git.basschouten.com Git - openhab-addons.git/blob

   1 /**
   2  * Copyright (c) 2010-2020 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.remoteopenhab.internal.handler;
  14
  15 import static org.openhab.binding.remoteopenhab.internal.RemoteopenhabBindingConstants.BINDING_ID;
  16
  17 import java.net.MalformedURLException;
  18 import java.net.URL;
  19 import java.time.ZonedDateTime;
  20 import java.time.format.DateTimeFormatter;
  21 import java.time.format.DateTimeParseException;
  22 import java.util.ArrayList;
  23 import java.util.Collection;
  24 import java.util.Collections;
  25 import java.util.List;
  26 import java.util.concurrent.ScheduledFuture;
  27 import java.util.concurrent.TimeUnit;
  28 import java.util.stream.Collectors;
  29
  30 import javax.ws.rs.client.ClientBuilder;
  31
  32 import org.eclipse.jdt.annotation.NonNullByDefault;
  33 import org.eclipse.jdt.annotation.Nullable;
  34 import org.eclipse.jetty.client.HttpClient;
  35 import org.openhab.binding.remoteopenhab.internal.RemoteopenhabChannelTypeProvider;
  36 import org.openhab.binding.remoteopenhab.internal.RemoteopenhabStateDescriptionOptionProvider;
  37 import org.openhab.binding.remoteopenhab.internal.config.RemoteopenhabServerConfiguration;
  38 import org.openhab.binding.remoteopenhab.internal.data.RemoteopenhabItem;
  39 import org.openhab.binding.remoteopenhab.internal.data.RemoteopenhabStateDescription;
  40 import org.openhab.binding.remoteopenhab.internal.data.RemoteopenhabStateOption;
  41 import org.openhab.binding.remoteopenhab.internal.discovery.RemoteopenhabDiscoveryService;
  42 import org.openhab.binding.remoteopenhab.internal.exceptions.RemoteopenhabException;
  43 import org.openhab.binding.remoteopenhab.internal.listener.RemoteopenhabItemsDataListener;
  44 import org.openhab.binding.remoteopenhab.internal.listener.RemoteopenhabStreamingDataListener;
  45 import org.openhab.binding.remoteopenhab.internal.rest.RemoteopenhabRestClient;
  46 import org.openhab.core.library.CoreItemFactory;
  47 import org.openhab.core.library.types.DateTimeType;
  48 import org.openhab.core.library.types.DecimalType;
  49 import org.openhab.core.library.types.HSBType;
  50 import org.openhab.core.library.types.OnOffType;
  51 import org.openhab.core.library.types.OpenClosedType;
  52 import org.openhab.core.library.types.PercentType;
  53 import org.openhab.core.library.types.PlayPauseType;
  54 import org.openhab.core.library.types.PointType;
  55 import org.openhab.core.library.types.QuantityType;
  56 import org.openhab.core.library.types.RawType;
  57 import org.openhab.core.library.types.StringType;
  58 import org.openhab.core.net.NetUtil;
  59 import org.openhab.core.thing.Bridge;
  60 import org.openhab.core.thing.Channel;
  61 import org.openhab.core.thing.ChannelUID;
  62 import org.openhab.core.thing.ThingStatus;
  63 import org.openhab.core.thing.ThingStatusDetail;
  64 import org.openhab.core.thing.binding.BaseBridgeHandler;
  65 import org.openhab.core.thing.binding.ThingHandlerService;
  66 import org.openhab.core.thing.binding.builder.ChannelBuilder;
  67 import org.openhab.core.thing.binding.builder.ThingBuilder;
  68 import org.openhab.core.thing.type.AutoUpdatePolicy;
  69 import org.openhab.core.thing.type.ChannelKind;
  70 import org.openhab.core.thing.type.ChannelType;
  71 import org.openhab.core.thing.type.ChannelTypeBuilder;
  72 import org.openhab.core.thing.type.ChannelTypeUID;
  73 import org.openhab.core.types.Command;
  74 import org.openhab.core.types.RefreshType;
  75 import org.openhab.core.types.State;
  76 import org.openhab.core.types.StateDescriptionFragmentBuilder;
  77 import org.openhab.core.types.StateOption;
  78 import org.openhab.core.types.TypeParser;
  79 import org.openhab.core.types.UnDefType;
  80 import org.osgi.service.jaxrs.client.SseEventSourceFactory;
  81 import org.slf4j.Logger;
  82 import org.slf4j.LoggerFactory;
  83
  84 import com.google.gson.Gson;
  85
  86 /**
  87  * The {@link RemoteopenhabBridgeHandler} is responsible for handling commands and updating states
  88  * using the REST API of the remote openHAB server.
