Akka Logging

Akka Toolkit has provided a akka.actor.ActorLogging component to support the logging feature. It is a trait useful with an Actor only and has a log function, as follows:

trait ActorLogging { this: Actor ⇒ 
  def log: LoggingAdapter = { 
    // only used in Actor, i.e. thread safe 
  } 
} 

We can use ActorLogging, as shown here:

class SimpleActor extends Actor with ActorLogger { 
  def receive = { 
    case _ =>  log.info("SimpleActor: receive inovoked.") 
  } 
}