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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.miio.internal.handler;
  14
  15 import static org.openhab.binding.miio.internal.MiIoBindingConstants.*;
  16
  17 import java.awt.Color;
  18 import java.io.IOException;
  19 import java.net.URL;
  20 import java.util.ArrayList;
  21 import java.util.HashMap;
  22 import java.util.LinkedHashSet;
  23 import java.util.List;
  24 import java.util.Map;
  25 import java.util.Map.Entry;
  26 import java.util.concurrent.TimeUnit;
  27
  28 import javax.measure.Unit;
  29 import javax.measure.format.ParserException;
  30
  31 import org.eclipse.jdt.annotation.NonNullByDefault;
  32 import org.eclipse.jdt.annotation.Nullable;
  33 import org.openhab.binding.miio.internal.MiIoBindingConfiguration;
  34 import org.openhab.binding.miio.internal.MiIoCommand;
  35 import org.openhab.binding.miio.internal.MiIoQuantiyTypes;
  36 import org.openhab.binding.miio.internal.MiIoSendCommand;
  37 import org.openhab.binding.miio.internal.Utils;
  38 import org.openhab.binding.miio.internal.basic.ActionConditions;
  39 import org.openhab.binding.miio.internal.basic.BasicChannelTypeProvider;
  40 import org.openhab.binding.miio.internal.basic.CommandParameterType;
  41 import org.openhab.binding.miio.internal.basic.Conversions;
  42 import org.openhab.binding.miio.internal.basic.MiIoBasicChannel;
  43 import org.openhab.binding.miio.internal.basic.MiIoBasicDevice;
  44 import org.openhab.binding.miio.internal.basic.MiIoDatabaseWatchService;
  45 import org.openhab.binding.miio.internal.basic.MiIoDeviceAction;
  46 import org.openhab.binding.miio.internal.basic.MiIoDeviceActionCondition;
  47 import org.openhab.binding.miio.internal.cloud.CloudConnector;
  48 import org.openhab.binding.miio.internal.transport.MiIoAsyncCommunication;
  49 import org.openhab.core.cache.ExpiringCache;
  50 import org.openhab.core.library.types.DecimalType;
  51 import org.openhab.core.library.types.HSBType;
  52 import org.openhab.core.library.types.OnOffType;
  53 import org.openhab.core.library.types.PercentType;
  54 import org.openhab.core.library.types.QuantityType;
  55 import org.openhab.core.library.types.StringType;
  56 import org.openhab.core.library.unit.SIUnits;
  57 import org.openhab.core.library.unit.Units;
  58 import org.openhab.core.thing.Channel;
  59 import org.openhab.core.thing.ChannelUID;
  60 import org.openhab.core.thing.Thing;
  61 import org.openhab.core.thing.binding.builder.ChannelBuilder;
  62 import org.openhab.core.thing.binding.builder.ThingBuilder;
  63 import org.openhab.core.thing.type.ChannelTypeRegistry;
  64 import org.openhab.core.thing.type.ChannelTypeUID;
  65 import org.openhab.core.types.Command;
  66 import org.openhab.core.types.RefreshType;
  67 import org.slf4j.Logger;
  68 import org.slf4j.LoggerFactory;
  69
  70 import com.google.gson.Gson;
  71 import com.google.gson.GsonBuilder;
  72 import com.google.gson.JsonArray;
  73 import com.google.gson.JsonElement;
  74 import com.google.gson.JsonIOException;
  75 import com.google.gson.JsonObject;
  76 import com.google.gson.JsonPrimitive;
  77 import com.google.gson.JsonSyntaxException;
  78
  79 /**
  80  * The {@link MiIoBasicHandler} is responsible for handling commands, which are
  81  * sent to one of the channels.