  89  *
  90  * @author Laurent Garnier - Initial contribution
  91  */
  92 @NonNullByDefault
  93 public class RemoteopenhabBridgeHandler extends BaseBridgeHandler
  94         implements RemoteopenhabStreamingDataListener, RemoteopenhabItemsDataListener {
  95
  96     private static final String DATE_FORMAT_PATTERN = "yyyy-MM-dd'T'HH:mm:ss.SSSZ";
  97     private static final DateTimeFormatter FORMATTER_DATE = DateTimeFormatter.ofPattern(DATE_FORMAT_PATTERN);
  98
  99     private static final long CONNECTION_TIMEOUT_MILLIS = TimeUnit.MILLISECONDS.convert(5, TimeUnit.MINUTES);
 100     private static final int MAX_STATE_SIZE_FOR_LOGGING = 50;
 101
 102     private final Logger logger = LoggerFactory.getLogger(RemoteopenhabBridgeHandler.class);
 103
 104     private final HttpClient httpClientTrustingCert;
 105     private final RemoteopenhabChannelTypeProvider channelTypeProvider;
 106     private final RemoteopenhabStateDescriptionOptionProvider stateDescriptionProvider;
 107
 108     private final Object updateThingLock = new Object();
 109
 110     private @NonNullByDefault({}) RemoteopenhabServerConfiguration config;
 111
 112     private @Nullable ScheduledFuture<?> checkConnectionJob;
 113     private RemoteopenhabRestClient restClient;
 114
 115     public RemoteopenhabBridgeHandler(Bridge bridge, HttpClient httpClient, HttpClient httpClientTrustingCert,
 116             ClientBuilder clientBuilder, SseEventSourceFactory eventSourceFactory,
 117             RemoteopenhabChannelTypeProvider channelTypeProvider,
 118             RemoteopenhabStateDescriptionOptionProvider stateDescriptionProvider, final Gson jsonParser) {
 119         super(bridge);
 120         this.httpClientTrustingCert = httpClientTrustingCert;
 121         this.channelTypeProvider = channelTypeProvider;
 122         this.stateDescriptionProvider = stateDescriptionProvider;
 123         this.restClient = new RemoteopenhabRestClient(httpClient, clientBuilder, eventSourceFactory, jsonParser);
 124     }
 125
 126     @Override
 127     public void initialize() {
 128         logger.debug("Initializing remote openHAB handler for bridge {}", getThing().getUID());
 129
 130         config = getConfigAs(RemoteopenhabServerConfiguration.class);
 131
 132         String host = config.host.trim();
 133         if (host.length() == 0) {
 134             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 135                     "Undefined server address setting in the thing configuration");
 136             return;
 137         }
 138         List<String> localIpAddresses = NetUtil.getAllInterfaceAddresses().stream()
 139                 .filter(a -> !a.getAddress().isLinkLocalAddress())
 140                 .map(a -> a.getAddress().getHostAddress().split("%")[0]).collect(Collectors.toList());
 141         if (localIpAddresses.contains(host)) {
 142             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 143                     "Do not use the local server as a remote server in the thing configuration");
 144             return;
 145         }
 146         String path = config.restPath.trim();
 147         if (path.length() == 0 || !path.startsWith("/")) {
 148             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 149                     "Invalid REST API path setting in the thing configuration");
 150             return;
 151         }
 152         URL url;
 153         try {
 154             url = new URL(config.useHttps ? "https" : "http", host, config.port, path);
 155         } catch (MalformedURLException e) {
 156             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 157                     "Invalid REST URL built from the settings in the thing configuration");
 158             return;
 159         }
 160
 161         String urlStr = url.toString();
 162         if (urlStr.endsWith("/")) {
 163             urlStr = urlStr.substring(0, urlStr.length() - 1);
 164         }
 165         logger.debug("REST URL = {}", urlStr);
 166
 167         restClient.setRestUrl(urlStr);
 168         restClient.setAccessToken(config.token);
 169         if (config.useHttps && config.trustedCertificate) {
 170             restClient.setHttpClient(httpClientTrustingCert);
 171             restClient.setTrustedCertificate(true);
 172         }
 173
 174         updateStatus(ThingStatus.UNKNOWN);
 175
 176         startCheckConnectionJob();
 177     }
 178
 179     @Override
 180     public void dispose() {
 181         logger.debug("Disposing remote openHAB handler for bridge {}", getThing().getUID());
 182         stopStreamingUpdates();
 183         stopCheckConnectionJob();
 184     }
 185
 186     @Override
