public IObservable <ICommit> ReadAllFromCheckpoint(GetEventStoreCheckpoint checkpoint)
{
const int batchSize = 512;
var start = ((int?)checkpoint ?? 0);
const string stream = "$et-" + GetEventStoreCommitAttempt.EventType;
return(Observable.Create <ICommit>(async observer =>
{
bool isEndOfStream;
do
{
StreamEventsSlice slice =
await _connection.ReadStreamEventsForwardAsync(stream, start, batchSize, true);
var commits = (from resolved in slice.Events
where false == IsSystemEvent(resolved)
let dto = DeserializeEvent(resolved)
let commit = BuildCommit(dto, resolved)
select commit).ToList();
commits.ForEach(observer.OnNext);
start += batchSize;
isEndOfStream = slice.IsEndOfStream;
} while (false == isEndOfStream);
observer.OnCompleted();
}));
}
public IObservable <ICommit> GetFrom(string checkpointToken = null)
{
ThrowWhenDisposed();
Logger.Debug(Messages.GettingAllCommitsFromCheckpoint, checkpointToken);
GetEventStoreCheckpoint checkpoint = GetEventStoreCheckpoint.Parse(checkpointToken);
var reader = new EventReader(_connection, _serializer);
return(reader.ReadAllFromCheckpoint(checkpoint));
}
public ICheckpoint GetCheckpoint(string checkpointToken = null)
{
return(GetEventStoreCheckpoint.Parse(checkpointToken));
}
