Re: dbpedia lite

Nicholas,

Given that you're using Sinatra, you might want use
http://github.com/mbklein/rack-conneg for your content negotiation
(not sure why RDF.rb would be involved in that layer, anyway) and use
either rdf-raptor or RdfContext to supply the various serializations.

-Ross.

On Wed, May 19, 2010 at 5:20 AM, Nicholas Humfrey
<nicholas.humfrey@bbc.co.uk> wrote:
> On 14/05/2010 20:43, "Ted Thibodeau Jr" <tthibodeau@openlinksw.com> wrote:
>
>> Nick --
>>
>> On May 14, 2010, at 12:33 PM, Kingsley Idehen wrote:
>>
>>> Nicholas Humfrey wrote:
>>>> There is RDFa already there for the Thing pages. Is there something missing?
>>>> Is it Void type stuff that you want me to add to the RDFa?
>>>
>>> Hmm, I get:
>>> http://linkeddata.uriburner.com/about/html/http/dbpedialite.org/things/52780
>>>
>>> Which returns:
>>> Unable to retrieve RDF data from "http://dbpedialite.org/things/52780":
>>> HTTP/1.0 400 Bad Request
>>
>>
>>
>> Something seems to be broken in the dbpedialite.org server's
>> content negotiation.
>>
>> Try these curl commands (which should all get the same output --
>> I'm not changing any values, just the order of the MIME types) --
>>
>> curl -i -H "Accept: application/rdf+xml; q=0.9, application/xhtml+xml; q=1.0,
>> text/rdf+n3; q=0.8, application/rdf+turtle; q=0.7, application/x-turtle;
>> q=0.6, application/turtle; q=0.5, application/xml; q=0.2, */*; q=0.1"
>> http://dbpedialite.org/things/52780
>>
>> curl -i -H "Accept: text/rdf+n3; q=0.8, application/xhtml+xml; q=1.0,
>> application/rdf+xml; q=0.9, application/rdf+turtle; q=0.7,
>> application/x-turtle; q=0.6, application/turtle; q=0.5, application/xml;
>> q=0.2, */*; q=0.1" http://dbpedialite.org/things/52780
>>
>> curl -i -H "Accept: application/rdf+turtle; q=0.7, application/xhtml+xml;
>> q=1.0, application/rdf+xml; q=0.9, text/rdf+n3; q=0.8, application/x-turtle;
>> q=0.6, application/turtle; q=0.5, application/xml; q=0.2, */*; q=0.1"
>> http://dbpedialite.org/things/52780
>>
>> curl -i -H "Accept: application/x-turtle; q=0.6, application/xhtml+xml; q=1.0,
>> application/rdf+xml; q=0.9, text/rdf+n3; q=0.8, application/rdf+turtle; q=0.7,
>> application/turtle; q=0.5, application/xml; q=0.2, */*; q=0.1"
>> http://dbpedialite.org/things/52780
>>
>> curl -i -H "Accept: application/xhtml+xml; q=1.0, application/rdf+xml; q=0.9,
>> text/rdf+n3; q=0.8, application/rdf+turtle; q=0.7, application/x-turtle;
>> q=0.6, application/turtle; q=0.5, application/xml; q=0.2, */*; q=0.1"
>> http://dbpedialite.org/things/52780
>>
>>
>> Note that the result for each is based on the first MIME type in
>> the list -- no matter that it supports a later listed type, nor
>> that a later listed type has a higher quality rating -- and that
>> all but the last gets an error.
>
>
> Hello Ted,
>
> Indeed there a very basic implementation of content negotiation at the
> moment - it only looks at the first item in the accept header list.
>
> The RDF.rb guys are working on proper content negotiation, so I am going to
> wait for that, rather than implementing it myself.
>
> Additionally there is currently no pure-ruby RDF/XML or Turtle
> implementation for RDF.rb. This is also something that is being worked on.
>
>
> nick.
>
>
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Received on Wednesday, 19 May 2010 14:05:50 UTC