public IList <UniqueLearnerNumber> GetUlnLookup(IList <long?> searchUlns, CancellationToken cancellationToken)
{
var uniqueUlns = searchUlns.Distinct();
var unknownUlns = uniqueUlns.Where(uln => Ulns.All(u => u.ULN != uln)).ToList();
if (unknownUlns.Any())
{
Ulns.AddRange(_referenceDataRepository.GetUlnLookup(unknownUlns, cancellationToken));
}
return(Ulns.Where(x => searchUlns.Contains(x.ULN)).ToList());
}
public IEnumerable <long> GetUlnLookup(IEnumerable <long?> searchUlns, CancellationToken cancellationToken)
{
var uniqueUlns = searchUlns.Distinct().ToList();
var unknownUlns = uniqueUlns.Where(uln => Ulns.All(u => u != uln)).ToList();
if (!unknownUlns.Any())
{
return(Ulns.Where(u => uniqueUlns.Contains(u)));
}
PopulateUlnLookup(unknownUlns, cancellationToken);
return(Ulns.Where(u => unknownUlns.Contains(u)));
}