private IEnumerable <SparqlQuery> GetRemoteQueries(SparqlEvaluationContext context, ISet[] bindings)
{
if (bindings.Length == 0)
{
// No pre-bound variables/BINDINGS clause so just return the query
yield return(GetRemoteQuery(context));
}
else
{
// Split bindings in chunks and inject them
foreach (var chunk in bindings.ChunkBy(100))
{
var vars = chunk.SelectMany(x => x.Variables).Distinct();
var data = new BindingsPattern(vars);
foreach (var set in chunk)
{
var tuple = new BindingTuple(
new List <string>(set.Variables),
new List <PatternItem>(set.Values.Select(x => new NodeMatchPattern(x))));
data.AddTuple(tuple);
}
var sparqlQuery = GetRemoteQuery(context);
sparqlQuery.RootGraphPattern.AddInlineData(data);
yield return(sparqlQuery);
}
}
}
public IInlineDataBuilder Values(Action <IBindingTupleBuilder> buildWith)
{
var builder = new BindingTupleBuilder(_variables);
buildWith(builder);
_bindingsPattern.AddTuple(builder.GetTuple());
return(this);
}
public void InsertValuesClause()
{
var g = new Graph();
g.LoadFromFile("resources\\rvesse.ttl");
var parser = new SparqlQueryParser();
SparqlQuery startingQuery =
parser.ParseFromString("SELECT * WHERE { <http://www.dotnetrdf.org/people#rvesse> ?p ?o }");
var bindingVars = new List<string> {"p"};
var binding = new BindingsPattern(bindingVars);
binding.AddTuple(new BindingTuple(bindingVars, new List<PatternItem>
{
new NodeMatchPattern(g.CreateUriNode(UriFactory.Create("http://xmlns.com/foaf/0.1/name")))
}));
binding.AddTuple(new BindingTuple(bindingVars, new List<PatternItem>
{
new NodeMatchPattern(g.CreateUriNode(UriFactory.Create("http://xmlns.com/foaf/0.1/givenname")))
}));
startingQuery.RootGraphPattern.AddInlineData(binding);
g.ExecuteQuery(startingQuery).Should().BeAssignableTo<SparqlResultSet>().Which.Count.Should().Be(2);
}