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

   1 /**
   2  * Copyright (c) 2010-2023 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.hue.internal.handler;
  14
  15 import static org.openhab.binding.hue.internal.HueBindingConstants.*;
  16 import static org.openhab.core.thing.Thing.*;
  17
  18 import java.io.IOException;
  19 import java.time.Instant;
  20 import java.util.ArrayList;
  21 import java.util.Collection;
  22 import java.util.HashMap;
  23 import java.util.List;
  24 import java.util.Map;
  25 import java.util.Set;
  26 import java.util.concurrent.Callable;
  27 import java.util.concurrent.ConcurrentHashMap;
  28 import java.util.concurrent.CopyOnWriteArrayList;
  29 import java.util.concurrent.Future;
  30 import java.util.concurrent.ScheduledFuture;
  31 import java.util.concurrent.TimeUnit;
  32 import java.util.concurrent.locks.ReentrantLock;
  33 import java.util.stream.Collectors;
  34
  35 import org.eclipse.jdt.annotation.NonNullByDefault;
  36 import org.eclipse.jdt.annotation.Nullable;
  37 import org.eclipse.jetty.client.HttpClient;
  38 import org.openhab.binding.hue.internal.config.HueBridgeConfig;
  39 import org.openhab.binding.hue.internal.connection.HueBridge;
  40 import org.openhab.binding.hue.internal.connection.HueTlsTrustManagerProvider;
  41 import org.openhab.binding.hue.internal.discovery.HueDeviceDiscoveryService;
  42 import org.openhab.binding.hue.internal.dto.ApiVersionUtils;
  43 import org.openhab.binding.hue.internal.dto.Config;
  44 import org.openhab.binding.hue.internal.dto.ConfigUpdate;
  45 import org.openhab.binding.hue.internal.dto.FullConfig;
  46 import org.openhab.binding.hue.internal.dto.FullGroup;
  47 import org.openhab.binding.hue.internal.dto.FullLight;
  48 import org.openhab.binding.hue.internal.dto.FullSensor;
  49 import org.openhab.binding.hue.internal.dto.Scene;
  50 import org.openhab.binding.hue.internal.dto.State;
  51 import org.openhab.binding.hue.internal.dto.StateUpdate;
  52 import org.openhab.binding.hue.internal.exceptions.ApiException;
  53 import org.openhab.binding.hue.internal.exceptions.DeviceOffException;
  54 import org.openhab.binding.hue.internal.exceptions.EmptyResponseException;
  55 import org.openhab.binding.hue.internal.exceptions.EntityNotAvailableException;
  56 import org.openhab.binding.hue.internal.exceptions.LinkButtonException;
  57 import org.openhab.binding.hue.internal.exceptions.UnauthorizedException;
  58 import org.openhab.core.config.core.Configuration;
  59 import org.openhab.core.config.core.status.ConfigStatusMessage;
  60 import org.openhab.core.i18n.CommunicationException;
  61 import org.openhab.core.i18n.ConfigurationException;
  62 import org.openhab.core.i18n.LocaleProvider;
  63 import org.openhab.core.i18n.TranslationProvider;
  64 import org.openhab.core.io.net.http.TlsTrustManagerProvider;
  65 import org.openhab.core.library.types.HSBType;
  66 import org.openhab.core.library.types.OnOffType;
  67 import org.openhab.core.library.types.StringType;
  68 import org.openhab.core.thing.Bridge;
  69 import org.openhab.core.thing.ChannelUID;
  70 import org.openhab.core.thing.ThingStatus;
  71 import org.openhab.core.thing.ThingStatusDetail;
  72 import org.openhab.core.thing.ThingTypeUID;
  73 import org.openhab.core.thing.binding.ConfigStatusBridgeHandler;
  74 import org.openhab.core.thing.binding.ThingHandlerService;
  75 import org.openhab.core.types.Command;
  76 import org.openhab.core.types.StateOption;
  77 import org.osgi.framework.FrameworkUtil;
  78 import org.osgi.framework.ServiceRegistration;
  79 import org.slf4j.Logger;
  80 import org.slf4j.LoggerFactory;
  81
  82 /**
  83  * {@link HueBridgeHandler} is the handler for a Hue Bridge and connects it to
  84  * the framework. All {@link HueLightHandler}s use the {@link HueBridgeHandler} to execute the actual commands.