  82  *
  83  * @author Marcel Verpaalen - Initial contribution
  84  */
  85 @NonNullByDefault
  86 public class MiIoBasicHandler extends MiIoAbstractHandler {
  87     private final Logger logger = LoggerFactory.getLogger(MiIoBasicHandler.class);
  88     private boolean hasChannelStructure;
  89
  90     private final ExpiringCache<Boolean> updateDataCache = new ExpiringCache<>(CACHE_EXPIRY, () -> {
  91         miIoScheduler.schedule(this::updateData, 0, TimeUnit.SECONDS);
  92         return true;
  93     });
  94
  95     List<MiIoBasicChannel> refreshList = new ArrayList<>();
  96     private Map<String, MiIoBasicChannel> refreshListCustomCommands = new HashMap<>();
  97
  98     private @Nullable MiIoBasicDevice miioDevice;
  99     private Map<ChannelUID, MiIoBasicChannel> actions = new HashMap<>();
 100     private ChannelTypeRegistry channelTypeRegistry;
 101     private BasicChannelTypeProvider basicChannelTypeProvider;
 102
 103     public MiIoBasicHandler(Thing thing, MiIoDatabaseWatchService miIoDatabaseWatchService,
 104             CloudConnector cloudConnector, ChannelTypeRegistry channelTypeRegistry,
 105             BasicChannelTypeProvider basicChannelTypeProvider) {
 106         super(thing, miIoDatabaseWatchService, cloudConnector);
 107         this.channelTypeRegistry = channelTypeRegistry;
 108         this.basicChannelTypeProvider = basicChannelTypeProvider;
 109     }
 110
 111     @Override
 112     public void initialize() {
 113         super.initialize();
 114         hasChannelStructure = false;
 115         isIdentified = false;
 116         refreshList = new ArrayList<>();
 117         refreshListCustomCommands = new HashMap<>();
 118     }
 119
 120     @Override
 121     public void handleCommand(ChannelUID channelUID, Command receivedCommand) {
 122         Command command = receivedCommand;
 123         if (command == RefreshType.REFRESH) {
 124             if (updateDataCache.isExpired()) {
 125                 logger.debug("Refreshing {}", channelUID);
 126                 updateDataCache.getValue();
 127             } else {
 128                 logger.debug("Refresh {} skipped. Already refreshing", channelUID);
 129             }
 130             return;
 131         }
 132         if (channelUID.getId().equals(CHANNEL_COMMAND)) {
 133             cmds.put(sendCommand(command.toString()), command.toString());
 134             return;
 135         }
 136         logger.debug("Locating action for {} channel '{}': '{}'", getThing().getUID(), channelUID.getId(), command);
 137         if (!actions.isEmpty()) {
 138             final MiIoBasicChannel miIoBasicChannel = actions.get(channelUID);
 139             if (miIoBasicChannel != null) {
 140                 int valuePos = 0;
 141                 for (MiIoDeviceAction action : miIoBasicChannel.getActions()) {
 142                     @Nullable
 143                     JsonElement value = null;
 144                     JsonArray parameters = action.getParameters().deepCopy();
 145                     for (int i = 0; i < action.getParameters().size(); i++) {
 146                         JsonElement p = action.getParameters().get(i);
 147                         if (p.isJsonPrimitive() && p.getAsString().toLowerCase().contains("$value$")) {
 148                             valuePos = i;
 149                             break;
 150                         }
 151                     }
 152                     String cmd = action.getCommand();
 153                     CommandParameterType paramType = action.getparameterType();
 154                     if (command instanceof QuantityType) {
 155                         QuantityType<?> qtc = null;
 156                         try {
 157                             if (!miIoBasicChannel.getUnit().isBlank()) {
 158                                 Unit<?> unit = MiIoQuantiyTypes.get(miIoBasicChannel.getUnit());
 159                                 if (unit != null) {
 160                                     qtc = ((QuantityType<?>) command).toUnit(unit);
 161                                 }
 162                             }
 163                         } catch (ParserException e) {
 164                             // swallow
 165                         }
 166                         if (qtc != null) {
 167                             command = new DecimalType(qtc.toBigDecimal());
 168                         } else {
 169                             logger.debug("Could not convert QuantityType to '{}'", miIoBasicChannel.getUnit());
