[occi-wg] another OCCI RDF prototype

Roger Menday roger.menday at uk.fujitsu.com
Wed Nov 11 15:31:41 CST 2009



hi all,

Seems a good time to publicise a very basic OCCI / RDF prototype put  
together a while back.

http://fujocci.appspot.com/iamsecret/

As well as clicking through, you can also query your cloud from the  
SPARQL endpoint (click on 'search'). The following sample query should  
list all the compute resources.

PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX occi: <http://www.ogf.org/occi#>
SELECT ?c
WHERE {
   ?c rdf:type occi:compute
}

it is possible to filter in the query, for example, to only return the  
live ones, etc.

The following

PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX occi: <http://www.ogf.org/occi#>
SELECT ?s ?p ?o
WHERE {
   ?s ?p ?o
}

should return *all* the triples.

Quality pretty rough right now - for example, the states collection  
*should* change according to what it makes sense to offer - it  
doesn't. The other thing is that is it currently not possible to  
request the straight RDF representation. Both did work at some point ;(

regards,
Roger


Roger Menday (PhD)
<roger.menday at uk.fujitsu.com>

Senior Researcher, Fujitsu Laboratories of Europe Limited
Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE, U.K.
Tel: +44 (0) 208 606 4534


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