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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.io.homekit.internal.accessories;
  14
  15 import static org.openhab.io.homekit.internal.HomekitCharacteristicType.ON_STATE;
  16
  17 import java.util.List;
  18 import java.util.concurrent.CompletableFuture;
  19
  20 import org.openhab.core.library.types.OnOffType;
  21 import org.openhab.core.library.types.OpenClosedType;
  22 import org.openhab.io.homekit.internal.HomekitAccessoryUpdater;
  23 import org.openhab.io.homekit.internal.HomekitSettings;
  24 import org.openhab.io.homekit.internal.HomekitTaggedItem;
  25
  26 import io.github.hapjava.accessories.SwitchAccessory;
  27 import io.github.hapjava.characteristics.HomekitCharacteristicChangeCallback;
  28 import io.github.hapjava.services.impl.SwitchService;
  29
  30 /**
  31  * Implements Switch using an Item that provides an On/Off state.
  32  *
  33  * @author Andy Lintner - Initial contribution
  34  */
  35 public class HomekitSwitchImpl extends AbstractHomekitAccessoryImpl implements SwitchAccessory {
  36     private final BooleanItemReader onReader;
  37
  38     public HomekitSwitchImpl(HomekitTaggedItem taggedItem, List<HomekitTaggedItem> mandatoryCharacteristics,
  39             HomekitAccessoryUpdater updater, HomekitSettings settings) throws IncompleteAccessoryException {
  40         super(taggedItem, mandatoryCharacteristics, updater, settings);
  41         onReader = createBooleanReader(ON_STATE, OnOffType.ON, OpenClosedType.OPEN);
  42         getServices().add(new SwitchService(this));
  43     }
  44
  45     @Override
  46     public CompletableFuture<Boolean> getSwitchState() {
  47         return CompletableFuture.completedFuture(onReader.getValue());
  48     }
  49
  50     @Override
  51     public CompletableFuture<Void> setSwitchState(boolean state) {
  52         onReader.setValue(state);
  53         return CompletableFuture.completedFuture(null);
  54     }
  55
  56     @Override
  57     public void subscribeSwitchState(HomekitCharacteristicChangeCallback callback) {
  58         subscribe(ON_STATE, callback);
  59     }
  60
  61     @Override
  62     public void unsubscribeSwitchState() {
  63         unsubscribe(ON_STATE);
  64     }
  65 }