 170                             command = new DecimalType(((QuantityType<?>) command).toBigDecimal());
 171                         }
 172                     }
 173                     if (paramType == CommandParameterType.COLOR) {
 174                         if (command instanceof HSBType) {
 175                             HSBType hsb = (HSBType) command;
 176                             Color color = Color.getHSBColor(hsb.getHue().floatValue() / 360,
 177                                     hsb.getSaturation().floatValue() / 100, hsb.getBrightness().floatValue() / 100);
 178                             value = new JsonPrimitive(
 179                                     (color.getRed() << 16) + (color.getGreen() << 8) + color.getBlue());
 180                         } else if (command instanceof DecimalType) {
 181                             // actually brightness is being set instead of a color
 182                             value = new JsonPrimitive(((DecimalType) command).toBigDecimal());
 183                         } else if (command instanceof OnOffType) {
 184                             value = new JsonPrimitive(command == OnOffType.ON ? 100 : 0);
 185                         } else {
 186                             logger.debug("Unsupported command for COLOR: {}", command);
 187                         }
 188                     } else if (command instanceof OnOffType) {
 189                         if (paramType == CommandParameterType.ONOFF) {
 190                             value = new JsonPrimitive(command == OnOffType.ON ? "on" : "off");
 191                         } else if (paramType == CommandParameterType.ONOFFPARA) {
 192                             cmd = cmd.replace("*", command == OnOffType.ON ? "on" : "off");
 193                             value = new JsonArray();
 194                         } else if (paramType == CommandParameterType.ONOFFBOOL) {
 195                             boolean boolCommand = command == OnOffType.ON;
 196                             value = new JsonPrimitive(boolCommand);
 197                         } else if (paramType == CommandParameterType.ONOFFBOOLSTRING) {
 198                             value = new JsonPrimitive(command == OnOffType.ON ? "true" : "false");
 199                         }
 200                     } else if (command instanceof DecimalType) {
 201                         value = new JsonPrimitive(((DecimalType) command).toBigDecimal());
 202                     } else if (command instanceof StringType) {
 203                         if (paramType == CommandParameterType.STRING) {
 204                             value = new JsonPrimitive(command.toString().toLowerCase());
 205                         } else if (paramType == CommandParameterType.CUSTOMSTRING) {
 206                             value = new JsonPrimitive(parameters.get(valuePos).getAsString().replace("$value",
 207                                     command.toString().toLowerCase()));
 208                         }
 209                     } else {
 210                         value = new JsonPrimitive(command.toString().toLowerCase());
 211                     }
 212                     if (paramType == CommandParameterType.EMPTY) {
 213                         value = new JsonArray();
 214                     }
 215                     final MiIoDeviceActionCondition miIoDeviceActionCondition = action.getCondition();
 216                     if (miIoDeviceActionCondition != null) {
 217                         value = ActionConditions.executeAction(miIoDeviceActionCondition, deviceVariables, value,
 218                                 command);
 219                     }
 220                     // Check for miot channel
 221                     if (value != null) {
 222                         if (action.isMiOtAction()) {
 223                             value = miotActionTransform(action, miIoBasicChannel, value);
 224                         } else if (miIoBasicChannel.isMiOt()) {
 225                             value = miotTransform(miIoBasicChannel, value);
 226                         }
 227                     }
 228                     if (paramType != CommandParameterType.NONE && paramType != CommandParameterType.ONOFFPARA
 229                             && value != null) {
 230                         if (parameters.size() > 0) {
 231                             parameters.set(valuePos, value);
 232                         } else {
