Realtime coordination between the passive update of the item from the network and the active update from the UI

[Giovanni_Fabiani (fabgio)]

Hi all,
I’ve been dealing with a realtime state onff status of an item. I tackled the question as such:

  public void initialize() {
        Bridge bridge = getBridge();
        if (bridge == null || !(bridge.getHandler() instanceof MerossBridgeHandler)) {
            updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "Bridge not set");
            return;
        }
        config = getConfigAs(MerossBulbAndPlugConfiguration.class);
        scheduler.execute(() -> {
            int onlineStatus = manager.onlineStatus(config.deviceName);
            if (onlineStatus != MerossEnum.OnlineStatus.ONLINE.value()) {
                updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "Device offline");
            } else if (MerossBridgeHandler.connector.getDevUUIDByDevName(config.deviceName).isEmpty()) {
                updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
                        "No device found with that name");
            } else {
                updateStatus(ThingStatus.ONLINE);
                CompletableFuture.runAsync(() -> MerossBridgeHandler.connector.fetchDevicesAndSave());
                MerossBridgeHandler.connector.logout();
            }
        });
        updateScheduler.scheduleWithFixedDelay(() -> updateChannelStateAsync(), 1, 1, TimeUnit.SECONDS);
        try {
            updateScheduler.awaitTermination(3, TimeUnit.SECONDS);
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
    }

    private void updateChannelStateAsync() {
        CompletableFuture.supplyAsync(() -> manager.togglexOnOffStatus(config.deviceName))
                .thenAccept(this::updateChannelState);
    }

    void updateChannelState(int status) {
        updateState(CHANNEL_TOGGLEX, status == 0 ? StringType.valueOf("Off") : StringType.valueOf("On"));
    }

    @Override
    public void handleCommand(ChannelUID channelUID, Command command) {
        if (channelUID.getId().equals(CHANNEL_TOGGLEX)) {
            handleTogglexChannel(channelUID, command);
        } else {
            logger.debug("Unsupported channelUID {}", channelUID);
        }
    }

    private void handleTogglexChannel(ChannelUID channelUID, Command command) {
        if (command instanceof StringType) {
            switch (command.toString()) {
                case "ON" ->
                    manager.executeCommand(config.deviceName, MerossEnum.Namespace.CONTROL_TOGGLEX.name(), "ON");
                case "OFF" ->
                    manager.executeCommand(config.deviceName, MerossEnum.Namespace.CONTROL_TOGGLEX.name(), "OFF");
            }
    } else {
            logger.debug("Unsupported command {} for channel {}", command, channelUID);
        }
    }
}

The togglexOnOffStatus method retrieves the item status from a network json. I run it in a scheduler with one second frequency, The question is that when I interact with the UI it becomes unresponsive. I wonder what is the best practice to coordinate the passive update of the item from the network with the active update from the UI?
Thanks