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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.sensorcommunity.internal.handler;
  14
  15 import static org.openhab.binding.sensorcommunity.internal.SensorCommunityBindingConstants.*;
  16 import static org.openhab.binding.sensorcommunity.internal.utils.Constants.*;
  17 import static org.openhab.core.library.unit.MetricPrefix.HECTO;
  18
  19 import java.util.List;
  20
  21 import javax.measure.quantity.Dimensionless;
  22 import javax.measure.quantity.Pressure;
  23 import javax.measure.quantity.Temperature;
  24
  25 import org.eclipse.jdt.annotation.NonNullByDefault;
  26 import org.eclipse.jdt.annotation.Nullable;
  27 import org.openhab.binding.sensorcommunity.internal.dto.SensorDataValue;
  28 import org.openhab.binding.sensorcommunity.internal.utils.NumberUtils;
  29 import org.openhab.core.library.types.QuantityType;
  30 import org.openhab.core.library.unit.SIUnits;
  31 import org.openhab.core.library.unit.Units;
  32 import org.openhab.core.thing.Thing;
  33
  34 /**
  35  * The {@link ConditionHandler} is responsible for handling commands, which are
  36  * sent to one of the channels.
  37  *
  38  * @author Bernd Weymann - Initial contribution
  39  */
  40 @NonNullByDefault
  41 public class ConditionHandler extends BaseSensorHandler {
  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, HECTO(SIUnits.PASCAL));
  45     protected QuantityType<Pressure> pressureSeaCache = QuantityType.valueOf(-1, HECTO(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().endsWith(TEMPERATURE)) {
  59                             temperatureCache = QuantityType.valueOf(NumberUtils.round(v.getValue(), 1),
  60                                     SIUnits.CELSIUS);
  61                             updateState(TEMPERATURE_CHANNEL, temperatureCache);
  62                         } else if (v.getValueType().endsWith(HUMIDITY)) {
  63                             humidityCache = QuantityType.valueOf(NumberUtils.round(v.getValue(), 1), Units.PERCENT);
  64                             updateState(HUMIDITY_CHANNEL, humidityCache);
  65                         } else if (v.getValueType().endsWith(PRESSURE)) {
  66                             pressureCache = QuantityType.valueOf(
  67                                     NumberUtils.round(NumberUtils.convert(v.getValue()) / 100, 1),
  68                                     HECTO(SIUnits.PASCAL));
  69                             updateState(PRESSURE_CHANNEL, pressureCache);
  70                         } else if (v.getValueType().endsWith(PRESSURE_SEALEVEL)) {
  71                             pressureSeaCache = QuantityType.valueOf(
  72                                     NumberUtils.round(NumberUtils.convert(v.getValue()) / 100, 1),
  73                                     HECTO(SIUnits.PASCAL));
  74                             updateState(PRESSURE_SEA_CHANNEL, pressureSeaCache);
  75                         }
  76                     });
  77                     return UpdateStatus.OK;
  78                 } else {
  79                     return UpdateStatus.VALUE_ERROR;
  80                 }
  81             } else {
  82                 return UpdateStatus.VALUE_EMPTY;
  83             }
  84         } else {
  85             return UpdateStatus.CONNECTION_ERROR;
  86         }
  87     }
  88
  89     @Override
  90     protected void updateFromCache() {
  91         updateState(TEMPERATURE_CHANNEL, temperatureCache);
  92         updateState(HUMIDITY_CHANNEL, humidityCache);
  93         updateState(PRESSURE_CHANNEL, pressureCache);
  94         updateState(PRESSURE_SEA_CHANNEL, pressureSeaCache);
  95     }
  96 }