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   1 /**
   2  * Copyright (c) 2010-2021 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.APPLIANCE_ID;
  16 import static org.openhab.binding.miele.internal.MieleBindingConstants.MIELE_DEVICE_CLASS_COFFEE_SYSTEM;
  17 import static org.openhab.binding.miele.internal.MieleBindingConstants.PROTOCOL_PROPERTY_NAME;
  18
  19 import org.openhab.binding.miele.internal.FullyQualifiedApplianceIdentifier;
  20 import org.openhab.core.library.types.OnOffType;
  21 import org.openhab.core.thing.ChannelUID;
  22 import org.openhab.core.thing.Thing;
  23 import org.openhab.core.types.Command;
  24 import org.openhab.core.types.RefreshType;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 import com.google.gson.JsonElement;
  29
  30 /**
  31  * The {@link CoffeeMachineHandler} is responsible for handling commands,
  32  * which are sent to one of the channels
  33  *
  34  * @author Stephan Esch - Initial contribution
  35  * @author Martin Lepsy - fixed handling of empty JSON results
  36  * @author Jacob Laursen - Fixed multicast and protocol support (ZigBee/LAN)
  37  */
  38 public class CoffeeMachineHandler extends MieleApplianceHandler<CoffeeMachineChannelSelector> {
  39
  40     private final Logger logger = LoggerFactory.getLogger(CoffeeMachineHandler.class);
  41
  42     public CoffeeMachineHandler(Thing thing) {
  43         super(thing, CoffeeMachineChannelSelector.class, MIELE_DEVICE_CLASS_COFFEE_SYSTEM);
  44     }
  45
  46     @Override
  47     public void handleCommand(ChannelUID channelUID, Command command) {
  48         super.handleCommand(channelUID, command);
  49
  50         String channelID = channelUID.getId();
  51         String applianceId = (String) getThing().getConfiguration().getProperties().get(APPLIANCE_ID);
  52         String protocol = getThing().getProperties().get(PROTOCOL_PROPERTY_NAME);
  53         var applianceIdentifier = new FullyQualifiedApplianceIdentifier(applianceId, protocol);
  54
  55         CoffeeMachineChannelSelector selector = (CoffeeMachineChannelSelector) getValueSelectorFromChannelID(channelID);
  56         JsonElement result = null;
  57
  58         try {
  59             if (selector != null) {
  60                 switch (selector) {
  61                     case SWITCH: {
  62                         if (command.equals(OnOffType.ON)) {
  63                             result = bridgeHandler.invokeOperation(applianceIdentifier, modelID, "switchOn");
  64                         } else if (command.equals(OnOffType.OFF)) {
  65                             result = bridgeHandler.invokeOperation(applianceIdentifier, modelID, "switchOff");
  66                         }
  67                         break;
  68                     }
  69                     default: {
  70                         if (!(command instanceof RefreshType)) {
  71                             logger.debug("{} is a read-only channel that does not accept commands",
  72                                     selector.getChannelID());
  73                         }
  74                     }
  75                 }
  76             }
  77             // process result
  78             if (isResultProcessable(result)) {
  79                 logger.debug("Result of operation is {}", result.getAsString());
  80             }
  81         } catch (IllegalArgumentException e) {
  82             logger.warn(
  83                     "An error occurred while trying to set the read-only variable associated with channel '{}' to '{}'",
  84                     channelID, command.toString());
  85         }
  86     }
  87 }