git.basschouten.com Git - openhab-addons.git/blob

   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.onewire.internal.device;
  14
  15 import static org.openhab.binding.onewire.internal.OwBindingConstants.*;
  16
  17 import javax.measure.quantity.Temperature;
  18
  19 import org.eclipse.jdt.annotation.NonNullByDefault;
  20 import org.openhab.binding.onewire.internal.OwException;
  21 import org.openhab.binding.onewire.internal.SensorId;
  22 import org.openhab.binding.onewire.internal.handler.OwBaseThingHandler;
  23 import org.openhab.binding.onewire.internal.handler.OwserverBridgeHandler;
  24 import org.openhab.binding.onewire.internal.owserver.OwserverDeviceParameter;
  25 import org.openhab.core.config.core.Configuration;
  26 import org.openhab.core.library.types.DecimalType;
  27 import org.openhab.core.library.types.QuantityType;
  28 import org.openhab.core.library.unit.SIUnits;
  29 import org.openhab.core.thing.Channel;
  30 import org.openhab.core.thing.Thing;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 /**
  35  * The {@link DS18x20} class defines a DS18x20 or DS1822 device
  36  *
  37  * @author Jan N. Klug - Initial contribution
  38  */
  39 @NonNullByDefault
  40 public class DS18x20 extends AbstractOwDevice {
  41     private final Logger logger = LoggerFactory.getLogger(DS18x20.class);
  42
  43     private OwserverDeviceParameter temperatureParameter = new OwserverDeviceParameter("/temperature");
  44
  45     private boolean ignorePOR = false;
  46
  47     public DS18x20(SensorId sensorId, OwBaseThingHandler callback) {
  48         super(sensorId, callback);
  49     }
  50
  51     @Override
  52     public void configureChannels() throws OwException {
  53         Thing thing = callback.getThing();
  54         Channel temperatureChannel = thing.getChannel(CHANNEL_TEMPERATURE);
  55
  56         if (temperatureChannel != null) {
  57             Configuration channelConfiguration = temperatureChannel.getConfiguration();
  58             if (channelConfiguration.containsKey(CONFIG_RESOLUTION)) {
  59                 temperatureParameter = new OwserverDeviceParameter(
  60                         "/temperature" + (String) channelConfiguration.get(CONFIG_RESOLUTION));
  61             } else {
  62                 temperatureParameter = new OwserverDeviceParameter("/temperature");
  63             }
  64             if (channelConfiguration.containsKey(CONFIG_IGNORE_POR)) {
  65                 ignorePOR = (Boolean) channelConfiguration.get(CONFIG_IGNORE_POR);
  66             } else {
  67                 ignorePOR = false;
  68             }
  69         } else {
  70             throw new OwException(CHANNEL_TEMPERATURE + " not found");
  71         }
  72
  73         isConfigured = true;
  74     }
  75
  76     @Override
  77     public void refresh(OwserverBridgeHandler bridgeHandler, Boolean forcedRefresh) throws OwException {
  78         if (isConfigured && enabledChannels.contains(CHANNEL_TEMPERATURE)) {
  79             logger.trace("refresh of sensor {} started", sensorId);
  80             QuantityType<Temperature> temperature = new QuantityType<>(
  81                     (DecimalType) bridgeHandler.readDecimalType(sensorId, temperatureParameter), SIUnits.CELSIUS);
  82             logger.trace("read temperature {} from {}", temperature, sensorId);
  83             if (ignorePOR && (Double.compare(temperature.doubleValue(), 85.0) == 0)) {
  84                 logger.trace("ignored POR value from sensor {}", sensorId);
  85             } else {
  86                 callback.postUpdate(CHANNEL_TEMPERATURE, temperature);
  87             }
  88         }
  89     }
  90 }