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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.binding.hue.internal.handler.sensors;
  14
  15 import static org.openhab.binding.hue.internal.HueBindingConstants.*;
  16
  17 import java.time.Instant;
  18 import java.time.LocalDateTime;
  19 import java.time.ZoneId;
  20 import java.time.ZoneOffset;
  21 import java.time.ZonedDateTime;
  22 import java.time.format.DateTimeFormatter;
  23 import java.time.format.DateTimeParseException;
  24 import java.util.Collections;
  25 import java.util.Map;
  26 import java.util.Set;
  27
  28 import org.eclipse.jdt.annotation.NonNullByDefault;
  29 import org.openhab.binding.hue.internal.FullSensor;
  30 import org.openhab.binding.hue.internal.SensorConfigUpdate;
  31 import org.openhab.binding.hue.internal.handler.HueSensorHandler;
  32 import org.openhab.core.config.core.Configuration;
  33 import org.openhab.core.library.types.DecimalType;
  34 import org.openhab.core.thing.Thing;
  35 import org.openhab.core.thing.ThingTypeUID;
  36
  37 /**
  38  * Hue Dimmer Switch
  39  *
  40  * @author Samuel Leisering - Initial contribution
  41  * @author Christoph Weitkamp - Initial contribution
  42  */
  43 @NonNullByDefault
  44 public class DimmerSwitchHandler extends HueSensorHandler {
  45
  46     public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Collections.singleton(THING_TYPE_DIMMER_SWITCH);
  47
  48     public DimmerSwitchHandler(Thing thing) {
  49         super(thing);
  50     }
  51
  52     @Override
  53     protected SensorConfigUpdate doConfigurationUpdate(Map<String, Object> configurationParameters) {
  54         return new SensorConfigUpdate();
  55     }
  56
  57     @Override
  58     protected void doSensorStateChanged(FullSensor sensor, Configuration config) {
  59         ZoneId zoneId = ZoneId.systemDefault();
  60         ZonedDateTime now = ZonedDateTime.now(zoneId), timestamp = now;
  61
  62         Object lastUpdated = sensor.getState().get(FullSensor.STATE_LAST_UPDATED);
  63         if (lastUpdated != null) {
  64             try {
  65                 timestamp = ZonedDateTime.ofInstant(
  66                         LocalDateTime.parse(String.valueOf(lastUpdated), DateTimeFormatter.ISO_LOCAL_DATE_TIME),
  67                         ZoneOffset.UTC, zoneId);
  68             } catch (DateTimeParseException e) {
  69                 // do nothing
  70             }
  71         }
  72
  73         Object buttonState = sensor.getState().get(FullSensor.STATE_BUTTON_EVENT);
  74         if (buttonState != null) {
  75             String value = String.valueOf(buttonState);
  76             updateState(CHANNEL_DIMMER_SWITCH, new DecimalType(value));
  77             // Avoid dispatching events if "lastupdated" is older than now minus 3 seconds (e.g. during restart)
  78             Instant then = timestamp.toInstant();
  79             Instant someSecondsEarlier = now.minusSeconds(3).toInstant();
  80             if (then.isAfter(someSecondsEarlier) && then.isBefore(now.toInstant())) {
  81                 triggerChannel(EVENT_DIMMER_SWITCH, value);
  82             }
  83         }
  84     }
  85 }