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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.time.Instant;
  21 import java.util.ArrayList;
  22 import java.util.HashMap;
  23 import java.util.LinkedHashSet;
  24 import java.util.List;
  25 import java.util.Map;
  26 import java.util.Map.Entry;
  27 import java.util.Set;
  28 import java.util.concurrent.TimeUnit;
  29
  30 import javax.measure.Unit;
  31 import javax.measure.format.MeasurementParseException;
  32
  33 import org.eclipse.jdt.annotation.NonNullByDefault;
  34 import org.eclipse.jdt.annotation.Nullable;
  35 import org.openhab.binding.miio.internal.MiIoBindingConfiguration;
  36 import org.openhab.binding.miio.internal.MiIoCommand;
  37 import org.openhab.binding.miio.internal.MiIoQuantiyTypes;
  38 import org.openhab.binding.miio.internal.MiIoSendCommand;
  39 import org.openhab.binding.miio.internal.Utils;
  40 import org.openhab.binding.miio.internal.basic.ActionConditions;
  41 import org.openhab.binding.miio.internal.basic.BasicChannelTypeProvider;
  42 import org.openhab.binding.miio.internal.basic.CommandParameterType;
  43 import org.openhab.binding.miio.internal.basic.Conversions;
  44 import org.openhab.binding.miio.internal.basic.MiIoBasicChannel;
  45 import org.openhab.binding.miio.internal.basic.MiIoBasicDevice;
  46 import org.openhab.binding.miio.internal.basic.MiIoDatabaseWatchService;
  47 import org.openhab.binding.miio.internal.basic.MiIoDeviceAction;
  48 import org.openhab.binding.miio.internal.basic.MiIoDeviceActionCondition;
  49 import org.openhab.binding.miio.internal.cloud.CloudConnector;
  50 import org.openhab.binding.miio.internal.transport.MiIoAsyncCommunication;
  51 import org.openhab.core.cache.ExpiringCache;
  52 import org.openhab.core.library.types.DecimalType;
  53 import org.openhab.core.library.types.HSBType;
  54 import org.openhab.core.library.types.OnOffType;
  55 import org.openhab.core.library.types.OpenClosedType;
  56 import org.openhab.core.library.types.PercentType;
  57 import org.openhab.core.library.types.QuantityType;
  58 import org.openhab.core.library.types.StringType;
  59 import org.openhab.core.library.unit.SIUnits;
  60 import org.openhab.core.library.unit.Units;
  61 import org.openhab.core.thing.Channel;
  62 import org.openhab.core.thing.ChannelUID;
  63 import org.openhab.core.thing.Thing;
  64 import org.openhab.core.thing.binding.builder.ChannelBuilder;
  65 import org.openhab.core.thing.binding.builder.ThingBuilder;
  66 import org.openhab.core.thing.type.ChannelTypeRegistry;
  67 import org.openhab.core.thing.type.ChannelTypeUID;
  68 import org.openhab.core.types.Command;
  69 import org.openhab.core.types.RefreshType;
  70 import org.slf4j.Logger;
  71 import org.slf4j.LoggerFactory;
  72
  73 import com.google.gson.Gson;
  74 import com.google.gson.GsonBuilder;
  75 import com.google.gson.JsonArray;
  76 import com.google.gson.JsonElement;
  77 import com.google.gson.JsonIOException;
  78 import com.google.gson.JsonObject;
  79 import com.google.gson.JsonParser;
  80 import com.google.gson.JsonPrimitive;
  81 import com.google.gson.JsonSyntaxException;
  82
  83 /**
  84  * The {@link MiIoBasicHandler} is responsible for handling commands, which are
  85  * sent to one of the channels.
