Re: [OWLAPI-developer] Problem when I create and save an ontology...

[Ignazio P. <ipa...@gm...>]

2011/5/19 Fernando Wagner <fer...@gm...>:
> Hello friends,
>
> I having a problem with create and save ontology..I create some axioms:
>
> SubClassOf(reviewedarticle publication)
> SubClassOf(journalarticle reviewedarticle)
>
> And I use the foloowing constructor to create an ontology:
>
> subontology = manager.createOntology(Axiomas,ontologyURI);
>
> Where subontology is a OWLOntology, Axiomas is a set of OWLAxiom and
> ontologyURI = http://www.example.org/ontology1
>
> After, I use:
>
> manager.setPhysicalURIForOntology(subontology, documentURI);
>
> where documentURI = file:///C:/Users/Fernando/Documents/test1.owl
>
> But, the ontology isn´t been physically created, and no error or exception
> messages are displayed.
> So, when I try to save more axioms in the ontology:
>
> manager.saveOntology(subontology,manager.getOntologyFormat(ontology));

I must still be sleeping: the problem is here. You just created the
ontology, so it doesn't have a format already, hence
getOntologyFormat() returns a null, and that's the reason for the
problem. You need to explicitly specify a format, or use the default
(which is what you said you are doing).
HTH,
I.

>
> The following error appears:
>
> Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
>     at
> org.coode.owl.latex.LatexOntologyStorer.canStoreOntology(LatexOntologyStorer.java:58)
>     at
> uk.ac.manchester.cs.owl.OWLOntologyManagerImpl.saveOntology(OWLOntologyManagerImpl.java:574)
>     at
> uk.ac.manchester.cs.owl.OWLOntologyManagerImpl.saveOntology(OWLOntologyManagerImpl.java:559)
>     at UtilOWLAPI.ConstroiSubontologia(UtilOWLAPI.java:755)
>     at
> InterfacePrincipal$RecorteHandler.actionPerformed(InterfacePrincipal.java:719)
>
> Someone can help me??
>
> Really Thanks,
>
> Fernando
>
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