question: public QoSHandler ( final Vertx vertx , final ResourceStorage storage , final String qosSettingsPath , final Map < String , Object > properties , String prefix ) { this . vertx = vertx ; this . storage = storage ; this . qosSettingsUri = qosSettingsPath ; this . properties = properties ; this . prefix = prefix ; qosRules = new ArrayList < > ( ) ; setMBeanServer ( ManagementFactory . getPlatformMBeanServer ( ) ) ; loadQoSSettings ( ) ; registerUpdateHandler ( ) ; }
target:  Creates a new instance of the QoSHandler.