public static void main(String[] args) {
// example query
String query = "SELECT ?s ?p ?o from <sesame> WHERE { ?s ?p ?o }";
try {
VirtuosoAdminListener _report = null;
VirtuosoRepository rep =
new VirtuosoRepository("sesame", "jdbc:virtuoso://localhost:1111", "dba", "dba");
rep.clear(_report);
File dataFile = new File("virtuoso_driver/data.nt");
rep.addData(dataFile, null, RDFFormat.NTRIPLES, false, _report);
// execute query
QueryResultsTable result = rep.performTableQuery(null, query);
System.out.println("result.getRowCount = " + result.getRowCount());
} catch (AccessDeniedException ade) {
System.out.println("Access denied.");
System.out.println(ade.getMessage());
} catch (FileNotFoundException fnfe) {
System.out.println("File not found.");
System.out.println(fnfe.getMessage());
} catch (IOException ioe) {
System.out.println("I/O error.");
System.out.println(ioe.getMessage());
} catch (QueryEvaluationException qee) {
System.out.println("QueryEvaluationException.");
System.out.println(qee.getMessage());
} catch (MalformedQueryException mqe) {
System.out.println("Malformed query - SimpleExample.");
System.out.println(mqe.getMessage());
mqe.printStackTrace();
} catch (ClassCastException cce) {
System.out.println("ClassCastException repository.");
System.out.println(cce.getMessage());
cce.printStackTrace();
}
}
public NamespaceIterator getNamespaces() {
// logger.info("getNamespaces ()");
NamespaceIterator result = null;
;
result = _vRepository.getNamespaces();
return result;
}
public void addStatement(Resource subj, URI pred, Value obj) throws SailUpdateException {
// logger.info("addStatement ()");
if (!transactionStarted()) {
throw new SailUpdateException("no transaction started.");
}
_vRepository.addSingleStatement(subj, pred, obj);
// logger.info("Adding statement (" + subj + ", " + pred + ", " + obj + ")");
}
public void clearRepository() throws SailUpdateException {
// logger.info("clearRepository ()");
if (!transactionStarted()) {
throw new SailUpdateException("no transaction started.");
}
try {
_vRepository.clear(listener);
} catch (Exception e) {
e.printStackTrace();
}
}
public ValueFactory getValueFactory() {
// logger.info("getValueFactory ()");
return _vRepository.getValueFactory();
}
