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