  85  *
  86  * @author Dennis Nobel - Initial contribution
  87  * @author Oliver Libutzki - Adjustments
  88  * @author Kai Kreuzer - improved state handling
  89  * @author Andre Fuechsel - implemented getFullLights(), startSearch()
  90  * @author Thomas Höfer - added thing properties
  91  * @author Stefan Bußweiler - Added new thing status handling
  92  * @author Jochen Hiller - fixed status updates, use reachable=true/false for state compare
  93  * @author Denis Dudnik - switched to internally integrated source of Jue library
  94  * @author Samuel Leisering - Added support for sensor API
  95  * @author Christoph Weitkamp - Added support for sensor API
  96  * @author Laurent Garnier - Added support for groups
  97  */
  98 @NonNullByDefault
  99 public class HueBridgeHandler extends ConfigStatusBridgeHandler implements HueClient {
 100
 101     public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Set.of(THING_TYPE_BRIDGE);
 102
 103     private static final long BYPASS_MIN_DURATION_BEFORE_CMD = 1500L;
 104     private static final long SCENE_POLLING_INTERVAL = TimeUnit.SECONDS.convert(10, TimeUnit.MINUTES);
 105
 106     private static final String DEVICE_TYPE = "openHAB";
 107
 108     private final Logger logger = LoggerFactory.getLogger(HueBridgeHandler.class);
 109     private @Nullable ServiceRegistration<?> serviceRegistration;
 110     private final HttpClient httpClient;
 111     private final HueStateDescriptionProvider stateDescriptionOptionProvider;
 112     private final TranslationProvider i18nProvider;
 113     private final LocaleProvider localeProvider;
 114
 115     private final Map<String, FullLight> lastLightStates = new ConcurrentHashMap<>();
 116     private final Map<String, FullSensor> lastSensorStates = new ConcurrentHashMap<>();
 117     private final Map<String, FullGroup> lastGroupStates = new ConcurrentHashMap<>();
 118
 119     private @Nullable HueDeviceDiscoveryService discoveryService;
 120     private final Map<String, LightStatusListener> lightStatusListeners = new ConcurrentHashMap<>();
 121     private final Map<String, SensorStatusListener> sensorStatusListeners = new ConcurrentHashMap<>();
 122     private final Map<String, GroupStatusListener> groupStatusListeners = new ConcurrentHashMap<>();
 123
 124     private List<Scene> lastScenes = new CopyOnWriteArrayList<>();
 125     private Instant lastScenesRetrieval = Instant.MIN;
 126
 127     final ReentrantLock pollingLock = new ReentrantLock();
 128
 129     abstract class PollingRunnable implements Runnable {
 130         @Override
 131         public void run() {
 132             try {
 133                 pollingLock.lock();
 134                 if (!lastBridgeConnectionState) {
 135                     // if user is not set in configuration try to create a new user on Hue Bridge
 136                     if (hueBridgeConfig.userName == null) {
 137                         hueBridge.getFullConfig();
 138                     }
 139                     lastBridgeConnectionState = tryResumeBridgeConnection();
 140                 }
 141                 if (lastBridgeConnectionState) {
 142                     doConnectedRun();
 143                     if (thing.getStatus() != ThingStatus.ONLINE) {
 144                         updateStatus(ThingStatus.ONLINE);
 145                     }
 146                 }
 147             } catch (ConfigurationException e) {
 148                 handleConfigurationFailure(e);
 149             } catch (UnauthorizedException | IllegalStateException e) {
 150                 if (isReachable(hueBridge.getIPAddress())) {
 151                     lastBridgeConnectionState = false;
 152                     if (onNotAuthenticated()) {
 153                         updateStatus(ThingStatus.ONLINE);
 154                     }
 155                 } else if (lastBridgeConnectionState || thing.getStatus() == ThingStatus.INITIALIZING) {
 156                     lastBridgeConnectionState = false;
 157                     onConnectionLost();
 158                 }
 159             } catch (EmptyResponseException e) {
 160                 // Unexpected empty response is ignored
 161                 logger.debug("{}", e.getMessage());
 162             } catch (ApiException | CommunicationException | IOException e) {
 163                 if (hueBridge != null && lastBridgeConnectionState) {
