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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_COFFEE_SYSTEM;
  16
  17 import org.eclipse.jdt.annotation.NonNullByDefault;
  18 import org.openhab.binding.miele.internal.api.dto.DeviceProperty;
  19 import org.openhab.binding.miele.internal.exceptions.MieleRpcException;
  20 import org.openhab.core.i18n.LocaleProvider;
  21 import org.openhab.core.i18n.TranslationProvider;
  22 import org.openhab.core.library.types.OnOffType;
  23 import org.openhab.core.thing.ChannelUID;
  24 import org.openhab.core.thing.Thing;
  25 import org.openhab.core.types.Command;
  26 import org.openhab.core.types.RefreshType;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 import com.google.gson.JsonElement;
  31
  32 /**
  33  * The {@link CoffeeMachineHandler} is responsible for handling commands,
  34  * which are sent to one of the channels
  35  *
  36  * @author Stephan Esch - Initial contribution
  37  * @author Martin Lepsy - fixed handling of empty JSON results
  38  * @author Jacob Laursen - Fixed multicast and protocol support (ZigBee/LAN)
  39  */
  40 @NonNullByDefault
  41 public class CoffeeMachineHandler extends MieleApplianceHandler<CoffeeMachineChannelSelector> {
  42
  43     private final Logger logger = LoggerFactory.getLogger(CoffeeMachineHandler.class);
  44
  45     public CoffeeMachineHandler(Thing thing, TranslationProvider i18nProvider, LocaleProvider localeProvider) {
  46         super(thing, i18nProvider, localeProvider, CoffeeMachineChannelSelector.class,
  47                 MIELE_DEVICE_CLASS_COFFEE_SYSTEM);
  48     }
  49
  50     @Override
  51     public void handleCommand(ChannelUID channelUID, Command command) {
  52         super.handleCommand(channelUID, command);
  53
  54         String channelID = channelUID.getId();
  55         String applianceId = this.applianceId;
  56         if (applianceId == null) {
  57             logger.warn("Command '{}' failed, appliance id is unknown", command);
  58             return;
  59         }
  60
  61         CoffeeMachineChannelSelector selector = (CoffeeMachineChannelSelector) getValueSelectorFromChannelID(channelID);
  62         JsonElement result = null;
  63
  64         try {
  65             switch (selector) {
  66                 case SWITCH: {
  67                     MieleBridgeHandler bridgeHandler = getMieleBridgeHandler();
  68                     if (bridgeHandler == null) {
  69                         logger.warn("Command '{}' failed, missing bridge handler", command);
  70                         return;
  71                     }
  72                     if (command.equals(OnOffType.ON)) {
  73                         result = bridgeHandler.invokeOperation(applianceId, modelID, "switchOn");
  74                     } else if (command.equals(OnOffType.OFF)) {
  75                         result = bridgeHandler.invokeOperation(applianceId, modelID, "switchOff");
  76                     }
  77                     break;
  78                 }
  79                 default: {
  80                     if (!(command instanceof RefreshType)) {
  81                         logger.debug("{} is a read-only channel that does not accept commands",
  82                                 selector.getChannelID());
  83                     }
  84                 }
  85             }
  86             // process result
  87             if (result != null && isResultProcessable(result)) {
  88                 logger.debug("Result of operation is {}", result.getAsString());
  89             }
  90         } catch (IllegalArgumentException e) {
  91             logger.warn(
  92                     "An error occurred while trying to set the read-only variable associated with channel '{}' to '{}'",
  93                     channelID, command.toString());
  94         } catch (MieleRpcException e) {
  95             Throwable cause = e.getCause();
  96             if (cause == null) {
  97                 logger.warn("An error occurred while trying to invoke operation: {}", e.getMessage());
  98             } else {
  99                 logger.warn("An error occurred while trying to invoke operation: {} -> {}", e.getMessage(),
 100                         cause.getMessage());
 101             }
 102         }
 103     }
 104
 105     @Override
 106     public void onAppliancePropertyChanged(DeviceProperty dp) {
 107         super.onAppliancePropertyChanged(dp);
 108         updateSwitchOnOffFromState(dp);
 109     }
 110 }