public void DeleteStream(string streamId)
{
lock (_commits)
{
InMemoryCommit[] commits = _commits.Where(c => c.StreamId == streamId).ToArray();
foreach (var commit in commits)
{
_commits.Remove(commit);
}
ISnapshot[] snapshots = _snapshots.Where(s => s.StreamId == streamId).ToArray();
foreach (var snapshot in snapshots)
{
_snapshots.Remove(snapshot);
}
IStreamHead streamHead = _heads.SingleOrDefault(s => s.StreamId == streamId);
if (streamHead != null)
{
_heads.Remove(streamHead);
}
}
}
public bool AddSnapshot(ISnapshot snapshot)
{
lock (_commits)
{
IStreamHead currentHead = _heads.FirstOrDefault(h => h.StreamId == snapshot.StreamId);
if (currentHead == null)
{
return(false);
}
// if the snapshot is already there do NOT add it (follow the SQL implementation)
// and the original GetSnapshot behavior which was to return the first one that was
// added to the collection
if (_snapshots.Any(s => s.StreamId == snapshot.StreamId && s.StreamRevision == snapshot.StreamRevision))
{
return(false);
}
_snapshots.Add(snapshot);
_heads.Remove(currentHead);
_heads.Add(new StreamHead(currentHead.BucketId, currentHead.StreamId, currentHead.HeadRevision, snapshot.StreamRevision));
}
return(true);
}