 233                             parameters.add(value);
 234                         }
 235                     }
 236                     if (action.isMiOtAction() && parameters.size() > 0 && parameters.get(0).isJsonObject()) {
 237                         // hack as unlike any other commands miot actions parameters appear to be send as a json object
 238                         // instead of a json array
 239                         cmd = cmd + parameters.get(0).getAsJsonObject().toString();
 240                     } else {
 241                         cmd = cmd + parameters.toString();
 242                     }
 243                     if (value != null) {
 244                         logger.debug("Sending command {}", cmd);
 245                         sendCommand(cmd);
 246                     } else {
 247                         if (miIoDeviceActionCondition != null) {
 248                             logger.debug("Conditional command {} not send, condition '{}' not met", cmd,
 249                                     miIoDeviceActionCondition.getName());
 250                         } else {
 251                             logger.debug("Command not send. Value null");
 252                         }
 253                     }
 254                 }
 255             } else {
 256                 logger.debug("Channel Id {} not in mapping.", channelUID.getId());
 257                 if (logger.isTraceEnabled()) {
 258                     for (Entry<ChannelUID, MiIoBasicChannel> a : actions.entrySet()) {
 259                         logger.trace("Available entries: {} : {}", a.getKey(), a.getValue().getFriendlyName());
 260                     }
 261                 }
 262             }
 263             updateDataCache.invalidateValue();
 264             miIoScheduler.schedule(() -> {
 265                 updateData();
 266             }, 3000, TimeUnit.MILLISECONDS);
 267         } else {
 268             logger.debug("Actions not loaded yet, or none available");
 269         }
 270     }
 271
 272     private @Nullable JsonElement miotTransform(MiIoBasicChannel miIoBasicChannel, @Nullable JsonElement value) {
 273         JsonObject json = new JsonObject();
 274         json.addProperty("did", miIoBasicChannel.getChannel());
 275         json.addProperty("siid", miIoBasicChannel.getSiid());
 276         json.addProperty("piid", miIoBasicChannel.getPiid());
 277         json.add("value", value);
 278         return json;
 279     }
 280
 281     private @Nullable JsonElement miotActionTransform(MiIoDeviceAction action, MiIoBasicChannel miIoBasicChannel,
 282             @Nullable JsonElement value) {
 283         JsonObject json = new JsonObject();
 284         json.addProperty("did", miIoBasicChannel.getChannel());
 285         json.addProperty("siid", action.getSiid());
 286         json.addProperty("aiid", action.getAiid());
 287         if (value != null) {
 288             json.add("in", value);
 289         }
 290         return json;
 291     }
 292
 293     @Override
 294     protected synchronized void updateData() {
 295         logger.debug("Periodic update for '{}' ({})", getThing().getUID().toString(), getThing().getThingTypeUID());
 296         final MiIoAsyncCommunication miioCom = getConnection();
 297         try {
 298             if (!hasConnection() || skipUpdate() || miioCom == null) {
 299                 return;
 300             }
 301             checkChannelStructure();
 302             if (!isIdentified) {
 303                 sendCommand(MiIoCommand.MIIO_INFO);
 304             }
 305             final MiIoBasicDevice midevice = miioDevice;
 306             if (midevice != null) {
 307                 refreshProperties(midevice);
 308                 refreshCustomProperties(midevice);
 309                 refreshNetwork();
 310             }
 311         } catch (Exception e) {
 312             logger.debug("Error while updating '{}': ", getThing().getUID().toString(), e);
 313         }
 314     }
 315
 316     private void refreshCustomProperties(MiIoBasicDevice midevice) {
 317         for (MiIoBasicChannel miChannel : refreshListCustomCommands.values()) {
 318             sendCommand(miChannel.getChannelCustomRefreshCommand());
 319         }
 320     }
 321
 322     private boolean refreshProperties(MiIoBasicDevice device) {
 323         MiIoCommand command = MiIoCommand.getCommand(device.getDevice().getPropertyMethod());
 324         int maxProperties = device.getDevice().getMaxProperties();
