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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.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.io.homekit.internal.HomekitAccessoryUpdater;
  21 import org.openhab.io.homekit.internal.HomekitException;
  22 import org.openhab.io.homekit.internal.HomekitSettings;
  23 import org.openhab.io.homekit.internal.HomekitTaggedItem;
  24
  25 import io.github.hapjava.accessories.SwitchAccessory;
  26 import io.github.hapjava.characteristics.HomekitCharacteristicChangeCallback;
  27 import io.github.hapjava.services.impl.SwitchService;
  28
  29 /**
  30  * Implements Switch using an Item that provides an On/Off state.
  31  *
  32  * @author Andy Lintner - Initial contribution
  33  */
  34 public class HomekitSwitchImpl extends AbstractHomekitAccessoryImpl implements SwitchAccessory {
  35     private final BooleanItemReader onReader;
  36
  37     public HomekitSwitchImpl(HomekitTaggedItem taggedItem, List<HomekitTaggedItem> mandatoryCharacteristics,
  38             HomekitAccessoryUpdater updater, HomekitSettings settings) throws IncompleteAccessoryException {
  39         super(taggedItem, mandatoryCharacteristics, updater, settings);
  40         onReader = createBooleanReader(ON_STATE);
  41     }
  42
  43     @Override
  44     public void init() throws HomekitException {
  45         super.init();
  46         addService(new SwitchService(this));
  47     }
  48
  49     @Override
  50     public CompletableFuture<Boolean> getSwitchState() {
  51         return CompletableFuture.completedFuture(onReader.getValue());
  52     }
  53
  54     @Override
  55     public CompletableFuture<Void> setSwitchState(boolean state) {
  56         onReader.setValue(state);
  57         return CompletableFuture.completedFuture(null);
  58     }
  59
  60     @Override
  61     public void subscribeSwitchState(HomekitCharacteristicChangeCallback callback) {
  62         subscribe(ON_STATE, callback);
  63     }
  64
  65     @Override
  66     public void unsubscribeSwitchState() {
  67         unsubscribe(ON_STATE);
  68     }
  69 }