protected void registerSelf() {
        publishSelf();
        serviceRegistry.get().registerService(getServiceDescription());
        serviceRegistry.get().subscribe((pair, err) -> {
            serviceEvent(pair.car(), pair.cdr(), err);
        });
        heartBeat();
        Log.Info(this, "registered at serviceRegistry.");
    }
protected void registerSelf ( ) { publishSelf ( ) ; serviceRegistry . get ( ) . registerService ( getServiceDescription ( ) ) ; serviceRegistry . get ( ) . subscribe ( ( pair , err ) -> { serviceEvent ( pair . car ( ) , pair . cdr ( ) , err ) ; } ) ; heartBeat ( ) ; Log . Info ( this , "registered at serviceRegistry." ) ; }
register at service registry