/// <summary>
/// Converts the Algebra back to a SPARQL Query.
/// </summary>
/// <returns></returns>
public SparqlQuery ToQuery()
{
SparqlQuery q = _pattern.ToQuery();
q.Limit = _limit;
q.Offset = _offset;
return(q);
}
/// <summary>
/// Converts the Algebra back to a SPARQL Query.
/// </summary>
/// <returns></returns>
public SparqlQuery ToQuery()
{
SparqlQuery q = _pattern.ToQuery();
if (_having != null)
{
q.Having = _having;
}
return(q);
}
/// <summary>
/// Converts the Algebra back to a SPARQL Query.
/// </summary>
/// <returns></returns>
public SparqlQuery ToQuery()
{
SparqlQuery q = _pattern.ToQuery();
if (_ordering != null)
{
q.OrderBy = _ordering;
}
return(q);
}
/// <summary>
/// Converts the Algebra back to a SPARQL Query
/// </summary>
/// <returns></returns>
public SparqlQuery ToQuery()
{
SparqlQuery q = _pattern.ToQuery();
foreach (SparqlVariable var in _variables)
{
q.AddVariable(var);
}
if (_variables.All(v => v.IsResultVariable))
{
q.QueryType = SparqlQueryType.SelectAll;
}
else
{
q.QueryType = SparqlQueryType.Select;
}
return(q);
}
private void TestSubstitution(SparqlQuery q, String findVar, INode replaceTerm, IEnumerable <String> expected, IEnumerable <String> notExpected)
{
Console.WriteLine("Input Query:");
Console.WriteLine(this._formatter.Format(q));
Console.WriteLine();
ISparqlAlgebra algebra = q.ToAlgebra();
VariableSubstitutionTransformer transformer = new VariableSubstitutionTransformer(findVar, replaceTerm);
try
{
ISparqlAlgebra resAlgebra = transformer.Optimise(algebra);
algebra = resAlgebra;
}
catch (Exception ex)
{
//Ignore errors
Console.WriteLine("Error Transforming - " + ex.Message);
Console.WriteLine(ex.StackTrace);
Console.WriteLine();
}
SparqlQuery resQuery = algebra.ToQuery();
String resText = this._formatter.Format(resQuery);
Console.WriteLine("Resulting Query:");
Console.WriteLine(resText);
Console.WriteLine();
foreach (String x in expected)
{
Assert.IsTrue(resText.Contains(x), "Expected Transformed Query to contain string '" + x + "'");
}
foreach (String x in notExpected)
{
Assert.IsFalse(resText.Contains(x), "Transformed Query contained string '" + x + "' which was not expected");
}
}