 187     public void handleCommand(ChannelUID channelUID, Command command) {
 188         if (getThing().getStatus() != ThingStatus.ONLINE) {
 189             return;
 190         }
 191
 192         try {
 193             if (command instanceof RefreshType) {
 194                 String state = restClient.getRemoteItemState(channelUID.getId());
 195                 updateChannelState(channelUID.getId(), null, state);
 196             } else if (isLinked(channelUID)) {
 197                 restClient.sendCommandToRemoteItem(channelUID.getId(), command);
 198                 String commandStr = command.toFullString();
 199                 logger.debug("Sending command {} to remote item {} succeeded",
 200                         commandStr.length() < MAX_STATE_SIZE_FOR_LOGGING ? commandStr
 201                                 : commandStr.substring(0, MAX_STATE_SIZE_FOR_LOGGING) + "...",
 202                         channelUID.getId());
 203             }
 204         } catch (RemoteopenhabException e) {
 205             logger.debug("{}", e.getMessage());
 206         }
 207     }
 208
 209     private void createChannels(List<RemoteopenhabItem> items, boolean replace) {
 210         synchronized (updateThingLock) {
 211             int nbGroups = 0;
 212             List<Channel> channels = new ArrayList<>();
 213             for (RemoteopenhabItem item : items) {
 214                 String itemType = item.type;
 215                 boolean readOnly = false;
 216                 if ("Group".equals(itemType)) {
 217                     if (item.groupType.isEmpty()) {
 218                         // Standard groups are ignored
 219                         nbGroups++;
 220                         continue;
 221                     } else {
 222                         itemType = item.groupType;
 223                     }
 224                 } else {
 225                     if (item.stateDescription != null && item.stateDescription.readOnly) {
 226                         readOnly = true;
 227                     }
 228                 }
 229                 String channelTypeId = String.format("item%s%s", itemType.replace(":", ""), readOnly ? "RO" : "");
 230                 ChannelTypeUID channelTypeUID = new ChannelTypeUID(BINDING_ID, channelTypeId);
 231                 ChannelType channelType = channelTypeProvider.getChannelType(channelTypeUID, null);
 232                 String label;
 233                 String description;
 234                 if (channelType == null) {
 235                     logger.trace("Create the channel type {} for item type {}", channelTypeUID, itemType);
 236                     label = String.format("Remote %s Item", itemType);
 237                     description = String.format("An item of type %s from the remote server.", itemType);
 238                     channelType = ChannelTypeBuilder.state(channelTypeUID, label, itemType).withDescription(description)
 239                             .withStateDescriptionFragment(
 240                                     StateDescriptionFragmentBuilder.create().withReadOnly(readOnly).build())
 241                             .withAutoUpdatePolicy(AutoUpdatePolicy.VETO).build();
 242                     channelTypeProvider.addChannelType(channelType);
 243                 }
 244                 ChannelUID channelUID = new ChannelUID(getThing().getUID(), item.name);
 245                 logger.trace("Create the channel {} of type {}", channelUID, channelTypeUID);
 246                 label = "Item " + item.name;
 247                 description = String.format("Item %s from the remote server.", item.name);
 248                 channels.add(ChannelBuilder.create(channelUID, itemType).withType(channelTypeUID)
 249                         .withKind(ChannelKind.STATE).withLabel(label).withDescription(description).build());
 250             }
 251             ThingBuilder thingBuilder = editThing();
 252             if (replace) {
 253                 thingBuilder.withChannels(channels);
 254                 updateThing(thingBuilder.build());
 255                 logger.debug("{} channels defined for the thing {} (from {} items including {} groups)",
 256                         channels.size(), getThing().getUID(), items.size(), nbGroups);
 257             } else if (channels.size() > 0) {
 258                 int nbRemoved = 0;
 259                 for (Channel channel : channels) {
 260                     if (getThing().getChannel(channel.getUID()) != null) {
 261                         thingBuilder.withoutChannel(channel.getUID());
 262                         nbRemoved++;
 263                     }
 264                 }
 265                 if (nbRemoved > 0) {
