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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.JsonParser;
  77 import com.google.gson.JsonPrimitive;
  78 import com.google.gson.JsonSyntaxException;
  79
  80 /**
  81  * The {@link MiIoBasicHandler} is responsible for handling commands, which are
  82  * sent to one of the channels.
  83  *
  84  * @author Marcel Verpaalen - Initial contribution
  85  */
  86 @NonNullByDefault
  87 public class MiIoBasicHandler extends MiIoAbstractHandler {
  88     private final Logger logger = LoggerFactory.getLogger(MiIoBasicHandler.class);
  89     private boolean hasChannelStructure;
  90
  91     private final ExpiringCache<Boolean> updateDataCache = new ExpiringCache<>(CACHE_EXPIRY, () -> {
  92         miIoScheduler.schedule(this::updateData, 0, TimeUnit.SECONDS);
  93         return true;
  94     });
  95
  96     List<MiIoBasicChannel> refreshList = new ArrayList<>();
  97     private Map<String, MiIoBasicChannel> refreshListCustomCommands = new HashMap<>();
  98
  99     private @Nullable MiIoBasicDevice miioDevice;
 100     private Map<ChannelUID, MiIoBasicChannel> actions = new HashMap<>();
 101     private ChannelTypeRegistry channelTypeRegistry;
 102     private BasicChannelTypeProvider basicChannelTypeProvider;
 103
 104     public MiIoBasicHandler(Thing thing, MiIoDatabaseWatchService miIoDatabaseWatchService,
 105             CloudConnector cloudConnector, ChannelTypeRegistry channelTypeRegistry,
 106             BasicChannelTypeProvider basicChannelTypeProvider) {
 107         super(thing, miIoDatabaseWatchService, cloudConnector);
 108         this.channelTypeRegistry = channelTypeRegistry;
 109         this.basicChannelTypeProvider = basicChannelTypeProvider;
 110     }
 111
 112     @Override
 113     public void initialize() {
 114         super.initialize();
 115         hasChannelStructure = false;
 116         isIdentified = false;
 117         refreshList = new ArrayList<>();
 118         refreshListCustomCommands = new HashMap<>();
 119     }
 120
 121     @Override
 122     public void handleCommand(ChannelUID channelUID, Command receivedCommand) {
 123         Command command = receivedCommand;
 124         if (command == RefreshType.REFRESH) {
 125             if (updateDataCache.isExpired()) {
 126                 logger.debug("Refreshing {}", channelUID);
 127                 updateDataCache.getValue();
 128             } else {
 129                 logger.debug("Refresh {} skipped. Already refreshing", channelUID);
 130             }
 131             return;
 132         }
 133         if (channelUID.getId().equals(CHANNEL_COMMAND)) {
 134             cmds.put(sendCommand(command.toString()), command.toString());
 135             return;
 136         }
 137         logger.debug("Locating action for {} channel '{}': '{}'", getThing().getUID(), channelUID.getId(), command);
 138         if (!actions.isEmpty()) {
 139             final MiIoBasicChannel miIoBasicChannel = actions.get(channelUID);
 140             if (miIoBasicChannel != null) {
 141                 int valuePos = 0;
 142                 for (MiIoDeviceAction action : miIoBasicChannel.getActions()) {
 143                     @Nullable
 144                     JsonElement value = null;
 145                     JsonArray parameters = action.getParameters().deepCopy();
 146                     for (int i = 0; i < action.getParameters().size(); i++) {
 147                         JsonElement p = action.getParameters().get(i);
 148                         if (p.isJsonPrimitive() && p.getAsString().toLowerCase().contains("$value$")) {
 149                             valuePos = i;
 150                             break;
 151                         }
 152                     }
 153                     String cmd = action.getCommand();
 154                     CommandParameterType paramType = action.getparameterType();
 155                     if (command instanceof QuantityType) {
 156                         QuantityType<?> qtc = null;
 157                         try {
 158                             if (!miIoBasicChannel.getUnit().isBlank()) {
 159                                 Unit<?> unit = MiIoQuantiyTypes.get(miIoBasicChannel.getUnit());
 160                                 if (unit != null) {
 161                                     qtc = ((QuantityType<?>) command).toUnit(unit);
 162                                 }
 163                             }
 164                         } catch (ParserException e) {
 165                             // swallow
 166                         }
 167                         if (qtc != null) {
