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

   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.remoteopenhab.internal.handler;
  14
  15 import java.net.MalformedURLException;
  16 import java.net.URL;
  17 import java.time.DateTimeException;
  18 import java.time.ZonedDateTime;
  19 import java.time.format.DateTimeFormatter;
  20 import java.util.ArrayList;
  21 import java.util.Collection;
  22 import java.util.Collections;
  23 import java.util.HashMap;
  24 import java.util.List;
  25 import java.util.Map;
  26 import java.util.concurrent.ScheduledFuture;
  27 import java.util.concurrent.TimeUnit;
  28
  29 import javax.ws.rs.client.ClientBuilder;
  30
  31 import org.eclipse.jdt.annotation.NonNullByDefault;
  32 import org.eclipse.jdt.annotation.Nullable;
  33 import org.eclipse.jetty.client.HttpClient;
  34 import org.openhab.binding.remoteopenhab.internal.RemoteopenhabChannelTypeProvider;
  35 import org.openhab.binding.remoteopenhab.internal.RemoteopenhabStateDescriptionOptionProvider;
  36 import org.openhab.binding.remoteopenhab.internal.config.RemoteopenhabServerConfiguration;
  37 import org.openhab.binding.remoteopenhab.internal.data.RemoteopenhabItem;
  38 import org.openhab.binding.remoteopenhab.internal.data.RemoteopenhabStateDescription;
  39 import org.openhab.binding.remoteopenhab.internal.data.RemoteopenhabStateOption;
  40 import org.openhab.binding.remoteopenhab.internal.discovery.RemoteopenhabDiscoveryService;
  41 import org.openhab.binding.remoteopenhab.internal.exceptions.RemoteopenhabException;
  42 import org.openhab.binding.remoteopenhab.internal.listener.RemoteopenhabItemsDataListener;
  43 import org.openhab.binding.remoteopenhab.internal.listener.RemoteopenhabStreamingDataListener;
  44 import org.openhab.binding.remoteopenhab.internal.rest.RemoteopenhabRestClient;
  45 import org.openhab.core.library.CoreItemFactory;
  46 import org.openhab.core.library.types.DateTimeType;
  47 import org.openhab.core.library.types.DecimalType;
  48 import org.openhab.core.library.types.HSBType;
  49 import org.openhab.core.library.types.OnOffType;
  50 import org.openhab.core.library.types.OpenClosedType;
  51 import org.openhab.core.library.types.PercentType;
  52 import org.openhab.core.library.types.PlayPauseType;
  53 import org.openhab.core.library.types.PointType;
  54 import org.openhab.core.library.types.QuantityType;
  55 import org.openhab.core.library.types.RawType;
  56 import org.openhab.core.library.types.StringType;
  57 import org.openhab.core.thing.Bridge;
  58 import org.openhab.core.thing.Channel;
  59 import org.openhab.core.thing.ChannelUID;
  60 import org.openhab.core.thing.ThingStatus;
  61 import org.openhab.core.thing.ThingStatusDetail;
  62 import org.openhab.core.thing.binding.BaseBridgeHandler;
  63 import org.openhab.core.thing.binding.ThingHandlerService;
  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.AutoUpdatePolicy;
  67 import org.openhab.core.thing.type.ChannelKind;
  68 import org.openhab.core.thing.type.ChannelType;
  69 import org.openhab.core.thing.type.ChannelTypeBuilder;
  70 import org.openhab.core.thing.type.ChannelTypeUID;
  71 import org.openhab.core.types.Command;
  72 import org.openhab.core.types.RefreshType;
  73 import org.openhab.core.types.State;
  74 import org.openhab.core.types.StateDescriptionFragmentBuilder;
  75 import org.openhab.core.types.StateOption;
  76 import org.openhab.core.types.TypeParser;
  77 import org.openhab.core.types.UnDefType;
  78 import org.osgi.service.jaxrs.client.SseEventSourceFactory;
  79 import org.slf4j.Logger;
  80 import org.slf4j.LoggerFactory;
  81
  82 import com.google.gson.Gson;
  83
  84 /**
  85  * The {@link RemoteopenhabBridgeHandler} is responsible for handling commands and updating states
  86  * using the REST API of the remote openHAB server.
