Come ottenere le annotazioni dal file .owl usando java - java

Ho un file .owl che contiene annotazioni di ontologia genica. Ho bisogno di recuperare le annotazioni da quel file .OWL usando java

risposte:

L'API OWL nella fucina sorgente (http://owlapi.sourceforge.net/) ha tutte le funzioni di base, Ecco un esempio per analizzare un'ontologia OWL con la libreria API OWL

import static org.semanticweb.owlapi.search.Searcher.annotations;
import static org.semanticweb.owlapi.vocab.OWLRDFVocabulary.RDFS_LABEL;

import java.util.ArrayList;
import java.util.List;

import org.semanticweb.owlapi.apibinding.OWLManager;
import org.semanticweb.owlapi.model.IRI;
import org.semanticweb.owlapi.model.OWLAnnotation;
import org.semanticweb.owlapi.model.OWLAnnotationProperty;
import org.semanticweb.owlapi.model.OWLClass;
import org.semanticweb.owlapi.model.OWLDataFactory;
import org.semanticweb.owlapi.model.OWLException;
import org.semanticweb.owlapi.model.OWLLiteral;
import org.semanticweb.owlapi.model.OWLOntology;
import org.semanticweb.owlapi.model.OWLOntologyCreationException;
import org.semanticweb.owlapi.model.OWLOntologyManager;

public class OwlParser {

private final OWLOntology ontology;
private OWLDataFactory df;

public OwlParser(OWLOntology ontology, OWLDataFactory df) {
this.ontology = ontology;
this.df = df;
}

public void parseOntology()
throws OWLOntologyCreationException {

for (OWLClass cls : ontology.getClassesInSignature()) {
String id = cls.getIRI().toString();
String label = get(cls, RDFS_LABEL.toString()).get(0);
System.out.println(label + " [" + id + "]");
}
}

private List<String> get(OWLClass clazz, String property) {
List<String> ret = new ArrayList<>();

final OWLAnnotationProperty owlProperty = df
.getOWLAnnotationProperty(IRI.create(property));
for (OWLOntology o : ontology.getImportsClosure()) {
for (OWLAnnotation annotation : annotations(
o.getAnnotationAssertionAxioms(clazz.getIRI()), owlProperty)) {
if (annotation.getValue() instanceof OWLLiteral) {
OWLLiteral val = (OWLLiteral) annotation.getValue();
ret.add(val.getLiteral());
}
}
}
return ret;
}

public static void main(String[] args) throws OWLException,
InstantiationException, IllegalAccessException,
ClassNotFoundException {

String x = "http://ontology.neuinfo.org/NIF/Dysfunction/NIF-Dysfunction.owl";

IRI documentIRI = IRI.create(x);
OWLOntologyManager manager = OWLManager.createOWLOntologyManager();
OWLOntology ontology = manager
.loadOntologyFromOntologyDocument(documentIRI);
OwlParser parser = new OwlParser(ontology, manager.getOWLDataFactory());
parser.parseOntology();
}
}