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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
  22 import org.eclipse.jdt.annotation.NonNullByDefault;
  23 import org.eclipse.jdt.annotation.Nullable;
  24 import org.openhab.binding.luftdateninfo.internal.dto.SensorDataValue;
  25 import org.openhab.binding.luftdateninfo.internal.utils.NumberUtils;
  26 import org.openhab.core.library.types.QuantityType;
  27 import org.openhab.core.library.unit.SmartHomeUnits;
  28 import org.openhab.core.thing.Thing;
  29
  30 /**
  31  * The {@link NoiseHandler} is responsible for handling commands, which are
  32  * sent to one of the channels.
  33  *
  34  * @author Bernd Weymann - Initial contribution
  35  */
  36 @NonNullByDefault
  37 public class NoiseHandler extends BaseSensorHandler {
  38     protected QuantityType<Dimensionless> noiseEQCache = QuantityType.valueOf(-1, SmartHomeUnits.DECIBEL);
  39     protected QuantityType<Dimensionless> noiseMinCache = QuantityType.valueOf(-1, SmartHomeUnits.DECIBEL);
  40     protected QuantityType<Dimensionless> noiseMaxCache = QuantityType.valueOf(-1, SmartHomeUnits.DECIBEL);
  41
  42     public NoiseHandler(Thing thing) {
  43         super(thing);
  44     }
  45
  46     @Override
  47     public UpdateStatus updateChannels(@Nullable String json) {
  48         if (json != null) {
  49             List<SensorDataValue> valueList = HTTPHandler.getHandler().getLatestValues(json);
  50             if (valueList != null) {
  51                 if (HTTPHandler.getHandler().isNoise(valueList)) {
  52                     valueList.forEach(v -> {
  53                         if (v.getValueType().equals(NOISE_EQ)) {
  54                             noiseEQCache = QuantityType.valueOf(NumberUtils.round(v.getValue(), 1),
  55                                     SmartHomeUnits.DECIBEL);
  56                             updateState(NOISE_EQ_CHANNEL, noiseEQCache);
  57                         } else if (v.getValueType().equals(NOISE_MIN)) {
  58                             noiseMinCache = QuantityType.valueOf(NumberUtils.round(v.getValue(), 1),
  59                                     SmartHomeUnits.DECIBEL);
  60                             updateState(NOISE_MIN_CHANNEL, noiseMinCache);
  61                         } else if (v.getValueType().equals(NOISE_MAX)) {
  62                             noiseMaxCache = QuantityType.valueOf(NumberUtils.round(v.getValue(), 1),
  63                                     SmartHomeUnits.DECIBEL);
  64                             updateState(NOISE_MAX_CHANNEL, noiseMaxCache);
  65                         }
  66                     });
  67                     return UpdateStatus.OK;
  68                 } else {
  69                     return UpdateStatus.VALUE_ERROR;
  70                 }
  71             } else {
  72                 return UpdateStatus.VALUE_EMPTY;
  73             }
  74         } else {
  75             return UpdateStatus.CONNECTION_ERROR;
  76         }
  77     }
  78
  79     @Override
  80     protected void updateFromCache() {
  81         updateState(NOISE_EQ_CHANNEL, noiseEQCache);
  82         updateState(NOISE_MIN_CHANNEL, noiseMinCache);
  83         updateState(NOISE_MAX_CHANNEL, noiseMaxCache);
  84     }
  85 }