  86  *
  87  * @author Marcel Verpaalen - Initial contribution
  88  */
  89 @NonNullByDefault
  90 public class MiIoBasicHandler extends MiIoAbstractHandler {
  91     private final Logger logger = LoggerFactory.getLogger(MiIoBasicHandler.class);
  92     private boolean hasChannelStructure;
  93
  94     private final ExpiringCache<Boolean> updateDataCache = new ExpiringCache<>(CACHE_EXPIRY, () -> {
  95         miIoScheduler.schedule(this::updateData, 0, TimeUnit.SECONDS);
  96         return true;
  97     });
  98
  99     List<MiIoBasicChannel> refreshList = new ArrayList<>();
 100     private Map<String, MiIoBasicChannel> refreshListCustomCommands = new HashMap<>();
 101
 102     private @Nullable MiIoBasicDevice miioDevice;
 103     private Map<ChannelUID, MiIoBasicChannel> actions = new HashMap<>();
 104     private ChannelTypeRegistry channelTypeRegistry;
 105     private BasicChannelTypeProvider basicChannelTypeProvider;
 106
 107     public MiIoBasicHandler(Thing thing, MiIoDatabaseWatchService miIoDatabaseWatchService,
 108             CloudConnector cloudConnector, ChannelTypeRegistry channelTypeRegistry,
 109             BasicChannelTypeProvider basicChannelTypeProvider) {
 110         super(thing, miIoDatabaseWatchService, cloudConnector);
 111         this.channelTypeRegistry = channelTypeRegistry;
 112         this.basicChannelTypeProvider = basicChannelTypeProvider;
 113     }
 114
 115     @Override
 116     public void initialize() {
 117         super.initialize();
 118         hasChannelStructure = false;
 119         isIdentified = false;
 120         refreshList = new ArrayList<>();
 121         refreshListCustomCommands = new HashMap<>();
 122     }
 123
 124     @Override
 125     public void handleCommand(ChannelUID channelUID, Command receivedCommand) {
 126         Command command = receivedCommand;
 127         deviceVariables.put(TIMESTAMP, Instant.now().getEpochSecond());
 128         if (command == RefreshType.REFRESH) {
 129             if (updateDataCache.isExpired()) {
 130                 logger.debug("Refreshing {}", channelUID);
 131                 updateDataCache.getValue();
 132             } else {
 133                 logger.debug("Refresh {} skipped. Already refreshing", channelUID);
 134             }
 135             return;
 136         }
 137         if (handleCommandsChannels(channelUID, command)) {
 138             forceStatusUpdate();
 139             return;
 140         }
 141         logger.debug("Locating action for {} channel '{}': '{}'", getThing().getUID(), channelUID.getId(), command);
 142         if (!actions.isEmpty()) {
 143             final MiIoBasicChannel miIoBasicChannel = actions.get(channelUID);
 144             if (miIoBasicChannel != null) {
 145                 int valuePos = 0;
 146                 for (MiIoDeviceAction action : miIoBasicChannel.getActions()) {
 147                     @Nullable
 148                     JsonElement value = null;
 149                     JsonArray parameters = action.getParameters().deepCopy();
 150                     for (int i = 0; i < action.getParameters().size(); i++) {
 151                         JsonElement p = action.getParameters().get(i);
 152                         if (p.isJsonPrimitive() && p.getAsString().toLowerCase().contains("$value$")) {
 153                             valuePos = i;
 154                             break;
 155                         }
 156                     }
 157                     String cmd = action.getCommand();
 158                     CommandParameterType paramType = action.getparameterType();
 159                     if (command instanceof QuantityType) {
 160                         QuantityType<?> qtc = null;
 161                         try {
 162                             if (!miIoBasicChannel.getUnit().isBlank()) {
 163                                 Unit<?> unit = MiIoQuantiyTypes.get(miIoBasicChannel.getUnit());
 164                                 if (unit != null) {
 165                                     qtc = ((QuantityType<?>) command).toUnit(unit);
 166                                 }
 167                             }
 168                         } catch (MeasurementParseException e) {
 169                             // swallow
 170                         }
 171                         if (qtc != null) {
 172                             command = new DecimalType(qtc.toBigDecimal());
 173                         } else {
 174                             logger.debug("Could not convert QuantityType to '{}'", miIoBasicChannel.getUnit());
 175                             command = new DecimalType(((QuantityType<?>) command).toBigDecimal());
 176                         }
 177                     }
 178                     if (paramType == CommandParameterType.COLOR) {
 179                         if (command instanceof HSBType) {
 180                             HSBType hsb = (HSBType) command;
 181                             Color color = Color.getHSBColor(hsb.getHue().floatValue() / 360,
 182                                     hsb.getSaturation().floatValue() / 100, hsb.getBrightness().floatValue() / 100);
 183                             value = new JsonPrimitive(
 184                                     (color.getRed() << 16) + (color.getGreen() << 8) + color.getBlue());
 185                         } else if (command instanceof DecimalType) {
