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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.miele.internal.handler;
  14
  15 import static org.openhab.binding.miele.internal.MieleBindingConstants.MIELE_DEVICE_CLASS_WASHING_MACHINE;
  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.api.dto.DeviceProperty;
  23 import org.openhab.binding.miele.internal.exceptions.MieleRpcException;
  24 import org.openhab.core.i18n.LocaleProvider;
  25 import org.openhab.core.i18n.TimeZoneProvider;
  26 import org.openhab.core.i18n.TranslationProvider;
  27 import org.openhab.core.library.types.OnOffType;
  28 import org.openhab.core.library.types.QuantityType;
  29 import org.openhab.core.library.unit.Units;
  30 import org.openhab.core.thing.ChannelUID;
  31 import org.openhab.core.thing.Thing;
  32 import org.openhab.core.types.Command;
  33 import org.openhab.core.types.RefreshType;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 import com.google.gson.JsonElement;
  38
  39 /**
  40  * The {@link WashingMachineHandler} is responsible for handling commands,
  41  * which are sent to one of the channels
  42  *
  43  * @author Karel Goderis - Initial contribution
  44  * @author Kai Kreuzer - fixed handling of REFRESH commands
  45  * @author Martin Lepsy - fixed handling of empty JSON results
  46  * @author Jacob Laursen - Fixed multicast and protocol support (ZigBee/LAN), added power/water consumption channels
  47  **/
  48 @NonNullByDefault
  49 public class WashingMachineHandler extends MieleApplianceHandler<WashingMachineChannelSelector>
  50         implements ExtendedDeviceStateListener {
  51
  52     private static final int POWER_CONSUMPTION_BYTE_POSITION = 51;
  53     private static final int WATER_CONSUMPTION_BYTE_POSITION = 53;
  54     private static final int EXTENDED_STATE_MIN_SIZE_BYTES = 54;
  55
  56     private final Logger logger = LoggerFactory.getLogger(WashingMachineHandler.class);
  57
  58     public WashingMachineHandler(Thing thing, TranslationProvider i18nProvider, LocaleProvider localeProvider,
  59             TimeZoneProvider timeZoneProvider) {
  60         super(thing, i18nProvider, localeProvider, timeZoneProvider, WashingMachineChannelSelector.class,
  61                 MIELE_DEVICE_CLASS_WASHING_MACHINE);
  62     }
  63
  64     @Override
  65     public void handleCommand(ChannelUID channelUID, Command command) {
  66         super.handleCommand(channelUID, command);
  67
  68         String channelID = channelUID.getId();
  69         String applianceId = this.applianceId;
  70         if (applianceId == null) {
  71             logger.warn("Command '{}' failed, appliance id is unknown", command);
  72             return;
  73         }
  74
  75         WashingMachineChannelSelector selector = (WashingMachineChannelSelector) getValueSelectorFromChannelID(
  76                 channelID);
  77         JsonElement result = null;
  78
  79         try {
  80             switch (selector) {
  81                 case SWITCH: {
  82                     MieleBridgeHandler bridgeHandler = getMieleBridgeHandler();
  83                     if (bridgeHandler == null) {
  84                         logger.warn("Command '{}' failed, missing bridge handler", command);
  85                         return;
  86                     }
  87                     if (command.equals(OnOffType.ON)) {
  88                         result = bridgeHandler.invokeOperation(applianceId, modelID, "start");
  89                     } else if (command.equals(OnOffType.OFF)) {
  90                         result = bridgeHandler.invokeOperation(applianceId, modelID, "stop");
  91                     }
  92                     break;
  93                 }
  94                 default: {
  95                     if (!(command instanceof RefreshType)) {
  96                         logger.debug("{} is a read-only channel that does not accept commands",
  97                                 selector.getChannelID());
  98                     }
  99                 }
 100             }
 101             // process result
 102             if (result != null && isResultProcessable(result)) {
 103                 logger.debug("Result of operation is {}", result.getAsString());
 104             }
 105         } catch (IllegalArgumentException e) {
 106             logger.warn(
 107                     "An error occurred while trying to set the read-only variable associated with channel '{}' to '{}'",
 108                     channelID, command.toString());
 109         } catch (MieleRpcException e) {
 110             Throwable cause = e.getCause();
 111             if (cause == null) {
 112                 logger.warn("An error occurred while trying to invoke operation: {}", e.getMessage());
 113             } else {
 114                 logger.warn("An error occurred while trying to invoke operation: {} -> {}", e.getMessage(),
 115                         cause.getMessage());
 116             }
 117         }
 118     }
 119
 120     @Override
 121     public void onAppliancePropertyChanged(DeviceProperty dp) {
 122         super.onAppliancePropertyChanged(dp);
 123         updateSwitchStartStopFromState(dp);
 124     }
 125
 126     public void onApplianceExtendedStateChanged(byte[] extendedDeviceState) {
 127         if (extendedDeviceState.length < EXTENDED_STATE_MIN_SIZE_BYTES) {
 128             logger.debug("Insufficient extended state data to extract consumption values: {}", extendedDeviceState);
 129             return;
 130         }
 131
 132         BigDecimal kiloWattHoursTenths = BigDecimal
 133                 .valueOf(extendedDeviceState[POWER_CONSUMPTION_BYTE_POSITION] & 0xff);
 134         var kiloWattHours = new QuantityType<>(kiloWattHoursTenths.divide(BigDecimal.valueOf(10)), Units.KILOWATT_HOUR);
 135         updateExtendedState(POWER_CONSUMPTION_CHANNEL_ID, kiloWattHours);
 136
 137         var litres = new QuantityType<>(BigDecimal.valueOf(extendedDeviceState[WATER_CONSUMPTION_BYTE_POSITION] & 0xff),
 138                 Units.LITRE);
 139         updateExtendedState(WATER_CONSUMPTION_CHANNEL_ID, litres);
 140     }
 141 }