private AppendResult AppendToStreamInternal(
string streamId,
int expectedVersion,
NewStreamMessage[] messages)
{
InMemoryStream inMemoryStream;
if (expectedVersion == ExpectedVersion.NoStream || expectedVersion == ExpectedVersion.Any)
{
if (_streams.TryGetValue(streamId, out inMemoryStream))
{
inMemoryStream.AppendToStream(expectedVersion, messages);
}
else
{
inMemoryStream = new InMemoryStream(
streamId,
_allStream,
_getUtcNow,
_onStreamAppended,
() => _currentPosition++);
inMemoryStream.AppendToStream(expectedVersion, messages);
_streams.Add(streamId, inMemoryStream);
}
return(new AppendResult(inMemoryStream.CurrentVersion));
}
if (!_streams.TryGetValue(streamId, out inMemoryStream))
{
throw new WrongExpectedVersionException(
ErrorMessages.AppendFailedWrongExpectedVersion(streamId, expectedVersion));
}
inMemoryStream.AppendToStream(expectedVersion, messages);
return(new AppendResult(inMemoryStream.CurrentVersion));
}
private void DeleteStream(string streamId, int expectedVersion)
{
if (!_streams.ContainsKey(streamId))
{
if (expectedVersion >= 0)
{
throw new WrongExpectedVersionException(
ErrorMessages.AppendFailedWrongExpectedVersion(streamId, expectedVersion));
}
return;
}
if (expectedVersion != ExpectedVersion.Any &&
_streams[streamId].Messages.Last().StreamVersion != expectedVersion)
{
throw new WrongExpectedVersionException(
ErrorMessages.AppendFailedWrongExpectedVersion(streamId, expectedVersion));
}
InMemoryStream inMemoryStream = _streams[streamId];
_streams.Remove(streamId);
inMemoryStream.DeleteAllEvents(ExpectedVersion.Any);
var streamDeletedEvent = CreateStreamDeletedMessage(streamId);
AppendToStreamInternal(DeletedStreamId, ExpectedVersion.Any, new[] { streamDeletedEvent });
}
protected override Task AppendToStreamInternal(
string streamId,
int expectedVersion,
NewStreamEvent[] events,
CancellationToken cancellationToken = new CancellationToken())
{
if (_isDisposed)
{
throw new ObjectDisposedException(nameof(InMemoryEventStore));
}
_lock.EnterWriteLock();
try
{
InMemoryStream inMemoryStream;
// Should only add stream if NoStream
if (expectedVersion == ExpectedVersion.NoStream || expectedVersion == ExpectedVersion.Any)
{
if (_streams.TryGetValue(streamId, out inMemoryStream))
{
inMemoryStream.AppendToStream(expectedVersion, events);
}
else
{
inMemoryStream = new InMemoryStream(
streamId,
_allStream,
_getUtcNow,
_onStreamAppended);
inMemoryStream.AppendToStream(expectedVersion, events);
_streams.TryAdd(streamId, inMemoryStream);
}
return(Task.FromResult(0));
}
if (!_streams.TryGetValue(streamId, out inMemoryStream))
{
throw new WrongExpectedVersionException(
Messages.AppendFailedWrongExpectedVersion(streamId, expectedVersion));
}
inMemoryStream.AppendToStream(expectedVersion, events);
return(Task.FromResult(0));
}
finally
{
_lock.ExitWriteLock();
}
}