 325         JsonArray getPropString = new JsonArray();
 326         for (MiIoBasicChannel miChannel : refreshList) {
 327             if (!isLinked(miChannel.getChannel())) {
 328                 logger.debug("Skip refresh of channel {} for {} as it is not linked", miChannel.getChannel(),
 329                         getThing().getUID());
 330                 continue;
 331             }
 332             JsonElement property;
 333             if (miChannel.isMiOt()) {
 334                 JsonObject json = new JsonObject();
 335                 json.addProperty("did", miChannel.getProperty());
 336                 json.addProperty("siid", miChannel.getSiid());
 337                 json.addProperty("piid", miChannel.getPiid());
 338                 property = json;
 339             } else {
 340                 property = new JsonPrimitive(miChannel.getProperty());
 341             }
 342             getPropString.add(property);
 343             if (getPropString.size() >= maxProperties) {
 344                 sendRefreshProperties(command, getPropString);
 345                 getPropString = new JsonArray();
 346             }
 347         }
 348         if (getPropString.size() > 0) {
 349             sendRefreshProperties(command, getPropString);
 350         }
 351         return true;
 352     }
 353
 354     private void sendRefreshProperties(MiIoCommand command, JsonArray getPropString) {
 355         sendCommand(command, getPropString.toString());
 356     }
 357
 358     /**
 359      * Checks if the channel structure has been build already based on the model data. If not build it.
 360      */
 361     private void checkChannelStructure() {
 362         final MiIoBindingConfiguration configuration = this.configuration;
 363         if (configuration == null) {
 364             return;
 365         }
 366         if (!hasChannelStructure) {
 367             if (configuration.model == null || configuration.model.isEmpty()) {
 368                 logger.debug("Model needs to be determined");
 369                 isIdentified = false;
 370             } else {
 371                 hasChannelStructure = buildChannelStructure(configuration.model);
 372             }
 373         }
 374         if (hasChannelStructure) {
 375             refreshList = new ArrayList<>();
 376             final MiIoBasicDevice miioDevice = this.miioDevice;
 377             if (miioDevice != null) {
 378                 for (MiIoBasicChannel miChannel : miioDevice.getDevice().getChannels()) {
 379                     if (miChannel.getRefresh()) {
 380                         if (miChannel.getChannelCustomRefreshCommand().isBlank()) {
 381                             refreshList.add(miChannel);
 382                         } else {
 383                             String i = miChannel.getChannelCustomRefreshCommand().split("\\[")[0];
 384                             refreshListCustomCommands.put(i.trim(), miChannel);
 385                         }
 386                     }
 387                 }
 388             }
 389
 390         }
 391     }
 392
 393     private boolean buildChannelStructure(String deviceName) {
 394         logger.debug("Building Channel Structure for {} - Model: {}", getThing().getUID().toString(), deviceName);
 395         URL fn = miIoDatabaseWatchService.getDatabaseUrl(deviceName);
 396         if (fn == null) {
 397             logger.warn("Database entry for model '{}' cannot be found.", deviceName);
 398             return false;
 399         }
 400         try {
 401             JsonObject deviceMapping = Utils.convertFileToJSON(fn);
 402             logger.debug("Using device database: {} for device {}", fn.getFile(), deviceName);
 403             Gson gson = new GsonBuilder().serializeNulls().create();
 404             miioDevice = gson.fromJson(deviceMapping, MiIoBasicDevice.class);
 405             for (Channel ch : getThing().getChannels()) {
 406                 logger.debug("Current thing channels {}, type: {}", ch.getUID(), ch.getChannelTypeUID());
 407             }
 408             ThingBuilder thingBuilder = editThing();
 409             int channelsAdded = 0;
 410
 411             // make a map of the actions
 412             actions = new HashMap<>();
 413             final MiIoBasicDevice device = this.miioDevice;
 414             if (device != null) {
 415                 for (Channel cn : getThing().getChannels()) {
 416                     logger.trace("Channel '{}' for thing {} already exist... removing", cn.getUID(),