  87  *
  88  * @author Laurent Garnier - Initial contribution
  89  */
  90 @NonNullByDefault
  91 public class RemoteopenhabBridgeHandler extends BaseBridgeHandler
  92         implements RemoteopenhabStreamingDataListener, RemoteopenhabItemsDataListener {
  93
  94     private static final String DATE_FORMAT_PATTERN = "yyyy-MM-dd'T'HH:mm:ss.SSSZ";
  95     private static final DateTimeFormatter FORMATTER_DATE = DateTimeFormatter.ofPattern(DATE_FORMAT_PATTERN);
  96
  97     private static final int MAX_STATE_SIZE_FOR_LOGGING = 50;
  98
  99     private final Logger logger = LoggerFactory.getLogger(RemoteopenhabBridgeHandler.class);
 100
 101     private final HttpClient httpClientTrustingCert;
 102     private final RemoteopenhabChannelTypeProvider channelTypeProvider;
 103     private final RemoteopenhabStateDescriptionOptionProvider stateDescriptionProvider;
 104
 105     private final Object updateThingLock = new Object();
 106
 107     private @NonNullByDefault({}) RemoteopenhabServerConfiguration config;
 108
 109     private @Nullable ScheduledFuture<?> checkConnectionJob;
 110     private RemoteopenhabRestClient restClient;
 111
 112     private Map<ChannelUID, State> channelsLastStates = new HashMap<>();
 113
 114     public RemoteopenhabBridgeHandler(Bridge bridge, HttpClient httpClient, HttpClient httpClientTrustingCert,
 115             ClientBuilder clientBuilder, SseEventSourceFactory eventSourceFactory,
 116             RemoteopenhabChannelTypeProvider channelTypeProvider,
 117             RemoteopenhabStateDescriptionOptionProvider stateDescriptionProvider, final Gson jsonParser) {
 118         super(bridge);
 119         this.httpClientTrustingCert = httpClientTrustingCert;
 120         this.channelTypeProvider = channelTypeProvider;
 121         this.stateDescriptionProvider = stateDescriptionProvider;
 122         this.restClient = new RemoteopenhabRestClient(httpClient, clientBuilder, eventSourceFactory, jsonParser);
 123     }
 124
 125     @Override
 126     public void initialize() {
 127         logger.debug("Initializing remote openHAB handler for bridge {}", getThing().getUID());
 128
 129         config = getConfigAs(RemoteopenhabServerConfiguration.class);
 130
 131         String host = config.host.trim();
 132         if (host.length() == 0) {
 133             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 134                     "Undefined server address setting in the thing configuration");
 135             return;
 136         }
 137         String path = config.restPath.trim();
 138         if (path.length() == 0 || !path.startsWith("/")) {
 139             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 140                     "Invalid REST API path setting in the thing configuration");
 141             return;
 142         }
 143         URL url;
 144         try {
 145             url = new URL(config.useHttps ? "https" : "http", host, config.port, path);
 146         } catch (MalformedURLException e) {
 147             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 148                     "Invalid REST URL built from the settings in the thing configuration");
 149             return;
 150         }
 151
 152         String urlStr = url.toString();
 153         logger.debug("REST URL = {}", urlStr);
 154
 155         restClient.setRestUrl(urlStr);
 156         restClient.setAuthenticationData(config.authenticateAnyway, config.token, config.username, config.password);
 157         if (config.useHttps && config.trustedCertificate) {
 158             restClient.setHttpClient(httpClientTrustingCert);
 159             restClient.setTrustedCertificate(true);
 160         }
 161
 162         updateStatus(ThingStatus.UNKNOWN);
 163
 164         scheduler.submit(() -> checkConnection(false));
 165         if (config.accessibilityInterval > 0) {
 166             startCheckConnectionJob(config.accessibilityInterval, config.aliveInterval, config.restartIfNoActivity);
 167         }
 168     }
 169
 170     @Override
 171     public void dispose() {
 172         logger.debug("Disposing remote openHAB handler for bridge {}", getThing().getUID());
 173         stopStreamingUpdates(false);
 174         stopCheckConnectionJob();
 175         channelsLastStates.clear();
 176     }
 177
 178     @Override
 179     public void handleCommand(ChannelUID channelUID, Command command) {
 180         if (getThing().getStatus() != ThingStatus.ONLINE) {
 181             return;
 182         }
 183
 184         try {
 185             if (command instanceof RefreshType) {
