getWebApplicationContext(sc);


    if (getContextConfigLocation(filter) != null)
    {
      additionalContext = createWebApplicationContext(ac, filter);
    }

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   * global context has been found
   */
  public static WebApplicationContext getWebApplicationContext(
      ServletRequest request, ServletContext servletContext) throws IllegalStateException {


    WebApplicationContext webApplicationContext = (WebApplicationContext) request.getAttribute(
        DispatcherServlet.WEB_APPLICATION_CONTEXT_ATTRIBUTE);
    if (webApplicationContext == null) {
      if (servletContext == null) {
        throw new IllegalStateException("No WebApplicationContext found: not in a DispatcherServlet request?");
      }

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    }
    if (servletRequest == null && tilesApplicationContext == null) {
      throw new IllegalStateException("SpringBeanPreparerFactory requires either a " +
          "ServletRequest or a ServletTilesApplicationContext to operate on");
    }
    WebApplicationContext webApplicationContext = RequestContextUtils.getWebApplicationContext(
        servletRequest, tilesApplicationContext.getServletContext());
    return getPreparer(name, webApplicationContext);
  }

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   * @throws BeansException if the context couldn't be initialized
   * @see #setContextClass
   * @see #setContextConfigLocation
   */
  protected WebApplicationContext initWebApplicationContext() throws BeansException {
    WebApplicationContext wac = findWebApplicationContext();
    if (wac == null) {
      // No fixed context defined for this servlet - create a local one.
      WebApplicationContext parent =
          WebApplicationContextUtils.getWebApplicationContext(getServletContext());
      wac = createWebApplicationContext(parent);
    }


    if (!this.refreshEventReceived) {

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  protected WebApplicationContext findWebApplicationContext() {
    String attrName = getContextAttribute();
    if (attrName == null) {
      return null;
    }
    WebApplicationContext wac =
        WebApplicationContextUtils.getWebApplicationContext(getServletContext(), attrName);
    if (wac == null) {
      throw new IllegalStateException("No WebApplicationContext found: initializer not registered?");
    }
    return wac;

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