Redirecting from dialog to web script

As we transition to the new Hyland Community, some post links may be temporarily disrupted as we finalize redirects. We apologize for the inconvenience and are working to resolve this as quickly as possible. Details.

oltchuva

I have 2 separate working pieces: custom dialog and web script
I want to use properties entered by user in the dialog to add parameters to web script url

In finishImpl method of the dialog i try to redirect to the web script and I get the following error: java.lang.IllegalStateException: Cannot forward after response has been committed

      protected String finishImpl(FacesContext context, String outcome) throws Exception
      {
         ExternalContext externalContext = context.getExternalContext(); 
         HttpServletResponse response =  (HttpServletResponse)externalContext.getResponse(); 
         try { 
            response.sendRedirect("<web_script_url_is_here>");
         } catch (Exception e) { 
         } 
         
         // return the default outcome
         return outcome;
      }
‍‍‍‍‍‍‍‍‍‍‍‍‍

Thank you,
Olga

samuel_penn

Hi Olga,

I don't know anything about how dialogs are implemented in the context of what you're doing, but in the general case of setting HTTP response data from Java (from my experience with basic Servlets), anything which affects the headers has to be done before any output is written back to the client - i.e., setting a redirect has to be the first thing that you do. Given that the method is called finishImpl(), I'm guessing that this is happening last, and some output has already been written to the response buffer by this point, which is why you get that error.

Sam.