Clean way to customize behaviors when receiving/sending messages

[jiahuijiang]

In the old ls-api, in order to log customized log messages, I just needed to implement MessageTracer for onError, onRead and onWrite. But in the new Launcher class, everything is pretty tightly coupled.
Is there a clean way I can customize the behaviors when receiving/sending messages?

[svenefftinge]

Yes, incoming messages are consumed through MessageConsumer, outgoing are through MessageProducer. You need to implement a logging version of them that delegate to the real implementation and install them into the chain.