[ckan-dev] Prelim SPARQL endpoint - request for test

Mon Jul 9 17:16:44 UTC 2012

Hi,

Apologies, but it appears I missed the 1.7 release window with this fix, and so I am expecting this to get into the new 1.8 branch which is due very soon.  The change is in the master branch at https://github.com/okfn/ckan/blob/master/ckan/templates/package/read.rdf#L22 so it should be up on the datahub soon.

Ross.

On 9 Jul 2012, at 17:21, Pierre-Yves Vandenbussche wrote:

> Hello Ross,
> 
> I come back to you concerning the Datahub sparql endpoint. Have you added the information of format (dct:format) about a distribution ? Unless I missed something, I don't see this information. 
> 5 persons asked me about the SPARQL endopoint status tool but I do not have any fresh data since march.
> 
> All the best,
> 
> Pierre-Yves Vandenbussche.
> 
> 
> On Wed, May 23, 2012 at 2:48 PM, Ross Jones <ross.jones at okfn.org> wrote:
> 
> It's likely to change once I've got access to DNS to setup the CNAME (but it will only be a CNAME). Currently ruminating on semantic.datahub.io/semantic.thedatahub.org
> 
> I'll chase that up now.
> 
> Ross
> 
> 
> On 23 May 2012, at 13:40, Pierre-Yves Vandenbussche wrote:
> 
>> That's a very good news :) 
>> 
>> Is the SPARQL endpoint URL still  http://linkeddata.openlinksw.com/sparql  ? And is this URL stable or is it subject to changes ?
>> 
>> Thank you.
>> 
>> Pierre-Yves Vandenbussche.
>> 
>> 
>> On Wed, May 23, 2012 at 2:35 PM, Ross Jones <ross.jones at okfn.org> wrote:
>> Hi,
>> 
>> Thanks for the gentle reminder, I've implemented this in a branch, and I'll merge the commit into master today so that it appears on the next datahub.io update.  
>> 
>> Ross
>> 
>> 
>> On 23 May 2012, at 13:28, Pierre-Yves Vandenbussche wrote:
>> 
>>> Hi Ross,
>>> 
>>> if you want me to test some intermediate version, I can. 
>>> This endpoint is very useful and is somehow crucial for a semantic dataset catalogue.
>>> 
>>> Best,
>>>  
>>> Pierre-Yves Vandenbussche.
>>> 
>>> 
>>> On Fri, May 11, 2012 at 1:31 PM, Ross Jones <ross.jones at okfn.org> wrote:
>>> Hi,
>>> 
>>> Yes, I think I can add that.  It probably won't be right now, and we'll need to arrange for the new dumps to include this but it'll get added  to the RDF.  I've added a ticket at http://trac.ckan.org/ticket/2379 (assigned to myself) and will try to get to it in the next sprint.
>>> 
>>> Good feedback.  Keep it coming :)
>>> 
>>> Ross
>>> 
>>> 
>>> On 11 May 2012, at 12:22, Pierre-Yves Vandenbussche wrote:
>>> 
>>>> Hello Ross,
>>>> 
>>>> So sweet to hear that the SPARQL Endpoint is back !!! Thank you Ross.
>>>> 
>>>>  My app SPARQL Endpoint Status will rely on you endpoint : http://labs.mondeca.com/sparqlEndpointsStatus/index.html 
>>>> 
>>>> In my use case I need to fetch every sparql endpoint associated to a dataset. With the previous version of your endpoint, I was doing this query:
>>>> SELECT DISTINCT ?dataset ?endpoint ?title ?identifier WHERE { 
>>>> 	?dataset <http://www.w3.org/ns/dcat#distribution> ?distribution. 
>>>> 	?distribution <http://purl.org/dc/terms/format> [ <http://moat-project.org/ns#taggedWithTag> [ <http://moat-project.org/ns#name> "api/sparql" ] ]. 
>>>> 	?distribution <http://www.w3.org/ns/dcat#accessURL> ?endpoint. 
>>>> 	?dataset <http://purl.org/dc/terms/title> ?title.  
>>>> 	?dataset <http://purl.org/dc/terms/identifier> ?identifier. 
>>>> } ORDER BY ?title
>>>> 
>>>> Using your new version,dcterms:title of a dataset is now a rdfs:label ... OK
>>>> 
>>>> Unfortunately, I don't have the information of "api/sparql"  anymore. So I can not differentiate between a dump file and a SPARQL endpoint... 
>>>> 
>>>> Can you add this information  ?
>>>> 
>>>> If you need a more complete feedback, just ask :)
>>>> 
>>>> Pierre-Yves Vandenbussche.
>>> 
>>> 
>> 
>> 
> 
> 

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