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