 164                     logger.debug("Connection to Hue Bridge {} lost: {}", hueBridge.getIPAddress(), e.getMessage(), e);
 165                     lastBridgeConnectionState = false;
 166                     onConnectionLost();
 167                 }
 168             } catch (RuntimeException e) {
 169                 logger.warn("An unexpected error occurred: {}", e.getMessage(), e);
 170                 lastBridgeConnectionState = false;
 171                 onConnectionLost();
 172             } finally {
 173                 pollingLock.unlock();
 174             }
 175         }
 176
 177         private boolean isReachable(String ipAddress) {
 178             try {
 179                 // note that InetAddress.isReachable is unreliable, see
 180                 // http://stackoverflow.com/questions/9922543/why-does-inetaddress-isreachable-return-false-when-i-can-ping-the-ip-address
 181                 // That's why we do an HTTP access instead
 182
 183                 // If there is no connection, this line will fail
 184                 hueBridge.authenticate("invalid");
 185             } catch (ConfigurationException | IOException e) {
 186                 return false;
 187             } catch (ApiException e) {
 188                 String message = e.getMessage();
 189                 return message != null && //
 190                         !message.contains("SocketTimeout") && //
 191                         !message.contains("ConnectException") && //
 192                         !message.contains("SocketException") && //
 193                         !message.contains("NoRouteToHostException");
 194             }
 195             return true;
 196         }
 197
 198         protected abstract void doConnectedRun() throws IOException, ApiException;
 199     }
 200
 201     private final Runnable sensorPollingRunnable = new PollingRunnable() {
 202         @Override
 203         protected void doConnectedRun() throws IOException, ApiException {
 204             Map<String, FullSensor> lastSensorStateCopy = new HashMap<>(lastSensorStates);
 205
 206             final HueDeviceDiscoveryService discovery = discoveryService;
 207
 208             for (final FullSensor sensor : hueBridge.getSensors()) {
 209                 String sensorId = sensor.getId();
 210
 211                 final SensorStatusListener sensorStatusListener = sensorStatusListeners.get(sensorId);
 212                 if (sensorStatusListener == null) {
 213                     logger.trace("Hue sensor '{}' added.", sensorId);
 214
 215                     if (discovery != null && !lastSensorStateCopy.containsKey(sensorId)) {
 216                         discovery.addSensorDiscovery(sensor);
 217                     }
 218
 219                     lastSensorStates.put(sensorId, sensor);
 220                 } else {
 221                     if (sensorStatusListener.onSensorStateChanged(sensor)) {
 222                         lastSensorStates.put(sensorId, sensor);
 223                     }
 224                 }
 225                 lastSensorStateCopy.remove(sensorId);
 226             }
 227
 228             // Check for removed sensors
 229             lastSensorStateCopy.forEach((sensorId, sensor) -> {
 230                 logger.trace("Hue sensor '{}' removed.", sensorId);
 231                 lastSensorStates.remove(sensorId);
 232
 233                 final SensorStatusListener sensorStatusListener = sensorStatusListeners.get(sensorId);
 234                 if (sensorStatusListener != null) {
 235                     sensorStatusListener.onSensorRemoved();
 236                 }
 237
 238                 if (discovery != null) {
 239                     discovery.removeSensorDiscovery(sensor);
 240                 }
 241             });
 242         }
 243     };
 244
 245     private final Runnable lightPollingRunnable = new PollingRunnable() {
 246         @Override
 247         protected void doConnectedRun() throws IOException, ApiException {
 248             updateLights();
 249             updateGroups();
 250             if (lastScenesRetrieval.isBefore(Instant.now().minusSeconds(SCENE_POLLING_INTERVAL))) {
 251                 updateScenes();
 252                 lastScenesRetrieval = Instant.now();
 253             }
 254         }
 255
 256         private void updateLights() throws IOException, ApiException {
