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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.binding.deconz.internal.handler;
  14
  15 import static org.openhab.binding.deconz.internal.BindingConstants.*;
  16 import static org.openhab.core.library.unit.SIUnits.CELSIUS;
  17 import static org.openhab.core.library.unit.Units.PERCENT;
  18
  19 import java.math.BigDecimal;
  20 import java.util.Arrays;
  21 import java.util.Collections;
  22 import java.util.List;
  23 import java.util.Set;
  24
  25 import javax.measure.quantity.Temperature;
  26
  27 import org.eclipse.jdt.annotation.NonNullByDefault;
  28 import org.eclipse.jdt.annotation.Nullable;
  29 import org.openhab.binding.deconz.internal.dto.SensorConfig;
  30 import org.openhab.binding.deconz.internal.dto.SensorState;
  31 import org.openhab.binding.deconz.internal.dto.ThermostatConfig;
  32 import org.openhab.binding.deconz.internal.types.ThermostatMode;
  33 import org.openhab.core.library.types.DecimalType;
  34 import org.openhab.core.library.types.QuantityType;
  35 import org.openhab.core.library.types.StringType;
  36 import org.openhab.core.thing.ChannelUID;
  37 import org.openhab.core.thing.Thing;
  38 import org.openhab.core.thing.ThingTypeUID;
  39 import org.openhab.core.types.Command;
  40 import org.openhab.core.types.RefreshType;
  41 import org.slf4j.Logger;
  42 import org.slf4j.LoggerFactory;
  43
  44 import com.google.gson.Gson;
  45
  46 /**
  47  * This sensor Thermostat Thing doesn't establish any connections, that is done by the bridge Thing.
  48  *
  49  * It waits for the bridge to come online, grab the websocket connection and bridge configuration
  50  * and registers to the websocket connection as a listener.
  51  *
  52  * A REST API call is made to get the initial sensor state.
  53  *
  54  * Only the Thermostat is supported by this Thing, because a unified state is kept
  55  * in {@link #sensorState}. Every field that got received by the REST API for this specific
  56  * sensor is published to the framework.
  57  *
  58  * @author Lukas Agethen - Initial contribution
  59  */
  60 @NonNullByDefault
  61 public class SensorThermostatThingHandler extends SensorBaseThingHandler {
  62     public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Collections.singleton(THING_TYPE_THERMOSTAT);
  63
  64     private static final List<String> CONFIG_CHANNELS = Arrays.asList(CHANNEL_BATTERY_LEVEL, CHANNEL_BATTERY_LOW,
  65             CHANNEL_HEATSETPOINT, CHANNEL_TEMPERATURE_OFFSET, CHANNEL_THERMOSTAT_MODE);
  66
  67     private final Logger logger = LoggerFactory.getLogger(SensorThermostatThingHandler.class);
  68
  69     public SensorThermostatThingHandler(Thing thing, Gson gson) {
  70         super(thing, gson);
  71     }
  72
  73     @Override
  74     public void handleCommand(ChannelUID channelUID, Command command) {
  75         if (command instanceof RefreshType) {
  76             sensorState.buttonevent = null;
  77             valueUpdated(channelUID.getId(), sensorState, false);
  78             return;
  79         }
  80         ThermostatConfig newConfig = new ThermostatConfig();
  81         String channelId = channelUID.getId();
  82         switch (channelId) {
  83             case CHANNEL_HEATSETPOINT:
  84                 Integer newHeatsetpoint = getTemperatureFromCommand(command);
  85                 if (newHeatsetpoint == null) {
  86                     logger.warn("Heatsetpoint must not be null.");
  87                     return;
  88                 }
  89                 newConfig.heatsetpoint = newHeatsetpoint;
  90                 break;
  91             case CHANNEL_TEMPERATURE_OFFSET:
  92                 Integer newOffset = getTemperatureFromCommand(command);
  93                 if (newOffset == null) {
  94                     logger.warn("Offset must not be null.");
  95                     return;
  96                 }
  97                 newConfig.offset = newOffset;
  98                 break;
  99             case CHANNEL_THERMOSTAT_MODE:
 100                 if (command instanceof StringType) {
 101                     String thermostatMode = ((StringType) command).toString();
 102                     try {
 103                         newConfig.mode = ThermostatMode.valueOf(thermostatMode);
 104                     } catch (IllegalArgumentException ex) {
 105                         logger.warn("Invalid thermostat mode: {}. Valid values: {}", thermostatMode,
 106                                 ThermostatMode.values());
 107                         return;
 108                     }
 109                     if (newConfig.mode == ThermostatMode.UNKNOWN) {
 110                         logger.warn("Invalid thermostat mode: {}. Valid values: {}", thermostatMode,
 111                                 ThermostatMode.values());
 112                         return;
 113                     }
 114                 } else {
 115                     return;
 116                 }
 117                 break;
 118             default:
 119                 // no supported command
 120                 return;
 121
 122         }
 123
 124         sendCommand(newConfig, command, channelUID, null);
 125     }
 126
 127     @Override
 128     protected void valueUpdated(ChannelUID channelUID, SensorConfig newConfig) {
 129         super.valueUpdated(channelUID, newConfig);
 130         ThermostatMode thermostatMode = newConfig.mode;
 131         String mode = thermostatMode != null ? thermostatMode.name() : ThermostatMode.UNKNOWN.name();
 132         String channelID = channelUID.getId();
 133         switch (channelID) {
 134             case CHANNEL_HEATSETPOINT:
 135                 updateQuantityTypeChannel(channelID, newConfig.heatsetpoint, CELSIUS, 1.0 / 100);
 136                 break;
 137             case CHANNEL_TEMPERATURE_OFFSET:
 138                 updateQuantityTypeChannel(channelID, newConfig.offset, CELSIUS, 1.0 / 100);
 139                 break;
 140             case CHANNEL_THERMOSTAT_MODE:
 141                 updateState(channelUID, new StringType(mode));
 142                 break;
 143         }
 144     }
 145
 146     @Override
 147     protected void valueUpdated(String channelID, SensorState newState, boolean initializing) {
 148         super.valueUpdated(channelID, newState, initializing);
 149         switch (channelID) {
 150             case CHANNEL_TEMPERATURE:
 151                 updateQuantityTypeChannel(channelID, newState.temperature, CELSIUS, 1.0 / 100);
 152                 break;
 153             case CHANNEL_VALVE_POSITION:
 154                 updateQuantityTypeChannel(channelID, newState.valve, PERCENT, 100.0 / 255);
 155                 break;
 156         }
 157     }
 158
 159     @Override
 160     protected void createTypeSpecificChannels(SensorConfig sensorConfig, SensorState sensorState) {
 161     }
 162
 163     @Override
 164     protected List<String> getConfigChannels() {
 165         return CONFIG_CHANNELS;
 166     }
 167
 168     private @Nullable Integer getTemperatureFromCommand(Command command) {
 169         BigDecimal newTemperature;
 170         if (command instanceof DecimalType) {
 171             newTemperature = ((DecimalType) command).toBigDecimal();
 172         } else if (command instanceof QuantityType) {
 173             @SuppressWarnings("unchecked")
 174             QuantityType<Temperature> temperatureCelsius = ((QuantityType<Temperature>) command).toUnit(CELSIUS);
 175             if (temperatureCelsius != null) {
 176                 newTemperature = temperatureCelsius.toBigDecimal();
 177             } else {
 178                 return null;
 179             }
 180         } else {
 181             return null;
 182         }
 183         return newTemperature.scaleByPowerOfTen(2).intValue();
 184     }
 185 }