private async Task SaveAsync(IAggregate aggregate, int expectedStreamRevision, string causationId, string conversationId)
{
if (aggregate == null)
{
throw new ArgumentNullException(nameof(aggregate));
}
foreach (DomainEvent uncommittedEvent in aggregate.UncommittedEvents)
{
EventStoreMessage eventStoreMessage = new EventStoreMessage(uncommittedEvent.EventId, uncommittedEvent.Body);
eventStoreMessage.Headers.Add(EventStoreMessageHeaderKey.EventStreamId, aggregate.EventStreamId);
if (!string.IsNullOrWhiteSpace(causationId))
{
eventStoreMessage.Headers.Add(EventStoreMessageHeaderKey.CausationId, causationId);
}
if (!string.IsNullOrWhiteSpace(conversationId))
{
eventStoreMessage.Headers.Add(EventStoreMessageHeaderKey.ConversationId, conversationId);
}
this.eventStoreProvider.AppendEvents(aggregate.EventStreamId, eventStoreMessage);
}
int committedEvents = await this.eventStoreProvider.CommitEventsAsync(aggregate.EventStreamId, expectedStreamRevision).ConfigureAwait(false);
aggregate.EventStreamRevision += committedEvents;
aggregate.UncommittedEvents.Clear();
}
public void AppendEvents(string eventStreamId, params object[] messages)
{
if (messages == null)
{
throw new ArgumentNullException(nameof(messages));
}
EventStoreMessage[] eventStoreMessages = new EventStoreMessage[messages.Length];
for (int i = 0; i < messages.Length; i++)
{
eventStoreMessages[i] = new EventStoreMessage(Guid.NewGuid(), messages[i]);
}
this.AppendEvents(eventStreamId, eventStoreMessages);
}
