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   1 /**
   2  * Copyright (c) 2010-2023 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.amazonechocontrol.internal.smarthome;
  14
  15 import static org.openhab.binding.amazonechocontrol.internal.smarthome.Constants.*;
  16
  17 import java.io.IOException;
  18 import java.util.List;
  19 import java.util.Locale;
  20
  21 import javax.measure.quantity.Temperature;
  22
  23 import org.eclipse.jdt.annotation.NonNullByDefault;
  24 import org.eclipse.jdt.annotation.Nullable;
  25 import org.openhab.binding.amazonechocontrol.internal.Connection;
  26 import org.openhab.binding.amazonechocontrol.internal.handler.SmartHomeDeviceHandler;
  27 import org.openhab.binding.amazonechocontrol.internal.jsons.JsonSmartHomeCapabilities.SmartHomeCapability;
  28 import org.openhab.binding.amazonechocontrol.internal.jsons.JsonSmartHomeDevices.SmartHomeDevice;
  29 import org.openhab.core.library.types.QuantityType;
  30 import org.openhab.core.library.unit.ImperialUnits;
  31 import org.openhab.core.library.unit.SIUnits;
  32 import org.openhab.core.types.Command;
  33 import org.openhab.core.types.StateDescription;
  34 import org.openhab.core.types.UnDefType;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 import com.google.gson.JsonObject;
  39
  40 /**
  41  * The {@link HandlerTemperatureSensor} is responsible for the Alexa.TemperatureSensorInterface
  42  *
  43  * @author Lukas Knoeller - Initial contribution
  44  * @author Michael Geramb - Initial contribution
  45  */
  46 @NonNullByDefault
  47 public class HandlerTemperatureSensor extends HandlerBase {
  48     // Logger
  49     private final Logger logger = LoggerFactory.getLogger(HandlerTemperatureSensor.class);
  50     // Interface
  51     public static final String INTERFACE = "Alexa.TemperatureSensor";
  52     // Channel definitions
  53     private static final ChannelInfo TEMPERATURE = new ChannelInfo("temperature" /* propertyName */ ,
  54             "temperature" /* ChannelId */, CHANNEL_TYPE_TEMPERATURE /* Channel Type */ ,
  55             ITEM_TYPE_NUMBER_TEMPERATURE /* Item Type */);
  56
  57     public HandlerTemperatureSensor(SmartHomeDeviceHandler smartHomeDeviceHandler) {
  58         super(smartHomeDeviceHandler);
  59     }
  60
  61     @Override
  62     public String[] getSupportedInterface() {
  63         return new String[] { INTERFACE };
  64     }
  65
  66     @Override
  67     protected ChannelInfo @Nullable [] findChannelInfos(SmartHomeCapability capability, String property) {
  68         if (TEMPERATURE.propertyName.equals(property)) {
  69             return new ChannelInfo[] { TEMPERATURE };
  70         }
  71         return null;
  72     }
  73
  74     @Override
  75     public void updateChannels(String interfaceName, List<JsonObject> stateList, UpdateChannelResult result) {
  76         QuantityType<Temperature> temperatureValue = null;
  77         for (JsonObject state : stateList) {
  78             logger.debug("Updating {} with state: {}", interfaceName, state.toString());
  79             if (TEMPERATURE.propertyName.equals(state.get("name").getAsString())) {
  80                 JsonObject value = state.get("value").getAsJsonObject();
  81                 // For groups take the first
  82                 if (temperatureValue == null) {
  83                     float temperature = value.get("value").getAsFloat();
  84                     String scale = value.get("scale").getAsString();
  85                     if ("CELSIUS".equals(scale)) {
  86                         temperatureValue = new QuantityType<Temperature>(temperature, SIUnits.CELSIUS);
  87                     } else {
  88                         temperatureValue = new QuantityType<Temperature>(temperature, ImperialUnits.FAHRENHEIT);
  89                     }
  90                 }
  91             }
  92         }
  93         updateState(TEMPERATURE.channelId, temperatureValue == null ? UnDefType.UNDEF : temperatureValue);
  94     }
  95
  96     @Override
  97     public boolean handleCommand(Connection connection, SmartHomeDevice shd, String entityId,
  98             List<SmartHomeCapability> capabilities, String channelId, Command command) throws IOException {
  99         return false;
 100     }
 101
 102     @Override
 103     public @Nullable StateDescription findStateDescription(String channelId, StateDescription originalStateDescription,
 104             @Nullable Locale locale) {
 105         return null;
 106     }
 107 }