internal void PrepareRollups(DocumentsOperationContext context, DateTime currentTime, long take, long start, List <RollupState> states, out Stopwatch duration)
{
duration = Stopwatch.StartNew();
var table = context.Transaction.InnerTransaction.OpenTable(RollupSchema, TimeSeriesRollupTable);
if (table == null)
{
return;
}
var currentTicks = currentTime.Ticks;
using (DocumentsStorage.GetEtagAsSlice(context, start, out var startSlice))
{
foreach (var item in table.SeekForwardFrom(RollupSchema.Indexes[NextRollupIndex], startSlice, 0))
{
if (take <= 0)
{
return;
}
var rollUpTime = DocumentsStorage.TableValueToEtag((int)RollupColumns.NextRollup, ref item.Result.Reader);
if (rollUpTime > currentTicks)
{
return;
}
DocumentsStorage.TableValueToSlice(context, (int)RollupColumns.Key, ref item.Result.Reader, out var key);
SplitKey(key, out var docId, out var name);
name = context.DocumentDatabase.DocumentsStorage.TimeSeriesStorage.GetOriginalName(context, docId, name);
var state = new RollupState
{
Key = key,
DocId = docId,
Name = name,
Collection = DocumentsStorage.TableValueToId(context, (int)RollupColumns.Collection, ref item.Result.Reader),
NextRollup = new DateTime(rollUpTime),
RollupPolicy = DocumentsStorage.TableValueToString(context, (int)RollupColumns.PolicyToApply, ref item.Result.Reader),
Etag = DocumentsStorage.TableValueToLong((int)RollupColumns.Etag, ref item.Result.Reader),
ChangeVector = DocumentsStorage.TableValueToChangeVector(context, (int)RollupColumns.ChangeVector, ref item.Result.Reader)
};
if (_logger.IsInfoEnabled)
{
_logger.Info($"{state} is prepared.");
}
states.Add(state);
take--;
}
}
}