 168                             command = new DecimalType(qtc.toBigDecimal());
 169                         } else {
 170                             logger.debug("Could not convert QuantityType to '{}'", miIoBasicChannel.getUnit());
 171                             command = new DecimalType(((QuantityType<?>) command).toBigDecimal());
 172                         }
 173                     }
 174                     if (paramType == CommandParameterType.COLOR) {
 175                         if (command instanceof HSBType) {
 176                             HSBType hsb = (HSBType) command;
 177                             Color color = Color.getHSBColor(hsb.getHue().floatValue() / 360,
 178                                     hsb.getSaturation().floatValue() / 100, hsb.getBrightness().floatValue() / 100);
 179                             value = new JsonPrimitive(
 180                                     (color.getRed() << 16) + (color.getGreen() << 8) + color.getBlue());
 181                         } else if (command instanceof DecimalType) {
 182                             // actually brightness is being set instead of a color
 183                             value = new JsonPrimitive(((DecimalType) command).toBigDecimal());
 184                         } else if (command instanceof OnOffType) {
 185                             value = new JsonPrimitive(command == OnOffType.ON ? 100 : 0);
 186                         } else {
 187                             logger.debug("Unsupported command for COLOR: {}", command);
 188                         }
 189                     } else if (command instanceof OnOffType) {
 190                         if (paramType == CommandParameterType.ONOFF) {
 191                             value = new JsonPrimitive(command == OnOffType.ON ? "on" : "off");
 192                         } else if (paramType == CommandParameterType.ONOFFPARA) {
 193                             cmd = cmd.replace("*", command == OnOffType.ON ? "on" : "off");
 194                             value = new JsonArray();
 195                         } else if (paramType == CommandParameterType.ONOFFBOOL) {
 196                             boolean boolCommand = command == OnOffType.ON;
 197                             value = new JsonPrimitive(boolCommand);
 198                         } else if (paramType == CommandParameterType.ONOFFBOOLSTRING) {
 199                             value = new JsonPrimitive(command == OnOffType.ON ? "true" : "false");
 200                         } else if (paramType == CommandParameterType.ONOFFNUMBER) {
 201                             value = new JsonPrimitive(command == OnOffType.ON ? 1 : 0);
 202                         }
 203                     } else if (command instanceof DecimalType) {
 204                         value = new JsonPrimitive(((DecimalType) command).toBigDecimal());
 205                     } else if (command instanceof StringType) {
 206                         if (paramType == CommandParameterType.STRING) {
 207                             value = new JsonPrimitive(command.toString().toLowerCase());
 208                         } else if (paramType == CommandParameterType.CUSTOMSTRING) {
 209                             value = new JsonPrimitive(parameters.get(valuePos).getAsString().replace("$value",
 210                                     command.toString().toLowerCase()));
 211                         }
 212                     } else {
 213                         value = new JsonPrimitive(command.toString().toLowerCase());
 214                     }
 215                     if (paramType == CommandParameterType.EMPTY) {
 216                         value = new JsonArray();
 217                     }
 218                     final MiIoDeviceActionCondition miIoDeviceActionCondition = action.getCondition();
 219                     if (miIoDeviceActionCondition != null) {
 220                         value = ActionConditions.executeAction(miIoDeviceActionCondition, deviceVariables, value,
 221                                 command);
 222                     }
 223                     // Check for miot channel
 224                     if (value != null) {
 225                         if (action.isMiOtAction()) {
 226                             value = miotActionTransform(action, miIoBasicChannel, value);
 227                         } else if (miIoBasicChannel.isMiOt()) {
 228                             value = miotTransform(miIoBasicChannel, value);
 229                         }
 230                     }
 231                     if (paramType != CommandParameterType.NONE && paramType != CommandParameterType.ONOFFPARA