 266                     logger.debug("{} channels removed for the thing {} (from {} items)", nbRemoved, getThing().getUID(),
 267                             items.size());
 268                 }
 269                 for (Channel channel : channels) {
 270                     thingBuilder.withChannel(channel);
 271                 }
 272                 updateThing(thingBuilder.build());
 273                 if (nbGroups > 0) {
 274                     logger.debug("{} channels added for the thing {} (from {} items including {} groups)",
 275                             channels.size(), getThing().getUID(), items.size(), nbGroups);
 276                 } else {
 277                     logger.debug("{} channels added for the thing {} (from {} items)", channels.size(),
 278                             getThing().getUID(), items.size());
 279                 }
 280             }
 281         }
 282     }
 283
 284     private void removeChannels(List<RemoteopenhabItem> items) {
 285         synchronized (updateThingLock) {
 286             int nbRemoved = 0;
 287             ThingBuilder thingBuilder = editThing();
 288             for (RemoteopenhabItem item : items) {
 289                 Channel channel = getThing().getChannel(item.name);
 290                 if (channel != null) {
 291                     thingBuilder.withoutChannel(channel.getUID());
 292                     nbRemoved++;
 293                 }
 294             }
 295             if (nbRemoved > 0) {
 296                 updateThing(thingBuilder.build());
 297                 logger.debug("{} channels removed for the thing {} (from {} items)", nbRemoved, getThing().getUID(),
 298                         items.size());
 299             }
 300         }
 301     }
 302
 303     private void setStateOptions(List<RemoteopenhabItem> items) {
 304         for (RemoteopenhabItem item : items) {
 305             Channel channel = getThing().getChannel(item.name);
 306             RemoteopenhabStateDescription descr = item.stateDescription;
 307             List<RemoteopenhabStateOption> options = descr == null ? null : descr.options;
 308             if (channel != null && options != null && options.size() > 0) {
 309                 List<StateOption> stateOptions = new ArrayList<>();
 310                 for (RemoteopenhabStateOption option : options) {
 311                     stateOptions.add(new StateOption(option.value, option.label));
 312                 }
 313                 stateDescriptionProvider.setStateOptions(channel.getUID(), stateOptions);
 314                 logger.trace("{} options set for the channel {}", options.size(), channel.getUID());
 315             }
 316         }
 317     }
 318
 319     public void checkConnection() {
 320         logger.debug("Try the root REST API...");
 321         try {
 322             restClient.tryApi();
 323             if (restClient.getRestApiVersion() == null) {
 324                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 325                         "OH 1.x server not supported by the binding");
 326             } else if (getThing().getStatus() != ThingStatus.ONLINE) {
 327                 List<RemoteopenhabItem> items = restClient.getRemoteItems();
 328
 329                 createChannels(items, true);
 330                 setStateOptions(items);
 331                 for (RemoteopenhabItem item : items) {
 332                     updateChannelState(item.name, null, item.state);
 333                 }
 334
 335                 updateStatus(ThingStatus.ONLINE);
 336
 337                 restartStreamingUpdates();
 338             }
 339         } catch (RemoteopenhabException e) {
 340             logger.debug("{}", e.getMessage());
 341             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, e.getMessage());
 342             stopStreamingUpdates();
 343         }
 344     }
 345
 346     private void startCheckConnectionJob() {
 347         ScheduledFuture<?> localCheckConnectionJob = checkConnectionJob;
 348         if (localCheckConnectionJob == null || localCheckConnectionJob.isCancelled()) {
 349             checkConnectionJob = scheduler.scheduleWithFixedDelay(() -> {
 350                 long millisSinceLastEvent = System.currentTimeMillis() - restClient.getLastEventTimestamp();
 351                 if (millisSinceLastEvent > CONNECTION_TIMEOUT_MILLIS) {
 352                     logger.debug("Check: Maybe disconnected from streaming events, millisSinceLastEvent={}",
 353                             millisSinceLastEvent);
 354                     checkConnection();
 355                 } else {
 356                     logger.debug("Check: Receiving streaming events, millisSinceLastEvent={}", millisSinceLastEvent);
