public override object ConvertFrom(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
{
string raw = value as string;
try
{
string[] parts = raw.Split(new char[] { '(' }, 2); //split using first peren
string main = parts[0];
bool isTarget = parts[0].ToLower().StartsWith("t"); //target mrefs start with t
MeasureRef mref = new MeasureRef(
Int32.Parse(isTarget ? main.Substring(1) : main),
isTarget);
if (parts.Length > 1)
{
string[] paramsRaw = parts[1].Substring(0, parts[1].Length - 1).Split(','); //split over commas
MeasureRef[] parameters = new MeasureRef[paramsRaw.Length];
for (int i = 0; i < paramsRaw.Length; i++)
{
parameters[i] = (MeasureRef) new Converter().ConvertFrom(paramsRaw[i].Trim()); //convert each ref
}
mref.FunctionMeasures = parameters;
}
return(mref);
}
catch (Exception ex)
{
throw new Exception("Invalid measure ref: " + raw, ex);
}
}
private void GetFieldsSQL(MeasureRef measure, int measureIndex, int RangeIndex, out string AggregateFunction, out string HavingString, Dictionary <int, Measure> measuresList, MeasureFilter filter)
{
AggregateFunction = BuildAggregateFunction(measure, measuresList);
HavingString = AggregateFunction + " IS NOT NULL ";
try
{
if (filter.MeasureIndex == measureIndex && filter.RangeIndex == RangeIndex)
{
HavingString += " AND " + AggregateFunction + filter.Operator.ToString() + filter.FilterValue;
}
}
catch (NullReferenceException)
{
}
AggregateFunction = AggregateFunction + " AS 'M" + measureIndex + ".R" + RangeIndex + ".Value'";
}
private string BuildAggregateFunction(MeasureRef measure, Dictionary <int, Measure> measuresList)
{
Measure m = measuresList[measure.MeasureID];
if (measure.IsTargetRef)
{
m = measuresList[m.TargetMeasureID];
}
string AggregateFunction = null;
AggregateFunction = m.DWH_AggregateFunction.Replace("<DWH_Name>", "a." + m.DWH_Name);
int MeasureID = 0;
MatchCollection matches = Regex.Matches(m.DWH_AggregateFunction, @"\<[^\>]+\>");
foreach (Match ma in matches)
{
if (ma.Value.ToString().ToLower().Contains("id:"))
{
int Pos = ma.Value.ToString().IndexOf(">");
MeasureID = Convert.ToInt32(ma.Value.ToString().Substring(ma.Value.ToString().IndexOf(":") + 1, (Pos - 1) - ma.Value.ToString().IndexOf(":")));
}
else if (ma.Value.ToString().ToLower().Contains("param:") && ma.Value.ToString().ToLower().Contains("/"))
{
int Pos1, Pos2;
Pos1 = ma.Value.ToString().IndexOf(":");
Pos2 = ma.Value.ToString().IndexOf("/");
MeasureID = measure.FunctionMeasures[Convert.ToInt32(ma.Value.ToString().Substring(Pos1 + 1, Pos2 - Pos1 - 1)) - 1].MeasureID;
}
else if (ma.Value.ToString().ToLower().Contains("param:"))
{
int Pos1, Pos2;
Pos1 = ma.Value.ToString().IndexOf(":");
Pos2 = ma.Value.ToString().IndexOf(">");
MeasureID = measure.FunctionMeasures[Convert.ToInt32(ma.Value.ToString().Substring(Pos1 + 1, Pos2 - Pos1 - 1)) - 1].MeasureID;
}
if (MeasureID > 0)
{
Measure _measure = measuresList[MeasureID];
AggregateFunction = AggregateFunction.Replace(ma.Value, "a." + _measure.DWH_Name);
}
}
return(AggregateFunction);
}
