myfaces-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From surya giri <suryagiri...@gmail.com>
Subject Re: httpservletrequest to faces servlet issue
Date Mon, 22 Oct 2018 12:55:05 GMT
Thanks for your reply.  The problem I am trying to solve is -  somehow
enhance the MyFaces lifecycle with a feature to skip the browser during
rendering (so user is never actually sent the HttpResponse containing the
rendered jsp) that's why have I have 'doNOtRender' and instead immediately
trigger an HttpServletRequest in the lifecycle to simulate the user
clicking a button in the jsp and submit to faces servlet .

I am trying to actually doing this in ServletExternalContextImpl.dispatch()
method.

Thanks
Asha

On Sat, Oct 20, 2018 at 7:23 PM Hazem Saleh <hazems@apache.org> wrote:

> Hi Surya,
>
> I think the problem is not clear, here are some questions to clarify:
> 1. What does dispatch1(path) refer to do? Can you send the complete class
> code?
> 2. Where do you get NullPointerException?
> 3. Why do you create un-managed thread in dispatch1(path)?
> 4. What do you try to do?
> 5. Do you have the complete source code for this? do you have the code
> uploaded somewhere in a place like GitHub to give a look?
>
> Thanks
>
> On Fri, Oct 19, 2018 at 3:42 PM surya <suryagiri873@gmail.com> wrote:
>
> > If dontRender is set, I do not want to send the response to client,
> > instead I
> > want to create a HttpServletRequest message that matches whatever the
> > browser would normally send when the user clicks save button in test1.jsp
> > and then  send that to the Faces servlet The page is not sent to browser,
> > but I want the same page to be sent with save button clicked . I am
> getting
> > NullPointer exception.
> >
> > public void dispatch1(String path)
> >                 {
> >                         HttpServletRequest request =
> >                             (HttpServletRequest).getRequest();
> >                         boolean dontRender = false;
> >
>  if(request.getSession().getAttribute("dontRender")
> > != null){
> >                                 dontRender =(boolean)
> > request.getSession().getAttribute("dontRender");
> >                         }
> >                         RequestDispatcher requestDispatcher
> >                             = request.getRequestDispatcher(path);
> >                         HttpServletResponse response =
> > (HttpServletResponse)getResponse();
> >                         ServletResponse response = response;
> >
> >                         FacesContext facesContext =
> > FacesContext.getCurrentInstance();
> >
> >
> >
> >
> >                         try
> >                             {
> >                                 if (response.isCommitted())
> >                                     {
> >
> > requestDispatcher.include(request,response);
> >                                     }
> >                                 else
> >                                     {
> >                                          if (!dontRender)
> >                                          {
> >
> >
> >  requestDispatcher.forward(request,response);
> >
> >                                          }
> >                                          else {
> >                                                  // Dont render response
> >
> >                                                  // create a new
> > httpservlet request  with savebutton clicked and send
> > to faces servlet
> >                                                             Runnable
> > runner  = new Runnable() {
> >                                                                public
> void
> > run() {
> >
> >  HttpServletRequest req =
> >
> >           (HttpServletRequest).getRequest();
> >
> >   HttpServletResponse resp =
> > (HttpServletResponse)getResponse();
> >
> > req.setAttribute("Save", "Submit Q");
> >
> > req.setAttribute("action","/test2.jsf");
> >
> >                                                                     try {
> >
> >               req.getRequestDispatcher("test1.jsf").forward(req, resp);
> >
> >
> >       } catch (IOException e) {
> >
> >               // TODO Auto-generated catch block
> >
> >               e.printStackTrace();
> >
> >       } catch (ServletException e) {
> >
> >               // TODO Auto-generated catch block
> >
> >               e.printStackTrace();
> >
> >       }
> >
> >                                                                }
> >                                                             };
> >                                                             Thread thread
> > = new Thread(runner);
> >
>  thread.start();
> >                                                         }
> >
> >                                     }
> >                             }
> >
> >                         catch (ServletException e)
> >                             {
> >                                 e.printStackTrace();
> >                                 throw new FacesException(e);
> >                             }
> >                     }
> >
> >
> >         test1.jsp
> >                 <form name="test1"  action="test2.jsf"
> > enctype="application/x-www-form-urlencoded" method="post" target="">
> >
> >                 <input name="Save" id="Save"  type="submit" value="Submit
> > Q">
> >
> >
> >
> >
> >
> > --
> > Sent from: http://myfaces.10567.n7.nabble.com/MyFaces-Users-f57691.html
> >
>
>
> --
> Hazem Saleh
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message