public OperatorReferencesBuilder(PredicateRouteOptions options)
{
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
_options = options;
}
private static TOperator SelectOperator <TOperator>(IList <TOperator> allOperators, PredicateRouteOptions options, string name)
where TOperator : Operator
{
var availableOperators = allOperators.Except(allOperators.Where(o => !string.IsNullOrEmpty(o.Key) &&
!options.AdditionalOperators.Contains(o.Key)));
if (!options.IncludeDefaultOperators)
{
availableOperators = availableOperators.Except(allOperators.Where(o => string.IsNullOrEmpty(o.Key)));
}
else
{
availableOperators = availableOperators.Except(allOperators.Where(o => string.IsNullOrEmpty(o.Key) &&
options.ExcludeDefaultOperators.Contains(o.Name)));
}
return(availableOperators.FirstOrDefault(o => string.Equals(o.Name, name, StringComparison.InvariantCultureIgnoreCase)));
}
private static PredicateOperator GetOperator(IPredicateSchemeProvider scheme, Type sourceType, PredicateRouteOptions options, string name)
{
return(SelectOperator(scheme.Operators.GetPredicatesForType(sourceType).ToList(), options, name));
}