Re: [Treebase-devel] reconfiguring the purls

[Rutger V. <rut...@gm...>]

On Thu, Jun 3, 2010 at 6:54 PM, Hilmar Lapp <hl...@ne...> wrote:
>
> On Jun 3, 2010, at 1:36 PM, Rutger Vos wrote:
>
>>> Going from a canonical URI to the implementation URL sounds like a 302 to
>>> me, not a 303.
>>
>> Really? I interpret the examples I've seen as 303, not 302.
>
>
> I think the examples you've seen are for going from the thing URI to the
> information about the thing URL.

Mmmm... yeah, I guess you're right about that.

> So for example, accessing http://treebase.org/phylows/tree/16354 would
> return a 303, with either http://treebase.org/phylows/tree/16354?format=rdf
> or http://treebase.org/phylows/tree/16354?format=html as the Location
> parameter, determined by content negotiation. This one can't be a 301 or
> 302.

Right.

> But why can't the redirection from
> http://purl.org/phylo/treebase/phylows/tree/16354 to
> http://treebase.org/phylows/tree/16354 be a 301 or a 302? They should
> probably also be connected by owl:sameAs. In fact, because they are
> owl:sameAs, shouldn't they be redirected through 301 or 302, because 303
> says "See also". But this is not seeAlso - they are owl:sameAs!

Eh, ok, where would we make that owl:sameAs statement?

> Conversely, going from http://purl.org/phylo/treebase/phylows/tree/16354 to
> http://purl.org/phylo/treebase/phylows/tree/16354?format=rdf would have to
> be a 303, as would going to
> http://treebase.org/phylows/tree/16354?format=rdf have to be - but purl.org
> doesn't actually support those redirects. It just goes to another site, not
> to another representation, or to a site with information "about" the URI
> being redirected.

Sure, but http://purl.org/phylo/treebase/phylows/tree/16354 would be
redirected to the PhyloWSController, which could do the conneg and 303
redirect the client to
http://purl.org/phylo/treebase/phylows/tree/16354?format=rdf, except
the hops from purl to the PhyloWSController wouldn't be 303s.


-- 
Dr. Rutger A. Vos
School of Biological Sciences
Philip Lyle Building, Level 4
University of Reading
Reading
RG6 6BX
United Kingdom
Tel: +44 (0) 118 378 7535
http://www.nexml.org
http://rutgervos.blogspot.com