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   1 /**
   2  * Copyright (c) 2010-2023 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.eclipse.jdt.annotation.NonNullByDefault;
  16 import org.eclipse.jdt.annotation.Nullable;
  17 import org.jupnp.UpnpService;
  18 import org.jupnp.model.message.header.RootDeviceHeader;
  19 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  20 import org.openhab.core.config.discovery.DiscoveryService;
  21 import org.osgi.service.component.annotations.Component;
  22 import org.osgi.service.component.annotations.Reference;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25
  26 /**
  27  * The {@link WemoDiscoveryService} is a {@link DiscoveryService} implementation, which can find WeMo UPnP devices in
  28  * the network.
  29  *
  30  * @author Hans-Jörg Merk - Initial contribution
  31  *
  32  */
  33 @NonNullByDefault
  34 @Component(service = DiscoveryService.class, configurationPid = "discovery.wemo")
  35 public class WemoDiscoveryService extends AbstractDiscoveryService {
  36
  37     private Logger logger = LoggerFactory.getLogger(WemoDiscoveryService.class);
  38
  39     public WemoDiscoveryService() {
  40         super(5);
  41     }
  42
  43     private @Nullable UpnpService upnpService;
  44
  45     @Reference
  46     protected void setUpnpService(UpnpService upnpService) {
  47         this.upnpService = upnpService;
  48     }
  49
  50     protected void unsetUpnpService(UpnpService upnpService) {
  51         this.upnpService = null;
  52     }
  53
  54     public void activate() {
  55         logger.debug("Starting WeMo UPnP discovery...");
  56         startScan();
  57     }
  58
  59     @Override
  60     public void deactivate() {
  61         logger.debug("Stopping WeMo UPnP discovery...");
  62         stopScan();
  63     }
  64
  65     @Override
  66     protected void startScan() {
  67         logger.debug("Starting UPnP RootDevice search...");
  68         UpnpService localService = upnpService;
  69         if (localService != null) {
  70             localService.getControlPoint().search(new RootDeviceHeader());
  71         } else {
  72             logger.debug("upnpService not set");
  73         }
  74     }
  75
  76     @Override
  77     protected synchronized void stopScan() {
  78         removeOlderResults(getTimestampOfLastScan());
  79         super.stopScan();
  80     }
  81 }