public async Task ProcessActionAsync <TMessage>(
TMessage message,
ISagaEvent <TMessage> sagaEvent,
ISagaContext context,
Func <TMessage, Task> onCompleted = null,
Func <TMessage, Task> onRejected = null)
{
var saga = (ISaga)sagaEvent;
await Semaphore.WaitAsync();
try
{
await sagaEvent.HandleAsync(message, context);
}
catch (Exception ex)
{
context.AddError(ex);
saga.Reject();
}
finally
{
Semaphore.Release();
}
if (saga.State is SagaState.Rejected)
{
await onRejected(message);
//compensate
}
else if (saga.State is SagaState.Completed)
{
await onCompleted(message);
}
}