 232                             && value != null) {
 233                         if (parameters.size() > 0) {
 234                             parameters.set(valuePos, value);
 235                         } else {
 236                             parameters.add(value);
 237                         }
 238                     }
 239                     if (action.isMiOtAction() && parameters.size() > 0 && parameters.get(0).isJsonObject()) {
 240                         // hack as unlike any other commands miot actions parameters appear to be send as a json object
 241                         // instead of a json array
 242                         cmd = cmd + parameters.get(0).getAsJsonObject().toString();
 243                     } else {
 244                         cmd = cmd + parameters.toString();
 245                     }
 246                     if (value != null) {
 247                         logger.debug("Sending command {}", cmd);
 248                         sendCommand(cmd);
 249                     } else {
 250                         if (miIoDeviceActionCondition != null) {
 251                             logger.debug("Conditional command {} not send, condition '{}' not met", cmd,
 252                                     miIoDeviceActionCondition.getName());
 253                         } else {
 254                             logger.debug("Command not send. Value null");
 255                         }
 256                     }
 257                 }
 258             } else {
 259                 logger.debug("Channel Id {} not in mapping.", channelUID.getId());
 260                 if (logger.isTraceEnabled()) {
 261                     for (Entry<ChannelUID, MiIoBasicChannel> a : actions.entrySet()) {
 262                         logger.trace("Available entries: {} : {}", a.getKey(), a.getValue().getFriendlyName());
 263                     }
 264                 }
 265             }
 266             updateDataCache.invalidateValue();
 267             miIoScheduler.schedule(() -> {
 268                 updateData();
 269             }, 3000, TimeUnit.MILLISECONDS);
 270         } else {
 271             logger.debug("Actions not loaded yet, or none available");
 272         }
 273     }
 274
 275     private @Nullable JsonElement miotTransform(MiIoBasicChannel miIoBasicChannel, @Nullable JsonElement value) {
 276         JsonObject json = new JsonObject();
 277         json.addProperty("did", miIoBasicChannel.getChannel());
 278         json.addProperty("siid", miIoBasicChannel.getSiid());
 279         json.addProperty("piid", miIoBasicChannel.getPiid());
 280         json.add("value", value);
 281         return json;
 282     }
 283
 284     private @Nullable JsonElement miotActionTransform(MiIoDeviceAction action, MiIoBasicChannel miIoBasicChannel,
 285             @Nullable JsonElement value) {
 286         JsonObject json = new JsonObject();
 287         json.addProperty("did", miIoBasicChannel.getChannel());
 288         json.addProperty("siid", action.getSiid());
 289         json.addProperty("aiid", action.getAiid());
 290         if (value != null) {
 291             json.add("in", value);
 292         }
 293         return json;
 294     }
 295
 296     @Override
 297     protected synchronized void updateData() {
 298         logger.debug("Periodic update for '{}' ({})", getThing().getUID().toString(), getThing().getThingTypeUID());
 299         final MiIoAsyncCommunication miioCom = getConnection();
 300         try {
 301             if (!hasConnection() || skipUpdate() || miioCom == null) {
 302                 return;
 303             }
 304             checkChannelStructure();
 305             if (!isIdentified) {
 306                 sendCommand(MiIoCommand.MIIO_INFO);
 307             }
 308             final MiIoBasicDevice midevice = miioDevice;
 309             if (midevice != null) {
 310                 refreshProperties(midevice);
 311                 refreshCustomProperties(midevice);
 312                 refreshNetwork();
 313             }
 314         } catch (Exception e) {
 315             logger.debug("Error while updating '{}': ", getThing().getUID().toString(), e);
 316         }
 317     }
 318
 319     private void refreshCustomProperties(MiIoBasicDevice midevice) {
 320         for (MiIoBasicChannel miChannel : refreshListCustomCommands.values()) {
 321             sendCommand(miChannel.getChannelCustomRefreshCommand());
 322         }
 323     }
 324
 325     private boolean refreshProperties(MiIoBasicDevice device) {
 326         MiIoCommand command = MiIoCommand.getCommand(device.getDevice().getPropertyMethod());
