For reference, the owlcs owlapi models an ontology identifier as a composite of ontology IRI and version IRI, the latter of which may be null. And the document IRI is either the version IRI if it has been specified, or the ontology IRI if there is no version IRI.
On Thu, Aug 8, 2024 at 3:08 AM Sergei Zuev <ssz...@apache.org> wrote: > > In the new API, the ontology identifier is either the version IRI or the > ontology IRI. The document IRI is not an identifier. > Perhaps this is a flaw - document support was added at the last moment, and > for managing imports closure no document-manager is needed. > > Typical work with documents can be like this: > ``` > DocumentGraphRepository repository = > GraphRepository.createGraphDocumentRepositoryMem(); > repository.addMapping( > "http://www.co-ode.org/ontologies/pizza/pizza.owl";, > documentPath); > OntModel m = OntModelFactory.getModelOrNull( > "http://www.co-ode.org/ontologies/pizza/pizza.owl";, > OntSpecification.OWL2_DL_MEM_BUILTIN_RDFS_INF, > repository); > m.write(System.out, "ttl"); > ``` > > Here, `http://www.co-ode.org/ontologies/pizza/pizza.owl` is an ontology IRI. > `DocumentGraphRepository` manages mappings between documents and ontologies. > > If you think that some functionality is missing, please open a github issue. > > By the way, the external library owlcs/ontapi, which works on top of > apache-ontapi, has its own full-fledged ontology manager, which works > according to the specification, i.e. the ontology identifier can also be a > document IRI. > > On 2024/08/07 11:15:58 Steve Vestal wrote: > > I have some questions about doing an OWL import closure. My > > understanding is that an Import for an owl:Ontology can use any of a > > URL, an ontology IRI, or a version IRI to access an OWL document. > > Different documents that have the same ontology IRI may be accessed > > using different URLs, either identical copies or with different version > > IRIs. > > > > The link given on the page > > https://jena.apache.org/documentation/ontology/#graphrepository > > (https://jena.apache.org/documentation/javadoc/jena/org.apache.jena.ontapi/org/apache/jena/ontapi/GraphRepository.html) > > gets a "URL was not found" error. A search didn't turn it up. What > > package contains this class? > > > > That page says "By default, when an ontology model reads an ontology > > document, it will/not/locate and load the document’s imports." A search > > of this page did not find OntDocumentManager, which I have been using. > > FileManager seems to be deprecated in favor of RDFDataMgr. Will > > OntDocumentManager be deprecated or modified? > > > > What is the recommended way to accumulate a set of URLs, ontology IRIs, > > and version IRIs, and use that set to do an import closure? > >
