Hi Roberto,
Virtuoso 06.01.3126 is release and available for download from the following
location:
http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VOSDownload
Can you please download and update you installation with this latest release,
and repeat the test to see if the issue still occurs ...
Best Regards
Hugh Williams
Professional Services
OpenLink Software
Web: http://www.openlinksw.com
Support: http://support.openlinksw.com
Forums: http://boards.openlinksw.com/support
Twitter: http://twitter.com/OpenLink
On 16 Feb 2010, at 12:17, Roberto García wrote:
> Dear all,
>
> I'm using the Virtuoso Jena Provider with Virtuoso 06.00.3123 but I'm
> getting an exception when serialising the Jena Model (Jena 2.5.7) I
> get from a describe SPARQL query.
>
> The source code is:
>
> ByteArrayOutputStream out = new ByteArrayOutputStream();
> VirtuosoQueryExecution qexec =
> VirtuosoQueryExecutionFactory.create(queryString, graph);
> Model results = qexec.execDescribe();
> results.write(out, "RDF/XML-ABBREV");
>
> An the query:
>
> DESCRIBE ?r
> FROM <http://rhizomik.net>
> WHERE { ?r <http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
> <http://purl.org/rss/1.0/item> .}
>
> The exception is:
>
> com.hp.hpl.jena.shared.BadURIException: Only well-formed absolute
> URIrefs can be included in RDF/XML output: <The first version of
> Rhizomer, version 0.1, is announced at the EKAW'08 conference.> Code:
> 58/REQUIRED_COMPONENT_MISSING in SCHEME: A component that is required
> by the scheme is missing.
>
> However, if I perform the same query through the Virtuoso SPARQL
> endpoint I get the following triples:
>
> <http://localhost:8080/rhizomer/blog/2008/10/03/announced-rhizomer-0.1/>
> <http://purl.org/dc/elements/1.1/date> "2008-10-03"
> .
> <http://localhost:8080/rhizomer/blog/2008/10/03/announced-rhizomer-0.1/>
> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
> .
> <http://localhost:8080/rhizomer/blog/2008/10/03/announced-rhizomer-0.1/>
> <http://www.w3.org/2002/12/cal/icaltzd#dtend> "2008-10-03"
> .
> <http://localhost:8080/rhizomer/blog/2008/10/03/announced-rhizomer-0.1/>
> <http://purl.org/rss/1.0/description> "The
> first version of Rhizomer, version 0.1, is announced at the EKAW'08
> conference." .
> <http://localhost:8080/rhizomer/blog/2008/10/03/announced-rhizomer-0.1/>
> <http://purl.org/rss/1.0/title> "Rhizomer
> 0.1 is announced at EKAW'08" .
> <http://localhost:8080/rhizomer/blog/2008/10/03/announced-rhizomer-0.1/>
> <http://www.w3.org/2003/01/geo/wgs84_pos#lat> "37.563855"
> .
> <http://localhost:8080/rhizomer/blog/2008/10/03/announced-rhizomer-0.1/>
> <http://www.w3.org/2003/01/geo/wgs84_pos#long> "15.161365"
> .
> <http://localhost:8080/rhizomer/blog/2008/10/03/announced-rhizomer-0.1/>
> <http://www.w3.org/2002/12/cal/icaltzd#dtstart> "2008-10-03"
> .
> <http://localhost:8080/rhizomer/blog/2008/10/03/announced-rhizomer-0.1/>
> <http://purl.org/rss/1.0/link>
> "http://localhost:8080/rhizomer/html/blog/2008/10/03/announced-rhizomer-0.1/";
> .
> <http://localhost:8080/rhizomer/blog/2008/10/03/announced-rhizomer-0.1/>
> <http://purl.org/dc/elements/1.1/creator>
> <http://purl.org/dc/elements/1.1/creator>
> .
> <http://localhost:8080/rhizomer/blog/2008/10/03/announced-rhizomer-0.1/>
> <http://www.w3.org/2000/01/rdf-schema#label> "Announced
> Rhizomer 0.1" .
>
> It seems that the query result is not correctly serialised into the
> Jena Model and a literal is modelled using a resource Jena object. Is
> this a bug or am I doing something wrong?
>
> In fact, there is strange triple in the NTriples serialisation:
> <http://localhost:8080/rhizomer/blog/2008/10/03/announced-rhizomer-0.1/>
> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
> .
>
> that is not present in N3/Turtle one:
> @prefix ns1: <http://purl.org/rss/1.0/> .
> <http://localhost:8080/rhizomer/blog/2008/10/03/announced-rhizomer-0.1/>
> rdf:type ns1:item
> .
>
>
> Best,
>
> Roberto García
> http://rhizomik.net/~roberto/
>
> ------------------------------------------------------------------------------
> SOLARIS 10 is the OS for Data Centers - provides features such as DTrace,
> Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW
> http://p.sf.net/sfu/solaris-dev2dev
> _______________________________________________
> Virtuoso-users mailing list
> Virtuoso-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/virtuoso-users
