Hi Pantelis, All,


"The *404* or *Not Found* error
message<http://en.wikipedia.org/wiki/Error_message> is
a HTTP <http://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol> standard
response code <http://en.wikipedia.org/wiki/List_of_HTTP_status_codes>
indicating
that the client <http://en.wikipedia.org/wiki/Web_Browser> was able to
communicate with the server, but the server could not find what was
requested. 404 errors should not be confused with
"server<http://en.wikipedia.org/wiki/Web_server> not
found" or similar errors, in which a connection to the destination server
could not be made at all. A 404 error indicates that the requested resource
may be available again in the future."
http://en.wikipedia.org/wiki/HTTP_404
http://www.ietf.org/rfc/rfc2616.txt

Now if the consensus is to have 200 in case of empty responses, I 'll not
insist of strictly following the HTTP RFC :)

Best regards,
Nina

On 4 May 2011 11:22, chung <chvng at mail.ntua.gr> wrote:

> Hi Martin, All,
>
> I think should be 200, since the request is successful and in fact
> contains the response that corresponds to the request - so everything
> has gone as expected. The fact that it is empty does not raise a 404 in
> my opinion. Think of it from the client side: you have a client method
> like :
>
> listResources(URI uri, SearchParam param)::List<URI> throws
> ServiceInvocationException
>
> What do you expect from this method in case the server returns an empty
> list? I guess the answer is to return an *empty list* and not throw an
> error.
> Error 404 is to be thrown if the request is applied on a non-existing
> resource like http://server.com/asdf?search=test
>
> Best regards,
> Pantelis
>
> On Tue, 2011-05-03 at 14:05 +0200, Martin Guetlein wrote:
>
> > Hello All,
> >
> > when filtering a OpenTox resource list with a search param (e.g.
> > http://apps.ideaconsult.net:8080/ambit2/dataset?search=test),
> > should the status code be 404 (not found), or 200 for an empty list?
> (e.g.
> > http://apps.ideaconsult.net:8080/ambit2/dataset?search=emptylist)
> >
> > I would vote for 200 (more consistent to an un-filtered list of
> resources,
> > e.g. http://apps.ideaconsult.net:8080/ambit2/dataset).
> >
> > (On the other hand, 404 might be more intuitive, e.g.: No, there is no
> > validation for model 120732:
> >
> http://opentox.informatik.uni-freiburg.de/validation?model=http://apps.ideaconsult.net:8080/ambit2/model/130732
> > )
> >
> > Both is fine for me, but we should agree on a common solution.
> >
> > Regards,
> > Martin
> > <http://opentox.informatik.uni-freiburg.de/validation?model=ambit>
> >
>
>
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