 257             Map<String, FullLight> lastLightStateCopy = new HashMap<>(lastLightStates);
 258
 259             List<FullLight> lights;
 260             if (ApiVersionUtils.supportsFullLights(hueBridge.getVersion())) {
 261                 lights = hueBridge.getFullLights();
 262             } else {
 263                 lights = hueBridge.getFullConfig().getLights();
 264             }
 265
 266             final HueDeviceDiscoveryService discovery = discoveryService;
 267
 268             for (final FullLight fullLight : lights) {
 269                 final String lightId = fullLight.getId();
 270
 271                 final LightStatusListener lightStatusListener = lightStatusListeners.get(lightId);
 272                 if (lightStatusListener == null) {
 273                     logger.trace("Hue light '{}' added.", lightId);
 274
 275                     if (discovery != null && !lastLightStateCopy.containsKey(lightId)) {
 276                         discovery.addLightDiscovery(fullLight);
 277                     }
 278
 279                     lastLightStates.put(lightId, fullLight);
 280                 } else {
 281                     if (lightStatusListener.onLightStateChanged(fullLight)) {
 282                         lastLightStates.put(lightId, fullLight);
 283                     }
 284                 }
 285                 lastLightStateCopy.remove(lightId);
 286             }
 287
 288             // Check for removed lights
 289             lastLightStateCopy.forEach((lightId, light) -> {
 290                 logger.trace("Hue light '{}' removed.", lightId);
 291                 lastLightStates.remove(lightId);
 292
 293                 final LightStatusListener lightStatusListener = lightStatusListeners.get(lightId);
 294                 if (lightStatusListener != null) {
 295                     lightStatusListener.onLightRemoved();
 296                 }
 297
 298                 if (discovery != null) {
 299                     discovery.removeLightDiscovery(light);
 300                 }
 301             });
 302         }
 303
 304         private void updateGroups() throws IOException, ApiException {
 305             Map<String, FullGroup> lastGroupStateCopy = new HashMap<>(lastGroupStates);
 306
 307             List<FullGroup> groups = hueBridge.getGroups();
 308
 309             final HueDeviceDiscoveryService discovery = discoveryService;
 310
 311             for (final FullGroup fullGroup : groups) {
 312                 State groupState = new State();
 313                 boolean on = false;
 314                 int sumBri = 0;
 315                 int nbBri = 0;
 316                 State colorRef = null;
 317                 HSBType firstColorHsb = null;
 318                 for (String lightId : fullGroup.getLightIds()) {
 319                     FullLight light = lastLightStates.get(lightId);
 320                     if (light != null) {
 321                         final State lightState = light.getState();
 322                         logger.trace("Group {}: light {}: on {} bri {} hue {} sat {} temp {} mode {} XY {}",
 323                                 fullGroup.getName(), light.getName(), lightState.isOn(), lightState.getBrightness(),
 324                                 lightState.getHue(), lightState.getSaturation(), lightState.getColorTemperature(),
 325                                 lightState.getColorMode(), lightState.getXY());
 326                         if (lightState.isOn()) {
 327                             on = true;
 328                             sumBri += lightState.getBrightness();
 329                             nbBri++;
 330                             if (lightState.getColorMode() != null) {
 331                                 HSBType lightHsb = LightStateConverter.toHSBType(lightState);
 332                                 if (firstColorHsb == null) {
 333                                     // first color light
 334                                     firstColorHsb = lightHsb;
 335                                     colorRef = lightState;
 336                                 } else if (!lightHsb.equals(firstColorHsb)) {
 337                                     colorRef = null;
 338                                 }
 339                             }
 340                         }
 341                     }
 342                 }
 343                 groupState.setOn(on);
