UpdaterRestartDroneCommand.java 文件源码

@Override
public void execute(Context service) 
{
       delegate.setRestartingDroneState(IndicatorState.ACTIVE, 0, "");

    WifiManager wifi = (WifiManager) context.getContext().getSystemService(Context.WIFI_SERVICE);
    WifiInfo wifiInfo = wifi.getConnectionInfo();

    ssid = wifiInfo.getSSID();
    context.setDroneNetworkSSID(ssid);
    droneRestarted = false;

    Log.d(getCommandName(), "Current connection ssid: " + ssid);

    // We need this in order to prevent disconnection due to device inactivity
    WifiLock lock = wifi.createWifiLock("DRONE_RESTART_LOCK");
    lock.acquire();

    if (context.getDroneFirmwareVersion().startsWith("2.")) {
        if (!TelnetUtils.executeRemotely(DroneConfig.getHost(), DroneConfig.TELNET_PORT, "reboot\n")) {
            delegate.setRestartingDroneState(IndicatorState.ACTIVE, 0, context.getContext().getString(R.string.update_file_sent_successfully_please_restart_drone));
        }
    } else {
        delegate.setRestartingDroneState(IndicatorState.ACTIVE, 0, context.getContext().getString(R.string.update_file_sent_successfully_please_restart_drone));
    }

    while (!context.isShuttingDown()) {

        if (!droneRestarted) {  
            if (FTPUtils.downloadFile(service, DroneConfig.getHost(), DroneConfig.getFtpPort(), "version.txt") == null) {
                droneRestarted = true;
                Log.d(getCommandName(), "Wifi signal lost. Marking as restarted");
                onSuccess();
                break;
            } else {
                Log.d(getCommandName(), "Wifi still enabled");
            }
        } 


        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
            break;
        }

        Log.d(getCommandName(), "Checking connection...");
    }

    lock.release();
}