 186                 String state = restClient.getRemoteItemState(channelUID.getId());
 187                 updateChannelState(channelUID.getId(), null, state, false);
 188             } else if (isLinked(channelUID)) {
 189                 restClient.sendCommandToRemoteItem(channelUID.getId(), command);
 190                 String commandStr = command.toFullString();
 191                 logger.debug("Sending command {} to remote item {} succeeded",
 192                         commandStr.length() < MAX_STATE_SIZE_FOR_LOGGING ? commandStr
 193                                 : commandStr.substring(0, MAX_STATE_SIZE_FOR_LOGGING) + "...",
 194                         channelUID.getId());
 195             }
 196         } catch (RemoteopenhabException e) {
 197             logger.debug("{}", e.getMessage());
 198         }
 199     }
 200
 201     private boolean createChannels(List<RemoteopenhabItem> items, boolean replace) {
 202         synchronized (updateThingLock) {
 203             try {
 204                 int nbGroups = 0;
 205                 int nbChannelTypesCreated = 0;
 206                 List<Channel> channels = new ArrayList<>();
 207                 for (RemoteopenhabItem item : items) {
 208                     String itemType = item.type;
 209                     boolean readOnly = false;
 210                     if ("Group".equals(itemType)) {
 211                         if (item.groupType.isEmpty()) {
 212                             // Standard groups are ignored
 213                             nbGroups++;
 214                             continue;
 215                         } else {
 216                             itemType = item.groupType;
 217                         }
 218                     } else {
 219                         if (item.stateDescription != null && item.stateDescription.readOnly) {
 220                             readOnly = true;
 221                         }
 222                     }
 223                     // Ignore pattern containing a transformation (detected by a parenthesis in the pattern)
 224                     RemoteopenhabStateDescription stateDescription = item.stateDescription;
 225                     String pattern = (stateDescription == null || stateDescription.pattern.contains("(")) ? ""
 226                             : stateDescription.pattern;
 227                     ChannelTypeUID channelTypeUID;
 228                     ChannelType channelType = channelTypeProvider.getChannelType(itemType, readOnly, pattern);
 229                     String label;
 230                     String description;
 231                     if (channelType == null) {
 232                         channelTypeUID = channelTypeProvider.buildNewChannelTypeUID(itemType);
 233                         logger.trace("Create the channel type {} for item type {} ({} and with pattern {})",
 234                                 channelTypeUID, itemType, readOnly ? "read only" : "read write", pattern);
 235                         label = String.format("Remote %s Item", itemType);
 236                         description = String.format("An item of type %s from the remote server.", itemType);
 237                         StateDescriptionFragmentBuilder stateDescriptionBuilder = StateDescriptionFragmentBuilder
 238                                 .create().withReadOnly(readOnly);
 239                         if (!pattern.isEmpty()) {
 240                             stateDescriptionBuilder = stateDescriptionBuilder.withPattern(pattern);
 241                         }
 242                         channelType = ChannelTypeBuilder.state(channelTypeUID, label, itemType)
 243                                 .withDescription(description)
 244                                 .withStateDescriptionFragment(stateDescriptionBuilder.build())
 245                                 .withAutoUpdatePolicy(AutoUpdatePolicy.VETO).build();
 246                         channelTypeProvider.addChannelType(itemType, channelType);
 247                         nbChannelTypesCreated++;
 248                     } else {
 249                         channelTypeUID = channelType.getUID();
 250                     }
 251                     ChannelUID channelUID = new ChannelUID(getThing().getUID(), item.name);
 252                     logger.trace("Create the channel {} of type {}", channelUID, channelTypeUID);
 253                     label = "Item " + item.name;
 254                     description = String.format("Item %s from the remote server.", item.name);
 255                     channels.add(ChannelBuilder.create(channelUID, itemType).withType(channelTypeUID)
