RetrieveNextBatch()
{
Seq <
Util.Try <ReplayCompletion> > msg;
using (var conn =
_connectionFactory.GetConnection())
{
msg = await Messages(conn, persistenceId,
opt.Item1,
toSequenceNr, batchSize)
.RunWith(
ExtSeq.Seq <Util.Try <ReplayCompletion> >(), mat);
}
var hasMoreEvents = msg.Count == batchSize;
//var lastMsg = msg.IsEmpty.LastOrDefault();
Util.Option <long> lastSeq = Util.Option <long> .None;
if (msg.IsEmpty == false)
{
lastSeq = msg.Last.Get().Repr.SequenceNr;
}
FlowControlEnum nextControl = FlowControlEnum.Unknown;
if ((lastSeq.HasValue &&
lastSeq.Value >= toSequenceNr) || opt.Item1 > toSequenceNr)
{
nextControl = FlowControlEnum.Stop;
}
else if (hasMoreEvents)
{
nextControl = FlowControlEnum.Continue;
}
else if (refreshInterval.HasValue == false)
{
nextControl = FlowControlEnum.Stop;
}
else
{
nextControl = FlowControlEnum.ContinueDelayed;
}
long nextFrom = opt.Item1;
if (lastSeq.HasValue)
{
nextFrom = lastSeq.Value + 1;
}
return new Util.Option <((long, FlowControlEnum), Seq <Util.Try <ReplayCompletion> >)>((
(nextFrom, nextControl), msg));
}
RetrieveNextBatch()
{
Seq <
Util.Try <ReplayCompletion> > msg;
using (var conn =
_connectionFactory.GetConnection())
{
var waited = Messages(conn, persistenceId,
opt.Item1,
toSequenceNr, batchSize);
msg = await waited
.RunWith(
ExtSeq.Seq <Util.Try <ReplayCompletion> >(), mat);
}
var hasMoreEvents = msg.Count == batchSize;
var lastMsg = msg.LastOrDefault();
Util.Option <long> lastSeq = Util.Option <long> .None;
if (lastMsg != null && lastMsg.IsSuccess)
{
lastSeq = lastMsg.Success.Select(r => r.repr.SequenceNr);
}
else if (lastMsg != null && lastMsg.Failure.HasValue)
{
throw lastMsg.Failure.Value;
}
var hasLastEvent =
lastSeq.HasValue &&
lastSeq.Value >= toSequenceNr;
FlowControl nextControl = null;
if (hasLastEvent || opt.Item1 > toSequenceNr)
{
nextControl = FlowControl.Stop.Instance;
}
else if (hasMoreEvents)
{
nextControl = FlowControl.Continue.Instance;
}
else if (refreshInterval.HasValue == false)
{
nextControl = FlowControl.Stop.Instance;
}
else
{
nextControl = FlowControl.ContinueDelayed
.Instance;
}
long nextFrom = 0;
if (lastSeq.HasValue)
{
nextFrom = lastSeq.Value + 1;
}
else
{
nextFrom = opt.Item1;
}
return(new Util.Option <((long, FlowControl), Seq <Util.Try <ReplayCompletion> >)>((
(nextFrom, nextControl), msg)));
}
