/** * Gets NXRelations node instance given Jena node. * * @param jenaNodeInst * @return NXRelations node instance */ private Node getNXRelationsNode(com.hp.hpl.jena.graph.Node jenaNodeInst) { if (jenaNodeInst == null) { return null; } Node nuxNode = null; if (jenaNodeInst.isBlank()) { AnonId anonId = jenaNodeInst.getBlankNodeId(); String id = anonId.getLabelString(); nuxNode = NodeFactory.createBlank(id); } else if (jenaNodeInst.isLiteral()) { LiteralLabel label = jenaNodeInst.getLiteral(); String value = label.getLexicalForm(); String type = jenaNodeInst.getLiteralDatatypeURI(); String language = jenaNodeInst.getLiteralLanguage(); if (type != "") { nuxNode = NodeFactory.createTypedLiteral(value, type); } else if (language != "") { nuxNode = NodeFactory.createLiteral(value, language); } else { nuxNode = NodeFactory.createLiteral(value); } } else if (jenaNodeInst.isURI()) { String uri = jenaNodeInst.getURI(); // try to find corresponding prefix // TODO AT: maybe take namespaces from relation service? for (Map.Entry<String, String> ns : namespaces.entrySet()) { String base = ns.getValue(); if (uri.startsWith(base)) { String localName = uri.substring(base.length()); nuxNode = NodeFactory.createQNameResource(base, localName); break; } } if (nuxNode == null) { // default to resource nuxNode = NodeFactory.createResource(uri); } } else { throw new IllegalArgumentException( "Cannot translate non concrete Jena node into NXRelations node"); } return nuxNode; }