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