Re: WebIDs and Content-Location

There was a discussion on #swig on this. 

  http://chatlogs.planetrdf.com/swig/2012-04-13.html

I am not sure yet what the result of that is. (I'll need to work through it more carefully)

Henry

On 13 Apr 2012, at 14:54, Henry Story wrote:

> I have an issue about canonicalisation (de-relativisation?) of URLs. cwm and rapper
> don't return the same results, though cwm agrees with http://www.w3.org/RDF/Validator/
> 
> What is the full URL for the rdf:ID="me" in the XML returned below?
> Is it 
> 
>  - <http://vmuss13.deri.ie/foafprofiles/hada#me> as cwm  ( cwm.py,v 1.198 2012-01-30) and the w3 validator state?
>  or is it
>  - <hada.rdf#me> as raptor 2.0.6 returns (bizarrely as a relative url though) and as I thought it should be.
> 
> 
> $ curl -i http://vmuss13.deri.ie/foafprofiles/hada
> HTTP/1.1 200 OK
> Date: Fri, 13 Apr 2012 12:04:11 GMT
> Server: Apache/2.2.9 (Debian) PHP/5.2.6-1+lenny12 with Suhosin-Patch
> Content-Location: hada.rdf
> Vary: negotiate
> TCN: choice
> Last-Modified: Fri, 13 Apr 2012 11:26:38 GMT
> ETag: "8080-6af-4bd8dbeebb780;4bd8dbeebb780"
> Accept-Ranges: bytes
> Content-Length: 1711
> Content-Type: application/rdf+xml
> 
> <?xml version="1.0" encoding="ISO-8859-1"?>
> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
>       xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
>       xmlns:foaf="http://xmlns.com/foaf/0.1/"
>       xmlns:rsa="http://www.w3.org/ns/auth/rsa#"
>       xmlns:cert="http://www.w3.org/ns/auth/cert#"
>       xmlns:admin="http://webns.net/mvcb/">
> <foaf:PersonalProfileDocument rdf:about="">
>     <foaf:maker rdf:resource="#me"/>
>     <foaf:primaryTopic rdf:resource="#me"/>
> </foaf:PersonalProfileDocument>
> <foaf:Person rdf:ID="me">
>     <foaf:nick>HADAUser1</foaf:nick>
>     <foaf:givenName>Jane</foaf:givenName>
>     <foaf:familyName>Smith</foaf:familyName>
>     <foaf:workplaceHomepage rdf:resource="http://hhs.gov"/>	
>     <foaf:topic_interest rdf:resource="HEAR"/>
>     <foaf:topic_interest rdf:resource="Accounting"/>
> 
>     <cert:key>
>       <cert:RSAPublicKey rdf:ID="key1">
> 	<rdfs:label>HADA Admin</rdfs:label>
>         <cert:modulus rdf:datatype="http://www.w3.org/2001/XMLSchema#hexBinary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cert:modulus>
>         <cert:exponent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">65537</cert:exponent>
>       </cert:RSAPublicKey>
>     </cert:key>
> </foaf:Person>
> </rdf:RDF>
> 
> In my code  on read-write-web I use the returned Content-Location to form the base URL
> 
>    148           val loc = headers("Content-Location").headOption match {
>    149             case Some(loc) =>  new URL(u,loc)
>    150             case None => new URL(u.getProtocol,u.getAuthority,u.getPort,u.getPath)
>    151           }
>    152           res>>{ in=> modelFromInputStream(in,loc,encoding) }
>    153 
> ( https://dvcs.w3.org/hg/read-write-web/file/c6520ef80d5c/src/main/scala/GraphCache.scala#l148 )
> 
> Where modelFromInputStream uses the Jena libraries like this:
> 
>     12   def modelFromInputStream(
>     13       is: InputStream,
>     14       base: URL,
>     15       lang: Lang): Validation[Throwable, Model] =
>     16     try {
>     17       val m = ModelFactory.createDefaultModel()
>     18       m.getReader(lang.jenaLang).read(m, is, base.toString)
>     19       m.success
>     20     } catch {
>     21       case t =>  {
>     22         logger.info("cought exception turning stream into model ",t)
>     23         t.fail
>     24       }
>     25     }
> ( https://dvcs.w3.org/hg/read-write-web/file/c6520ef80d5c/src/main/scala/util/package.scala )
> 
> 
> Social Web Architect
> http://bblfish.net/
> 

Social Web Architect
http://bblfish.net/