 417                             getThing().getUID());
 418                     if (!PERSISTENT_CHANNELS.contains(cn.getUID().getId().toString())) {
 419                         thingBuilder.withoutChannels(cn);
 420                     }
 421                 }
 422                 for (MiIoBasicChannel miChannel : device.getDevice().getChannels()) {
 423                     logger.debug("properties {}", miChannel);
 424                     if (!miChannel.getType().isEmpty()) {
 425                         basicChannelTypeProvider.addChannelType(miChannel, deviceName);
 426                         ChannelUID channelUID = addChannel(thingBuilder, miChannel, deviceName);
 427                         if (channelUID != null) {
 428                             actions.put(channelUID, miChannel);
 429                             channelsAdded++;
 430                         } else {
 431                             logger.debug("Channel for {} ({}) not loaded", miChannel.getChannel(),
 432                                     miChannel.getFriendlyName());
 433                         }
 434                     } else {
 435                         logger.debug("Channel {} ({}), not loaded, missing type", miChannel.getChannel(),
 436                                 miChannel.getFriendlyName());
 437                     }
 438                 }
 439             }
 440             // only update if channels were added/removed
 441             if (channelsAdded > 0) {
 442                 logger.debug("Current thing channels added: {}", channelsAdded);
 443                 updateThing(thingBuilder.build());
 444             }
 445             return true;
 446         } catch (JsonIOException | JsonSyntaxException e) {
 447             logger.warn("Error parsing database Json", e);
 448         } catch (IOException e) {
 449             logger.warn("Error reading database file", e);
 450         } catch (Exception e) {
 451             logger.warn("Error creating channel structure", e);
 452         }
 453         return false;
 454     }
 455
 456     private @Nullable ChannelUID addChannel(ThingBuilder thingBuilder, MiIoBasicChannel miChannel, String model) {
 457         String channel = miChannel.getChannel();
 458         String dataType = miChannel.getType();
 459         if (channel.isEmpty() || dataType.isEmpty()) {
 460             logger.info("Channel '{}', UID '{}' cannot be added incorrectly configured database. ", channel,
 461                     getThing().getUID());
 462             return null;
 463         }
 464         ChannelUID channelUID = new ChannelUID(getThing().getUID(), channel);
 465         ChannelBuilder newChannel = ChannelBuilder.create(channelUID, dataType).withLabel(miChannel.getFriendlyName());
 466         boolean useGeneratedChannelType = false;
 467         if (!miChannel.getChannelType().isBlank()) {
 468             ChannelTypeUID channelTypeUID = new ChannelTypeUID(miChannel.getChannelType());
 469             if (channelTypeRegistry.getChannelType(channelTypeUID) != null) {
 470                 newChannel = newChannel.withType(channelTypeUID);
 471                 final LinkedHashSet<String> tags = miChannel.getTags();
 472                 if (tags != null && tags.size() > 0) {
 473                     newChannel.withDefaultTags(tags);
 474                 }
 475             } else {
 476                 logger.debug("ChannelType '{}' is not available. Check the Json file for {}", channelTypeUID, model);
 477                 useGeneratedChannelType = true;
 478             }
 479         } else {
 480             useGeneratedChannelType = true;
 481         }
 482         if (useGeneratedChannelType) {
 483             newChannel = newChannel
 484                     .withType(new ChannelTypeUID(BINDING_ID, model.toUpperCase().replace(".", "_") + "_" + channel));
 485             final LinkedHashSet<String> tags = miChannel.getTags();
 486             if (tags != null && tags.size() > 0) {
 487                 newChannel.withDefaultTags(tags);
 488             }
 489         }
 490         thingBuilder.withChannel(newChannel.build());
 491         return channelUID;
 492     }
 493
 494     private @Nullable MiIoBasicChannel getChannel(String parameter) {
 495         for (MiIoBasicChannel refreshEntry : refreshList) {
 496             if (refreshEntry.getProperty().equals(parameter)) {
 497                 return refreshEntry;
 498             }
 499         }
