private IReadOnlyList <string> readAllValuesFrom(DirectoryReader reader, string field)
{
var rawValues = reader.ReadRawValuesFrom(field);
IEnumerable <string> enumerable;
if (_adapter.IsFloatField(field))
{
enumerable = rawValues.Select(term => term.TryParseFloat())
.Where(val => val.HasValue)
.Select(val => val.Value)
.Distinct()
.OrderBy(val => val)
.Select(val => val.ToString(Str.Culture));
}
else if (_adapter.IsIntField(field))
{
enumerable = rawValues.Select(term => term.TryParseInt())
.Where(val => val.HasValue)
.Select(val => val.Value)
.Distinct()
.OrderBy(val => val)
.Select(val => val.ToString(Str.Culture));
}
else
{
enumerable = rawValues.Select(term => term.Utf8ToString())
.Distinct()
.OrderBy(Str.Comparer);
}
var result = enumerable.ToReadOnlyList();
return(result);
}