 327         int maxProperties = device.getDevice().getMaxProperties();
 328         JsonArray getPropString = new JsonArray();
 329         for (MiIoBasicChannel miChannel : refreshList) {
 330             if (!isLinked(miChannel.getChannel())) {
 331                 logger.debug("Skip refresh of channel {} for {} as it is not linked", miChannel.getChannel(),
 332                         getThing().getUID());
 333                 continue;
 334             }
 335             JsonElement property;
 336             if (miChannel.isMiOt()) {
 337                 JsonObject json = new JsonObject();
 338                 json.addProperty("did", miChannel.getProperty());
 339                 json.addProperty("siid", miChannel.getSiid());
 340                 json.addProperty("piid", miChannel.getPiid());
 341                 property = json;
 342             } else {
 343                 property = new JsonPrimitive(miChannel.getProperty());
 344             }
 345             getPropString.add(property);
 346             if (getPropString.size() >= maxProperties) {
 347                 sendRefreshProperties(command, getPropString);
 348                 getPropString = new JsonArray();
 349             }
 350         }
 351         if (getPropString.size() > 0) {
 352             sendRefreshProperties(command, getPropString);
 353         }
 354         return true;
 355     }
 356
 357     private void sendRefreshProperties(MiIoCommand command, JsonArray getPropString) {
 358         sendCommand(command, getPropString.toString());
 359     }
 360
 361     /**
 362      * Checks if the channel structure has been build already based on the model data. If not build it.
 363      */
 364     private void checkChannelStructure() {
 365         final MiIoBindingConfiguration configuration = this.configuration;
 366         if (configuration == null) {
 367             return;
 368         }
 369         if (!hasChannelStructure) {
 370             if (configuration.model == null || configuration.model.isEmpty()) {
 371                 logger.debug("Model needs to be determined");
 372                 isIdentified = false;
 373             } else {
 374                 hasChannelStructure = buildChannelStructure(configuration.model);
 375             }
 376         }
 377         if (hasChannelStructure) {
 378             refreshList = new ArrayList<>();
 379             final MiIoBasicDevice miioDevice = this.miioDevice;
 380             if (miioDevice != null) {
 381                 for (MiIoBasicChannel miChannel : miioDevice.getDevice().getChannels()) {
 382                     if (miChannel.getRefresh()) {
 383                         if (miChannel.getChannelCustomRefreshCommand().isBlank()) {
 384                             refreshList.add(miChannel);
 385                         } else {
 386                             String i = miChannel.getChannelCustomRefreshCommand().split("\\[")[0];
 387                             refreshListCustomCommands.put(i.trim(), miChannel);
 388                         }
 389                     }
 390                 }
 391             }
 392
 393         }
 394     }
 395
 396     private boolean buildChannelStructure(String deviceName) {
 397         logger.debug("Building Channel Structure for {} - Model: {}", getThing().getUID().toString(), deviceName);
 398         URL fn = miIoDatabaseWatchService.getDatabaseUrl(deviceName);
 399         if (fn == null) {
 400             logger.warn("Database entry for model '{}' cannot be found.", deviceName);
 401             return false;
 402         }
 403         try {
 404             JsonObject deviceMapping = Utils.convertFileToJSON(fn);
 405             logger.debug("Using device database: {} for device {}", fn.getFile(), deviceName);
 406             Gson gson = new GsonBuilder().serializeNulls().create();
 407             miioDevice = gson.fromJson(deviceMapping, MiIoBasicDevice.class);
 408             for (Channel ch : getThing().getChannels()) {
 409                 logger.debug("Current thing channels {}, type: {}", ch.getUID(), ch.getChannelTypeUID());
 410             }
 411             ThingBuilder thingBuilder = editThing();
 412             int channelsAdded = 0;
 413
 414             // make a map of the actions
 415             actions = new HashMap<>();
 416             final MiIoBasicDevice device = this.miioDevice;
 417             if (device != null) {
 418                 for (Channel cn : getThing().getChannels()) {
 419                     logger.trace("Channel '{}' for thing {} already exist... removing", cn.getUID(),
 420                             getThing().getUID());