 500         logger.trace("Did not find channel for {} in {}", parameter, refreshList);
 501         return null;
 502     }
 503
 504     private void updatePropsFromJsonArray(MiIoSendCommand response) {
 505         JsonArray res = response.getResult().getAsJsonArray();
 506         JsonArray para = parser.parse(response.getCommandString()).getAsJsonObject().get("params").getAsJsonArray();
 507         if (res.size() != para.size()) {
 508             logger.debug("Unexpected size different. Request size {},  response size {}. (Req: {}, Resp:{})",
 509                     para.size(), res.size(), para, res);
 510             return;
 511         }
 512         for (int i = 0; i < para.size(); i++) {
 513             // This is a miot parameter
 514             String param;
 515             final JsonElement paraElement = para.get(i);
 516             if (paraElement.isJsonObject()) { // miot channel
 517                 param = paraElement.getAsJsonObject().get("did").getAsString();
 518             } else {
 519                 param = paraElement.getAsString();
 520             }
 521             JsonElement val = res.get(i);
 522             if (val.isJsonNull()) {
 523                 logger.debug("Property '{}' returned null (is it supported?).", param);
 524                 continue;
 525             } else if (val.isJsonObject()) { // miot channel
 526                 val = val.getAsJsonObject().get("value");
 527             }
 528             MiIoBasicChannel basicChannel = getChannel(param);
 529             updateChannel(basicChannel, param, val);
 530         }
 531     }
 532
 533     private void updatePropsFromJsonObject(MiIoSendCommand response) {
 534         JsonObject res = response.getResult().getAsJsonObject();
 535         for (Object k : res.keySet()) {
 536             String param = (String) k;
 537             JsonElement val = res.get(param);
 538             if (val.isJsonNull()) {
 539                 logger.debug("Property '{}' returned null (is it supported?).", param);
 540                 continue;
 541             }
 542             MiIoBasicChannel basicChannel = getChannel(param);
 543             updateChannel(basicChannel, param, val);
 544         }
 545     }
 546
 547     private void updateChannel(@Nullable MiIoBasicChannel basicChannel, String param, JsonElement value) {
 548         JsonElement val = value;
 549         if (basicChannel == null) {
 550             logger.debug("Channel not found for {}", param);
 551             return;
 552         }
 553         final String transformation = basicChannel.getTransfortmation();
 554         if (transformation != null) {
 555             JsonElement transformed = Conversions.execute(transformation, val);
 556             logger.debug("Transformed with '{}': {} {} -> {} ", transformation, basicChannel.getFriendlyName(), val,
 557                     transformed);
 558             val = transformed;
 559         }
 560         try {
 561             String[] chType = basicChannel.getType().toLowerCase().split(":");
 562             switch (chType[0]) {
 563                 case "number":
 564                     quantityTypeUpdate(basicChannel, val, chType.length > 1 ? chType[1] : "");
 565                     break;
 566                 case "dimmer":
 567                     updateState(basicChannel.getChannel(), new PercentType(val.getAsBigDecimal()));
 568                     break;
 569                 case "string":
 570                     updateState(basicChannel.getChannel(), new StringType(val.getAsString()));
 571                     break;
 572                 case "switch":
 573                     updateState(basicChannel.getChannel(), val.getAsString().toLowerCase().equals("on")
 574                             || val.getAsString().toLowerCase().equals("true") ? OnOffType.ON : OnOffType.OFF);
 575                     break;
 576                 case "color":
 577                     Color rgb = new Color(val.getAsInt());
 578                     HSBType hsb = HSBType.fromRGB(rgb.getRed(), rgb.getGreen(), rgb.getBlue());
 579                     updateState(basicChannel.getChannel(), hsb);
 580                     break;
 581                 default:
 582                     logger.debug("No update logic for channeltype '{}' ", basicChannel.getType());
 583             }
 584         } catch (Exception e) {
 585             logger.debug("Error updating {} property {} with '{}' : {}: {}", getThing().getUID(),
