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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.*;
  16
  17 import org.eclipse.jdt.annotation.NonNullByDefault;
  18 import org.openhab.binding.tradfri.internal.model.TradfriBlindData;
  19 import org.openhab.core.library.types.DecimalType;
  20 import org.openhab.core.library.types.OnOffType;
  21 import org.openhab.core.library.types.PercentType;
  22 import org.openhab.core.library.types.StopMoveType;
  23 import org.openhab.core.library.types.UpDownType;
  24 import org.openhab.core.thing.ChannelUID;
  25 import org.openhab.core.thing.Thing;
  26 import org.openhab.core.thing.ThingStatus;
  27 import org.openhab.core.types.Command;
  28 import org.openhab.core.types.RefreshType;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 import com.google.gson.JsonElement;
  33
  34 /**
  35  * The {@link TradfriBlindHandler} is responsible for handling commands for individual blinds.
  36  *
  37  * @author Manuel Raffel - Initial contribution
  38  */
  39 @NonNullByDefault
  40 public class TradfriBlindHandler extends TradfriThingHandler {
  41
  42     private final Logger logger = LoggerFactory.getLogger(TradfriBlindHandler.class);
  43
  44     public TradfriBlindHandler(Thing thing) {
  45         super(thing);
  46     }
  47
  48     @Override
  49     public void onUpdate(JsonElement data) {
  50         if (active && !(data.isJsonNull())) {
  51             TradfriBlindData state = new TradfriBlindData(data);
  52             updateStatus(state.getReachabilityStatus() ? ThingStatus.ONLINE : ThingStatus.OFFLINE);
  53
  54             PercentType position = state.getPosition();
  55             if (position != null) {
  56                 updateState(CHANNEL_POSITION, position);
  57             }
  58
  59             DecimalType batteryLevel = state.getBatteryLevel();
  60             if (batteryLevel != null) {
  61                 updateState(CHANNEL_BATTERY_LEVEL, batteryLevel);
  62             }
  63
  64             OnOffType batteryLow = state.getBatteryLow();
  65             if (batteryLow != null) {
  66                 updateState(CHANNEL_BATTERY_LOW, batteryLow);
  67             }
  68
  69             updateDeviceProperties(state);
  70
  71             logger.debug(
  72                     "Updating thing for blindId {} to state {position: {}, firmwareVersion: {}, modelId: {}, vendor: {}}",
  73                     state.getDeviceId(), position, state.getFirmwareVersion(), state.getModelId(), state.getVendor());
  74         }
  75     }
  76
  77     private void setPosition(PercentType percent) {
  78         set(new TradfriBlindData().setPosition(percent).getJsonString());
  79     }
  80
  81     private void triggerStop() {
  82         set(new TradfriBlindData().stop().getJsonString());
  83     }
  84
  85     @Override
  86     public void handleCommand(ChannelUID channelUID, Command command) {
  87         if (active) {
  88             if (command instanceof RefreshType) {
  89                 logger.debug("Refreshing channel {}", channelUID);
  90                 coapClient.asyncGet(this);
  91                 return;
  92             }
  93
  94             switch (channelUID.getId()) {
  95                 case CHANNEL_POSITION:
  96                     handlePositionCommand(command);
  97                     break;
  98                 default:
  99                     logger.error("Unknown channel UID {}", channelUID);
 100             }
 101         }
 102     }
 103
 104     private void handlePositionCommand(Command command) {
 105         if (command instanceof PercentType) {
 106             setPosition((PercentType) command);
 107         } else if (command instanceof StopMoveType) {
 108             if (StopMoveType.STOP.equals(command)) {
 109                 triggerStop();
 110             } else {
 111                 logger.debug("Cannot handle command '{}' for channel '{}'", command, CHANNEL_POSITION);
 112             }
 113         } else if (command instanceof UpDownType) {
 114             if (UpDownType.UP.equals(command)) {
 115                 setPosition(PercentType.ZERO);
 116             } else {
 117                 setPosition(PercentType.HUNDRED);
 118             }
 119         } else {
 120             logger.debug("Cannot handle command '{}' for channel '{}'", command, CHANNEL_POSITION);
 121         }
 122     }
 123 }