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   1 /**
   2  * Copyright (c) 2010-2021 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.io.homekit.internal.accessories;
  14
  15 import static org.openhab.io.homekit.internal.HomekitCharacteristicType.LIGHT_LEVEL;
  16
  17 import java.math.BigDecimal;
  18 import java.util.List;
  19 import java.util.concurrent.CompletableFuture;
  20
  21 import org.eclipse.jdt.annotation.Nullable;
  22 import org.openhab.core.library.types.DecimalType;
  23 import org.openhab.io.homekit.internal.HomekitAccessoryUpdater;
  24 import org.openhab.io.homekit.internal.HomekitCharacteristicType;
  25 import org.openhab.io.homekit.internal.HomekitSettings;
  26 import org.openhab.io.homekit.internal.HomekitTaggedItem;
  27
  28 import io.github.hapjava.accessories.LightSensorAccessory;
  29 import io.github.hapjava.characteristics.HomekitCharacteristicChangeCallback;
  30 import io.github.hapjava.characteristics.impl.lightsensor.CurrentAmbientLightLevelCharacteristic;
  31 import io.github.hapjava.services.impl.LightSensorService;
  32
  33 /**
  34  * HomeKit light sensor implementation.
  35  *
  36  * @author Eugen Freiter - Initial contribution
  37  */
  38 public class HomekitLightSensorImpl extends AbstractHomekitAccessoryImpl implements LightSensorAccessory {
  39
  40     public HomekitLightSensorImpl(HomekitTaggedItem taggedItem, List<HomekitTaggedItem> mandatoryCharacteristics,
  41             HomekitAccessoryUpdater updater, HomekitSettings settings) {
  42         super(taggedItem, mandatoryCharacteristics, updater, settings);
  43         getServices().add(new LightSensorService(this));
  44     }
  45
  46     @Override
  47     public CompletableFuture<Double> getCurrentAmbientLightLevel() {
  48         final @Nullable DecimalType state = getStateAs(LIGHT_LEVEL, DecimalType.class);
  49         return CompletableFuture
  50                 .completedFuture(state != null ? state.doubleValue()
  51                         : getAccessoryConfiguration(HomekitCharacteristicType.LIGHT_LEVEL, HomekitTaggedItem.MIN_VALUE,
  52                                 BigDecimal.valueOf(CurrentAmbientLightLevelCharacteristic.DEFAULT_MIN_VALUE))
  53                                         .doubleValue());
  54     }
  55
  56     @Override
  57     public void subscribeCurrentAmbientLightLevel(HomekitCharacteristicChangeCallback callback) {
  58         subscribe(LIGHT_LEVEL, callback);
  59     }
  60
  61     @Override
  62     public void unsubscribeCurrentAmbientLightLevel() {
  63         unsubscribe(LIGHT_LEVEL);
  64     }
  65 }