I am actually doing something similar inside a couple of struts 2
applications I've written and I am able to populate the value stack and or
request just fine.

I do the following,

<code>

    /*
     * Interceptor
    */
    public String intercept(ActionInvocation _invocation) throws
Exception {

          MenuContext     menuContext = new MenuContext();

          _invocation.getStack().set("menuContext", menuContext);

          String response = null;

          try {
               response = _invocation.invoke();
          } catch(Exception e){
               ISFLogger.error("Error invoking action",
getClass(), "intercept(ActionInvocation)",e);
               throw e;
          }

          return response;
    }

    /*
     * JSP
     * The menucontext object has a list named "sectionMenu" declared
on it that is being used for iteration.
     */
    <struts:iterator id="statusLink" status="barIteratorStatus" value=
"menuContext.sectionMenu">
          <!-- Do a bunch of stuff -->
    </struts:iterator>

</code>

I really suggst you dont make the ActionContext final. Because the context
changes for each request (its mutable) and making it final is a misleading
statement.

I also suggest you use the value stack and not the session or request, its
just easier to get the information with struts tags when you do.

Matt Filion
CSC - GTS --> Raytheon - ISF
(818) 468-6271
mfilion@(protected)


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"Sarr, Nathan" <nsarr@(protected)>
03/07/2007 08:39 AM
Please respond to
"Struts Users Mailing List" <user@(protected)>


To
<user@(protected)>
cc

Subject
Interceptor + putting information on the request






Hello,



 I am using struts 2.0.6. I wrote an interceptor to use with Acegi
security to place the UserDetails object on the request so I could
access it on my JSP page. However when I tried to access the object on
the page, it was not found.



I then instead placed it on the session using the following which
worked:



[code]

final ActionContext context = invocation.getInvocationContext();

HttpServletRequest request = (HttpServletRequest)
context.get(HTTP_REQUEST);

HttpSession session = request.getSession();



Authentication auth =
SecurityContextHolder.getContext().getAuthentication();

if(auth != null)

{

  if(auth.getPrincipal() instanceof UserDetails)

  {

      IrUser user = (IrUser)auth.getPrincipal();

      session.setAttribute("user", user);

  }

}

return invocation.invoke();

[/code]



I was wondering is there any way to place this information on the
request in an interceptor.



Thanks for the help.

-Nate