Importing owl files
- by Mikae Combarado
Hello,
I have a problem with importing owl files using owl api in Java. I successfully can import 2 owl files. However, a problem occurs, when I try to import 3 or more owl files that are integrated to each other.
E.g.
Base.owl -- base ontology
Electronics.owl -- electronics ontology which imports Base.owl
Telephone.owl -- telephone ontology which imports Base.owl and Electronics.owl
When, I just import Base.owl and run Electronics.owl, it works smoothly. The code is given below:
File fileBase = new File("filepath/Base.owl");
File fileElectronic = new File("filePath/Electronic.owl");
SimpleIRIMapper iriMapper = new SimpleIRIMapper(IRI.create("url/Base.owl"),
IRI.create(fileBase));
OWLOntologyManager manager = OWLManager.createOWLOntologyManager();
manager.addIRIMapper(iriMapper);
OWLOntology ont = manager.loadOntologyFromOntologyDocument(fileElectronic);
However, when I want to load Telephone.owl, I just create an additional iriMapper and add it to the manager. The additional code is shown with ** :
File fileBase = new File("filepath/Base.owl");
File fileElectronic = new File("filePath/Electronic.owl");
**File fileTelephone = new File("filePath/Telephone.owl");**
SimpleIRIMapper iriMapper = new SimpleIRIMapper(IRI.create("url/Base.owl"),
IRI.create(fileBase));
**SimpleIRIMapper iriMapper2 = new SimpleIRIMapper(IRI.create("url/Electronic.owl"),
IRI.create(fileElectronic));**
OWLOntologyManager manager = OWLManager.createOWLOntologyManager();
manager.addIRIMapper(iriMapper);
**manager.addIRIMapper(iriMapper2);**
OWLOntology ont = manager.loadOntologyFromOntologyDocument(**fileTelephone**);
The code shown above gives this error :
Could not load import:
Import(url/Electronic.owl>)
Reason: Could not loaded imported ontology:
<url/Base.owl> Cause: null
It would be really appreciated, if someone gives me a hand...
Thanks in advance...