 256                             .withKind(ChannelKind.STATE).withLabel(label).withDescription(description).build());
 257                 }
 258                 ThingBuilder thingBuilder = editThing();
 259                 if (replace) {
 260                     thingBuilder.withChannels(channels);
 261                     updateThing(thingBuilder.build());
 262                     logger.debug(
 263                             "{} channels defined (with {} different channel types) for the thing {} (from {} items including {} groups)",
 264                             channels.size(), nbChannelTypesCreated, getThing().getUID(), items.size(), nbGroups);
 265                 } else if (!channels.isEmpty()) {
 266                     int nbRemoved = 0;
 267                     for (Channel channel : channels) {
 268                         if (getThing().getChannel(channel.getUID()) != null) {
 269                             thingBuilder.withoutChannel(channel.getUID());
 270                             nbRemoved++;
 271                         }
 272                     }
 273                     if (nbRemoved > 0) {
 274                         logger.debug("{} channels removed for the thing {} (from {} items)", nbRemoved,
 275                                 getThing().getUID(), items.size());
 276                     }
 277                     for (Channel channel : channels) {
 278                         thingBuilder.withChannel(channel);
 279                     }
 280                     updateThing(thingBuilder.build());
 281                     if (nbGroups > 0) {
 282                         logger.debug("{} channels added for the thing {} (from {} items including {} groups)",
 283                                 channels.size(), getThing().getUID(), items.size(), nbGroups);
 284                     } else {
 285                         logger.debug("{} channels added for the thing {} (from {} items)", channels.size(),
 286                                 getThing().getUID(), items.size());
 287                     }
 288                 }
 289                 return true;
 290             } catch (IllegalArgumentException e) {
 291                 logger.warn("An error occurred while creating the channels for the server {}: {}", getThing().getUID(),
 292                         e.getMessage());
 293                 return false;
 294             }
 295         }
 296     }
 297
 298     private void removeChannels(List<RemoteopenhabItem> items) {
 299         synchronized (updateThingLock) {
 300             int nbRemoved = 0;
 301             ThingBuilder thingBuilder = editThing();
 302             for (RemoteopenhabItem item : items) {
 303                 Channel channel = getThing().getChannel(item.name);
 304                 if (channel != null) {
 305                     thingBuilder.withoutChannel(channel.getUID());
 306                     nbRemoved++;
 307                 }
 308             }
 309             if (nbRemoved > 0) {
 310                 updateThing(thingBuilder.build());
 311                 logger.debug("{} channels removed for the thing {} (from {} items)", nbRemoved, getThing().getUID(),
 312                         items.size());
 313             }
 314         }
 315     }
 316
 317     private void setStateOptions(List<RemoteopenhabItem> items) {
 318         for (RemoteopenhabItem item : items) {
 319             Channel channel = getThing().getChannel(item.name);
 320             RemoteopenhabStateDescription descr = item.stateDescription;
 321             List<RemoteopenhabStateOption> options = descr == null ? null : descr.options;
 322             if (channel != null && options != null && !options.isEmpty()) {
 323                 List<StateOption> stateOptions = new ArrayList<>();
 324                 for (RemoteopenhabStateOption option : options) {
 325                     stateOptions.add(new StateOption(option.value, option.label));
 326                 }
 327                 stateDescriptionProvider.setStateOptions(channel.getUID(), stateOptions);
 328                 logger.trace("{} options set for the channel {}", options.size(), channel.getUID());
 329             }
 330         }
 331     }
 332
 333     public void checkConnection(boolean restartSse) {
 334         logger.debug("Try the root REST API...");
 335         try {
 336             restClient.tryApi();
 337             if (restClient.getRestApiVersion() == null) {
 338                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 339                         "OH 1.x server not supported by the binding");