 186                             // actually brightness is being set instead of a color
 187                             value = new JsonPrimitive(((DecimalType) command).toBigDecimal());
 188                         } else if (command instanceof OnOffType) {
 189                             value = new JsonPrimitive(command == OnOffType.ON ? 100 : 0);
 190                         } else {
 191                             logger.debug("Unsupported command for COLOR: {}", command);
 192                         }
 193                     } else if (command instanceof OnOffType) {
 194                         if (paramType == CommandParameterType.ONOFF) {
 195                             value = new JsonPrimitive(command == OnOffType.ON ? "on" : "off");
 196                         } else if (paramType == CommandParameterType.ONOFFPARA) {
 197                             cmd = cmd.replace("*", command == OnOffType.ON ? "on" : "off");
 198                             value = new JsonArray();
 199                         } else if (paramType == CommandParameterType.ONOFFBOOL) {
 200                             boolean boolCommand = command == OnOffType.ON;
 201                             value = new JsonPrimitive(boolCommand);
 202                         } else if (paramType == CommandParameterType.ONOFFBOOLSTRING) {
 203                             value = new JsonPrimitive(command == OnOffType.ON ? "true" : "false");
 204                         } else if (paramType == CommandParameterType.ONOFFNUMBER) {
 205                             value = new JsonPrimitive(command == OnOffType.ON ? 1 : 0);
 206                         }
 207                     } else if (command instanceof DecimalType) {
 208                         value = new JsonPrimitive(((DecimalType) command).toBigDecimal());
 209                     } else if (command instanceof StringType) {
 210                         if (paramType == CommandParameterType.STRING) {
 211                             value = new JsonPrimitive(command.toString().toLowerCase());
 212                         } else if (paramType == CommandParameterType.CUSTOMSTRING) {
 213                             value = new JsonPrimitive(parameters.get(valuePos).getAsString().replace("$value",
 214                                     command.toString().toLowerCase()));
 215                         }
 216                     } else {
 217                         value = new JsonPrimitive(command.toString().toLowerCase());
 218                     }
 219                     if (paramType == CommandParameterType.EMPTY) {
 220                         value = new JsonArray();
 221                     }
 222                     final MiIoDeviceActionCondition miIoDeviceActionCondition = action.getCondition();
 223                     if (miIoDeviceActionCondition != null) {
 224                         value = ActionConditions.executeAction(miIoDeviceActionCondition, deviceVariables, value,
 225                                 command);
 226                     }
 227                     // Check for miot channel
 228                     if (value != null) {
 229                         if (action.isMiOtAction()) {
 230                             value = miotActionTransform(action, miIoBasicChannel, value);
 231                         } else if (miIoBasicChannel.isMiOt()) {
 232                             value = miotTransform(miIoBasicChannel, value);
 233                         }
 234                     }
 235                     if (paramType != CommandParameterType.NONE && paramType != CommandParameterType.ONOFFPARA
 236                             && value != null) {
 237                         if (parameters.size() > 0) {
 238                             parameters.set(valuePos, value);
 239                         } else {
 240                             parameters.add(value);
 241                         }
 242                     }
 243                     if (action.isMiOtAction() && parameters.size() > 0 && parameters.get(0).isJsonObject()) {
 244                         // hack as unlike any other commands miot actions parameters appear to be send as a json object
 245                         // instead of a json array
 246                         cmd = cmd + parameters.get(0).getAsJsonObject().toString();
 247                     } else {
 248                         cmd = cmd + parameters.toString();
 249                     }
 250                     if (value != null) {
 251                         logger.debug("Sending command {}", cmd);
 252                         sendCommand(cmd);
 253                     } else {
 254                         if (miIoDeviceActionCondition != null) {
 255                             logger.debug("Conditional command {} not send, condition '{}' not met", cmd,
 256                                     miIoDeviceActionCondition.getName());
 257                         } else {
 258                             logger.debug("Command not send. Value null");
 259                         }
 260                     }
 261                 }
 262             } else {
 263                 logger.debug("Channel Id {} not in mapping.", channelUID.getId());
 264                 if (logger.isTraceEnabled()) {
 265                     for (Entry<ChannelUID, MiIoBasicChannel> a : actions.entrySet()) {
