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   1 /**
   2  * Copyright (c) 2010-2022 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.fineoffsetweatherstation.internal.handler;
  14
  15 import java.math.BigDecimal;
  16
  17 import org.eclipse.jdt.annotation.NonNullByDefault;
  18 import org.eclipse.jdt.annotation.Nullable;
  19 import org.openhab.binding.fineoffsetweatherstation.internal.FineOffsetWeatherStationBindingConstants;
  20 import org.openhab.binding.fineoffsetweatherstation.internal.domain.response.SensorDevice;
  21 import org.openhab.core.library.types.DecimalType;
  22 import org.openhab.core.library.types.OnOffType;
  23 import org.openhab.core.thing.Channel;
  24 import org.openhab.core.thing.ChannelUID;
  25 import org.openhab.core.thing.Thing;
  26 import org.openhab.core.thing.ThingStatus;
  27 import org.openhab.core.thing.ThingStatusDetail;
  28 import org.openhab.core.thing.binding.BaseThingHandler;
  29 import org.openhab.core.types.Command;
  30 import org.openhab.core.types.UnDefType;
  31
  32 /**
  33  * The {@link FineOffsetSensorHandler} keeps track of the signal and battery of the sensor attached to the gateway.
  34  *
  35  * @author Andreas Berger - Initial contribution
  36  */
  37 @NonNullByDefault
  38 public class FineOffsetSensorHandler extends BaseThingHandler {
  39     private boolean disposed;
  40
  41     public FineOffsetSensorHandler(Thing thing) {
  42         super(thing);
  43     }
  44
  45     @Override
  46     public void handleCommand(ChannelUID channelUID, Command command) {
  47     }
  48
  49     @Override
  50     public void initialize() {
  51         updateStatus(ThingStatus.ONLINE);
  52         disposed = false;
  53     }
  54
  55     @Override
  56     public void dispose() {
  57         disposed = true;
  58     }
  59
  60     public void updateSensorState(@Nullable SensorDevice sensorDevice) {
  61         if (disposed) {
  62             return;
  63         }
  64         if (sensorDevice == null) {
  65             // this only happens, if sensor data was read out correctly from the gateway, but the things' device
  66             // (sensor) is no longer part of the paired sensors
  67             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.GONE);
  68             getThing().getChannels().forEach(c -> updateState(c.getUID(), UnDefType.UNDEF));
  69             return;
  70         }
  71         if (sensorDevice.getSignal() == 0) {
  72             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR);
  73         } else {
  74             updateStatus(ThingStatus.ONLINE);
  75         }
  76         updateState(FineOffsetWeatherStationBindingConstants.SENSOR_CHANNEL_SIGNAL,
  77                 new DecimalType(sensorDevice.getSignal()));
  78         updateState(FineOffsetWeatherStationBindingConstants.SENSOR_CHANNEL_LOW_BATTERY,
  79                 sensorDevice.getBatteryStatus().isLow() ? OnOffType.ON : OnOffType.OFF);
  80         Integer percentage = sensorDevice.getBatteryStatus().getPercentage();
  81         if (percentage != null) {
  82             updateState(FineOffsetWeatherStationBindingConstants.SENSOR_CHANNEL_BATTERY_LEVEL,
  83                     new DecimalType(new BigDecimal(percentage)));
  84         } else {
  85             @Nullable
  86             Channel channel = thing.getChannel(FineOffsetWeatherStationBindingConstants.SENSOR_CHANNEL_BATTERY_LEVEL);
  87             if (channel != null) {
  88                 updateThing(editThing().withoutChannels(channel).build());
  89             }
  90         }
  91     }
  92 }