 340             } else if (getThing().getStatus() != ThingStatus.ONLINE) {
 341                 List<RemoteopenhabItem> items = restClient.getRemoteItems("name,type,groupType,state,stateDescription");
 342
 343                 if (createChannels(items, true)) {
 344                     setStateOptions(items);
 345                     for (RemoteopenhabItem item : items) {
 346                         updateChannelState(item.name, null, item.state, false);
 347                     }
 348
 349                     updateStatus(ThingStatus.ONLINE);
 350
 351                     restartStreamingUpdates();
 352                 } else {
 353                     updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.NONE,
 354                             "Dynamic creation of the channels for the remote server items failed");
 355                     stopStreamingUpdates();
 356                 }
 357             } else if (restartSse) {
 358                 logger.debug("The SSE connection is restarted because there was no recent event received");
 359                 restartStreamingUpdates();
 360             }
 361         } catch (RemoteopenhabException e) {
 362             logger.debug("{}", e.getMessage());
 363             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, e.getMessage());
 364             stopStreamingUpdates();
 365         }
 366     }
 367
 368     private void startCheckConnectionJob(int accessibilityInterval, int aliveInterval, boolean restartIfNoActivity) {
 369         ScheduledFuture<?> localCheckConnectionJob = checkConnectionJob;
 370         if (localCheckConnectionJob == null || localCheckConnectionJob.isCancelled()) {
 371             checkConnectionJob = scheduler.scheduleWithFixedDelay(() -> {
 372                 long millisSinceLastEvent = System.currentTimeMillis() - restClient.getLastEventTimestamp();
 373                 if (getThing().getStatus() != ThingStatus.ONLINE || aliveInterval == 0
 374                         || restClient.getLastEventTimestamp() == 0) {
 375                     logger.debug("Time to check server accessibility");
 376                     checkConnection(restartIfNoActivity && aliveInterval != 0);
 377                 } else if (millisSinceLastEvent > (aliveInterval * 60000)) {
 378                     logger.debug(
 379                             "Time to check server accessibility (maybe disconnected from streaming events, millisSinceLastEvent={})",
 380                             millisSinceLastEvent);
 381                     checkConnection(restartIfNoActivity);
 382                 } else {
 383                     logger.debug(
 384                             "Bypass server accessibility check (receiving streaming events, millisSinceLastEvent={})",
 385                             millisSinceLastEvent);
 386                 }
 387             }, accessibilityInterval, accessibilityInterval, TimeUnit.MINUTES);
 388         }
 389     }
 390
 391     private void stopCheckConnectionJob() {
 392         ScheduledFuture<?> localCheckConnectionJob = checkConnectionJob;
 393         if (localCheckConnectionJob != null) {
 394             localCheckConnectionJob.cancel(true);
 395             checkConnectionJob = null;
 396         }
 397     }
 398
 399     private void restartStreamingUpdates() {
 400         synchronized (restClient) {
 401             stopStreamingUpdates();
 402             startStreamingUpdates();
 403         }
 404     }
 405
 406     private void startStreamingUpdates() {
 407         synchronized (restClient) {
 408             restClient.addStreamingDataListener(this);
 409             restClient.addItemsDataListener(this);
 410             restClient.start();
 411         }
 412     }
 413
 414     private void stopStreamingUpdates() {
 415         stopStreamingUpdates(true);
 416     }
 417
 418     private void stopStreamingUpdates(boolean waitingForCompletion) {
 419         synchronized (restClient) {
 420             restClient.stop(waitingForCompletion);
 421             restClient.removeStreamingDataListener(this);
 422             restClient.removeItemsDataListener(this);
 423         }
 424     }
 425
 426     public RemoteopenhabRestClient gestRestClient() {
 427         return restClient;
 428     }
 429
 430     @Override
 431     public void onConnected() {
 432         updateStatus(ThingStatus.ONLINE);
 433     }
 434
 435     @Override
 436     public void onDisconnected() {