 266                         logger.trace("Available entries: {} : {}", a.getKey(), a.getValue().getFriendlyName());
 267                     }
 268                 }
 269             }
 270             forceStatusUpdate();
 271         } else {
 272             logger.debug("Actions not loaded yet, or none available");
 273         }
 274     }
 275
 276     private void forceStatusUpdate() {
 277         updateDataCache.invalidateValue();
 278         miIoScheduler.schedule(() -> {
 279             updateData();
 280         }, 3000, TimeUnit.MILLISECONDS);
 281     }
 282
 283     private @Nullable JsonElement miotTransform(MiIoBasicChannel miIoBasicChannel, @Nullable JsonElement value) {
 284         JsonObject json = new JsonObject();
 285         json.addProperty("did", miIoBasicChannel.getChannel());
 286         json.addProperty("siid", miIoBasicChannel.getSiid());
 287         json.addProperty("piid", miIoBasicChannel.getPiid());
 288         json.add("value", value);
 289         return json;
 290     }
 291
 292     private @Nullable JsonElement miotActionTransform(MiIoDeviceAction action, MiIoBasicChannel miIoBasicChannel,
 293             @Nullable JsonElement value) {
 294         JsonObject json = new JsonObject();
 295         json.addProperty("did", miIoBasicChannel.getChannel());
 296         json.addProperty("siid", action.getSiid());
 297         json.addProperty("aiid", action.getAiid());
 298         if (value != null) {
 299             json.add("in", value);
 300         }
 301         return json;
 302     }
 303
 304     @Override
 305     protected synchronized void updateData() {
 306         logger.debug("Periodic update for '{}' ({})", getThing().getUID().toString(), getThing().getThingTypeUID());
 307         final MiIoAsyncCommunication miioCom = getConnection();
 308         try {
 309             if (!hasConnection() || skipUpdate() || miioCom == null) {
 310                 return;
 311             }
 312             checkChannelStructure();
 313             if (!isIdentified) {
 314                 sendCommand(MiIoCommand.MIIO_INFO);
 315             }
 316             final MiIoBasicDevice midevice = miioDevice;
 317             if (midevice != null) {
 318                 deviceVariables.put(TIMESTAMP, Instant.now().getEpochSecond());
 319                 refreshProperties(midevice);
 320                 refreshCustomProperties(midevice);
 321                 refreshNetwork();
 322             }
 323         } catch (Exception e) {
 324             logger.debug("Error while updating '{}': ", getThing().getUID().toString(), e);
 325         }
 326     }
 327
 328     private void refreshCustomProperties(MiIoBasicDevice midevice) {
 329         for (MiIoBasicChannel miChannel : refreshListCustomCommands.values()) {
 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             String cmd = miChannel.getChannelCustomRefreshCommand();
 336             if (!cmd.startsWith("/")) {
 337                 cmds.put(sendCommand(miChannel.getChannelCustomRefreshCommand()), miChannel.getChannel());
 338             } else {
 339                 if (cloudServer.isBlank()) {
 340                     logger.debug("Cloudserver empty. Skipping refresh for {} channel '{}'", getThing().getUID(),
 341                             miChannel.getChannel());
 342                 } else {
 343                     cmds.put(sendCommand(cmd, cloudServer), miChannel.getChannel());
 344                 }
 345             }
 346         }
 347     }
 348
 349     private boolean refreshProperties(MiIoBasicDevice device) {
 350         MiIoCommand command = MiIoCommand.getCommand(device.getDevice().getPropertyMethod());
 351         int maxProperties = device.getDevice().getMaxProperties();
 352         JsonArray getPropString = new JsonArray();
 353         for (MiIoBasicChannel miChannel : refreshList) {
 354             if (!isLinked(miChannel.getChannel())) {
 355                 logger.debug("Skip refresh of channel {} for {} as it is not linked", miChannel.getChannel(),
 356                         getThing().getUID());
 357                 continue;
 358             }
 359             JsonElement property;
 360             if (miChannel.isMiOt()) {
 361                 JsonObject json = new JsonObject();
 362                 json.addProperty("did", miChannel.getProperty());
 363                 json.addProperty("siid", miChannel.getSiid());
 364                 json.addProperty("piid", miChannel.getPiid());
 365                 property = json;
 366             } else {
 367                 property = new JsonPrimitive(miChannel.getProperty());
 368             }
 369             getPropString.add(property);
 370             if (getPropString.size() >= maxProperties) {
 371                 sendRefreshProperties(command, getPropString);
 372                 getPropString = new JsonArray();
 373             }
 374         }
 375         if (getPropString.size() > 0) {
 376             sendRefreshProperties(command, getPropString);
 377         }
 378         return true;
 379     }
 380
 381     private void sendRefreshProperties(MiIoCommand command, JsonArray getPropString) {
 382         sendCommand(command, getPropString.toString());
 383     }
 384
 385     /**
 386      * Checks if the channel structure has been build already based on the model data. If not build it.
