/// <inheritdoc/>
public async Task <CommittedAggregateEvents> CommitAggregateEvents(UncommittedAggregateEvents events, CancellationToken cancellationToken)
{
ThrowIfNoEventsToCommit(events);
try
{
using var session = await _streams.StartSessionAsync(cancellationToken : cancellationToken).ConfigureAwait(false);
return(await session.WithTransactionAsync(
async (transaction, cancel) =>
{
var eventLogSequenceNumber = (ulong)await _streams.DefaultEventLog.CountDocumentsAsync(
transaction,
_eventFilter.Empty,
cancellationToken: cancel).ConfigureAwait(false);
var aggregateRootVersion = events.ExpectedAggregateRootVersion.Value;
var committedEvents = new List <CommittedAggregateEvent>();
foreach (var @event in events)
{
var committedEvent = await _eventCommitter.CommitAggregateEvent(
transaction,
events.AggregateRoot,
aggregateRootVersion,
eventLogSequenceNumber,
DateTimeOffset.UtcNow,
events.EventSource,
_executionContextManager.Current,
@event,
cancel).ConfigureAwait(false);
committedEvents.Add(committedEvent);
eventLogSequenceNumber++;
aggregateRootVersion++;
}
await _aggregateRoots.IncrementVersionFor(
transaction,
events.EventSource,
events.AggregateRoot.Id,
events.ExpectedAggregateRootVersion,
aggregateRootVersion,
cancel).ConfigureAwait(false);
return new CommittedAggregateEvents(events.EventSource, events.AggregateRoot.Id, committedEvents);
},
cancellationToken : cancellationToken).ConfigureAwait(false));
}
catch (MongoWaitQueueFullException ex)
{
throw new EventStoreUnavailable("Mongo wait queue is full", ex);
}
}