 357                 }
 358             }, 0, CONNECTION_TIMEOUT_MILLIS, TimeUnit.MILLISECONDS);
 359         }
 360     }
 361
 362     private void stopCheckConnectionJob() {
 363         ScheduledFuture<?> localCheckConnectionJob = checkConnectionJob;
 364         if (localCheckConnectionJob != null) {
 365             localCheckConnectionJob.cancel(true);
 366             checkConnectionJob = null;
 367         }
 368     }
 369
 370     private void restartStreamingUpdates() {
 371         synchronized (restClient) {
 372             stopStreamingUpdates();
 373             startStreamingUpdates();
 374         }
 375     }
 376
 377     private void startStreamingUpdates() {
 378         synchronized (restClient) {
 379             restClient.addStreamingDataListener(this);
 380             restClient.addItemsDataListener(this);
 381             restClient.start();
 382         }
 383     }
 384
 385     private void stopStreamingUpdates() {
 386         synchronized (restClient) {
 387             restClient.stop();
 388             restClient.removeStreamingDataListener(this);
 389             restClient.removeItemsDataListener(this);
 390         }
 391     }
 392
 393     public RemoteopenhabRestClient gestRestClient() {
 394         return restClient;
 395     }
 396
 397     @Override
 398     public void onConnected() {
 399         updateStatus(ThingStatus.ONLINE);
 400     }
 401
 402     @Override
 403     public void onError(String message) {
 404         updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, message);
 405     }
 406
 407     @Override
 408     public void onItemStateEvent(String itemName, String stateType, String state) {
 409         updateChannelState(itemName, stateType, state);
 410     }
 411
 412     @Override
 413     public void onItemAdded(RemoteopenhabItem item) {
 414         createChannels(List.of(item), false);
 415     }
 416
 417     @Override
 418     public void onItemRemoved(RemoteopenhabItem item) {
 419         removeChannels(List.of(item));
 420     }
 421
 422     @Override
 423     public void onItemUpdated(RemoteopenhabItem newItem, RemoteopenhabItem oldItem) {
 424         if (!newItem.type.equals(oldItem.type)) {
 425             createChannels(List.of(newItem), false);
 426         } else {
 427             logger.trace("Updated remote item {} ignored because item type {} is unchanged", newItem.name,
 428                     newItem.type);
 429         }
 430     }
 431
 432     private void updateChannelState(String itemName, @Nullable String stateType, String state) {
 433         Channel channel = getThing().getChannel(itemName);
 434         if (channel == null) {
 435             logger.trace("No channel for item {}", itemName);
 436             return;
 437         }
 438         String acceptedItemType = channel.getAcceptedItemType();
 439         if (acceptedItemType == null) {
 440             logger.trace("Channel without accepted item type for item {}", itemName);
 441             return;
 442         }
 443         if (!isLinked(channel.getUID())) {
 444             logger.trace("Unlinked channel {}", channel.getUID());
 445             return;
 446         }
 447         State channelState = null;
 448         if (stateType == null && "NULL".equals(state)) {
 449             channelState = UnDefType.NULL;
 450         } else if (stateType == null && "UNDEF".equals(state)) {
 451             channelState = UnDefType.UNDEF;
 452         } else if ("UnDef".equals(stateType)) {
 453             switch (state) {
 454                 case "NULL":
 455                     channelState = UnDefType.NULL;
 456                     break;
 457                 case "UNDEF":
 458                     channelState = UnDefType.UNDEF;
 459                     break;
 460                 default:
 461                     logger.debug("Invalid UnDef value {} for item {}", state, itemName);
 462                     break;
 463             }
 464         } else if (acceptedItemType.startsWith(CoreItemFactory.NUMBER + ":")) {
 465             // Item type Number with dimension
 466             if (checkStateType(itemName, stateType, "Quantity")) {
 467                 List<Class<? extends State>> stateTypes = Collections.singletonList(QuantityType.class);
 468                 channelState = TypeParser.parseState(stateTypes, state);
 469             }
 470         } else {
 471             switch (acceptedItemType) {
 472                 case CoreItemFactory.STRING:
 473                     if (checkStateType(itemName, stateType, "String")) {
 474                         channelState = new StringType(state);
 475                     }
 476                     break;