 387      */
 388     private void checkChannelStructure() {
 389         final MiIoBindingConfiguration configuration = this.configuration;
 390         if (configuration == null) {
 391             return;
 392         }
 393         if (!hasChannelStructure) {
 394             if (configuration.model.isEmpty()) {
 395                 logger.debug("Model needs to be determined");
 396                 isIdentified = false;
 397             } else {
 398                 hasChannelStructure = buildChannelStructure(configuration.model);
 399             }
 400         }
 401         if (hasChannelStructure) {
 402             refreshList = new ArrayList<>();
 403             refreshListCustomCommands = new HashMap<>();
 404             final MiIoBasicDevice miioDevice = this.miioDevice;
 405             if (miioDevice != null) {
 406                 for (MiIoBasicChannel miChannel : miioDevice.getDevice().getChannels()) {
 407                     if (miChannel.getRefresh()) {
 408                         if (miChannel.getChannelCustomRefreshCommand().isBlank()) {
 409                             refreshList.add(miChannel);
 410                         } else {
 411                             String i = miChannel.getChannelCustomRefreshCommand().split("\\[")[0];
 412                             refreshListCustomCommands.put(i.trim(), miChannel);
 413                         }
 414                     }
 415                 }
 416             }
 417
 418         }
 419     }
 420
 421     private boolean buildChannelStructure(String deviceName) {
 422         logger.debug("Building Channel Structure for {} - Model: {}", getThing().getUID().toString(), deviceName);
 423         URL fn = miIoDatabaseWatchService.getDatabaseUrl(deviceName);
 424         if (fn == null) {
 425             logger.warn("Database entry for model '{}' cannot be found.", deviceName);
 426             return false;
 427         }
 428         try {
 429             JsonObject deviceMapping = Utils.convertFileToJSON(fn);
 430             logger.debug("Using device database: {} for device {}", fn.getFile(), deviceName);
 431             Gson gson = new GsonBuilder().serializeNulls().create();
 432             miioDevice = gson.fromJson(deviceMapping, MiIoBasicDevice.class);
 433             for (Channel ch : getThing().getChannels()) {
 434                 logger.debug("Current thing channels {}, type: {}", ch.getUID(), ch.getChannelTypeUID());
 435             }
 436             ThingBuilder thingBuilder = editThing();
 437             int channelsAdded = 0;
 438
 439             // make a map of the actions
 440             actions = new HashMap<>();
 441             final MiIoBasicDevice device = this.miioDevice;
 442             if (device != null) {
 443                 for (Channel cn : getThing().getChannels()) {
 444                     logger.trace("Channel '{}' for thing {} already exist... removing", cn.getUID(),
 445                             getThing().getUID());
 446                     if (!PERSISTENT_CHANNELS.contains(cn.getUID().getId().toString())) {
 447                         thingBuilder.withoutChannels(cn);
 448                     }
 449                 }
 450                 for (MiIoBasicChannel miChannel : device.getDevice().getChannels()) {
 451                     logger.debug("properties {}", miChannel);
 452                     if (!miChannel.getType().isEmpty()) {
 453                         basicChannelTypeProvider.addChannelType(miChannel, deviceName);
 454                         ChannelUID channelUID = addChannel(thingBuilder, miChannel, deviceName);
 455                         if (channelUID != null) {
 456                             actions.put(channelUID, miChannel);
 457                             channelsAdded++;
 458                         } else {
 459                             logger.debug("Channel for {} ({}) not loaded", miChannel.getChannel(),
 460                                     miChannel.getFriendlyName());
 461                         }
 462                     } else {
 463                         logger.debug("Channel {} ({}), not loaded, missing type", miChannel.getChannel(),
 464                                 miChannel.getFriendlyName());
 465                     }
 466                 }
 467             }
 468             // only update if channels were added/removed
 469             if (channelsAdded > 0) {
 470                 logger.debug("Current thing channels added: {}", channelsAdded);
 471                 updateThing(thingBuilder.build());
 472             }
 473             return true;
 474         } catch (JsonIOException | JsonSyntaxException e) {
 475             logger.warn("Error parsing database Json", e);
 476         } catch (IOException e) {
 477             logger.warn("Error reading database file", e);