 421                     if (!PERSISTENT_CHANNELS.contains(cn.getUID().getId().toString())) {
 422                         thingBuilder.withoutChannels(cn);
 423                     }
 424                 }
 425                 for (MiIoBasicChannel miChannel : device.getDevice().getChannels()) {
 426                     logger.debug("properties {}", miChannel);
 427                     if (!miChannel.getType().isEmpty()) {
 428                         basicChannelTypeProvider.addChannelType(miChannel, deviceName);
 429                         ChannelUID channelUID = addChannel(thingBuilder, miChannel, deviceName);
 430                         if (channelUID != null) {
 431                             actions.put(channelUID, miChannel);
 432                             channelsAdded++;
 433                         } else {
 434                             logger.debug("Channel for {} ({}) not loaded", miChannel.getChannel(),
 435                                     miChannel.getFriendlyName());
 436                         }
 437                     } else {
 438                         logger.debug("Channel {} ({}), not loaded, missing type", miChannel.getChannel(),
 439                                 miChannel.getFriendlyName());
 440                     }
 441                 }
 442             }
 443             // only update if channels were added/removed
 444             if (channelsAdded > 0) {
 445                 logger.debug("Current thing channels added: {}", channelsAdded);
 446                 updateThing(thingBuilder.build());
 447             }
 448             return true;
 449         } catch (JsonIOException | JsonSyntaxException e) {
 450             logger.warn("Error parsing database Json", e);
 451         } catch (IOException e) {
 452             logger.warn("Error reading database file", e);
 453         } catch (Exception e) {
 454             logger.warn("Error creating channel structure", e);
 455         }
 456         return false;
 457     }
 458
 459     private @Nullable ChannelUID addChannel(ThingBuilder thingBuilder, MiIoBasicChannel miChannel, String model) {
 460         String channel = miChannel.getChannel();
 461         String dataType = miChannel.getType();
 462         if (channel.isEmpty() || dataType.isEmpty()) {
 463             logger.info("Channel '{}', UID '{}' cannot be added incorrectly configured database. ", channel,
 464                     getThing().getUID());
 465             return null;
 466         }
 467         ChannelUID channelUID = new ChannelUID(getThing().getUID(), channel);
 468         ChannelBuilder newChannel = ChannelBuilder.create(channelUID, dataType).withLabel(miChannel.getFriendlyName());
 469         boolean useGeneratedChannelType = false;
 470         if (!miChannel.getChannelType().isBlank()) {
 471             ChannelTypeUID channelTypeUID = new ChannelTypeUID(miChannel.getChannelType());
 472             if (channelTypeRegistry.getChannelType(channelTypeUID) != null) {
 473                 newChannel = newChannel.withType(channelTypeUID);
 474                 final LinkedHashSet<String> tags = miChannel.getTags();
 475                 if (tags != null && tags.size() > 0) {
 476                     newChannel.withDefaultTags(tags);
 477                 }
 478             } else {
 479                 logger.debug("ChannelType '{}' is not available. Check the Json file for {}", channelTypeUID, model);
 480                 useGeneratedChannelType = true;
 481             }
 482         } else {
 483             useGeneratedChannelType = true;
 484         }
 485         if (useGeneratedChannelType) {
 486             newChannel = newChannel
 487                     .withType(new ChannelTypeUID(BINDING_ID, model.toUpperCase().replace(".", "_") + "_" + channel));
 488             final LinkedHashSet<String> tags = miChannel.getTags();
 489             if (tags != null && tags.size() > 0) {
 490                 newChannel.withDefaultTags(tags);
 491             }
 492         }
 493         thingBuilder.withChannel(newChannel.build());
 494         return channelUID;
 495     }
 496
 497     private @Nullable MiIoBasicChannel getChannel(String parameter) {
 498         for (MiIoBasicChannel refreshEntry : refreshList) {
 499             if (refreshEntry.getProperty().equals(parameter)) {
 500                 return refreshEntry;
 501             }
 502         }
 503         logger.trace("Did not find channel for {} in {}", parameter, refreshList);
 504         return null;
 505     }
 506
 507     private void updatePropsFromJsonArray(MiIoSendCommand response) {
 508         JsonArray res = response.getResult().getAsJsonArray();