 477                 case CoreItemFactory.NUMBER:
 478                     if (checkStateType(itemName, stateType, "Decimal")) {
 479                         channelState = new DecimalType(state);
 480                     }
 481                     break;
 482                 case CoreItemFactory.SWITCH:
 483                     if (checkStateType(itemName, stateType, "OnOff")) {
 484                         channelState = "ON".equals(state) ? OnOffType.ON : OnOffType.OFF;
 485                     }
 486                     break;
 487                 case CoreItemFactory.CONTACT:
 488                     if (checkStateType(itemName, stateType, "OpenClosed")) {
 489                         channelState = "OPEN".equals(state) ? OpenClosedType.OPEN : OpenClosedType.CLOSED;
 490                     }
 491                     break;
 492                 case CoreItemFactory.DIMMER:
 493                     if (checkStateType(itemName, stateType, "Percent")) {
 494                         channelState = new PercentType(state);
 495                     }
 496                     break;
 497                 case CoreItemFactory.COLOR:
 498                     if (checkStateType(itemName, stateType, "HSB")) {
 499                         channelState = HSBType.valueOf(state);
 500                     }
 501                     break;
 502                 case CoreItemFactory.DATETIME:
 503                     if (checkStateType(itemName, stateType, "DateTime")) {
 504                         try {
 505                             channelState = new DateTimeType(ZonedDateTime.parse(state, FORMATTER_DATE));
 506                         } catch (DateTimeParseException e) {
 507                             logger.debug("Failed to parse date {} for item {}", state, itemName);
 508                             channelState = null;
 509                         }
 510                     }
 511                     break;
 512                 case CoreItemFactory.LOCATION:
 513                     if (checkStateType(itemName, stateType, "Point")) {
 514                         channelState = new PointType(state);
 515                     }
 516                     break;
 517                 case CoreItemFactory.IMAGE:
 518                     if (checkStateType(itemName, stateType, "Raw")) {
 519                         channelState = RawType.valueOf(state);
 520                     }
 521                     break;
 522                 case CoreItemFactory.PLAYER:
 523                     if (checkStateType(itemName, stateType, "PlayPause")) {
 524                         switch (state) {
 525                             case "PLAY":
 526                                 channelState = PlayPauseType.PLAY;
 527                                 break;
 528                             case "PAUSE":
 529                                 channelState = PlayPauseType.PAUSE;
 530                                 break;
 531                             default:
 532                                 logger.debug("Unexpected value {} for item {}", state, itemName);
 533                                 break;
 534                         }
 535                     }
 536                     break;
 537                 case CoreItemFactory.ROLLERSHUTTER:
 538                     if (checkStateType(itemName, stateType, "Percent")) {
 539                         channelState = new PercentType(state);
 540                     }
 541                     break;
 542                 default:
 543                     logger.debug("Item type {} is not yet supported", acceptedItemType);
 544                     break;
 545             }
 546         }
 547         if (channelState != null) {
 548             updateState(channel.getUID(), channelState);
 549             String channelStateStr = channelState.toFullString();
 550             logger.debug("updateState {} with {}", channel.getUID(),
 551                     channelStateStr.length() < MAX_STATE_SIZE_FOR_LOGGING ? channelStateStr
 552                             : channelStateStr.substring(0, MAX_STATE_SIZE_FOR_LOGGING) + "...");
 553         }
 554     }
 555
 556     private boolean checkStateType(String itemName, @Nullable String stateType, String expectedType) {
 557         if (stateType != null && !expectedType.equals(stateType)) {
 558             logger.debug("Unexpected value type {} for item {}", stateType, itemName);
 559             return false;
 560         } else {
 561             return true;
 562         }
 563     }
 564
 565     @Override
 566     public Collection<Class<? extends ThingHandlerService>> getServices() {
 567         return Collections.singleton(RemoteopenhabDiscoveryService.class);
 568     }
 569 }