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   1 /**
   2  * Copyright (c) 2010-2024 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.hue.internal.discovery;
  14
  15 import static org.openhab.binding.hue.internal.HueBindingConstants.*;
  16
  17 import java.time.Instant;
  18 import java.util.Map;
  19 import java.util.Map.Entry;
  20 import java.util.Objects;
  21 import java.util.Optional;
  22 import java.util.Set;
  23 import java.util.concurrent.ScheduledFuture;
  24 import java.util.concurrent.TimeUnit;
  25
  26 import org.eclipse.jdt.annotation.NonNullByDefault;
  27 import org.eclipse.jdt.annotation.Nullable;
  28 import org.openhab.binding.hue.internal.api.dto.clip2.MetaData;
  29 import org.openhab.binding.hue.internal.api.dto.clip2.Resource;
  30 import org.openhab.binding.hue.internal.api.dto.clip2.ResourceReference;
  31 import org.openhab.binding.hue.internal.api.dto.clip2.enums.Archetype;
  32 import org.openhab.binding.hue.internal.api.dto.clip2.enums.ResourceType;
  33 import org.openhab.binding.hue.internal.exceptions.ApiException;
  34 import org.openhab.binding.hue.internal.exceptions.AssetNotLoadedException;
  35 import org.openhab.binding.hue.internal.handler.Clip2BridgeHandler;
  36 import org.openhab.core.config.discovery.AbstractThingHandlerDiscoveryService;
  37 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  38 import org.openhab.core.thing.Thing;
  39 import org.openhab.core.thing.ThingStatus;
  40 import org.openhab.core.thing.ThingTypeUID;
  41 import org.openhab.core.thing.ThingUID;
  42 import org.osgi.service.component.annotations.Component;
  43 import org.osgi.service.component.annotations.ServiceScope;
  44 import org.slf4j.Logger;
  45 import org.slf4j.LoggerFactory;
  46
  47 /**
  48  * Discovery service to find resource things on a Hue Bridge that is running CLIP 2.
  49  *
  50  * @author Andrew Fiddian-Green - Initial Contribution
  51  */
  52 @Component(scope = ServiceScope.PROTOTYPE, service = Clip2ThingDiscoveryService.class)
  53 @NonNullByDefault
  54 public class Clip2ThingDiscoveryService extends AbstractThingHandlerDiscoveryService<Clip2BridgeHandler> {
  55     private final Logger logger = LoggerFactory.getLogger(Clip2ThingDiscoveryService.class);
  56
  57     private static final int DISCOVERY_TIMEOUT_SECONDS = 20;
  58     private static final int DISCOVERY_INTERVAL_SECONDS = 600;
  59
  60     /**
  61      * Map of resource types and respective thing types that shall be discovered.
  62      */
  63     private static final Map<ResourceType, ThingTypeUID> DISCOVERY_TYPES = Map.of( //
  64             ResourceType.DEVICE, THING_TYPE_DEVICE, //
  65             ResourceType.ROOM, THING_TYPE_ROOM, //
  66             ResourceType.ZONE, THING_TYPE_ZONE, //
  67             ResourceType.BRIDGE_HOME, THING_TYPE_ZONE);
  68
  69     private @Nullable ScheduledFuture<?> discoveryTask;
  70
  71     public Clip2ThingDiscoveryService() {
  72         super(Clip2BridgeHandler.class, Set.of(THING_TYPE_DEVICE, THING_TYPE_ROOM, THING_TYPE_ZONE),
  73                 DISCOVERY_TIMEOUT_SECONDS, true);
  74     }
  75
  76     @Override
  77     public void initialize() {
  78         thingHandler.registerDiscoveryService(this);
  79         super.initialize();
  80     }
  81
  82     @Override
  83     public void dispose() {
  84         super.dispose();
  85         thingHandler.unregisterDiscoveryService();
  86         removeOlderResults(Instant.now().toEpochMilli(), thingHandler.getThing().getBridgeUID());
  87     }
  88
  89     /**
  90      * If the bridge is online, then query it to get all resource types within it, which are allowed to be instantiated
  91      * as OH things, and announce those respective things by calling the core 'thingDiscovered()' method.
