public static String execSparQLQuery(String query) {
System.out.println("execSPINQuery");
Model model = getUqModel();
// Register system functions (such as sp:gt (>))
SPINModuleRegistry.get().init();
Query arqQuery = ARQFactory.get().createQuery(model, query);
ARQ2SPIN arq2SPIN = new ARQ2SPIN(model);
Select spinQuery = (Select) arq2SPIN.createQuery(arqQuery, null);
System.out.println("SPIN query in Turtle:");
model.write(System.out, FileUtils.langTurtle);
System.out.println("-----");
String str = spinQuery.toString();
System.out.println("SPIN query:\n" + str);
// Now turn it back into a Jena Query
Query parsedBack = ARQFactory.get().createQuery(spinQuery);
System.out.println("Jena query:\n" + parsedBack);
com.hp.hpl.jena.query.Query arq = ARQFactory.get().createQuery(spinQuery);
QueryExecution qexec = ARQFactory.get().createQueryExecution(arq, model);
QuerySolutionMap arqBindings = new QuerySolutionMap();
arqBindings.add("predicate", RDFS.label);
qexec.setInitialBinding(arqBindings); // Pre-assign the arguments
ResultSet rs = qexec.execSelect();
// System.out.println("#####################################################################");
//
// if (rs.hasNext()) {
// QuerySolution row = rs.next();
// System.out.println("Row: " +row.toString());
// RDFNode user = row.get("User");
// Literal label = row.getLiteral("label");
// System.out.println(user.toString());
// }
// RDFNode object = rs.next().get("object");
// System.out.println("Label is " + object);
Collection<User> users = Sparql.exec(getUqModel(), User.class, query);
String usersString = "";
for (User user : users) {
System.out.println("User: "******"<br/>";
}
System.out.println("execSPINQuery() done.");
return usersString;
}
// ??
public static QueryExecution create(Query query, Dataset dataset, QuerySolution initialBinding) {
checkArg(query);
QueryExecution qe = make(query, dataset);
if (initialBinding != null) qe.setInitialBinding(initialBinding);
return qe;
}
