private static MongoEventCommit BuildCommit(Guid commitId, string streamName, long expectedVersion, ICollection <EventData> events)
{
var commitEvents = new MongoEvent[events.Count];
var i = 0;
foreach (var e in events)
{
var mongoEvent = MongoEvent.FromEventData(e);
commitEvents[i++] = mongoEvent;
}
var mongoCommit = new MongoEventCommit
{
Id = commitId,
Events = commitEvents,
EventsCount = events.Count,
EventStream = streamName,
EventStreamOffset = expectedVersion,
Timestamp = EmptyTimestamp
};
return(mongoCommit);
}
public static IEnumerable <StoredEvent> Filtered(this MongoEventCommit commit, long streamPosition)
{
var eventStreamOffset = commit.EventStreamOffset;
var commitTimestamp = commit.Timestamp;
var commitOffset = 0;
foreach (var @event in commit.Events)
{
eventStreamOffset++;
if (eventStreamOffset >= streamPosition)
{
var eventData = @event.ToEventData();
var eventPosition = new StreamPosition(commitTimestamp, commitOffset, commit.Events.Length);
yield return(new StoredEvent(commit.EventStream, eventPosition, eventStreamOffset, eventData));
}
commitOffset++;
}
}