/** @return true if portlet mode. */
 private boolean isPortletMode() {
   if (logger.isDebugEnabled()) {
     logger.debug("Mode detected in Application");
   }
   FacesContext fc = FacesContext.getCurrentInstance();
   portletMode = ExternalContextUtils.isPortlet(fc.getExternalContext());
   if (logger.isDebugEnabled()) {
     if (portletMode) {
       logger.debug("Portlet mode detected");
     } else {
       logger.debug("Servlet mode detected");
     }
   }
   return portletMode;
 }