 509         JsonArray para = JsonParser.parseString(response.getCommandString()).getAsJsonObject().get("params")
 510                 .getAsJsonArray();
 511         if (res.size() != para.size()) {
 512             logger.debug("Unexpected size different. Request size {},  response size {}. (Req: {}, Resp:{})",
 513                     para.size(), res.size(), para, res);
 514             return;
 515         }
 516         for (int i = 0; i < para.size(); i++) {
 517             // This is a miot parameter
 518             String param;
 519             final JsonElement paraElement = para.get(i);
 520             if (paraElement.isJsonObject()) { // miot channel
 521                 param = paraElement.getAsJsonObject().get("did").getAsString();
 522             } else {
 523                 param = paraElement.getAsString();
 524             }
 525             JsonElement val = res.get(i);
 526             if (val.isJsonNull()) {
 527                 logger.debug("Property '{}' returned null (is it supported?).", param);
 528                 continue;
 529             } else if (val.isJsonObject()) { // miot channel
 530                 val = val.getAsJsonObject().get("value");
 531             }
 532             MiIoBasicChannel basicChannel = getChannel(param);
 533             updateChannel(basicChannel, param, val);
 534         }
 535     }
 536
 537     private void updatePropsFromJsonObject(MiIoSendCommand response) {
 538         JsonObject res = response.getResult().getAsJsonObject();
 539         for (Object k : res.keySet()) {
 540             String param = (String) k;
 541             JsonElement val = res.get(param);
 542             if (val.isJsonNull()) {
 543                 logger.debug("Property '{}' returned null (is it supported?).", param);
 544                 continue;
 545             }
 546             MiIoBasicChannel basicChannel = getChannel(param);
 547             updateChannel(basicChannel, param, val);
 548         }
 549     }
 550
 551     private void updateChannel(@Nullable MiIoBasicChannel basicChannel, String param, JsonElement value) {
 552         JsonElement val = value;
 553         if (basicChannel == null) {
 554             logger.debug("Channel not found for {}", param);
 555             return;
 556         }
 557         final String transformation = basicChannel.getTransfortmation();
 558         if (transformation != null) {
 559             JsonElement transformed = Conversions.execute(transformation, val);
 560             logger.debug("Transformed with '{}': {} {} -> {} ", transformation, basicChannel.getFriendlyName(), val,
 561                     transformed);
 562             val = transformed;
 563         }
 564         try {
 565             String[] chType = basicChannel.getType().toLowerCase().split(":");
 566             switch (chType[0]) {
 567                 case "number":
 568                     quantityTypeUpdate(basicChannel, val, chType.length > 1 ? chType[1] : "");
 569                     break;
 570                 case "dimmer":
 571                     updateState(basicChannel.getChannel(), new PercentType(val.getAsBigDecimal()));
 572                     break;
 573                 case "string":
 574                     updateState(basicChannel.getChannel(), new StringType(val.getAsString()));
 575                     break;
 576                 case "switch":
 577                     if (val.getAsJsonPrimitive().isNumber()) {
 578                         updateState(basicChannel.getChannel(), val.getAsInt() > 0 ? OnOffType.ON : OnOffType.OFF);
 579                     } else {
 580                         String strVal = val.getAsString().toLowerCase();
 581                         updateState(basicChannel.getChannel(),
 582                                 strVal.equals("on") || strVal.equals("true") ? OnOffType.ON : OnOffType.OFF);
 583                     }
 584                     break;
 585                 case "color":
 586                     Color rgb = new Color(val.getAsInt());
 587                     HSBType hsb = HSBType.fromRGB(rgb.getRed(), rgb.getGreen(), rgb.getBlue());
 588                     updateState(basicChannel.getChannel(), hsb);
 589                     break;
 590                 default:
 591                     logger.debug("No update logic for channeltype '{}' ", basicChannel.getType());
 592             }
 593         } catch (Exception e) {
 594             logger.debug("Error updating {} property {} with '{}' : {}: {}", getThing().getUID(),
 595                     basicChannel.getChannel(), val, e.getClass().getCanonicalName(), e.getMessage());
