public ArrayList<QuerySolution> executeQueryRaw(String queryString) {
// System.out.println(queryString);
try {
Query query = QueryFactory.create(queryString);
QueryExecution qe = QueryExecutionFactory.create(query, model);
ResultSet results = qe.execSelect();
/*
ByteArrayOutputStream ostream = new ByteArrayOutputStream();
ResultSetFormatter.out(ostream, results, query);
//ResultSetFormatter.out(System.out, results, query);
String r = "";
try{
r = new String(ostream.toByteArray(), "UTF-8");
System.out.println(r);
}
catch(Exception e){
System.out.println(e.getMessage());
}
*/
/*
ArrayList<QuerySolution> resList = new ArrayList<QuerySolution>();
if(results.hasNext()) {
QuerySolution qs = results.next();
resList.add(qs);
//double x = qs.getLiteral("x").getFloat();
//Literal y = qs.getLiteral("y");
//Literal theta = qs.getLiteral("theta");
}
*/
ArrayList<QuerySolution> resList = (ArrayList) ResultSetFormatter.toList(results);
qe.close();
return resList; // results;
} catch (Exception e) {
System.out.println(e.toString());
return new ArrayList<QuerySolution>();
}
}
private IRI executeRule(final Rule r, final IRI inputIRI) {
try {
PelletOptions.USE_ANNOTATION_SUPPORT = true;
PelletOptions.TREAT_ALL_VARS_DISTINGUISHED = controller.isTreatAllVariablesDistinguished();
QueryEngineType type = (QueryEngineType) controller.getQueryEngineType();
final QueryExecution qe;
final ByteArrayOutputStream w = new ByteArrayOutputStream();
final Query qSelect = getSelectExampleQuery(r.getQuery());
if (type.toPellet() != null) {
final OWLOntology queryOntology = getInputOntologyForRule(inputIRI);
final PelletReasoner reasoner =
PelletReasonerFactory.getInstance().createReasoner(queryOntology);
log.info("Ontology size: " + reasoner.getKB().getInfo());
final Dataset ds = kb2ds(reasoner.getKB());
final QueryExecution qeSelect =
SparqlDLExecutionFactory.create(qSelect, ds, null, type.toPellet());
final ResultSet rs = qeSelect.execSelect();
controller.setSelect(r, rs.getResultVars(), ResultSetFormatter.toList(rs));
qe =
SparqlDLExecutionFactory.create(
r.getQuery(), kb2ds(reasoner.getKB()), null, type.toPellet());
qe.execConstruct().write(w);
} else {
final ByteArrayOutputStream w2 = new ByteArrayOutputStream();
final Model model = ModelFactory.createDefaultModel();
try {
controller
.getOWLOntologyManager()
.saveOntology(queryOntology, new TurtleOntologyFormat(), w2);
model.read(new ByteArrayInputStream(w2.toByteArray()), "", "TURTLE");
final QueryExecution qeSelect = QueryExecutionFactory.create(qSelect, model);
final ResultSet rs = qeSelect.execSelect();
controller.setSelect(r, rs.getResultVars(), ResultSetFormatter.toList(rs));
qe = QueryExecutionFactory.create(r.getQuery(), model);
qe.execConstruct().write(w);
} catch (OWLOntologyStorageException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
final IRI outputIRI = getOntologyIRIForRuleName(r.getName());
// loaded generated ontology
final OWLOntology generatedOntology =
controller
.getOWLOntologyManager()
.loadOntologyFromOntologyDocument(new ByteArrayInputStream(w.toByteArray()));
controller.updateOntology(
generatedOntology,
outputIRI,
inputIRI,
controller.getRuleSpec().getResultFile(r).toURI());
controller.setStatus("Rule " + r.getName() + " successfully executed");
return outputIRI;
} catch (OWLOntologyCreationException e1) {
controller.setStatus(e1.getMessage());
return null;
}
}
