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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.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 WashingMachineHandler} 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 WashingMachineHandler extends MieleApplianceHandler<WashingMachineChannelSelector>
  48         implements ExtendedDeviceStateListener {
  49
  50     private static final int POWER_CONSUMPTION_BYTE_POSITION = 51;
  51     private static final int WATER_CONSUMPTION_BYTE_POSITION = 53;
  52     private static final int EXTENDED_STATE_MIN_SIZE_BYTES = 54;
  53
  54     private final Logger logger = LoggerFactory.getLogger(WashingMachineHandler.class);
  55
  56     public WashingMachineHandler(Thing thing, TranslationProvider i18nProvider, LocaleProvider localeProvider) {
  57         super(thing, i18nProvider, localeProvider, WashingMachineChannelSelector.class,
  58                 MIELE_DEVICE_CLASS_WASHING_MACHINE);
  59     }
  60
  61     @Override
  62     public void handleCommand(ChannelUID channelUID, Command command) {
  63         super.handleCommand(channelUID, command);
  64
  65         String channelID = channelUID.getId();
  66         String applianceId = this.applianceId;
  67         if (applianceId == null) {
  68             logger.warn("Command '{}' failed, appliance id is unknown", command);
  69             return;
  70         }
  71
  72         WashingMachineChannelSelector selector = (WashingMachineChannelSelector) getValueSelectorFromChannelID(
  73                 channelID);
  74         JsonElement result = null;
  75
  76         try {
  77             switch (selector) {
  78                 case SWITCH: {
  79                     MieleBridgeHandler bridgeHandler = getMieleBridgeHandler();
  80                     if (bridgeHandler == null) {
  81                         logger.warn("Command '{}' failed, missing bridge handler", command);
  82                         return;
  83                     }
  84                     if (command.equals(OnOffType.ON)) {
  85                         result = bridgeHandler.invokeOperation(applianceId, modelID, "start");
  86                     } else if (command.equals(OnOffType.OFF)) {
  87                         result = bridgeHandler.invokeOperation(applianceId, modelID, "stop");
  88                     }
  89                     break;
  90                 }
  91                 default: {
  92                     if (!(command instanceof RefreshType)) {
  93                         logger.debug("{} is a read-only channel that does not accept commands",
  94                                 selector.getChannelID());
  95                     }
  96                 }
  97             }
  98             // process result
  99             if (result != null && isResultProcessable(result)) {
 100                 logger.debug("Result of operation is {}", result.getAsString());
 101             }
 102         } catch (IllegalArgumentException e) {
 103             logger.warn(
 104                     "An error occurred while trying to set the read-only variable associated with channel '{}' to '{}'",
 105                     channelID, command.toString());
 106         } catch (MieleRpcException e) {
 107             Throwable cause = e.getCause();
 108             if (cause == null) {
 109                 logger.warn("An error occurred while trying to invoke operation: {}", e.getMessage());
 110             } else {
 111                 logger.warn("An error occurred while trying to invoke operation: {} -> {}", e.getMessage(),
 112                         cause.getMessage());
 113             }
 114         }
 115     }
 116
 117     public void onApplianceExtendedStateChanged(byte[] extendedDeviceState) {
 118         if (extendedDeviceState.length < EXTENDED_STATE_MIN_SIZE_BYTES) {
 119             logger.warn("Unexpected size of extended state: {}", extendedDeviceState);
 120             return;
 121         }
 122
 123         BigDecimal kiloWattHoursTenths = BigDecimal
 124                 .valueOf(extendedDeviceState[POWER_CONSUMPTION_BYTE_POSITION] & 0xff);
 125         var kiloWattHours = new QuantityType<>(kiloWattHoursTenths.divide(BigDecimal.valueOf(10)), Units.KILOWATT_HOUR);
 126         updateExtendedState(POWER_CONSUMPTION_CHANNEL_ID, kiloWattHours);
 127
 128         var litres = new QuantityType<>(BigDecimal.valueOf(extendedDeviceState[WATER_CONSUMPTION_BYTE_POSITION] & 0xff),
 129                 Units.LITRE);
 130         updateExtendedState(WATER_CONSUMPTION_CHANNEL_ID, litres);
 131     }
 132 }