public Task <WriteResult> SetStreamMetadataAsync(string stream, int expectedMetastreamVersion, byte[] metadata, UserCredentials userCredentials = null)
{
Ensure.NotNullOrEmpty(stream, "stream");
if (SystemStreams.IsMetastream(stream))
{
throw new ArgumentException(string.Format("Setting metadata for metastream '{0}' is not supported.", stream), "stream");
}
var metaevent = new EventData(Guid.NewGuid(), SystemEventTypes.StreamMetadata, true, metadata ?? Empty.ByteArray, null);
var metastream = SystemStreams.MetastreamOf(stream);
var source = new TaskCompletionSource <WriteResult>();
var envelope = new EmbeddedResponseEnvelope(new EmbeddedResponders.AppendToStream(source, metastream, expectedMetastreamVersion));
var corrId = Guid.NewGuid();
_publisher.Publish(new ClientMessage.WriteEvents(corrId, corrId, envelope, false, metastream, expectedMetastreamVersion, metaevent.ConvertToEvent(), SystemAccount.Principal));
return(source.Task);
}
public Task<WriteResult> SetStreamMetadataAsync(string stream, int expectedMetastreamVersion, byte[] metadata, UserCredentials userCredentials = null)
{
Ensure.NotNullOrEmpty(stream, "stream");
if (SystemStreams.IsMetastream(stream))
throw new ArgumentException(string.Format("Setting metadata for metastream '{0}' is not supported.", stream), "stream");
var metaevent = new EventData(Guid.NewGuid(), SystemEventTypes.StreamMetadata, true, metadata ?? Empty.ByteArray, null);
var metastream = SystemStreams.MetastreamOf(stream);
var source = new TaskCompletionSource<WriteResult>();
var envelope = new EmbeddedResponseEnvelope(
new EmbeddedResponders.AppendToStream(source, metastream, expectedMetastreamVersion));
var corrId = Guid.NewGuid();
_publisher.PublishWithAuthentication(_authenticationProvider, GetUserCredentials(_settings, userCredentials), source.SetException, user => new ClientMessage.WriteEvents(corrId, corrId, envelope, false, metastream,
expectedMetastreamVersion, metaevent.ConvertToEvent(), user));
return source.Task;
}