 437         updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, "Disconected from the remote server");
 438     }
 439
 440     @Override
 441     public void onError(String message) {
 442         updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, message);
 443     }
 444
 445     @Override
 446     public void onItemStateEvent(String itemName, String stateType, String state, boolean onlyIfStateChanged) {
 447         updateChannelState(itemName, stateType, state, onlyIfStateChanged);
 448     }
 449
 450     @Override
 451     public void onItemAdded(RemoteopenhabItem item) {
 452         createChannels(List.of(item), false);
 453     }
 454
 455     @Override
 456     public void onItemRemoved(RemoteopenhabItem item) {
 457         removeChannels(List.of(item));
 458     }
 459
 460     @Override
 461     public void onItemUpdated(RemoteopenhabItem newItem, RemoteopenhabItem oldItem) {
 462         if (!newItem.type.equals(oldItem.type)) {
 463             createChannels(List.of(newItem), false);
 464         } else {
 465             logger.trace("Updated remote item {} ignored because item type {} is unchanged", newItem.name,
 466                     newItem.type);
 467         }
 468     }
 469
 470     private void updateChannelState(String itemName, @Nullable String stateType, String state,
 471             boolean onlyIfStateChanged) {
 472         Channel channel = getThing().getChannel(itemName);
 473         if (channel == null) {
 474             logger.trace("No channel for item {}", itemName);
 475             return;
 476         }
 477         String acceptedItemType = channel.getAcceptedItemType();
 478         if (acceptedItemType == null) {
 479             logger.trace("Channel without accepted item type for item {}", itemName);
 480             return;
 481         }
 482         if (!isLinked(channel.getUID())) {
 483             logger.trace("Unlinked channel {}", channel.getUID());
 484             return;
 485         }
 486         State channelState = null;
 487         try {
 488             if (stateType == null && "NULL".equals(state)) {
 489                 channelState = UnDefType.NULL;
 490             } else if (stateType == null && "UNDEF".equals(state)) {
 491                 channelState = UnDefType.UNDEF;
 492             } else if ("UnDef".equals(stateType)) {
 493                 switch (state) {
 494                     case "NULL":
 495                         channelState = UnDefType.NULL;
 496                         break;
 497                     case "UNDEF":
 498                         channelState = UnDefType.UNDEF;
 499                         break;
 500                     default:
 501                         logger.debug("Invalid UnDef value {} for item {}", state, itemName);
 502                         break;
 503                 }
 504             } else if (acceptedItemType.startsWith(CoreItemFactory.NUMBER + ":")) {
 505                 // Item type Number with dimension
 506                 if (stateType == null || "Quantity".equals(stateType)) {
 507                     List<Class<? extends State>> stateTypes = Collections.singletonList(QuantityType.class);
 508                     channelState = TypeParser.parseState(stateTypes, state);
 509                 } else if ("Decimal".equals(stateType)) {
 510                     channelState = new DecimalType(state);
 511                 } else {
 512                     logger.debug("Unexpected value type {} for item {}", stateType, itemName);
 513                 }
 514             } else {
 515                 switch (acceptedItemType) {
 516                     case CoreItemFactory.STRING:
 517                         if (checkStateType(itemName, stateType, "String")) {
 518                             channelState = new StringType(state);
 519                         }
 520                         break;
 521                     case CoreItemFactory.NUMBER:
 522                         if (checkStateType(itemName, stateType, "Decimal")) {
 523                             channelState = new DecimalType(state);
 524                         }
 525                         break;
 526                     case CoreItemFactory.SWITCH:
 527                         if (checkStateType(itemName, stateType, "OnOff")) {
 528                             channelState = "ON".equals(state) ? OnOffType.ON : OnOffType.OFF;
 529                         }
 530                         break;
 531                     case CoreItemFactory.CONTACT:
 532                         if (checkStateType(itemName, stateType, "OpenClosed")) {
