John Goodwin wrote:
Hi,

To follow on from Friday I've now finishing my Southampton Pub data as
linked open data:

http://www.johngoodwin.me.uk/pubs/

Along with the RDF dump there are dereferencable URIs.
www.johngoodwin.me.uk/pubs/id/pub*

Going to
www.johngoodwin.me.uk/pubs/description/pub*

For HTML requests, and

www.johngoodwin.me.uk/pubs/data/pub*

For RDF+XML requests.
All maps are rendered using OS OpenSpace. The site seems to pass the
Vapour test, but comments welcome.

Just to re-emphasise: this is not in anyway related to Ordnance Survey,
although being posted from my work address. Apologies for the scruffy
look of the webpages, but I was more interested in getting the RDF to
work :) No SPARQL query endpoint as yet...maybe one day.
John
.


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John,

I am getting:

curl -I -H "Accept: application/rdf+xml" http://www.johngoodwin.me.uk/pubs/description/pub1
HTTP/1.1 200 OK
Date: Mon, 28 Jul 2008 15:25:49 GMT
Server: Apache/2.2.8 (Unix) mod_ssl/2.2.8 OpenSSL/0.9.7a mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635
Last-Modified: Sun, 27 Jul 2008 15:52:16 GMT
ETag: "1a0322-6ba4-453036415cc00"
Accept-Ranges: bytes
Content-Length: 27556
Content-Type: text/html

I am requesting the RDF/XML representation of the information resource in question via it's URI, but not getting a redirect to the RDF representation at:
<http://www.johngoodwin.me.uk/pubs/data/pub1> .

You're 200 OK in it's current form throws off RDF User Agents such as our RDF Browser [1] and Data Explore extension for Firefox [2] which will do the following:

1. Ask for an RDF/XML representation via Content Negotiation
2. If we don't locate an RDF information resource from step 1; we will scan for <link rel="relevant-predicate" .../>, GRDDL, RDFa
3. Normalize
4. Expose RDF graph

We don't expect a 200 OK for an RDF requests with the resource in question being an HTML representation, so right now, we never get to discover the RDF information resource.

Solution: just 303 to the RDF information resource that matches RDF representation request.

Then I should see: http://tinyurl.com/5he54t
by starting at: http://www.johngoodwin.me.uk/pubs/description/pub1 instead of what I see currently at: http://tinyurl.com/6lkuaj

Links:

1. http://demo.openlinksw.com/rdfbrowser2
2. https://addons.mozilla.org/en-US/firefox/addon/8062

--


Regards,

Kingsley Idehen       Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO OpenLink Software Web: http://www.openlinksw.com





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