public override IEnumerable <T> GetDynamicPartitions()
{
if (_source is T[] array)
{
return(Progressor <T> .CreateFromArray(array));
}
if (_source is IList <T> list)
{
return(Progressor <T> .CreateFromIList(list));
}
return(Progressor <T> .CreateFromIEnumerable(_source));
}
public override IList <IEnumerator <T> > GetPartitions(int partitionCount)
{
var list = new List <IEnumerator <T> >(partitionCount);
var source = Progressor <T> .CreateFromIEnumerable(_source);
for (var index = 0; index < partitionCount; index++)
{
list.Add(Enumerator());
}
return(list.AsReadOnly());
IEnumerator <T> Enumerator()
{
foreach (var item in source)
{
yield return(item);
}
}
}
public override IList <IEnumerator <KeyValuePair <long, T> > > GetOrderablePartitions(int partitionCount)
{
var list = new List <IEnumerator <KeyValuePair <long, T> > >(partitionCount);
var source = Progressor <T> .CreateFromIEnumerable(_source);
for (var index = 0; index < partitionCount; index++)
{
list.Add(Enumerator(index));
}
return(list.AsReadOnly());
IEnumerator <KeyValuePair <long, T> > Enumerator(int index)
{
var subIndex = 0;
foreach (var item in source)
{
yield return(new KeyValuePair <long, T>(NumericHelper.BuildInt64(index, subIndex), item));
subIndex++;
}
}
}
public override IEnumerable <T> GetDynamicPartitions()
{
return(Progressor <T> .CreateFromIEnumerable(_source));
}