async Task ProcessAttachment(TimeSpan?timeToBeReceived, SqlConnection connection, SqlTransaction transaction, string messageId, OutgoingStream outgoingStream, string name)
{
var outgoingStreamTimeToKeep = outgoingStream.TimeToKeep ?? endpointTimeToKeep;
var timeToKeep = outgoingStreamTimeToKeep(timeToBeReceived);
var expiry = DateTime.UtcNow.Add(timeToKeep);
try
{
await Process(connection, transaction, messageId, outgoingStream, name, expiry);
}
finally
{
outgoingStream.Cleanup?.Invoke();
}
}
async Task Process(SqlConnection connection, SqlTransaction transaction, string messageId, OutgoingStream outgoingStream, string name, DateTime expiry)
{
if (outgoingStream.AsyncStreamFactory != null)
{
var stream = await outgoingStream.AsyncStreamFactory().ConfigureAwait(false);
await ProcessStream(connection, transaction, messageId, name, expiry, stream);
return;
}
if (outgoingStream.StreamFactory != null)
{
await ProcessStream(connection, transaction, messageId, name, expiry, outgoingStream.StreamFactory());
return;
}
if (outgoingStream.StreamInstance != null)
{
await ProcessStream(connection, transaction, messageId, name, expiry, outgoingStream.StreamInstance);
return;
}
if (outgoingStream.AsyncBytesFactory != null)
{
var bytes = await outgoingStream.AsyncBytesFactory().ConfigureAwait(false);
await persister.SaveBytes(connection, transaction, messageId, name, expiry, bytes)
.ConfigureAwait(false);
return;
}
if (outgoingStream.BytesFactory != null)
{
await persister.SaveBytes(connection, transaction, messageId, name, expiry, outgoingStream.BytesFactory())
.ConfigureAwait(false);
return;
}
if (outgoingStream.BytesInstance != null)
{
await persister.SaveBytes(connection, transaction, messageId, name, expiry, outgoingStream.BytesInstance)
.ConfigureAwait(false);
return;
}
throw new Exception("No matching way to handle outgoingStream.");
}
