public void RebuildStarted(IProjection projection, Int64 lastCommitId)
{
var projectionName = projection.GetCommonName();
_checkpoints.UpdateOne(
Builders <Checkpoint> .Filter.Eq("_id", projectionName),
Builders <Checkpoint> .Update.Set(x => x.RebuildStart, DateTime.UtcNow)
.Set(x => x.RebuildStop, null)
.Set(x => x.RebuildTotalSeconds, 0)
.Set(x => x.RebuildActualSeconds, 0)
.Set(x => x.Current, null)
.Set(x => x.Events, 0)
.Set(x => x.Details, null)
);
//Check if some commit was deleted and lastCommitId in Eventstore
//is lower than the latest dispatched commit.
var trackerLastValue = _checkpointTracker[projection.GetCommonName()];
var lastCommitIdLong = lastCommitId;
if (trackerLastValue > 0)
{
//new projection, it has no dispatched checkpoint.
_slotRebuildTracker[_projectionToSlot[projectionName]] = true;
}
if (lastCommitIdLong < trackerLastValue)
{
_checkpointTracker[projection.GetCommonName()] = lastCommitId;
_checkpoints.UpdateOne(
Builders <Checkpoint> .Filter.Eq("_id", projectionName),
Builders <Checkpoint> .Update.Set(x => x.Value, lastCommitId));
}
_higherCheckpointToDispatchInRebuild = Math.Max(
_higherCheckpointToDispatchInRebuild,
Math.Min(trackerLastValue, lastCommitIdLong));
}
void Add(IProjection projection, Int64 defaultValue)
{
var id = projection.GetCommonName();
var projectionSignature = projection.GetSignature();
var projectionSlotName = projection.GetSlotName();
var checkPoint = _checkpoints.FindOneById(id) ??
new Checkpoint(id, defaultValue, projectionSignature);
//Check if some projection is changed and rebuild is not active
if (
checkPoint.Signature != projectionSignature &&
!RebuildSettings.ShouldRebuild)
{
_checkpointErrors.Add(String.Format("Projection {0} [slot {1}] has signature {2} but checkpoint on database has signature {3}.\n REBUILD NEEDED",
id, projectionSlotName, projectionSignature, checkPoint.Signature));
}
else
{
checkPoint.Signature = projectionSignature;
}
checkPoint.Slot = projectionSlotName;
checkPoint.Active = true;
_checkpoints.Save(checkPoint, checkPoint.Id);
_checkpointTracker[id] = checkPoint.Value;
_projectionToSlot[id] = checkPoint.Slot;
}
public Int64 GetCheckpoint(IProjection projection)
{
var id = projection.GetCommonName();
if (_checkpointTracker.ContainsKey(id))
{
return(_checkpointTracker[id]);
}
return(0);
}
public Int64 GetCurrent(IProjection projection)
{
var checkpoint = _checkpoints.FindOneById(projection.GetCommonName());
if (checkpoint == null)
{
return(0);
}
return(checkpoint.Current ?? 0);
}
public string GetCurrent(IProjection projection)
{
var checkpoint = _checkpoints.FindOneById(projection.GetCommonName());
if (checkpoint == null)
{
return(null);
}
return(checkpoint.Current);
}
void Add(IProjection projection, string defaultValue)
{
var id = projection.GetCommonName();
var checkPoint = _checkpoints.FindOneById(id) ?? new Checkpoint(id, defaultValue);
checkPoint.Signature = projection.GetSignature();
checkPoint.Slot = projection.GetSlotName();
checkPoint.Active = true;
_checkpoints.Save(checkPoint);
_checkpointTracker[id] = checkPoint.Value;
_projectionToSlot[id] = checkPoint.Slot;
}
public void event_is_dispatched()
{
CreateAggregate();
//prepare the tracker
_tracker.SetCheckpoint(_projection.GetCommonName(), 1); //Set the projection as dispatched
var status = sut.Rebuild();
WaitForFinish(status);
Assert.That(_writer.All.Count(), Is.EqualTo(1));
}
public void RebuildEnded(IProjection projection, ProjectionMetrics.Meter meter)
{
var projectionName = projection.GetCommonName();
_slotRebuildTracker[_projectionToSlot[projectionName]] = false;
var checkpoint = _checkpoints.FindOneById(projectionName);
checkpoint.RebuildStop = DateTime.UtcNow;
checkpoint.RebuildTotalSeconds = (long)(checkpoint.RebuildStop - checkpoint.RebuildStart).Value.TotalSeconds;
checkpoint.Events = meter.TotalEvents;
checkpoint.RebuildActualSeconds = (double)meter.TotalElapsed / TimeSpan.TicksPerSecond;
checkpoint.Details = meter;
_checkpoints.Save(checkpoint);
}
public void event_is_dispatched()
{
CreateAggregate();
ConcurrentCheckpointTracker thisTracker = new ConcurrentCheckpointTracker(_db);
thisTracker.SetUp(new[] { _projection1, _projection3 }, 1, false);
thisTracker.UpdateSlotAndSetCheckpoint(_projection1.GetSlotName(), new[] { _projection1.GetCommonName() }, 1);
thisTracker.UpdateSlotAndSetCheckpoint(_projection3.GetSlotName(), new[] { _projection3.GetCommonName() }, 1);
var status = sut.Rebuild();
WaitForFinish(status);
Assert.That(_writer1.All.Count(), Is.EqualTo(1));
Assert.That(_writer3.All.Count(), Is.EqualTo(1));
}
public void event_is_dispatched()
{
CreateAggregate();
ConcurrentCheckpointTracker thisTracker = new ConcurrentCheckpointTracker(_db);
thisTracker.SetUp(new[] { _projection1, _projection3 }, 1, false);
thisTracker.UpdateSlotAndSetCheckpoint(_projection1.GetSlotName(), new[] { _projection1.GetCommonName() }, 1);
thisTracker.UpdateSlotAndSetCheckpoint(_projection3.GetSlotName(), new[] { _projection3.GetCommonName() }, 1);
var status = sut.Rebuild();
WaitForFinish(status);
var coll = _db.GetCollection <BsonDocument>("Sample");
var allRecord = coll.FindAll().ToList();
Assert.That(allRecord, Has.Count.EqualTo(1));
}
