private List<Bucket> getFilteredBucketsAtIndex(String index, Date fromDate,
Date toDate) {
ListsBucketsFiltered listsBucketsFiltered = getListsBucketsFiltered();
if (index == null)
return listsBucketsFiltered.listFilteredBuckets(fromDate, toDate);
else
return listsBucketsFiltered.listFilteredBucketsAtIndex(index, fromDate,
toDate);
}