import org.eclipse.smarthome.config.discovery.AbstractDiscoveryService; //导入依赖的package包/类
/**
 * Starts background scanning for attached devices.
 */
@Override
protected void startBackgroundDiscovery() {
    if (scanningJob == null || scanningJob.isCancelled()) {
        logger.debug("start background scanning job at intervall {}s", SCAN_INTERVAL);
        scanningJob = AbstractDiscoveryService.scheduler.scheduleWithFixedDelay(() -> {
            if (bridgeHandler.getWebInterface() != null) {
                logger.debug("start background scan on bridge {}", bridgeHandler.getThing().getUID());
                FritzAhaDiscoveryCallback callback = new FritzAhaDiscoveryCallback(bridgeHandler.getWebInterface(),
                        this);
                bridgeHandler.getWebInterface().asyncGet(callback);
            }
        }, INITIAL_DELAY, SCAN_INTERVAL, TimeUnit.SECONDS);
    } else {
        logger.debug("scanningJob active");
    }
}
 

import org.eclipse.smarthome.config.discovery.AbstractDiscoveryService; //导入依赖的package包/类
@Override
protected void startBackgroundDiscovery() {

    logger.trace("Start HEOS Player background discovery");

    if (scanningJob == null || scanningJob.isCancelled()) {
        this.scanningJob = AbstractDiscoveryService.scheduler.scheduleWithFixedDelay(this.scanningRunnable,
                INITIAL_DELAY, SCAN_INTERVAL, TimeUnit.SECONDS);
    }
    logger.trace("scanningJob active");

    // Debug
    // System.out.println("start background discover");

}
 

import org.eclipse.smarthome.config.discovery.AbstractDiscoveryService; //导入依赖的package包/类
@Override
protected void activate(Map<String, Object> configProperties) {
    logger.debug("Config Parameters: {}", configProperties);
    Util.init(AbstractDiscoveryService.scheduler);
    discoveryManager = DiscoveryManager.getInstance();
    discoveryManager.setPairingLevel(DiscoveryManager.PairingLevel.ON);
    discoveryManager.addListener(this);
    super.activate(configProperties); // starts background discovery
}
 

import org.eclipse.smarthome.config.discovery.AbstractDiscoveryService; //导入依赖的package包/类
@Override
protected void startBackgroundDiscovery() {
    if (mZWayDeviceScanningJob == null || mZWayDeviceScanningJob.isCancelled()) {
        logger.debug("Starting background scanning job");
        mZWayDeviceScanningJob = AbstractDiscoveryService.scheduler.scheduleWithFixedDelay(
                mZWayDeviceScanningRunnable, INITIAL_DELAY, SCAN_INTERVAL, TimeUnit.SECONDS);
    } else {
        logger.debug("Scanning job is allready active");
    }
}