public decimal EvalFunctionalCcyAmt(CashFlow cf, FinActivity activityMap, List <GenLedgerFinActivityJoin> genLedgerFinActivityJoin)
{
// get maps that have been computed for each bank statement item
var fp = new FunctionParser();
ParserDelegate TokenFAmountHandler = delegate(FunctionParseDelegateArgs e)
{
// e.FunctionArgs[0] will have value like, for example, 'A'
var result = from j in genLedgerFinActivityJoin
where j.FinActivity.Token == e.FunctionArgs[0]
select j.GenLedgerKey.FunctionalCcyAmt;
return(result.Sum());
};
fp.Add("FA", TokenFAmountHandler);
var parsed = fp.ParseToCriteria(activityMap.FunctionalCcyAmtExpr.Replace("{FA}", "FunctionalCcyAmt"));
try
{
object exprResult = cf.Evaluate(CriteriaOperator.Parse(parsed.Criteria, parsed.Parameters));
decimal famt = 0.00M;
if (exprResult != null && Decimal.TryParse(exprResult.ToString(), out famt))
{
return(famt);
}
return(0.00M);
}
catch (Exception ex)
{
throw new InvalidOperationException(string.Format(
"Error parsing map expression = '{1}', at FinActivity.Oid = '{0}', CashFlow.Oid = '{2}'.\r\n{3}",
activityMap.Oid, activityMap.FunctionalCcyAmtExpr, cf.Oid, ex.Message),
ex);
}
}