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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.luftdateninfo.internal.handler;
  14
  15 import static org.openhab.binding.luftdateninfo.internal.LuftdatenInfoBindingConstants.*;
  16 import static org.openhab.binding.luftdateninfo.internal.handler.HTTPHandler.*;
  17
  18 import java.util.List;
  19
  20 import javax.measure.quantity.Dimensionless;
  21 import javax.measure.quantity.Pressure;
  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.luftdateninfo.internal.dto.SensorDataValue;
  27 import org.openhab.binding.luftdateninfo.internal.utils.NumberUtils;
  28 import org.openhab.core.library.types.QuantityType;
  29 import org.openhab.core.library.unit.SIUnits;
  30 import org.openhab.core.library.unit.Units;
  31 import org.openhab.core.thing.Thing;
  32
  33 /**
  34  * The {@link ConditionHandler} is responsible for handling commands, which are
  35  * sent to one of the channels.
  36  *
  37  * @author Bernd Weymann - Initial contribution
  38  */
  39 @NonNullByDefault
  40 public class ConditionHandler extends BaseSensorHandler {
  41
  42     protected QuantityType<Temperature> temperatureCache = QuantityType.valueOf(-1, SIUnits.CELSIUS);
  43     protected QuantityType<Dimensionless> humidityCache = QuantityType.valueOf(-1, Units.PERCENT);
  44     protected QuantityType<Pressure> pressureCache = QuantityType.valueOf(-1, SIUnits.PASCAL);
  45     protected QuantityType<Pressure> pressureSeaCache = QuantityType.valueOf(-1, SIUnits.PASCAL);
  46
  47     public ConditionHandler(Thing thing) {
  48         super(thing);
  49     }
  50
  51     @Override
  52     public UpdateStatus updateChannels(@Nullable String json) {
  53         if (json != null) {
  54             List<SensorDataValue> valueList = HTTPHandler.getHandler().getLatestValues(json);
  55             if (valueList != null) {
  56                 if (HTTPHandler.getHandler().isCondition(valueList)) {
  57                     valueList.forEach(v -> {
  58                         if (v.getValueType().equals(TEMPERATURE)) {
  59                             temperatureCache = QuantityType.valueOf(NumberUtils.round(v.getValue(), 1),
  60                                     SIUnits.CELSIUS);
  61                             updateState(TEMPERATURE_CHANNEL, temperatureCache);
  62                         } else if (v.getValueType().equals(HUMIDITY)) {
  63                             humidityCache = QuantityType.valueOf(NumberUtils.round(v.getValue(), 1), Units.PERCENT);
  64                             updateState(HUMIDITY_CHANNEL, humidityCache);
  65                         } else if (v.getValueType().equals(PRESSURE)) {
  66                             pressureCache = QuantityType.valueOf(NumberUtils.round(v.getValue(), 1), SIUnits.PASCAL);
  67                             updateState(PRESSURE_CHANNEL, pressureCache);
  68                         } else if (v.getValueType().equals(PRESSURE_SEALEVEL)) {
  69                             pressureSeaCache = QuantityType.valueOf(NumberUtils.round(v.getValue(), 1), SIUnits.PASCAL);
  70                             updateState(PRESSURE_SEA_CHANNEL, pressureSeaCache);
  71                         }
  72                     });
  73                     return UpdateStatus.OK;
  74                 } else {
  75                     return UpdateStatus.VALUE_ERROR;
  76                 }
  77             } else {
  78                 return UpdateStatus.VALUE_EMPTY;
  79             }
  80         } else {
  81             return UpdateStatus.CONNECTION_ERROR;
  82         }
  83     }
  84
  85     @Override
  86     protected void updateFromCache() {
  87         updateState(TEMPERATURE_CHANNEL, temperatureCache);
  88         updateState(HUMIDITY_CHANNEL, humidityCache);
  89         updateState(PRESSURE_CHANNEL, pressureCache);
  90         updateState(PRESSURE_SEA_CHANNEL, pressureSeaCache);
  91     }
  92 }