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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.BatteryStatus;
  21 import org.openhab.binding.fineoffsetweatherstation.internal.domain.response.SensorDevice;
  22 import org.openhab.core.library.types.DecimalType;
  23 import org.openhab.core.library.types.OnOffType;
  24 import org.openhab.core.library.types.QuantityType;
  25 import org.openhab.core.thing.Channel;
  26 import org.openhab.core.thing.ChannelUID;
  27 import org.openhab.core.thing.Thing;
  28 import org.openhab.core.thing.ThingStatus;
  29 import org.openhab.core.thing.ThingStatusDetail;
  30 import org.openhab.core.thing.binding.BaseThingHandler;
  31 import org.openhab.core.types.Command;
  32 import org.openhab.core.types.UnDefType;
  33
  34 import tech.units.indriya.unit.Units;
  35
  36 /**
  37  * The {@link FineOffsetSensorHandler} keeps track of the signal and battery of the sensor attached to the gateway.
  38  *
  39  * @author Andreas Berger - Initial contribution
  40  */
  41 @NonNullByDefault
  42 public class FineOffsetSensorHandler extends BaseThingHandler {
  43     private boolean disposed;
  44
  45     public FineOffsetSensorHandler(Thing thing) {
  46         super(thing);
  47     }
  48
  49     @Override
  50     public void handleCommand(ChannelUID channelUID, Command command) {
  51     }
  52
  53     @Override
  54     public void initialize() {
  55         updateStatus(ThingStatus.ONLINE);
  56         disposed = false;
  57     }
  58
  59     @Override
  60     public void dispose() {
  61         disposed = true;
  62     }
  63
  64     public void updateSensorState(@Nullable SensorDevice sensorDevice) {
  65         if (disposed) {
  66             return;
  67         }
  68         if (sensorDevice == null) {
  69             // this only happens, if sensor data was read out correctly from the gateway, but the things' device
  70             // (sensor) is no longer part of the paired sensors
  71             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.GONE);
  72             getThing().getChannels().forEach(c -> updateState(c.getUID(), UnDefType.UNDEF));
  73             return;
  74         }
  75         if (sensorDevice.getSignal() == 0) {
  76             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR);
  77         } else {
  78             updateStatus(ThingStatus.ONLINE);
  79         }
  80         updateState(FineOffsetWeatherStationBindingConstants.SENSOR_CHANNEL_SIGNAL,
  81                 new DecimalType(sensorDevice.getSignal()));
  82         BatteryStatus batteryStatus = sensorDevice.getBatteryStatus();
  83
  84         updateState(FineOffsetWeatherStationBindingConstants.SENSOR_CHANNEL_LOW_BATTERY,
  85                 batteryStatus.isLow() ? OnOffType.ON : OnOffType.OFF);
  86         Integer percentage = batteryStatus.getPercentage();
  87         if (percentage != null) {
  88             updateState(FineOffsetWeatherStationBindingConstants.SENSOR_CHANNEL_BATTERY_LEVEL,
  89                     new DecimalType(new BigDecimal(percentage)));
  90         } else {
  91             @Nullable
  92             Channel channel = thing.getChannel(FineOffsetWeatherStationBindingConstants.SENSOR_CHANNEL_BATTERY_LEVEL);
  93             if (channel != null) {
  94                 updateThing(editThing().withoutChannels(channel).build());
  95             }
  96         }
  97         Double voltage = batteryStatus.getVoltage();
  98         if (voltage != null) {
  99             updateState(FineOffsetWeatherStationBindingConstants.SENSOR_CHANNEL_BATTERY_VOLTAGE,
 100                     new QuantityType<>(voltage, Units.VOLT));
 101         } else {
 102             @Nullable
 103             Channel channel = thing.getChannel(FineOffsetWeatherStationBindingConstants.SENSOR_CHANNEL_BATTERY_VOLTAGE);
 104             if (channel != null) {
 105                 updateThing(editThing().withoutChannels(channel).build());
 106             }
 107         }
 108     }
 109 }