 344                 groupState.setBri(nbBri == 0 ? 0 : sumBri / nbBri);
 345                 if (colorRef != null) {
 346                     groupState.setColormode(colorRef.getColorMode());
 347                     groupState.setHue(colorRef.getHue());
 348                     groupState.setSaturation(colorRef.getSaturation());
 349                     groupState.setColorTemperature(colorRef.getColorTemperature());
 350                     groupState.setXY(colorRef.getXY());
 351                 }
 352                 fullGroup.setState(groupState);
 353                 logger.trace("Group {} ({}): on {} bri {} hue {} sat {} temp {} mode {} XY {}", fullGroup.getName(),
 354                         fullGroup.getType(), groupState.isOn(), groupState.getBrightness(), groupState.getHue(),
 355                         groupState.getSaturation(), groupState.getColorTemperature(), groupState.getColorMode(),
 356                         groupState.getXY());
 357
 358                 String groupId = fullGroup.getId();
 359
 360                 final GroupStatusListener groupStatusListener = groupStatusListeners.get(groupId);
 361                 if (groupStatusListener == null) {
 362                     logger.trace("Hue group '{}' ({}) added (nb lights {}).", groupId, fullGroup.getName(),
 363                             fullGroup.getLightIds().size());
 364
 365                     if (discovery != null && !lastGroupStateCopy.containsKey(groupId)) {
 366                         discovery.addGroupDiscovery(fullGroup);
 367                     }
 368
 369                     lastGroupStates.put(groupId, fullGroup);
 370                 } else {
 371                     if (groupStatusListener.onGroupStateChanged(fullGroup)) {
 372                         lastGroupStates.put(groupId, fullGroup);
 373                     }
 374                 }
 375                 lastGroupStateCopy.remove(groupId);
 376             }
 377
 378             // Check for removed groups
 379             lastGroupStateCopy.forEach((groupId, group) -> {
 380                 logger.trace("Hue group '{}' removed.", groupId);
 381                 lastGroupStates.remove(groupId);
 382
 383                 final GroupStatusListener groupStatusListener = groupStatusListeners.get(groupId);
 384                 if (groupStatusListener != null) {
 385                     groupStatusListener.onGroupRemoved();
 386                 }
 387
 388                 if (discovery != null) {
 389                     discovery.removeGroupDiscovery(group);
 390                 }
 391             });
 392         }
 393
 394         private void updateScenes() throws IOException, ApiException {
 395             lastScenes = hueBridge.getScenes();
 396             logger.trace("Scenes detected: {}", lastScenes);
 397
 398             setBridgeSceneChannelStateOptions(lastScenes, lastGroupStates);
 399             notifyGroupSceneUpdate(lastScenes);
 400         }
 401
 402         private void setBridgeSceneChannelStateOptions(List<Scene> scenes, Map<String, FullGroup> groups) {
 403             Map<String, String> groupNames = groups.entrySet().stream()
 404                     .collect(Collectors.toMap(Map.Entry::getKey, e -> e.getValue().getName()));
 405             List<StateOption> stateOptions = scenes.stream().map(scene -> scene.toStateOption(groupNames)).toList();
 406             stateDescriptionOptionProvider.setStateOptions(new ChannelUID(getThing().getUID(), CHANNEL_SCENE),
 407                     stateOptions);
 408             consoleScenesList = scenes.stream().map(scene -> "Id is \"" + scene.getId() + "\" for scene \""
 409                     + scene.toStateOption(groupNames).getLabel() + "\"").toList();
 410         }
 411     };
 412
 413     private boolean lastBridgeConnectionState = false;
 414
 415     private boolean propertiesInitializedSuccessfully = false;
 416
 417     private @Nullable Future<?> initJob;
 418     private @Nullable ScheduledFuture<?> lightPollingJob;
 419     private @Nullable ScheduledFuture<?> sensorPollingJob;
 420
 421     private @NonNullByDefault({}) HueBridge hueBridge = null;
 422     private @NonNullByDefault({}) HueBridgeConfig hueBridgeConfig = null;
 423
 424     private List<String> consoleScenesList = new ArrayList<>();
 425
 426     public HueBridgeHandler(Bridge bridge, HttpClient httpClient,