 533                             channelState = "OPEN".equals(state) ? OpenClosedType.OPEN : OpenClosedType.CLOSED;
 534                         }
 535                         break;
 536                     case CoreItemFactory.DIMMER:
 537                         if (checkStateType(itemName, stateType, "Percent")) {
 538                             channelState = new PercentType(state);
 539                         }
 540                         break;
 541                     case CoreItemFactory.COLOR:
 542                         if (checkStateType(itemName, stateType, "HSB")) {
 543                             channelState = HSBType.valueOf(state);
 544                         }
 545                         break;
 546                     case CoreItemFactory.DATETIME:
 547                         if (checkStateType(itemName, stateType, "DateTime")) {
 548                             channelState = new DateTimeType(ZonedDateTime.parse(state, FORMATTER_DATE));
 549                         }
 550                         break;
 551                     case CoreItemFactory.LOCATION:
 552                         if (checkStateType(itemName, stateType, "Point")) {
 553                             channelState = new PointType(state);
 554                         }
 555                         break;
 556                     case CoreItemFactory.IMAGE:
 557                         if (checkStateType(itemName, stateType, "Raw")) {
 558                             channelState = RawType.valueOf(state);
 559                         }
 560                         break;
 561                     case CoreItemFactory.PLAYER:
 562                         if (checkStateType(itemName, stateType, "PlayPause")) {
 563                             switch (state) {
 564                                 case "PLAY":
 565                                     channelState = PlayPauseType.PLAY;
 566                                     break;
 567                                 case "PAUSE":
 568                                     channelState = PlayPauseType.PAUSE;
 569                                     break;
 570                                 default:
 571                                     logger.debug("Unexpected value {} for item {}", state, itemName);
 572                                     break;
 573                             }
 574                         }
 575                         break;
 576                     case CoreItemFactory.ROLLERSHUTTER:
 577                         if (checkStateType(itemName, stateType, "Percent")) {
 578                             channelState = new PercentType(state);
 579                         }
 580                         break;
 581                     default:
 582                         logger.debug("Item type {} is not yet supported", acceptedItemType);
 583                         break;
 584                 }
 585             }
 586         } catch (IllegalArgumentException | DateTimeException e) {
 587             logger.warn("Failed to parse state \"{}\" for item {}: {}", state, itemName, e.getMessage());
 588             channelState = UnDefType.UNDEF;
 589         }
 590         if (channelState != null) {
 591             if (onlyIfStateChanged && channelState.equals(channelsLastStates.get(channel.getUID()))) {
 592                 logger.trace("ItemStateChangedEvent ignored for item {} as state is identical to the last state",
 593                         itemName);
 594                 return;
 595             }
 596             channelsLastStates.put(channel.getUID(), channelState);
 597             updateState(channel.getUID(), channelState);
 598             String channelStateStr = channelState.toFullString();
 599             logger.debug("updateState {} with {}", channel.getUID(),
 600                     channelStateStr.length() < MAX_STATE_SIZE_FOR_LOGGING ? channelStateStr
 601                             : channelStateStr.substring(0, MAX_STATE_SIZE_FOR_LOGGING) + "...");
 602         }
 603     }
 604
 605     private boolean checkStateType(String itemName, @Nullable String stateType, String expectedType) {
 606         if (stateType != null && !expectedType.equals(stateType)) {
 607             logger.debug("Unexpected value type {} for item {}", stateType, itemName);
 608             return false;
 609         } else {
 610             return true;
 611         }
 612     }
 613
 614     @Override
 615     public Collection<Class<? extends ThingHandlerService>> getServices() {
 616         return Collections.singleton(RemoteopenhabDiscoveryService.class);
 617     }
 618 }