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Re: dbpedia lite

From: Nicholas Humfrey <nicholas.humfrey@bbc.co.uk>
Date: Wed, 19 May 2010 10:20:43 +0100
To: Ted Thibodeau Jr <tthibodeau@openlinksw.com>, Kingsley Idehen <kidehen@openlinksw.com>
CC: <public-lod@w3.org>
Message-ID: <C8196BFB.28AD7%nicholas.humfrey@bbc.co.uk>
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 09:21:15 UTC

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