 586                     basicChannel.getChannel(), val, e.getClass().getCanonicalName(), e.getMessage());
 587             logger.trace("Property update error detail:", e);
 588         }
 589     }
 590
 591     private void quantityTypeUpdate(MiIoBasicChannel basicChannel, JsonElement val, String type) {
 592         if (!basicChannel.getUnit().isBlank()) {
 593             Unit<?> unit = MiIoQuantiyTypes.get(basicChannel.getUnit());
 594             if (unit != null) {
 595                 logger.debug("'{}' channel '{}' has unit '{}' with symbol '{}'.", getThing().getUID(),
 596                         basicChannel.getChannel(), basicChannel.getUnit(), unit);
 597                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), unit));
 598                 return;
 599             } else {
 600                 logger.debug("Unit '{}' used by '{}' channel '{}' is not found.. using default unit.",
 601                         getThing().getUID(), basicChannel.getUnit(), basicChannel.getChannel());
 602             }
 603         }
 604         // if no unit is provided or unit not found use default units, these units have so far been seen for miio
 605         // devices
 606         switch (type.toLowerCase()) {
 607             case "temperature":
 608                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), SIUnits.CELSIUS));
 609                 break;
 610             case "electriccurrent":
 611                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), Units.AMPERE));
 612                 break;
 613             case "energy":
 614                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), Units.WATT));
 615                 break;
 616             case "time":
 617                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), Units.HOUR));
 618                 break;
 619             default:
 620                 updateState(basicChannel.getChannel(), new DecimalType(val.getAsBigDecimal()));
 621         }
 622     }
 623
 624     @Override
 625     public void onMessageReceived(MiIoSendCommand response) {
 626         super.onMessageReceived(response);
 627         if (response.isError()) {
 628             return;
 629         }
 630         try {
 631             switch (response.getCommand()) {
 632                 case MIIO_INFO:
 633                     break;
 634                 case GET_VALUE:
 635                 case GET_PROPERTIES:
 636                 case GET_PROPERTY:
 637                     if (response.getResult().isJsonArray()) {
 638                         updatePropsFromJsonArray(response);
 639                     } else if (response.getResult().isJsonObject()) {
 640                         updatePropsFromJsonObject(response);
 641                     }
 642                     break;
 643                 default:
 644                     if (refreshListCustomCommands.containsKey(response.getMethod())) {
 645                         logger.debug("Processing custom refresh command response for !{}", response.getMethod());
 646                         final MiIoBasicChannel ch = refreshListCustomCommands.get(response.getMethod());
 647                         if (ch != null) {
 648                             if (response.getResult().isJsonArray()) {
 649                                 JsonArray cmdResponse = response.getResult().getAsJsonArray();
 650                                 final String transformation = ch.getTransfortmation();
 651                                 if (transformation == null || transformation.isBlank()) {
 652                                     JsonElement response0 = cmdResponse.get(0);
 653                                     updateChannel(ch, ch.getChannel(), response0.isJsonPrimitive() ? response0
 654                                             : new JsonPrimitive(response0.toString()));
 655                                 } else {
 656                                     updateChannel(ch, ch.getChannel(), cmdResponse);
 657                                 }
 658                             } else {
 659                                 updateChannel(ch, ch.getChannel(), new JsonPrimitive(response.getResult().toString()));
 660                             }
 661                         }
 662                     }
 663                     break;
 664             }
 665         } catch (Exception e) {
 666             logger.debug("Error while handing message {}", response.getResponse(), e);
 667         }
 668     }
 669 }