 427             HueStateDescriptionProvider stateDescriptionOptionProvider, TranslationProvider i18nProvider,
 428             LocaleProvider localeProvider) {
 429         super(bridge);
 430         this.httpClient = httpClient;
 431         this.stateDescriptionOptionProvider = stateDescriptionOptionProvider;
 432         this.i18nProvider = i18nProvider;
 433         this.localeProvider = localeProvider;
 434     }
 435
 436     @Override
 437     public Collection<Class<? extends ThingHandlerService>> getServices() {
 438         return Set.of(HueDeviceDiscoveryService.class);
 439     }
 440
 441     @Override
 442     public void handleCommand(ChannelUID channelUID, Command command) {
 443         if (CHANNEL_SCENE.equals(channelUID.getId()) && command instanceof StringType) {
 444             recallScene(command.toString());
 445         }
 446     }
 447
 448     @Override
 449     public void updateLightState(LightStatusListener listener, FullLight light, StateUpdate stateUpdate,
 450             long fadeTime) {
 451         if (hueBridge != null) {
 452             listener.setPollBypass(BYPASS_MIN_DURATION_BEFORE_CMD);
 453             hueBridge.setLightState(light, stateUpdate).thenAccept(result -> {
 454                 try {
 455                     hueBridge.handleErrors(result);
 456                     listener.setPollBypass(fadeTime);
 457                 } catch (Exception e) {
 458                     listener.unsetPollBypass();
 459                     handleLightUpdateException(listener, light, stateUpdate, fadeTime, e);
 460                 }
 461             }).exceptionally(e -> {
 462                 listener.unsetPollBypass();
 463                 handleLightUpdateException(listener, light, stateUpdate, fadeTime, e);
 464                 return null;
 465             });
 466         } else {
 467             logger.debug("No bridge connected or selected. Cannot set light state.");
 468         }
 469     }
 470
 471     @Override
 472     public void updateSensorState(FullSensor sensor, StateUpdate stateUpdate) {
 473         if (hueBridge != null) {
 474             hueBridge.setSensorState(sensor, stateUpdate).thenAccept(result -> {
 475                 try {
 476                     hueBridge.handleErrors(result);
 477                 } catch (Exception e) {
 478                     handleSensorUpdateException(sensor, e);
 479                 }
 480             }).exceptionally(e -> {
 481                 handleSensorUpdateException(sensor, e);
 482                 return null;
 483             });
 484         } else {
 485             logger.debug("No bridge connected or selected. Cannot set sensor state.");
 486         }
 487     }
 488
 489     @Override
 490     public void updateSensorConfig(FullSensor sensor, ConfigUpdate configUpdate) {
 491         if (hueBridge != null) {
 492             hueBridge.updateSensorConfig(sensor, configUpdate).thenAccept(result -> {
 493                 try {
 494                     hueBridge.handleErrors(result);
 495                 } catch (Exception e) {
 496                     handleSensorUpdateException(sensor, e);
 497                 }
 498             }).exceptionally(e -> {
 499                 handleSensorUpdateException(sensor, e);
 500                 return null;
 501             });
 502         } else {
 503             logger.debug("No bridge connected or selected. Cannot set sensor config.");
 504         }
 505     }
 506
 507     @Override
 508     public void updateGroupState(FullGroup group, StateUpdate stateUpdate, long fadeTime) {
 509         if (hueBridge != null) {
 510             setGroupPollBypass(group, BYPASS_MIN_DURATION_BEFORE_CMD);
 511             hueBridge.setGroupState(group, stateUpdate).thenAccept(result -> {
 512                 try {
 513                     hueBridge.handleErrors(result);
 514                     setGroupPollBypass(group, fadeTime);
 515                 } catch (Exception e) {
 516                     unsetGroupPollBypass(group);
 517                     handleGroupUpdateException(group, e);
 518                 }
 519             }).exceptionally(e -> {
 520                 unsetGroupPollBypass(group);
 521                 handleGroupUpdateException(group, e);
 522                 return null;
 523             });
 524         } else {
 525             logger.debug("No bridge connected or selected. Cannot set group state.");
