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   1 /**
   2  * Copyright (c) 2010-2020 Contributors to the openHAB project
   3  *
   4  * See the NOTICE file(s) distributed with this work for additional
   5  * information.
   6  *
   7  * This program and the accompanying materials are made available under the
   8  * terms of the Eclipse Public License 2.0 which is available at
   9  * http://www.eclipse.org/legal/epl-2.0
  10  *
  11  * SPDX-License-Identifier: EPL-2.0
  12  */
  13 package org.openhab.binding.wemo.internal.discovery;
  14
  15 import org.jupnp.UpnpService;
  16 import org.jupnp.model.message.header.RootDeviceHeader;
  17 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  18 import org.openhab.core.config.discovery.DiscoveryService;
  19 import org.osgi.service.component.annotations.Component;
  20 import org.osgi.service.component.annotations.Reference;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23
  24 /**
  25  * The {@link WemoDiscoveryService} is a {@link DiscoveryService} implementation, which can find WeMo UPnP devices in
  26  * the network.
  27  *
  28  * @author Hans-Jörg Merk - Initial contribution
  29  *
  30  */
  31 @Component(service = DiscoveryService.class, immediate = true, configurationPid = "discovery.wemo")
  32 public class WemoDiscoveryService extends AbstractDiscoveryService {
  33
  34     private Logger logger = LoggerFactory.getLogger(WemoDiscoveryService.class);
  35
  36     public WemoDiscoveryService() {
  37         super(5);
  38     }
  39
  40     private UpnpService upnpService;
  41
  42     @Reference
  43     protected void setUpnpService(UpnpService upnpService) {
  44         this.upnpService = upnpService;
  45     }
  46
  47     protected void unsetUpnpService(UpnpService upnpService) {
  48         this.upnpService = null;
  49     }
  50
  51     public void activate() {
  52         logger.debug("Starting WeMo UPnP discovery...");
  53         startScan();
  54     }
  55
  56     @Override
  57     public void deactivate() {
  58         logger.debug("Stopping WeMo UPnP discovery...");
  59         stopScan();
  60     }
  61
  62     @Override
  63     protected void startScan() {
  64         logger.debug("Starting UPnP RootDevice search...");
  65         if (upnpService != null) {
  66             upnpService.getControlPoint().search(new RootDeviceHeader());
  67         } else {
  68             logger.debug("upnpService not set");
  69         }
  70     }
  71
  72     @Override
  73     protected synchronized void stopScan() {
  74         removeOlderResults(getTimestampOfLastScan());
  75         super.stopScan();
  76     }
  77 }