  92      */
  93     private synchronized void discoverThings() {
  94         if (thingHandler.getThing().getStatus() == ThingStatus.ONLINE) {
  95             try {
  96                 ThingUID bridgeUID = thingHandler.getThing().getUID();
  97                 for (Entry<ResourceType, ThingTypeUID> entry : DISCOVERY_TYPES.entrySet()) {
  98                     for (Resource resource : thingHandler.getResources(new ResourceReference().setType(entry.getKey()))
  99                             .getResources()) {
 100
 101                         MetaData metaData = resource.getMetaData();
 102                         if (Objects.nonNull(metaData) && (metaData.getArchetype() == Archetype.BRIDGE_V2)) {
 103                             // the bridge device is handled by a bridge thing handler
 104                             continue;
 105                         }
 106
 107                         String resourceId = resource.getId();
 108                         String idv1 = resource.getIdV1();
 109                         String resourceType = resource.getType().toString();
 110                         String resourceName = resource.getName();
 111                         String thingId = resourceId;
 112                         String thingLabel = resourceName;
 113                         String legacyThingUID = null;
 114
 115                         // special zone 'all lights'
 116                         if (resource.getType() == ResourceType.BRIDGE_HOME) {
 117                             thingLabel = thingHandler.getLocalizedText(ALL_LIGHTS_KEY);
 118                         }
 119
 120                         Optional<Thing> legacyThingOptional = thingHandler.getLegacyThing(idv1);
 121                         if (legacyThingOptional.isPresent()) {
 122                             Thing legacyThing = legacyThingOptional.get();
 123                             legacyThingUID = legacyThing.getUID().getAsString();
 124                             thingId = legacyThing.getUID().getId();
 125                             String legacyLabel = legacyThing.getLabel();
 126                             thingLabel = Objects.nonNull(legacyLabel) ? legacyLabel : thingLabel;
 127                         }
 128
 129                         DiscoveryResultBuilder builder = DiscoveryResultBuilder
 130                                 .create(new ThingUID(entry.getValue(), bridgeUID, thingId)) //
 131                                 .withBridge(bridgeUID) //
 132                                 .withLabel(thingLabel) //
 133                                 .withProperty(PROPERTY_RESOURCE_ID, resourceId)
 134                                 .withProperty(PROPERTY_RESOURCE_TYPE, resourceType)
 135                                 .withProperty(PROPERTY_RESOURCE_NAME, resourceName)
 136                                 .withRepresentationProperty(PROPERTY_RESOURCE_ID);
 137
 138                         if (Objects.nonNull(legacyThingUID)) {
 139                             builder = builder.withProperty(PROPERTY_LEGACY_THING_UID, legacyThingUID);
 140                         }
 141                         thingDiscovered(builder.build());
 142                     }
 143                 }
 144             } catch (ApiException | AssetNotLoadedException e) {
 145                 logger.debug("discoverThings() bridge is offline or in a bad state");
 146             } catch (InterruptedException e) {
 147             }
 148         }
 149         stopScan();
 150     }
 151
 152     @Override
 153     protected void startBackgroundDiscovery() {
 154         ScheduledFuture<?> discoveryTask = this.discoveryTask;
 155         if (Objects.isNull(discoveryTask) || discoveryTask.isCancelled()) {
 156             this.discoveryTask = scheduler.scheduleWithFixedDelay(this::discoverThings, 0, DISCOVERY_INTERVAL_SECONDS,
 157                     TimeUnit.SECONDS);
 158         }
 159     }
 160
 161     @Override
 162     protected void startScan() {
 163         scheduler.execute(this::discoverThings);
 164     }
 165
 166     @Override
 167     protected void stopBackgroundDiscovery() {
 168         ScheduledFuture<?> discoveryTask = this.discoveryTask;
 169         if (Objects.nonNull(discoveryTask)) {
 170             discoveryTask.cancel(true);
 171             this.discoveryTask = null;
 172         }
 173     }
 174 }