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   1 /**
   2  * Copyright (c) 2010-2022 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.surepetcare.internal.discovery;
  14
  15 import static org.openhab.binding.surepetcare.internal.SurePetcareConstants.*;
  16
  17 import java.util.Collections;
  18 import java.util.HashMap;
  19 import java.util.Map;
  20 import java.util.Set;
  21 import java.util.concurrent.ScheduledFuture;
  22 import java.util.concurrent.TimeUnit;
  23
  24 import org.eclipse.jdt.annotation.NonNullByDefault;
  25 import org.eclipse.jdt.annotation.Nullable;
  26 import org.openhab.binding.surepetcare.internal.dto.SurePetcareDevice;
  27 import org.openhab.binding.surepetcare.internal.dto.SurePetcareDevice.ProductType;
  28 import org.openhab.binding.surepetcare.internal.dto.SurePetcareHousehold;
  29 import org.openhab.binding.surepetcare.internal.dto.SurePetcarePet;
  30 import org.openhab.binding.surepetcare.internal.handler.SurePetcareBridgeHandler;
  31 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  32 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  33 import org.openhab.core.config.discovery.DiscoveryService;
  34 import org.openhab.core.thing.ThingStatus;
  35 import org.openhab.core.thing.ThingTypeUID;
  36 import org.openhab.core.thing.ThingUID;
  37 import org.openhab.core.thing.binding.ThingHandler;
  38 import org.openhab.core.thing.binding.ThingHandlerService;
  39 import org.slf4j.Logger;
  40 import org.slf4j.LoggerFactory;
  41
  42 /**
  43  * The {@link SurePetcareDiscoveryService} is an implementation of a discovery service for Sure Petcare pets and
  44  * devices.
  45  *
  46  * @author Rene Scherer - Initial contribution
  47  */
  48 @NonNullByDefault
  49 public class SurePetcareDiscoveryService extends AbstractDiscoveryService
  50         implements DiscoveryService, ThingHandlerService {
  51
  52     private final Logger logger = LoggerFactory.getLogger(SurePetcareDiscoveryService.class);
  53
  54     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Collections.singleton(THING_TYPE_BRIDGE);
  55
  56     private static final int DISCOVER_TIMEOUT_SECONDS = 5;
  57     private static final int DISCOVERY_SCAN_DELAY_MINUTES = 1;
  58     private static final int DISCOVERY_REFRESH_INTERVAL_HOURS = 12;
  59
  60     private @Nullable ScheduledFuture<?> discoveryJob;
  61
  62     private @NonNullByDefault({}) SurePetcareBridgeHandler bridgeHandler;
  63     private @NonNullByDefault({}) ThingUID bridgeUID;
  64
  65     /**
  66      * Creates a SurePetcareDiscoveryService with enabled autostart.
  67      */
  68     public SurePetcareDiscoveryService() {
  69         super(SUPPORTED_THING_TYPES, DISCOVER_TIMEOUT_SECONDS);
  70     }
  71
  72     @Override
  73     public Set<ThingTypeUID> getSupportedThingTypes() {
  74         return SUPPORTED_THING_TYPES;
  75     }
  76
  77     @Override
  78     public void activate() {
  79         Map<String, Object> properties = new HashMap<>();
  80         properties.put(DiscoveryService.CONFIG_PROPERTY_BACKGROUND_DISCOVERY, Boolean.TRUE);
  81         super.activate(properties);
  82     }
  83
  84     /* We override this method to allow a call from the thing handler factory */
  85     @Override
  86     public void deactivate() {
  87         super.deactivate();
  88     }
  89
  90     @Override
  91     public void setThingHandler(@Nullable ThingHandler handler) {
  92         if (handler instanceof SurePetcareBridgeHandler) {
  93             bridgeHandler = (SurePetcareBridgeHandler) handler;
  94             bridgeUID = bridgeHandler.getUID();
  95         }
  96     }
  97
  98     @Override
  99     public @Nullable ThingHandler getThingHandler() {
 100         return bridgeHandler;
 101     }
 102
 103     @Override
 104     protected void startBackgroundDiscovery() {
 105         logger.debug("Starting Sure Petcare household discovery");
 106         stopBackgroundDiscovery();
 107         discoveryJob = scheduler.scheduleWithFixedDelay(this::startScan, DISCOVERY_SCAN_DELAY_MINUTES,
 108                 DISCOVERY_REFRESH_INTERVAL_HOURS * 60, TimeUnit.MINUTES);
 109         logger.debug("Scheduled topology-changed job every {} hours", DISCOVERY_REFRESH_INTERVAL_HOURS);
 110     }
 111
 112     @Override
 113     protected void stopBackgroundDiscovery() {
 114         ScheduledFuture<?> job = discoveryJob;
 115         if (job != null) {
 116             job.cancel(true);
 117             discoveryJob = null;
 118             logger.debug("Stopped Sure Petcare device background discovery");
 119         }
 120     }
 121
 122     @Override
 123     protected void startScan() {
 124         logger.debug("Starting Sure Petcare discovery scan");
 125         // If the bridge is not online no other thing devices can be found, so no reason to scan at this moment.
