EventHandler.kt

private val eventHandler = object : EventHandler {
        override fun onEvent(mqttEvent: MqttEvent) {
            when (mqttEvent) {
                is MqttConnectSuccessEvent -> {
                    // handle MqttConnectSuccessEvent
                }
                is MqttConnectFailureEvent -> {
                    // handle MqttConnectFailureEvent
                }
                is MqttSubscribeSuccessEvent -> {
                    // handle MqttSubscribeSuccessEvent
                }
                else -> {
                    // handle other events
                }
            }
        }
    }