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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.tradfri.internal.handler;
  14
  15 import static org.openhab.binding.tradfri.internal.TradfriBindingConstants.CHANNEL_POWER;
  16
  17 import org.eclipse.jdt.annotation.NonNullByDefault;
  18 import org.openhab.binding.tradfri.internal.model.TradfriPlugData;
  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.thing.ThingStatus;
  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 TradfriPlugHandler} is responsible for handling commands for individual plugs.
  32  *
  33  * @author Kai Kreuzer - Initial contribution
  34  */
  35 @NonNullByDefault
  36 public class TradfriPlugHandler extends TradfriThingHandler {
  37
  38     private final Logger logger = LoggerFactory.getLogger(TradfriPlugHandler.class);
  39
  40     public TradfriPlugHandler(Thing thing) {
  41         super(thing);
  42     }
  43
  44     @Override
  45     public void onUpdate(JsonElement data) {
  46         if (active && !(data.isJsonNull())) {
  47             TradfriPlugData state = new TradfriPlugData(data);
  48             updateStatus(state.getReachabilityStatus() ? ThingStatus.ONLINE : ThingStatus.OFFLINE);
  49
  50             updateState(CHANNEL_POWER, state.getOnOffState() ? OnOffType.ON : OnOffType.OFF);
  51             updateDeviceProperties(state);
  52         }
  53     }
  54
  55     private void setState(OnOffType onOff) {
  56         TradfriPlugData data = new TradfriPlugData();
  57         data.setOnOffState(onOff == OnOffType.ON);
  58         set(data.getJsonString());
  59     }
  60
  61     @Override
  62     public void handleCommand(ChannelUID channelUID, Command command) {
  63         if (active) {
  64             if (command instanceof RefreshType) {
  65                 logger.debug("Refreshing channel {}", channelUID);
  66                 coapClient.asyncGet(this);
  67                 return;
  68             }
  69
  70             switch (channelUID.getId()) {
  71                 case CHANNEL_POWER:
  72                     if (command instanceof OnOffType) {
  73                         setState(((OnOffType) command));
  74                     } else {
  75                         logger.debug("Cannot handle command '{}' for channel '{}'", command, CHANNEL_POWER);
  76                     }
  77                     break;
  78                 default:
  79                     logger.error("Unknown channel UID {}", channelUID);
  80             }
  81         }
  82     }
  83 }