protected boolean isNonNegativeIntegerLax(IRI mainNode, OWLRDFVocabulary predicate) {
OWLLiteral literal = consumer.getLiteralObject(mainNode, predicate, false);
if (literal == null) {
return false;
}
return OWL2Datatype.XSD_INTEGER.isInLexicalSpace(literal.getLiteral().trim());
}
protected boolean isNonNegativeIntegerStrict(IRI mainNode, OWLRDFVocabulary predicate) {
OWLLiteral literal = consumer.getLiteralObject(mainNode, predicate, false);
if (literal == null) {
return false;
}
OWLDatatype datatype = literal.getDatatype();
OWL2Datatype nni = OWL2Datatype.XSD_NON_NEGATIVE_INTEGER;
return datatype.getIRI().equals(nni.getIRI()) && nni.isInLexicalSpace(literal.getLiteral());
}
protected int translateInteger(IRI mainNode, OWLRDFVocabulary predicate) {
OWLLiteral literal = consumer.getLiteralObject(mainNode, predicate, true);
if (literal == null) {
return 0;
}
try {
return Integer.parseInt(literal.getLiteral().trim());
} catch (NumberFormatException e) {
return 0;
}
}
protected boolean isLiteralPresent(IRI mainNode, OWLRDFVocabulary predicate) {
return consumer.getLiteralObject(mainNode, predicate, false) != null;
}