 478         } catch (Exception e) {
 479             logger.warn("Error creating channel structure", e);
 480         }
 481         return false;
 482     }
 483
 484     private @Nullable ChannelUID addChannel(ThingBuilder thingBuilder, MiIoBasicChannel miChannel, String model) {
 485         String channel = miChannel.getChannel();
 486         String dataType = miChannel.getType();
 487         if (channel.isEmpty() || dataType.isEmpty()) {
 488             logger.info("Channel '{}', UID '{}' cannot be added incorrectly configured database. ", channel,
 489                     getThing().getUID());
 490             return null;
 491         }
 492         ChannelUID channelUID = new ChannelUID(getThing().getUID(), channel);
 493         ChannelBuilder newChannel = ChannelBuilder.create(channelUID, dataType).withLabel(miChannel.getFriendlyName());
 494         boolean useGeneratedChannelType = false;
 495         if (!miChannel.getChannelType().isBlank()) {
 496             ChannelTypeUID channelTypeUID = new ChannelTypeUID(miChannel.getChannelType());
 497             if (channelTypeRegistry.getChannelType(channelTypeUID) != null) {
 498                 newChannel = newChannel.withType(channelTypeUID);
 499                 final LinkedHashSet<String> tags = miChannel.getTags();
 500                 if (tags != null && !tags.isEmpty()) {
 501                     newChannel.withDefaultTags(tags);
 502                 }
 503             } else {
 504                 logger.debug("ChannelType '{}' is not available. Check the Json file for {}", channelTypeUID, model);
 505                 useGeneratedChannelType = true;
 506             }
 507         } else {
 508             useGeneratedChannelType = true;
 509         }
 510         if (useGeneratedChannelType) {
 511             newChannel = newChannel
 512                     .withType(new ChannelTypeUID(BINDING_ID, model.toUpperCase().replace(".", "_") + "_" + channel));
 513             final Set<String> tags = miChannel.getTags();
 514             if (tags != null && !tags.isEmpty()) {
 515                 newChannel.withDefaultTags(tags);
 516             }
 517         }
 518         thingBuilder.withChannel(newChannel.build());
 519         return channelUID;
 520     }
 521
 522     private @Nullable MiIoBasicChannel getChannel(String parameter) {
 523         for (MiIoBasicChannel refreshEntry : refreshList) {
 524             if (refreshEntry.getProperty().equals(parameter)) {
 525                 return refreshEntry;
 526             }
 527         }
 528         logger.trace("Did not find channel for {} in {}", parameter, refreshList);
 529         return null;
 530     }
 531
 532     private @Nullable MiIoBasicChannel getCustomRefreshChannel(String channelName) {
 533         for (MiIoBasicChannel refreshEntry : refreshListCustomCommands.values()) {
 534             if (refreshEntry.getChannel().equals(channelName)) {
 535                 return refreshEntry;
 536             }
 537         }
 538         logger.trace("Did not find channel for {} in {}", channelName, refreshList);
 539         return null;
 540     }
 541
 542     private void updatePropsFromJsonArray(MiIoSendCommand response) {
 543         JsonArray res = response.getResult().getAsJsonArray();
 544         JsonArray para = JsonParser.parseString(response.getCommandString()).getAsJsonObject().get("params")
 545                 .getAsJsonArray();
 546         if (res.size() != para.size()) {
 547             logger.debug("Unexpected size different. Request size {},  response size {}. (Req: {}, Resp:{})",
 548                     para.size(), res.size(), para, res);
 549             return;
 550         }
 551         for (int i = 0; i < para.size(); i++) {
 552             // This is a miot parameter
 553             String param;
 554             final JsonElement paraElement = para.get(i);
 555             if (paraElement.isJsonObject()) { // miot channel
 556                 param = paraElement.getAsJsonObject().get("did").getAsString();
 557             } else {
 558                 param = paraElement.getAsString();
 559             }
 560             JsonElement val = res.get(i);
 561             if (val.isJsonNull()) {
 562                 logger.debug("Property '{}' returned null (is it supported?).", param);
 563                 continue;
 564             } else if (val.isJsonObject()) { // miot channel
 565                 val = val.getAsJsonObject().get("value");
 566             }
 567             MiIoBasicChannel basicChannel = getChannel(param);
 568             updateChannel(basicChannel, param, val);
 569         }
 570     }
 571
 572     private void updatePropsFromJsonObject(MiIoSendCommand response) {
 573         JsonObject res = response.getResult().getAsJsonObject();
 574         for (Object k : res.keySet()) {
