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   1 /**
   2  * Copyright (c) 2010-2022 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.MIELE_DEVICE_CLASS_DISHWASHER;
  16 import static org.openhab.binding.miele.internal.MieleBindingConstants.POWER_CONSUMPTION_CHANNEL_ID;
  17 import static org.openhab.binding.miele.internal.MieleBindingConstants.WATER_CONSUMPTION_CHANNEL_ID;
  18
  19 import java.math.BigDecimal;
  20
  21 import org.eclipse.jdt.annotation.NonNullByDefault;
  22 import org.openhab.binding.miele.internal.exceptions.MieleRpcException;
  23 import org.openhab.core.i18n.LocaleProvider;
  24 import org.openhab.core.i18n.TranslationProvider;
  25 import org.openhab.core.library.types.OnOffType;
  26 import org.openhab.core.library.types.QuantityType;
  27 import org.openhab.core.library.unit.Units;
  28 import org.openhab.core.thing.ChannelUID;
  29 import org.openhab.core.thing.Thing;
  30 import org.openhab.core.types.Command;
  31 import org.openhab.core.types.RefreshType;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 import com.google.gson.JsonElement;
  36
  37 /**
  38  * The {@link DishWasherHandler} is responsible for handling commands,
  39  * which are sent to one of the channels
  40  *
  41  * @author Karel Goderis - Initial contribution
  42  * @author Kai Kreuzer - fixed handling of REFRESH commands
  43  * @author Martin Lepsy - fixed handling of empty JSON results
  44  * @author Jacob Laursen - Fixed multicast and protocol support (ZigBee/LAN), added power/water consumption channels
  45  */
  46 @NonNullByDefault
  47 public class DishWasherHandler extends MieleApplianceHandler<DishwasherChannelSelector>
  48         implements ExtendedDeviceStateListener {
  49
  50     private static final int POWER_CONSUMPTION_BYTE_POSITION = 16;
  51     private static final int WATER_CONSUMPTION_BYTE_POSITION = 18;
  52     private static final int EXTENDED_STATE_MIN_SIZE_BYTES = 19;
  53
  54     private final Logger logger = LoggerFactory.getLogger(DishWasherHandler.class);
  55
  56     public DishWasherHandler(Thing thing, TranslationProvider i18nProvider, LocaleProvider localeProvider) {
  57         super(thing, i18nProvider, localeProvider, DishwasherChannelSelector.class, MIELE_DEVICE_CLASS_DISHWASHER);
  58     }
  59
  60     @Override
  61     public void handleCommand(ChannelUID channelUID, Command command) {
  62         super.handleCommand(channelUID, command);
  63
  64         String channelID = channelUID.getId();
  65         String applianceId = this.applianceId;
  66         if (applianceId == null) {
  67             logger.warn("Command '{}' failed, appliance id is unknown", command);
  68             return;
  69         }
  70
  71         DishwasherChannelSelector selector = (DishwasherChannelSelector) getValueSelectorFromChannelID(channelID);
  72         JsonElement result = null;
  73
  74         try {
  75             switch (selector) {
  76                 case SWITCH: {
  77                     MieleBridgeHandler bridgeHandler = getMieleBridgeHandler();
  78                     if (bridgeHandler == null) {
  79                         logger.warn("Command '{}' failed, missing bridge handler", command);
  80                         return;
  81                     }
  82                     if (command.equals(OnOffType.ON)) {
  83                         result = bridgeHandler.invokeOperation(applianceId, modelID, "start");
  84                     } else if (command.equals(OnOffType.OFF)) {
  85                         result = bridgeHandler.invokeOperation(applianceId, modelID, "stop");
  86                     }
  87                     break;
  88                 }
  89                 default: {
  90                     if (!(command instanceof RefreshType)) {
  91                         logger.debug("{} is a read-only channel that does not accept commands",
  92                                 selector.getChannelID());
  93                     }
  94                 }
  95             }
  96             // process result
  97             if (result != null && isResultProcessable(result)) {
  98                 logger.debug("Result of operation is {}", result.getAsString());
  99             }
 100         } catch (IllegalArgumentException e) {
 101             logger.warn(
 102                     "An error occurred while trying to set the read-only variable associated with channel '{}' to '{}'",
 103                     channelID, command.toString());
 104         } catch (MieleRpcException e) {
 105             Throwable cause = e.getCause();
 106             if (cause == null) {
 107                 logger.warn("An error occurred while trying to invoke operation: {}", e.getMessage());
 108             } else {
 109                 logger.warn("An error occurred while trying to invoke operation: {} -> {}", e.getMessage(),
 110                         cause.getMessage());
 111             }
 112         }
 113     }
 114
 115     public void onApplianceExtendedStateChanged(byte[] extendedDeviceState) {
 116         if (extendedDeviceState.length < EXTENDED_STATE_MIN_SIZE_BYTES) {
 117             logger.debug("Insufficient extended state data to extract consumption values: {}", extendedDeviceState);
 118             return;
 119         }
 120
 121         BigDecimal kiloWattHoursTenths = BigDecimal
 122                 .valueOf(extendedDeviceState[POWER_CONSUMPTION_BYTE_POSITION] & 0xff);
 123         var kiloWattHours = new QuantityType<>(kiloWattHoursTenths.divide(BigDecimal.valueOf(10)), Units.KILOWATT_HOUR);
 124         updateExtendedState(POWER_CONSUMPTION_CHANNEL_ID, kiloWattHours);
 125
 126         BigDecimal decilitres = BigDecimal.valueOf(extendedDeviceState[WATER_CONSUMPTION_BYTE_POSITION] & 0xff);
 127         var litres = new QuantityType<>(decilitres.divide(BigDecimal.valueOf(10)), Units.LITRE);
 128         updateExtendedState(WATER_CONSUMPTION_CHANNEL_ID, litres);
 129     }
 130 }