Re: Southampton Pub data as linked open data

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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>
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>
> Thank you for your cooperation.
>
> Ordnance Survey
> Romsey Road
> Southampton SO16 4GU
> Tel: 08456 050505
> http://www.ordnancesurvey.co.uk
>
>
>
>   
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

Received on Monday, 28 July 2008 15:47:45 UTC