private EventStoreMarker GetMarker()
{
EventStoreMarker marker;
if (!_markerReader.TryGet(_queueName, out marker))
marker = new EventStoreMarker();
return marker;
}
private void PerformDistribution(CancellationToken token)
{
while (!token.IsCancellationRequested)
{
var envelopes = _eventStore
.LoadSince(_lastKnownDispatchSituation.Stamp);
bool thereWasSomethingNew = false;
foreach (var envelope in envelopes)
{
var envelopeStamp = envelope.GetStamp();
var envelopeUniqueId = envelope.GetUniqueId();
if (_lastKnownDispatchSituation.KnownMessagesWithinStamp.Contains(envelopeUniqueId)) continue;
thereWasSomethingNew = true;
if (_lastKnownDispatchSituation.Stamp != envelopeStamp)
_lastKnownDispatchSituation = new EventStoreMarker(envelopeStamp);
_lastKnownDispatchSituation.KnownMessagesWithinStamp.Add(envelopeUniqueId);
_queueWriter.Enqueue(_serializer.Serialize(envelope));
}
if (thereWasSomethingNew)
{
_markerWriter.AddOrReplace(_queueName, _lastKnownDispatchSituation);
}
else
{
Thread.Sleep(500);
}
}
}
public void Run(CancellationToken token)
{
_lastKnownDispatchSituation = GetMarker();
PerformDistribution(token);
}