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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.tr064.internal;
  14
  15 import static org.openhab.binding.tr064.internal.Tr064BindingConstants.THING_TYPE_SUBDEVICE;
  16 import static org.openhab.binding.tr064.internal.Tr064BindingConstants.THING_TYPE_SUBDEVICE_LAN;
  17
  18 import java.util.*;
  19
  20 import org.eclipse.jdt.annotation.NonNullByDefault;
  21 import org.eclipse.jdt.annotation.Nullable;
  22 import org.openhab.binding.tr064.internal.dto.scpd.root.SCPDDeviceType;
  23 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  24 import org.openhab.core.config.discovery.DiscoveryResult;
  25 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  26 import org.openhab.core.thing.ThingTypeUID;
  27 import org.openhab.core.thing.ThingUID;
  28 import org.openhab.core.thing.binding.BridgeHandler;
  29 import org.openhab.core.thing.binding.ThingHandler;
  30 import org.openhab.core.thing.binding.ThingHandlerService;
  31 import org.openhab.core.util.UIDUtils;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 /**
  36  * The {@link Tr064DiscoveryService} discovers sub devices of a root device.
  37  *
  38  * @author Jan N. Klug - Initial contribution
  39  */
  40 @NonNullByDefault
  41 public class Tr064DiscoveryService extends AbstractDiscoveryService implements ThingHandlerService {
  42     private static final int SEARCH_TIME = 5;
  43     public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Collections.singleton(THING_TYPE_SUBDEVICE);
  44
  45     private final Logger logger = LoggerFactory.getLogger(Tr064DiscoveryService.class);
  46     private @Nullable Tr064RootHandler bridgeHandler;
  47
  48     public Tr064DiscoveryService() {
  49         super(SEARCH_TIME);
  50     }
  51
  52     @Override
  53     public void setThingHandler(ThingHandler thingHandler) {
  54         if (thingHandler instanceof Tr064RootHandler) {
  55             this.bridgeHandler = (Tr064RootHandler) thingHandler;
  56         }
  57     }
  58
  59     @Override
  60     public @Nullable ThingHandler getThingHandler() {
  61         return bridgeHandler;
  62     }
  63
  64     @Override
  65     public void deactivate() {
  66         BridgeHandler bridgeHandler = this.bridgeHandler;
  67         if (bridgeHandler == null) {
  68             logger.warn("Bridgehandler not found, could not cleanup discovery results.");
  69             return;
  70         }
  71         removeOlderResults(new Date().getTime(), bridgeHandler.getThing().getUID());
  72     }
  73
  74     @Override
  75     public Set<ThingTypeUID> getSupportedThingTypes() {
  76         return SUPPORTED_THING_TYPES;
  77     }
  78
  79     @Override
  80     public void startScan() {
  81         Tr064RootHandler bridgeHandler = this.bridgeHandler;
  82         if (bridgeHandler == null) {
  83             logger.warn("Could not start discovery, bridge handler not set");
  84             return;
  85         }
  86         List<SCPDDeviceType> devices = bridgeHandler.getAllSubDevices();
  87         ThingUID bridgeUID = bridgeHandler.getThing().getUID();
  88         devices.forEach(device -> {
  89             logger.trace("Trying to add {} to discovery results on {}", device, bridgeUID);
  90             String udn = device.getUDN();
  91             if (udn != null) {
  92                 ThingTypeUID thingTypeUID;
  93                 if ("urn:dslforum-org:device:LANDevice:1".equals(device.getDeviceType())) {
  94                     thingTypeUID = THING_TYPE_SUBDEVICE_LAN;
  95                 } else {
  96                     thingTypeUID = THING_TYPE_SUBDEVICE;
  97                 }
  98                 ThingUID thingUID = new ThingUID(thingTypeUID, bridgeUID, UIDUtils.encode(udn));
  99
 100                 Map<String, Object> properties = new HashMap<>(2);
 101                 properties.put("uuid", udn);
 102                 properties.put("deviceType", device.getDeviceType());
 103
 104                 DiscoveryResult result = DiscoveryResultBuilder.create(thingUID).withLabel(device.getFriendlyName())
 105                         .withBridge(bridgeHandler.getThing().getUID()).withProperties(properties)
 106                         .withRepresentationProperty("uuid").build();
 107                 thingDiscovered(result);
 108             }
 109         });
 110     }
 111
 112     @Override
 113     protected synchronized void stopScan() {
 114         super.stopScan();
 115         removeOlderResults(getTimestampOfLastScan());
 116     }
 117 }