void ProcessMessage(MessageTransportContext context)
{
var dispatched = false;
try
{
_dispatcher(context.Unpacked);
dispatched = true;
}
catch (ThreadAbortException)
{
// we are shutting down. Stop immediately
return;
}
catch (Exception dispatchEx)
{
// if the code below fails, it will just cause everything to be reprocessed later,
// which is OK (duplication manager will handle this)
SystemObserver.Notify(new MessageDispatchFailed(context, context.QueueName, dispatchEx));
// quarantine is atomic with the processing
_inbox.TryNotifyNack(context);
}
if (!dispatched)
{
return;
}
try
{
_inbox.AckMessage(context);
// 3rd - notify.
SystemObserver.Notify(new MessageAcked(context));
}
catch (ThreadAbortException)
{
// nothing. We are going to sleep
}
catch (Exception ex)
{
// not a big deal. Message will be processed again.
SystemObserver.Notify(new MessageAckFailed(ex, context));
}
}