protected void OnEventInternal(DurableEvent e, Func <bool> handler = null)
{
var initialClock = clock;
var initialEvent = lastEventHandled;
lastEventHandled = e;
if (HasSharedClockEntry)
{
clock = clock.Set(e.LocalLogId, e.LocalSequenceNr);
if (e.EmitterId != Id)
{
clock = clock.Merge(e.VectorTimestamp);
}
}
else
{
if (e.EmitterId != Id)
{
clock = clock.Update(e.VectorTimestamp);
}
else if (isRecovering)
{
clock = clock.Merge(e.VectorTimestamp);
}
}
if (handler != null && !handler())
{
clock = initialClock;
lastEventHandled = initialEvent;
}
}
private void ReceiveEvent(DurableEvent e)
{
OnEventInternal(e, () => OnEvent(e.Payload));
if (!IsRecovering)
{
ConditionChanged(e.VectorTimestamp);
}
}
public bool Apply(DurableEvent e)
{
foreach (var filter in Filters)
{
if (filter.Apply(e))
{
return(true);
}
}
return(false);
}
public Snapshot(object payload, string emitterId, DurableEvent lastEvent, VectorTime currentTime, long sequenceNr,
ImmutableArray <DeliveryAttempt> deliveryAttempts = default(ImmutableArray <DeliveryAttempt>),
ImmutableArray <PersistOnEventRequest> persistOnEventRequests = default(ImmutableArray <PersistOnEventRequest>))
{
Payload = payload;
EmitterId = emitterId;
LastEvent = lastEvent;
CurrentTime = currentTime;
SequenceNr = sequenceNr;
DeliveryAttempts = deliveryAttempts;
PersistOnEventRequests = persistOnEventRequests;
Metadata = new SnapshotMetadata(EmitterId, LastEvent.LocalSequenceNr);
}
private void Zeroize()
{
lastEventHandled = new DurableEvent(null, Id);
clock = new VectorClock(Id, VectorTime.Zero);
}
protected void LoadedSnapshot(Snapshot snapshot)
{
lastEventHandled = snapshot.LastEvent;
clock = new VectorClock(clock.ProcessId, snapshot.CurrentTime);
}
protected void OnEventInternal(DurableEvent e, Exception cause)
{
lastEventHandled = e;
}
public bool Apply(DurableEvent e)
{
return(true);
}
protected override void ReceiveEvent(DurableEvent e)
{
base.ReceiveEvent(e);
}