Retrieve information from a .rdf ontology

[Nogales Moyano Alberto <al...@uah.es>]

Dear all I am working with various ontologies some of them are in .owl and other .rdf. I have no problem with .owl files but when I try to load .rdf file I have errors. Here is my code for .owl, maybe the problems is with the model.

OntModel model = ModelFactory.createOntologyModel();


model.read("/ont/Indiana.rdf", "RDF/XML");
Query query = QueryFactory.create(SPARQLquery);

The error is:

Exception in thread "main" org.apache.jena.riot.RiotException: Element or attribute do not match QName production: QName::=(NCName':')?NCName.
at org.apache.jena.riot.system.ErrorHandlerFactory$ErrorHandlerStd.fatal(ErrorHandlerFactory.java:136)

Thank you and regards.
______________________________

Alberto Nogales Moyano
Information engineering research unit
University of Alcalá


El 14/11/2013, a las 21:30, <de...@jena.apache.org>>
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From: Nogales Moyano Alberto <al...@uah.es>>
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Re: Retrieve information from a .rdf ontology

[Andy Seaborne <an...@apache.org>]

On 14/11/13 20:55, Nogales Moyano Alberto wrote:
> Dear all I am working with various ontologies some of them are in
> .owl  and other .rdf. I have no problem with .owl files but when
 >  I try to load .rdf file I have errors. Here is my code for .owl,
> maybe the problems is with the model.
> OntModel model = ModelFactory.createOntologyModel();
>
>
> model.read("/ont/Indiana.rdf", "RDF/XML");
> Query query = QueryFactory.create(SPARQLquery);
>
> The error is:
>
> Exception in thread "main" org.apache.jena.riot.RiotException: Element or attribute do not match QName production: QName::=(NCName':')?NCName.
> at org.apache.jena.riot.system.ErrorHandlerFactory$ErrorHandlerStd.fatal(ErrorHandlerFactory.java:136)

There should be more of stacktrace than this.

It looks like there a problem in the data - the error is an XML error. 
The RDf/XML parser is correctly invoked but somewhere in your data there 
is illegal XML. A tag does not match the XML rules of <name:name>.

	Andy