RE: [Fwd: [Linking-open-data] Redirect Recipe]

Diego,

I absolutely agree. Josh is a good guy, excellent work done
(not only) in the linking open data realm. I would even go
a step further and query him for more input. I bet he has
even more to offer ;)

Cheers,
	Michael 

----------------------------------------------------------
 Michael Hausenblas, MSc.
 Institute of Information Systems & Information Management
 JOANNEUM RESEARCH Forschungsgesellschaft mbH
 Steyrergasse 17, A-8010 Graz, AUSTRIA
---------------------------------------------------------- 

> -----Original Message-----
> From: public-swd-wg-request@w3.org 
> [mailto:public-swd-wg-request@w3.org] On Behalf Of Diego Berrueta
> Sent: Sunday, January 20, 2008 8:27 PM
> To: SWD WG
> Cc: jt@occams.info
> Subject: [Fwd: [Linking-open-data] Redirect Recipe]
> 
> 
> Hi all,
> 
> Find below a post by Joshua Tauberer to the Linking Open Data 
> mailing list. I think we should consider  his finding to be 
> included in future revisions of the Recipes document. It 
> clearly fits into the second pattern of recipe 6 [1].
> 
> Best regards,
> 
> [1] http://www.w3.org/2006/07/SWD/recipes/draft-20071203#pattern2
> 
> -------- Forwarded message --------
> Asunto: 	[Linking-open-data] Redirect Recipe
> Fecha: 	Sun, 20 Jan 2008 12:49:19 -0500
> De: 	Joshua Tauberer <jt@occams.info>
> Responder a: 	Linking Open Data <linking-open-data@simile.mit.edu>
> Para: 	Linking Open Data <linking-open-data@simile.mit.edu>
> 
> 
> 
> Hi all,
> 
> To make my data linked data, I employ automatically generated 
> redirects from a virtual space of URIs to SPARQL DESCRIBE 
> queries through GET. For
> instance:
> 
>    http://www.rdfabout.com/rdf/usgov/geo/us
>    ...redirects to...
>    http://www.rdfabout.com/sparql?
>       query=DESCRIBE+%3Chttp://www.rdfabout.com/rdf/usgov/geo/us%3E
> 
> This was accomplished with (sorry for broken line) this in an 
> Apache .htaccess file:
> 
> RedirectMatch 303 (/rdf/.*) http://rdfabout.com/sparql?
>                    query=DESCRIBE+%3Chttp://www.rdfabout.com$1%3E
> 
> It maps only URLs within the 'http://(host)/rdf/' path space.
> 
> I ran into a problem when I created some URIs with %20's in 
> them, because the redirect would need to double-escape the 
> %20's when they are put into the query string.
> 
> After some chin-scratching I found out that mod_rewrite could 
> be used to do a proper redirect, and I've documented it here:
> 
>    http://rdfabout.com/demo/census/htaccess.txt
> 
> There's more explanation in the link, but the short story is 
> putting into the main httpd.conf:
> 
>    RewriteMap esc int:escape
> 
> and then into .htaccess:
> 
>    RewriteEngine on
>    RewriteBase "/"
>    RewriteRule ^(rdf/.*) http://%{HTTP_HOST}/sparql?   (..all 
> one line..)
>                query=DESCRIBE+<http://%{HTTP_HOST}/${esc:$1}> [R]
> 
> Thought others may find that useful.
> 
> --
> - Josh Tauberer
> 
> http://razor.occams.info
> 
> "Yields falsehood when preceded by its quotation!  Yields 
> falsehood when preceded by its quotation!" Achilles to 
> Tortoise (in "Gödel, Escher, Bach" by Douglas Hofstadter) 
> _______________________________________________
> Linking-open-data mailing list
> Linking-open-data@simile.mit.edu
> http://simile.mit.edu/mailman/listinfo/linking-open-data
> 
> 
> --
> Diego Berrueta
> R&D Department  -  CTIC Foundation
> E-mail: diego.berrueta@fundacionctic.org
> Phone: +34 984 29 12 12
> Parque Cientifico Tecnologico Gijon-Asturias-Spain 
> http://www.fundacionctic.org
> 
> 
> 
>

Received on Sunday, 20 January 2008 19:36:23 UTC