@Override
public CloseableIteration<BindingSet, QueryEvaluationException> evaluate(
String sparqlQueryString,
BindingSet bindings,
String baseUri,
QueryType type,
Service service)
throws QueryEvaluationException {
RepositoryConnection conn = endpoint.getConn();
try {
TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, sparqlQueryString, baseUri);
Iterator<Binding> bIter = bindings.iterator();
while (bIter.hasNext()) {
Binding b = bIter.next();
if (service.getServiceVars().contains(b.getName()))
query.setBinding(b.getName(), b.getValue());
}
TupleQueryResult qRes = query.evaluate();
return new InsertBindingsIteration(qRes, bindings);
} catch (OpenRDFException e) {
throw new QueryEvaluationException(e);
}
}
protected int verifyQueryResult(
CloseableIteration<? extends BindingSet, QueryEvaluationException> resultIter,
int expectedBindingCount)
throws QueryEvaluationException {
int resultCount = 0;
while (resultIter.hasNext()) {
BindingSet resultBindings = resultIter.next();
resultCount++;
assertEquals(
"Wrong number of binding names for binding set",
expectedBindingCount,
resultBindings.getBindingNames().size());
int bindingCount = 0;
Iterator<Binding> bindingIter = resultBindings.iterator();
while (bindingIter.hasNext()) {
bindingIter.next();
bindingCount++;
}
assertEquals("Wrong number of bindings in binding set", expectedBindingCount, bindingCount);
}
return resultCount;
}
@Override
protected BindingSet convert(BindingSet bIn) throws QueryEvaluationException {
QueryBindingSet res = new QueryBindingSet();
int bIndex = -1;
Iterator<Binding> bIter = bIn.iterator();
while (bIter.hasNext()) {
Binding b = bIter.next();
String name = b.getName();
bIndex = Integer.parseInt(name.substring(name.lastIndexOf("_") + 1));
res.addBinding(name.substring(0, name.lastIndexOf("_")), b.getValue());
}
if (bIndex > -1) res.addAll(bindings.get(bIndex));
return res;
}