 575             String param = (String) k;
 576             JsonElement val = res.get(param);
 577             if (val.isJsonNull()) {
 578                 logger.debug("Property '{}' returned null (is it supported?).", param);
 579                 continue;
 580             }
 581             MiIoBasicChannel basicChannel = getChannel(param);
 582             updateChannel(basicChannel, param, val);
 583         }
 584     }
 585
 586     private void updateChannel(@Nullable MiIoBasicChannel basicChannel, String param, JsonElement value) {
 587         JsonElement val = value;
 588         deviceVariables.put(param, val);
 589         if (basicChannel == null) {
 590             logger.debug("Channel not found for {}", param);
 591             return;
 592         }
 593         final String transformation = basicChannel.getTransformation();
 594         if (transformation != null) {
 595             JsonElement transformed = Conversions.execute(transformation, val, deviceVariables);
 596             logger.debug("Transformed with '{}': {} {} -> {} ", transformation, basicChannel.getFriendlyName(), val,
 597                     transformed);
 598             val = transformed;
 599         }
 600         try {
 601             String[] chType = basicChannel.getType().toLowerCase().split(":");
 602             switch (chType[0]) {
 603                 case "number":
 604                     quantityTypeUpdate(basicChannel, val, chType.length > 1 ? chType[1] : "");
 605                     break;
 606                 case "dimmer":
 607                     updateState(basicChannel.getChannel(), new PercentType(val.getAsBigDecimal()));
 608                     break;
 609                 case "string":
 610                     if (val.isJsonPrimitive()) {
 611                         updateState(basicChannel.getChannel(), new StringType(val.getAsString()));
 612                     } else {
 613                         updateState(basicChannel.getChannel(), new StringType(val.toString()));
 614                     }
 615                     break;
 616                 case "switch":
 617                     if (val.getAsJsonPrimitive().isNumber()) {
 618                         updateState(basicChannel.getChannel(), val.getAsInt() > 0 ? OnOffType.ON : OnOffType.OFF);
 619                     } else {
 620                         String strVal = val.getAsString().toLowerCase();
 621                         updateState(basicChannel.getChannel(),
 622                                 "on".equals(strVal) || "true".equals(strVal) || "1".equals(strVal) ? OnOffType.ON
 623                                         : OnOffType.OFF);
 624                     }
 625                     break;
 626                 case "contact":
 627                     if (val.getAsJsonPrimitive().isNumber()) {
 628                         updateState(basicChannel.getChannel(),
 629                                 val.getAsInt() > 0 ? OpenClosedType.OPEN : OpenClosedType.CLOSED);
 630                     } else {
 631                         String strVal = val.getAsString().toLowerCase();
 632                         updateState(basicChannel.getChannel(),
 633                                 "on".equals(strVal) || "true".equals(strVal) || "1".equals(strVal) ? OpenClosedType.OPEN
 634                                         : OpenClosedType.CLOSED);
 635                     }
 636                     break;
 637                 case "color":
 638                     if (val.isJsonPrimitive()
 639                             && (val.getAsJsonPrimitive().isNumber() || val.getAsString().matches("^[0-9]+$"))) {
 640                         Color rgb = new Color(val.getAsInt());
 641                         HSBType hsb = HSBType.fromRGB(rgb.getRed(), rgb.getGreen(), rgb.getBlue());
 642                         updateState(basicChannel.getChannel(), hsb);
 643                     } else {
 644                         try {
 645                             HSBType hsb = HSBType.valueOf(val.getAsString().replace("[", "").replace("]", ""));
 646                             updateState(basicChannel.getChannel(), hsb);
 647                         } catch (IllegalArgumentException e) {
 648                             logger.debug("Failed updating channel '{}'. Could not convert '{}' to color",
 649                                     basicChannel.getChannel(), val.getAsString());
 650                         }
 651                     }
 652                     break;
 653                 default:
 654                     logger.debug("No update logic for channeltype '{}' ", basicChannel.getType());
 655             }
 656         } catch (Exception e) {
 657             logger.debug("Error updating {} property {} with '{}' : {}: {}", getThing().getUID(),
