/*
   * Registers a subcontext with red5
   */
  public void registerSubContext(String webAppKey) {
    // get the sub contexts - servlet context
    ServletContext ctx = servletContext.getContext(webAppKey);
    if (ctx == null) {
      ctx = servletContext;
    }
    ContextLoader loader = new ContextLoader();
    ConfigurableWebApplicationContext appCtx =
        (ConfigurableWebApplicationContext) loader.initWebApplicationContext(ctx);
    appCtx.setParent(applicationContext);
    appCtx.refresh();

    ctx.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, appCtx);

    ConfigurableBeanFactory appFactory = appCtx.getBeanFactory();

    logger.debug("About to grab Webcontext bean for " + webAppKey);
    Context webContext = (Context) appCtx.getBean("web.context");
    webContext.setCoreBeanFactory(parentFactory);
    webContext.setClientRegistry(clientRegistry);
    webContext.setServiceInvoker(globalInvoker);
    webContext.setScopeResolver(globalResolver);
    webContext.setMappingStrategy(globalStrategy);

    WebScope scope = (WebScope) appFactory.getBean("web.scope");
    scope.setServer(server);
    scope.setParent(global);
    scope.register();
    scope.start();

    // register the context so we dont try to reinitialize it
    registeredContexts.add(ctx);
  }
  protected void configureAndRefreshWebApplicationContext(ConfigurableWebApplicationContext wac) {
    if (ObjectUtils.identityToString(wac).equals(wac.getId())) {
      // The application context id is still set to its original default value
      // -> assign a more useful id based on available information
      if (this.contextId != null) {
        wac.setId(this.contextId);
      } else {
        // Generate default id...
        wac.setId(
            ConfigurableWebApplicationContext.APPLICATION_CONTEXT_ID_PREFIX
                + ObjectUtils.getDisplayString(getServletContext().getContextPath())
                + "/"
                + getServletName());
      }
    }

    wac.setServletContext(getServletContext());
    wac.setServletConfig(getServletConfig());
    wac.setNamespace(getNamespace());
    wac.addApplicationListener(new SourceFilteringListener(wac, new ContextRefreshListener()));

    // The wac environment's #initPropertySources will be called in any case when the context
    // is refreshed; do it eagerly here to ensure servlet property sources are in place for
    // use in any post-processing or initialization that occurs below prior to #refresh
    ConfigurableEnvironment env = wac.getEnvironment();
    if (env instanceof ConfigurableWebEnvironment) {
      ((ConfigurableWebEnvironment) env)
          .initPropertySources(getServletContext(), getServletConfig());
    }

    postProcessWebApplicationContext(wac);
    applyInitializers(wac);
    wac.refresh();
  }