 596             logger.trace("Property update error detail:", e);
 597         }
 598     }
 599
 600     private void quantityTypeUpdate(MiIoBasicChannel basicChannel, JsonElement val, String type) {
 601         if (!basicChannel.getUnit().isBlank()) {
 602             Unit<?> unit = MiIoQuantiyTypes.get(basicChannel.getUnit());
 603             if (unit != null) {
 604                 logger.debug("'{}' channel '{}' has unit '{}' with symbol '{}'.", getThing().getUID(),
 605                         basicChannel.getChannel(), basicChannel.getUnit(), unit);
 606                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), unit));
 607             } else {
 608                 logger.debug(
 609                         "Unit '{}' used by '{}' channel '{}' is not found in conversion table... Trying anyway to submit as the update.",
 610                         basicChannel.getUnit(), getThing().getUID(), basicChannel.getChannel());
 611                 updateState(basicChannel.getChannel(),
 612                         new QuantityType<>(val.getAsBigDecimal().toPlainString() + " " + basicChannel.getUnit()));
 613             }
 614             return;
 615         }
 616         // if no unit is provided or unit not found use default units, these units have so far been seen for miio
 617         // devices
 618         switch (type.toLowerCase()) {
 619             case "temperature":
 620                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), SIUnits.CELSIUS));
 621                 break;
 622             case "electriccurrent":
 623                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), Units.AMPERE));
 624                 break;
 625             case "energy":
 626                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), Units.WATT));
 627                 break;
 628             case "time":
 629                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), Units.HOUR));
 630                 break;
 631             default:
 632                 updateState(basicChannel.getChannel(), new DecimalType(val.getAsBigDecimal()));
 633         }
 634     }
 635
 636     @Override
 637     public void onMessageReceived(MiIoSendCommand response) {
 638         super.onMessageReceived(response);
 639         if (response.isError()) {
 640             return;
 641         }
 642         try {
 643             switch (response.getCommand()) {
 644                 case MIIO_INFO:
 645                     break;
 646                 case GET_VALUE:
 647                 case GET_PROPERTIES:
 648                 case GET_PROPERTY:
 649                     if (response.getResult().isJsonArray()) {
 650                         updatePropsFromJsonArray(response);
 651                     } else if (response.getResult().isJsonObject()) {
 652                         updatePropsFromJsonObject(response);
 653                     }
 654                     break;
 655                 default:
 656                     if (refreshListCustomCommands.containsKey(response.getMethod())) {
 657                         logger.debug("Processing custom refresh command response for !{}", response.getMethod());
 658                         final MiIoBasicChannel ch = refreshListCustomCommands.get(response.getMethod());
 659                         if (ch != null) {
 660                             if (response.getResult().isJsonArray()) {
 661                                 JsonArray cmdResponse = response.getResult().getAsJsonArray();
 662                                 final String transformation = ch.getTransfortmation();
 663                                 if (transformation == null || transformation.isBlank()) {
 664                                     JsonElement response0 = cmdResponse.get(0);
 665                                     updateChannel(ch, ch.getChannel(), response0.isJsonPrimitive() ? response0
 666                                             : new JsonPrimitive(response0.toString()));
 667                                 } else {
 668                                     updateChannel(ch, ch.getChannel(), cmdResponse);
 669                                 }
 670                             } else {
 671                                 updateChannel(ch, ch.getChannel(), new JsonPrimitive(response.getResult().toString()));
 672                             }
 673                         }
 674                     }
 675                     break;
 676             }
 677         } catch (Exception e) {
 678             logger.debug("Error while handing message {}", response.getResponse(), e);
 679         }
 680     }
 681 }