 126         removeOlderResults(getTimestampOfLastScan());
 127         if (bridgeHandler.getThing().getStatus() == ThingStatus.ONLINE) {
 128             logger.debug("Starting device discovery for bridge {}", bridgeUID);
 129             bridgeHandler.listHouseholds().forEach(this::householdDiscovered);
 130             bridgeHandler.listPets().forEach(this::petDiscovered);
 131             bridgeHandler.listDevices().forEach(this::deviceDiscovered);
 132         }
 133     }
 134
 135     private void householdDiscovered(SurePetcareHousehold household) {
 136         logger.debug("Discovered household: {}", household.name);
 137         ThingUID thingsUID = new ThingUID(THING_TYPE_HOUSEHOLD, bridgeUID, household.id.toString());
 138         Map<String, Object> properties = new HashMap<>(household.getThingProperties());
 139         thingDiscovered(DiscoveryResultBuilder.create(thingsUID).withLabel(household.name).withProperties(properties)
 140                 .withRepresentationProperty(PROPERTY_NAME_ID).withBridge(bridgeUID).build());
 141     }
 142
 143     private void petDiscovered(SurePetcarePet pet) {
 144         logger.debug("Discovered pet: {}", pet.name);
 145         ThingUID thingsUID = new ThingUID(THING_TYPE_PET, bridgeUID, pet.id.toString());
 146         Map<String, Object> properties = new HashMap<>(pet.getThingProperties());
 147         thingDiscovered(DiscoveryResultBuilder.create(thingsUID).withLabel(pet.name).withProperties(properties)
 148                 .withRepresentationProperty(PROPERTY_NAME_ID).withBridge(bridgeUID).build());
 149     }
 150
 151     private void deviceDiscovered(SurePetcareDevice device) {
 152         logger.debug("Discovered device: {}", device.name);
 153         ThingTypeUID typeUID = null;
 154         switch (ProductType.findByTypeId(device.productId)) {
 155             case HUB:
 156                 typeUID = THING_TYPE_HUB_DEVICE;
 157                 break;
 158             case CAT_FLAP:
 159                 typeUID = THING_TYPE_FLAP_DEVICE;
 160                 break;
 161             case PET_FLAP:
 162                 typeUID = THING_TYPE_FLAP_DEVICE;
 163                 break;
 164             case PET_FEEDER:
 165                 typeUID = THING_TYPE_FEEDER_DEVICE;
 166                 break;
 167             case UNKNOWN:
 168             default:
 169                 return;
 170         }
 171         ThingUID thingsUID = new ThingUID(typeUID, bridgeUID, device.id.toString());
 172         Map<String, Object> properties = new HashMap<>(device.getThingProperties());
 173         thingDiscovered(DiscoveryResultBuilder.create(thingsUID).withLabel(device.name).withProperties(properties)
 174                 .withRepresentationProperty(PROPERTY_NAME_ID).withBridge(bridgeUID).build());
 175     }
 176 }