public void AddSelectVariable(string variableName, string entityType, bool isCollection)
{
if (!SelectVariables.Contains(variableName))
{
SelectVariables.Add(variableName);
VariableType[variableName] = new SparqlVariableInfo {
EntityType = entityType, IsCollection = isCollection
};
}
}
public string GetSparqlRepresentation()
{
if (!String.IsNullOrEmpty(DescribeResource))
{
return(String.Format("CONSTRUCT {{ <{0}> ?p ?o }} WHERE {{ <{0}> ?p ?o }}", DescribeResource));
}
var queryBuilder = new StringBuilder();
bool inSubquery = false;
if (SelectVariables.Count > 0)
{
if (IsDescribe)
{
queryBuilder.Append("CONSTRUCT {");
foreach (var sv in SelectVariables)
{
queryBuilder.AppendFormat("?{0} ?{0}_p ?{0}_o . ", sv);
queryBuilder.AppendFormat(
"?{0} <http://brightstardb.com/odata-sparql/variable-binding> \"{0}\"", sv);
}
queryBuilder.Append("} WHERE { ");
foreach (var sv in SelectVariables.Distinct())
{
queryBuilder.AppendFormat("?{0} ?{0}_p ?{0}_o . ", sv);
}
queryBuilder.Append("{");
inSubquery = true;
}
queryBuilder.Append("SELECT ");
foreach (string sv in SelectVariables)
{
queryBuilder.AppendFormat("?{0} ", sv);
}
}
else
{
queryBuilder.Append("SELECT * ");
}
queryBuilder.Append("WHERE { ");
queryBuilder.Append(RootGraphPattern.GetSparqlRepresentation());
queryBuilder.Append("} ");
if (Ordering != null)
{
queryBuilder.Append("ORDER BY ");
queryBuilder.Append(Ordering.GetSparqlRepresentation());
queryBuilder.Append(" ");
}
if (Offset.HasValue)
{
queryBuilder.AppendFormat("OFFSET {0} ", Offset);
}
if (Limit.HasValue)
{
queryBuilder.AppendFormat("LIMIT {0} ", Limit);
}
if (inSubquery)
{
queryBuilder.Append("} }");
}
return(queryBuilder.ToString());
}
/// <summary>
/// Run scenario with variables.
/// </summary>
private void RunScenarioWithVariables(object sender, EventArgs e)
{
TreePosition tmp = CurrentServer.SelectedRow;
if (tmp == null)
return;
var data = ServerStore.GetNavigatorAt(tmp).GetValue(ColumnType);
if (data is Scenario)
{
if (WorkingThread != null)
{
MessageDialog.ShowError(Director.Properties.Resources.CanNotStartScenario);
return;
}
Scenario s = (Scenario)data;
// Show dialog
var variableDialog = new SelectVariables (s);
// Status
var stat = variableDialog.Run();
// Save and run | Ok - save variables
if (stat != null && stat != Command.Cancel)
s.customVariables = variableDialog.NewVariableList();
// Run
if (stat == Command.Ok)
{
WorkingThread = new Thread(ThreadWorker);
WorkingThread.IsBackground = true;
WorkingThread.Start(s);
}
// Update view
UpdateControlView(sender, e);
variableDialog.Dispose ();
}
}