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   1 /**
   2  * Copyright (c) 2010-2021 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.miele.internal.handler;
  14
  15 import static org.openhab.binding.miele.internal.MieleBindingConstants.APPLIANCE_ID;
  16 import static org.openhab.binding.miele.internal.MieleBindingConstants.POWER_CONSUMPTION_CHANNEL_ID;
  17 import static org.openhab.binding.miele.internal.MieleBindingConstants.PROTOCOL_PROPERTY_NAME;
  18 import static org.openhab.binding.miele.internal.MieleBindingConstants.WATER_CONSUMPTION_CHANNEL_ID;
  19
  20 import java.math.BigDecimal;
  21
  22 import org.openhab.binding.miele.internal.FullyQualifiedApplianceIdentifier;
  23 import org.openhab.core.library.types.OnOffType;
  24 import org.openhab.core.library.types.QuantityType;
  25 import org.openhab.core.library.unit.Units;
  26 import org.openhab.core.thing.ChannelUID;
  27 import org.openhab.core.thing.Thing;
  28 import org.openhab.core.types.Command;
  29 import org.openhab.core.types.RefreshType;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 import com.google.gson.JsonElement;
  34
  35 /**
  36  * The {@link DishWasherHandler} is responsible for handling commands,
  37  * which are sent to one of the channels
  38  *
  39  * @author Karel Goderis - Initial contribution
  40  * @author Kai Kreuzer - fixed handling of REFRESH commands
  41  * @author Martin Lepsy - fixed handling of empty JSON results
  42  * @author Jacob Laursen - Fixed multicast and protocol support (ZigBee/LAN), added power/water consumption channels
  43  */
  44 public class DishWasherHandler extends MieleApplianceHandler<DishwasherChannelSelector>
  45         implements ExtendedDeviceStateListener {
  46
  47     private static final int POWER_CONSUMPTION_BYTE_POSITION = 16;
  48     private static final int WATER_CONSUMPTION_BYTE_POSITION = 18;
  49     private static final int EXTENDED_STATE_MIN_SIZE_BYTES = 19;
  50
  51     private final Logger logger = LoggerFactory.getLogger(DishWasherHandler.class);
  52
  53     public DishWasherHandler(Thing thing) {
  54         super(thing, DishwasherChannelSelector.class, "Dishwasher");
  55     }
  56
  57     @Override
  58     public void handleCommand(ChannelUID channelUID, Command command) {
  59         super.handleCommand(channelUID, command);
  60
  61         String channelID = channelUID.getId();
  62         String applianceId = (String) getThing().getConfiguration().getProperties().get(APPLIANCE_ID);
  63         String protocol = getThing().getProperties().get(PROTOCOL_PROPERTY_NAME);
  64         var applianceIdentifier = new FullyQualifiedApplianceIdentifier(applianceId, protocol);
  65
  66         DishwasherChannelSelector selector = (DishwasherChannelSelector) getValueSelectorFromChannelID(channelID);
  67         JsonElement result = null;
  68
  69         try {
  70             if (selector != null) {
  71                 switch (selector) {
  72                     case SWITCH: {
  73                         if (command.equals(OnOffType.ON)) {
  74                             result = bridgeHandler.invokeOperation(applianceIdentifier, modelID, "start");
  75                         } else if (command.equals(OnOffType.OFF)) {
  76                             result = bridgeHandler.invokeOperation(applianceIdentifier, modelID, "stop");
  77                         }
  78                         break;
  79                     }
  80                     default: {
  81                         if (!(command instanceof RefreshType)) {
  82                             logger.debug("{} is a read-only channel that does not accept commands",
  83                                     selector.getChannelID());
  84                         }
  85                     }
  86                 }
  87             }
  88             // process result
  89             if (isResultProcessable(result)) {
  90                 logger.debug("Result of operation is {}", result.getAsString());
  91             }
  92         } catch (IllegalArgumentException e) {
  93             logger.warn(
  94                     "An error occurred while trying to set the read-only variable associated with channel '{}' to '{}'",
  95                     channelID, command.toString());
  96         }
  97     }
  98
  99     public void onApplianceExtendedStateChanged(byte[] extendedDeviceState) {
 100         if (extendedDeviceState.length < EXTENDED_STATE_MIN_SIZE_BYTES) {
 101             logger.warn("Unexpected size of extended state: {}", extendedDeviceState);
 102             return;
 103         }
 104
 105         BigDecimal kiloWattHoursTenths = BigDecimal
 106                 .valueOf(extendedDeviceState[POWER_CONSUMPTION_BYTE_POSITION] & 0xff);
 107         var kiloWattHours = new QuantityType<>(kiloWattHoursTenths.divide(BigDecimal.valueOf(10)), Units.KILOWATT_HOUR);
 108         updateExtendedState(POWER_CONSUMPTION_CHANNEL_ID, kiloWattHours);
 109
 110         BigDecimal decilitres = BigDecimal.valueOf(extendedDeviceState[WATER_CONSUMPTION_BYTE_POSITION] & 0xff);
 111         var litres = new QuantityType<>(decilitres.divide(BigDecimal.valueOf(10)), Units.LITRE);
 112         updateExtendedState(WATER_CONSUMPTION_CHANNEL_ID, litres);
 113     }
 114 }