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