W3C home > Mailing lists > Public > public-lod@w3.org > November 2010

Re: Is 303 really necessary - demo

From: Jörn Hees <j_hees@cs.uni-kl.de>
Date: Fri, 5 Nov 2010 15:41:23 +0100
To: public-lod@w3.org
Message-Id: <201011051541.23955.j_hees@cs.uni-kl.de>
Ah, it's magic in the header:

curl -i http://iandavis.com/2010/303/toucan
HTTP/1.1 200 OK
Date: Fri, 05 Nov 2010 14:22:40 GMT
Server: Apache/2.2.8 (Ubuntu) DAV/2 SVN/1.4.6 PHP/5.2.4-2ubuntu5.10 with 
Suhosin-Patch mod_wsgi/1.3 Python/2.5.2
Content-Location: toucan.rdf
Vary: negotiate
TCN: choice
Last-Modified: Fri, 05 Nov 2010 09:24:27 GMT
ETag: "264186-403-4944ad745a8c0;4944ad754eb00"
Accept-Ranges: bytes
Content-Length: 1027
Content-Type: application/rdf+xml; qs=0.9

Notice the Content-Location field.

curl -i http://iandavis.com/2010/303/toucan.rdf
HTTP/1.1 200 OK
Date: Fri, 05 Nov 2010 14:22:53 GMT
Server: Apache/2.2.8 (Ubuntu) DAV/2 SVN/1.4.6 PHP/5.2.4-2ubuntu5.10 with 
Suhosin-Patch mod_wsgi/1.3 Python/2.5.2
Last-Modified: Fri, 05 Nov 2010 09:24:27 GMT
ETag: "264186-403-4944ad745a8c0"
Accept-Ranges: bytes
Content-Length: 1027
Content-Type: application/rdf+xml; qs=0.9

Well, I'd be ok with this, as it lowers the roundtrip problems of 303.
But might take a long time till all tools support it and don't get confused.

A bit offtopic:
I'd rather see people putting information about a responsible sparql endpoint 
into the play. If you have that you can do a lot more / wiser things than 
crawling data which is incomplete anyhow (if you dereference a URI you can't 
expect to get all triples back, which are relevant for you, try 
http://dbpedia.org/resource/United_States (not the HTML page, but rdf+xml 
content negotiation and see that you don't even get a label but only incoming 
links)).

Jörn
Received on Friday, 5 November 2010 14:41:59 UTC

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