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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.livisismarthome.internal.discovery;
  14
  15 import static org.openhab.binding.livisismarthome.internal.LivisiBindingConstants.PROPERTY_ID;
  16
  17 import java.util.Date;
  18 import java.util.HashMap;
  19 import java.util.Map;
  20 import java.util.Optional;
  21 import java.util.Set;
  22
  23 import org.eclipse.jdt.annotation.NonNullByDefault;
  24 import org.eclipse.jdt.annotation.Nullable;
  25 import org.openhab.binding.livisismarthome.internal.LivisiBindingConstants;
  26 import org.openhab.binding.livisismarthome.internal.client.api.entity.device.DeviceDTO;
  27 import org.openhab.binding.livisismarthome.internal.handler.LivisiBridgeHandler;
  28 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  29 import org.openhab.core.config.discovery.DiscoveryResult;
  30 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  31 import org.openhab.core.config.discovery.DiscoveryService;
  32 import org.openhab.core.thing.ThingTypeUID;
  33 import org.openhab.core.thing.ThingUID;
  34 import org.openhab.core.thing.binding.ThingHandler;
  35 import org.openhab.core.thing.binding.ThingHandlerService;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 /**
  40  * The {@link LivisiDeviceDiscoveryService} is responsible for discovering new devices.
  41  *
  42  * @author Oliver Kuhl - Initial contribution
  43  * @author Sven Strohschein - Renamed from Innogy to Livisi
  44  */
  45 @NonNullByDefault
  46 public class LivisiDeviceDiscoveryService extends AbstractDiscoveryService
  47         implements DiscoveryService, ThingHandlerService {
  48
  49     private static final int SEARCH_TIME_SECONDS = 60;
  50
  51     private final Logger logger = LoggerFactory.getLogger(LivisiDeviceDiscoveryService.class);
  52
  53     private @Nullable LivisiBridgeHandler bridgeHandler;
  54
  55     /**
  56      * Construct a {@link LivisiDeviceDiscoveryService}.
  57      */
  58     public LivisiDeviceDiscoveryService() {
  59         super(SEARCH_TIME_SECONDS);
  60     }
  61
  62     /**
  63      * Deactivates the {@link LivisiDeviceDiscoveryService} by unregistering it as
  64      * {@link org.openhab.binding.livisismarthome.internal.listener.DeviceStatusListener} on the
  65      * {@link LivisiBridgeHandler}. Older discovery results will be removed.
  66      *
  67      * @see org.openhab.core.config.discovery.AbstractDiscoveryService#deactivate()
  68      */
  69     @Override
  70     public void deactivate() {
  71         removeOlderResults(new Date().getTime());
  72     }
  73
  74     @Override
  75     public Set<ThingTypeUID> getSupportedThingTypes() {
  76         return LivisiBindingConstants.SUPPORTED_DEVICE_THING_TYPES;
  77     }
  78
  79     @Override
  80     protected void startScan() {
  81         logger.debug("SCAN for new LIVISI SmartHome devices started...");
  82         final LivisiBridgeHandler bridgeHandlerNonNullable = bridgeHandler;
  83         if (bridgeHandlerNonNullable != null) {
  84             for (final DeviceDTO d : bridgeHandlerNonNullable.loadDevices()) {
  85                 onDeviceAdded(d);
  86             }
  87         }
  88     }
  89
  90     @Override
  91     protected synchronized void stopScan() {
  92         super.stopScan();
  93         removeOlderResults(getTimestampOfLastScan());
  94     }
  95
  96     public void onDeviceAdded(DeviceDTO device) {
  97         final LivisiBridgeHandler bridgeHandlerNonNullable = bridgeHandler;
  98         if (bridgeHandlerNonNullable != null) {
  99             final ThingUID bridgeUID = bridgeHandlerNonNullable.getThing().getUID();
 100             final Optional<ThingUID> thingUID = getThingUID(bridgeUID, device);
 101             final Optional<ThingTypeUID> thingTypeUID = getThingTypeUID(device);
 102
 103             if (thingUID.isPresent() && thingTypeUID.isPresent()) {
 104                 String name = device.getConfig().getName();
 105                 if (name.isEmpty()) {
 106                     name = device.getSerialNumber();
 107                 }
 108
 109                 final Map<String, Object> properties = new HashMap<>();
 110                 properties.put(PROPERTY_ID, device.getId());
 111
 112                 final String label;
 113                 if (device.hasLocation()) {
 114                     label = device.getType() + ": " + name + " (" + device.getLocation().getName() + ")";
 115                 } else {
 116                     label = device.getType() + ": " + name;
 117                 }
 118
 119                 final DiscoveryResult discoveryResult = DiscoveryResultBuilder.create(thingUID.get())
 120                         .withThingType(thingTypeUID.get()).withProperties(properties).withBridge(bridgeUID)
 121                         .withRepresentationProperty(PROPERTY_ID).withLabel(label).build();
 122
 123                 thingDiscovered(discoveryResult);
 124             } else {
 125                 logger.debug("Discovered unsupported device of type '{}' and name '{}' with id {}", device.getType(),
 126                         device.getConfig().getName(), device.getId());
 127             }
 128         }
 129     }
 130
 131     /**
 132      * Returns the {@link ThingUID} for the given {@link DeviceDTO} or empty, if the device type is not available.
 133      *
 134      * @param bridgeUID bridge
 135      * @param device device
 136      * @return {@link ThingUID} for the given {@link DeviceDTO} or empty
 137      */
 138     private Optional<ThingUID> getThingUID(ThingUID bridgeUID, DeviceDTO device) {
 139         final Optional<ThingTypeUID> thingTypeUID = getThingTypeUID(device);
 140
 141         if (thingTypeUID.isPresent() && getSupportedThingTypes().contains(thingTypeUID.get())) {
 142             return Optional.of(new ThingUID(thingTypeUID.get(), bridgeUID, device.getId()));
 143         }
 144         return Optional.empty();
 145     }
 146
 147     /**
 148      * Returns a {@link ThingTypeUID} for the given {@link DeviceDTO} or empty, if the device type is not available.
 149      *
 150      * @param device device
 151      * @return {@link ThingTypeUID} for the given {@link DeviceDTO} or empty
 152      */
 153     private Optional<ThingTypeUID> getThingTypeUID(DeviceDTO device) {
 154         final String thingTypeId = device.getType();
 155         if (thingTypeId != null) {
 156             return Optional.of(new ThingTypeUID(LivisiBindingConstants.BINDING_ID, thingTypeId));
 157         }
 158         return Optional.empty();
 159     }
 160
 161     @Override
 162     public void setThingHandler(@Nullable ThingHandler handler) {
 163         if (handler instanceof LivisiBridgeHandler) {
 164             bridgeHandler = (LivisiBridgeHandler) handler;
 165         }
 166     }
 167
 168     @Override
 169     public @Nullable ThingHandler getThingHandler() {
 170         return bridgeHandler;
 171     }
 172 }