Create OntModel from SDJenaFactory Model: Not a supported accept type(s): [application/trig]

[luigi...@gmail.com]

Hi,

I'm trying to create an OntModel from Model created with SDJenaFactory with this code:

Model aModel = SDJenaFactory.createModel(aConn);

OntModel ontModel = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM, aModel);

but I have this exception:

Exception in thread "main" com.hp.hpl.jena.shared.JenaException: com.complexible.stardog.security.ResourceExistsException: Not a supported accept type(s): [application/trig]

at com.complexible.stardog.jena.StardogJenaGraph.graphBaseFind(StardogJenaGraph.java:208)

at com.hp.hpl.jena.graph.impl.GraphBase.find(GraphBase.java:268)

at com.hp.hpl.jena.graph.impl.GraphBase.graphBaseFind(GraphBase.java:290)

at com.hp.hpl.jena.graph.impl.GraphBase.find(GraphBase.java:287)

at com.hp.hpl.jena.rdf.model.impl.ModelCom.listStatements(ModelCom.java:458)

at com.hp.hpl.jena.rdf.model.impl.ModelCom.listStatements(ModelCom.java:464)

at com.hp.hpl.jena.ontology.impl.OntModelImpl.listImportedOntologyURIs(OntModelImpl.java:2065)

at com.hp.hpl.jena.ontology.impl.OntModelImpl.listImportedOntologyURIs(OntModelImpl.java:2036)

at com.hp.hpl.jena.ontology.OntDocumentManager.queueImports(OntDocumentManager.java:825)

at com.hp.hpl.jena.ontology.OntDocumentManager.loadImports(OntDocumentManager.java:704)

at com.hp.hpl.jena.ontology.impl.OntModelImpl.loadImports(OntModelImpl.java:1975)

at com.hp.hpl.jena.ontology.impl.OntModelImpl.<init>(OntModelImpl.java:150)

at com.hp.hpl.jena.ontology.impl.OntModelImpl.<init>(OntModelImpl.java:122)

at com.hp.hpl.jena.rdf.model.ModelFactory.createOntologyModel(ModelFactory.java:370)

at ldl.JenaIntegration.main(JenaIntegration.java:25)

Caused by: com.complexible.stardog.security.ResourceExistsException: Not a supported accept type(s): [application/trig]

at com.complexible.stardog.protocols.http.client.BaseHttpClient.checkResponseCode(BaseHttpClient.java:363)

at com.complexible.stardog.protocols.http.client.BaseHttpClient.execute(BaseHttpClient.java:241)

at com.complexible.stardog.protocols.http.client.HttpClientImpl.graph(HttpClientImpl.java:412)

at com.complexible.stardog.protocols.http.client.HttpClientImpl.graph(HttpClientImpl.java:92)

at com.complexible.stardog.api.impl.SPECGraphQuery.execute(SPECGraphQuery.java:47)

at com.complexible.stardog.api.impl.SPECGraphQuery.execute(SPECGraphQuery.java:33)

at com.complexible.stardog.jena.StardogJenaGraph.graphBaseFind(StardogJenaGraph.java:199)

... 14 more

the connected database is not empty, I have previously loaded data from a RDF file.

Can someone help me? Thanks!

[Michael Grove]

Looks like the OntModel is trying to do something to chase down imported ontologies.  If you want to provide the data so that we can try to reproduce this, that's helpful.  An ontology that uses imports that I had locally did not produce this error.

However, if you're trying to do some reasoning, there's no reason you should be using OntModel.  If you must use the Jena API, just stick with the plain Model and leave reasoning to Stardog.  It will be faster and more scalable than what OntModel will provide.

Cheers,

Mike

 

the connected database is not empty, I have previously loaded data from a RDF file.

Can someone help me? Thanks!

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