public static bool Apply(string op, LdValue uValue, LdValue cValue)
{
try
{
if (uValue.IsNull || cValue.IsNull)
{
return(false);
}
int comparison;
switch (op)
{
case "in":
if (uValue.Equals(cValue))
{
return(true);
}
if (uValue.IsString || cValue.IsString)
{
return(StringOperator(uValue, cValue, (a, b) => a.Equals(b)));
}
if (TryCompareNumericValues(uValue, cValue, out comparison))
{
return(comparison == 0);
}
break;
case "endsWith":
return(StringOperator(uValue, cValue, (a, b) => a.EndsWith(b)));
case "startsWith":
return(StringOperator(uValue, cValue, (a, b) => a.StartsWith(b)));
case "matches":
return(StringOperator(uValue, cValue, (a, b) => new Regex(b).IsMatch(a)));
case "contains":
return(StringOperator(uValue, cValue, (a, b) => a.Contains(b)));
case "lessThan":
if (TryCompareNumericValues(uValue, cValue, out comparison))
{
return(comparison < 0);
}
break;
case "lessThanOrEqual":
if (TryCompareNumericValues(uValue, cValue, out comparison))
{
return(comparison <= 0);
}
break;
case "greaterThan":
if (TryCompareNumericValues(uValue, cValue, out comparison))
{
return(comparison > 0);
}
break;
case "greaterThanOrEqual":
if (TryCompareNumericValues(uValue, cValue, out comparison))
{
return(comparison >= 0);
}
break;
case "before":
return(DateOperator(uValue, cValue, (a, b) => DateTime.Compare(a, b) < 0));
case "after":
return(DateOperator(uValue, cValue, (a, b) => DateTime.Compare(a, b) > 0));
case "semVerEqual":
return(SemVerOperator(uValue, cValue, (a, b) => a.ComparePrecedence(b) == 0));
case "semVerLessThan":
return(SemVerOperator(uValue, cValue, (a, b) => a.ComparePrecedence(b) < 0));
case "semVerGreaterThan":
return(SemVerOperator(uValue, cValue, (a, b) => a.ComparePrecedence(b) > 0));
default:
return(false);
}
}
catch (Exception e)
{
Log.DebugFormat("Got a possibly expected exception when applying operator: {0} to user Value: {1} and feature flag value: {2}. Exception message: {3}",
e,
op,
uValue,
cValue,
Util.ExceptionMessage(e));
}
return(false);
}
