private RDFTerm internallyMap()

in commons-rdf-simple/src/main/java/org/apache/commons/rdf/simple/DatasetImpl.java [122:146]

• 21 lines of code
• 10 McCabe index (conditional complexity)

    private <T extends RDFTerm> RDFTerm internallyMap(final T object) {
        if (object == null || object instanceof SimpleRDFTerm) {
            return object;
        }
        if (object instanceof BlankNode && !(object instanceof BlankNodeImpl)) {
            final BlankNode blankNode = (BlankNode) object;
            // This guarantees that adding the same BlankNode multiple times to
            // this graph will generate a local object that is mapped to an
            // equivalent object, based on the code in the package private
            // BlankNodeImpl class
            return factory.createBlankNode(blankNode.uniqueReference());
        }
        if (object instanceof IRI && !(object instanceof IRIImpl)) {
            final IRI iri = (IRI) object;
            return factory.createIRI(iri.getIRIString());
        }
        if (!(object instanceof Literal) || object instanceof LiteralImpl) {
            throw new IllegalArgumentException("Not a BlankNode, IRI or Literal: " + object);
        }
        final Literal literal = (Literal) object;
        if (literal.getLanguageTag().isPresent()) {
            return factory.createLiteral(literal.getLexicalForm(), literal.getLanguageTag().get());
        }
        return factory.createLiteral(literal.getLexicalForm(), (IRI) internallyMap(literal.getDatatype()));
    }