 658                     basicChannel.getChannel(), val, e.getClass().getCanonicalName(), e.getMessage());
 659             logger.trace("Property update error detail:", e);
 660         }
 661     }
 662
 663     private void quantityTypeUpdate(MiIoBasicChannel basicChannel, JsonElement val, String type) {
 664         if (!basicChannel.getUnit().isBlank()) {
 665             Unit<?> unit = MiIoQuantiyTypes.get(basicChannel.getUnit());
 666             if (unit != null) {
 667                 logger.debug("'{}' channel '{}' has unit '{}' with symbol '{}'.", getThing().getUID(),
 668                         basicChannel.getChannel(), basicChannel.getUnit(), unit);
 669                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), unit));
 670             } else {
 671                 logger.debug(
 672                         "Unit '{}' used by '{}' channel '{}' is not found in conversion table... Trying anyway to submit as the update.",
 673                         basicChannel.getUnit(), getThing().getUID(), basicChannel.getChannel());
 674                 updateState(basicChannel.getChannel(),
 675                         new QuantityType<>(val.getAsBigDecimal().toPlainString() + " " + basicChannel.getUnit()));
 676             }
 677             return;
 678         }
 679         // if no unit is provided or unit not found use default units, these units have so far been seen for miio
 680         // devices
 681         switch (type.toLowerCase()) {
 682             case "temperature":
 683                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), SIUnits.CELSIUS));
 684                 break;
 685             case "electriccurrent":
 686                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), Units.AMPERE));
 687                 break;
 688             case "energy":
 689                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), Units.WATT));
 690                 break;
 691             case "time":
 692                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), Units.HOUR));
 693                 break;
 694             default:
 695                 updateState(basicChannel.getChannel(), new DecimalType(val.getAsBigDecimal()));
 696         }
 697     }
 698
 699     @Override
 700     public void onMessageReceived(MiIoSendCommand response) {
 701         super.onMessageReceived(response);
 702         if (response.isError()) {
 703             return;
 704         }
 705         try {
 706             switch (response.getCommand()) {
 707                 case MIIO_INFO:
 708                     break;
 709                 case GET_VALUE:
 710                 case GET_PROPERTIES:
 711                 case GET_PROPERTY:
 712                     if (response.getResult().isJsonArray()) {
 713                         updatePropsFromJsonArray(response);
 714                     } else if (response.getResult().isJsonObject()) {
 715                         updatePropsFromJsonObject(response);
 716                     }
 717                     break;
 718                 default:
 719                     String channel = cmds.get(response.getId());
 720                     if (channel != null) {
 721                         logger.debug("Processing custom refresh command response for '{}' - {}", response.getMethod(),
 722                                 response.getResult());
 723                         final MiIoBasicChannel ch = getCustomRefreshChannel(channel);
 724                         if (ch != null) {
 725                             if (response.getResult().isJsonArray()) {
 726                                 JsonArray cmdResponse = response.getResult().getAsJsonArray();
 727                                 final String transformation = ch.getTransformation();
 728                                 if (transformation == null || transformation.isBlank()) {
 729                                     JsonElement response0 = cmdResponse.get(0);
 730                                     updateChannel(ch, ch.getChannel(), response0.isJsonPrimitive() ? response0
 731                                             : new JsonPrimitive(response0.toString()));
 732                                 } else {
 733                                     updateChannel(ch, ch.getChannel(), cmdResponse);
 734                                 }
 735                             } else {
 736                                 updateChannel(ch, ch.getChannel(), new JsonPrimitive(response.getResult().toString()));
 737                             }
 738                         }
 739                         cmds.remove(response.getId());
 740                     }
 741                     break;
 742             }
 743         } catch (Exception e) {
 744             logger.debug("Error while handing message {}", response.getResponse(), e);
 745         }
 746     }
 747 }