Re: [Resteasy-developers] problem using @QueryParam annotation with POST and form parameter injection

[Andrew N. <AN...@fa...>]

Regardless of the root cause behind the issues in my post below, for 
future reference we have found a solution, or work around, which consisted 
of placing the Form consuming method first and annotating it with:

        @Consumes("application/x-www-form-urlencoded")

The code is then like:

  @POST
  @Path("/meetings")
  @Consumes("application/x-www-form-urlencoded")
  @Produces("application/xml")
  public MeetingWrapper createMeetingFromForm(@FormParam("institution"
 ) Long institutionId, ....etc).

  @POST
  @Path("/meetings")
  @Produces("application/xml")
  public MeetingWrapper createMeeting(@QueryParam("institution") Long
 institutionId, ....etc).

And the result is what we need: form submission to "/meetings"  is handled 
successfully by the createMeetingFromForm() method whilst a query encoded 
submission is handled by createMeeting().

Andy
Andrew Newton
Research Management Engineering (AlphaMetrics)
FactSet Limited
Broadgate West II, 1 Snowden Street, London EC2A 2DQ
* And...@fa... | ( +44 (0)20 3009 7053

Andrew Newton/FactSet wrote on 01/12/2008 13:47:03:

> problem using @QueryParam annotation with POST and form parameter 
injection
> 
> Andrew Newton 
> 
> to:
> 
> resteasy-developers
> 
> 01/12/2008 13:47
> 
> Hi,
> 
> We're developing some internal integration interfaces using RESTEasy
> 1.0-beta-8 and its cool - thank you.
> 
> However we are experiencing the following difficulty.  Our app. 
> manages meetings, so I'll refer to that type here.
> 
> We have two methods annotated to create meetings, the first with 
@QueryParam:
> 
>  @POST
>  @Path("/meetings")
>  @Produces("application/xml")
>  public MeetingWrapper createMeeting(@QueryParam("institution") Long
> institutionId, ....etc).
> 
> And the second with @FormParam:
> 
>  @POST
>  @Path("/meetingsForm")
>  @Produces("application/xml")
>  public MeetingWrapper createMeetingFromForm(@FormParam("institution"
> ) Long institutionId, ....etc).
> 
> Of course, what we'd like to have is just one such method.  The 
> above are working for test requests such as:
> 
>  MockHttpRequest request = MockHttpRequest
>   .post("/meetingtracker/meetings?institution=" + institutionId, 
....etc).
> 
> And, invoking the second, "meetingsForm",  method:
> 
>  MockHttpRequest request = MockHttpRequest
>   .post("/meetingtracker/meetingsForm");
>  request.addFormHeader("institution", institutionId.toString());
>  ....etc
> 
> So the above examples seem fine.  The problem is that we want to 
> support both query string and URL form parameter injection from 
> POSTed requests with a single signature. 
> 
> As I understand the documentation (for example RESTEasy doc. section
> 5) this should be possible using the @QueryParam annotation alone. 
> So using the above examples, the following should work:
> 
>  MockHttpRequest request = MockHttpRequest
>   .post("/meetingtracker/meetings");
>  request.addFormHeader("institution", institutionId.toString());
>  ....etc
> 
> In other words a single method with  @QueryParam annotation should 
> work for both query string and URL form parameter injection from the 
POST.
> 
> When we execute the above the method invocation occurs but the 
> parameter injection fails for every parameter: they all have the value 
null.
> 
> Any assistance with this will be greatly appreciated.
> 
> Thanks,
> 
> Andy Newton
> Andrew Newton
> Research Management Engineering (AlphaMetrics)
> FactSet Limited
> Broadgate West II, 1 Snowden Street, London EC2A 2DQ
> * And...@fa... | ( +44 (0)20 3009 7053