 526         }
 527     }
 528
 529     private void setGroupPollBypass(FullGroup group, long bypassTime) {
 530         group.getLightIds().forEach((lightId) -> {
 531             final LightStatusListener listener = lightStatusListeners.get(lightId);
 532             if (listener != null) {
 533                 listener.setPollBypass(bypassTime);
 534             }
 535         });
 536     }
 537
 538     private void unsetGroupPollBypass(FullGroup group) {
 539         group.getLightIds().forEach((lightId) -> {
 540             final LightStatusListener listener = lightStatusListeners.get(lightId);
 541             if (listener != null) {
 542                 listener.unsetPollBypass();
 543             }
 544         });
 545     }
 546
 547     private void handleLightUpdateException(LightStatusListener listener, FullLight light, StateUpdate stateUpdate,
 548             long fadeTime, Throwable e) {
 549         if (e instanceof DeviceOffException) {
 550             if (stateUpdate.getColorTemperature() != null && stateUpdate.getBrightness() == null) {
 551                 // If there is only a change of the color temperature, we do not want the light
 552                 // to be turned on (i.e. change its brightness).
 553                 return;
 554             } else {
 555                 updateLightState(listener, light, LightStateConverter.toOnOffLightState(OnOffType.ON), fadeTime);
 556                 updateLightState(listener, light, stateUpdate, fadeTime);
 557             }
 558         } else if (e instanceof EntityNotAvailableException) {
 559             logger.debug("Error while accessing light: {}", e.getMessage(), e);
 560             final HueDeviceDiscoveryService discovery = discoveryService;
 561             if (discovery != null) {
 562                 discovery.removeLightDiscovery(light);
 563             }
 564             listener.onLightGone();
 565         } else {
 566             handleThingUpdateException("light", e);
 567         }
 568     }
 569
 570     private void handleSensorUpdateException(FullSensor sensor, Throwable e) {
 571         if (e instanceof EntityNotAvailableException) {
 572             logger.debug("Error while accessing sensor: {}", e.getMessage(), e);
 573             final HueDeviceDiscoveryService discovery = discoveryService;
 574             if (discovery != null) {
 575                 discovery.removeSensorDiscovery(sensor);
 576             }
 577             final SensorStatusListener listener = sensorStatusListeners.get(sensor.getId());
 578             if (listener != null) {
 579                 listener.onSensorGone();
 580             }
 581         } else {
 582             handleThingUpdateException("sensor", e);
 583         }
 584     }
 585
 586     private void handleGroupUpdateException(FullGroup group, Throwable e) {
 587         if (e instanceof EntityNotAvailableException) {
 588             logger.debug("Error while accessing group: {}", e.getMessage(), e);
 589             final HueDeviceDiscoveryService discovery = discoveryService;
 590             if (discovery != null) {
 591                 discovery.removeGroupDiscovery(group);
 592             }
 593             final GroupStatusListener listener = groupStatusListeners.get(group.getId());
 594             if (listener != null) {
 595                 listener.onGroupGone();
 596             }
 597         } else {
 598             handleThingUpdateException("group", e);
 599         }
 600     }
 601
 602     private void handleThingUpdateException(String thingType, Throwable e) {
 603         if (e instanceof IOException) {
 604             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, e.getMessage());
 605         } else if (e instanceof ApiException) {
 606             // This should not happen - if it does, it is most likely some bug that should be reported.
 607             logger.warn("Error while accessing {}: {}", thingType, e.getMessage());
 608         } else if (e instanceof IllegalStateException) {
 609             logger.trace("Error while accessing {}: {}", thingType, e.getMessage());
 610         }
 611     }
 612
 613     private void startLightPolling() {
 614         ScheduledFuture<?> job = lightPollingJob;
 615         if (job == null || job.isCancelled()) {
 616             long lightPollingInterval;
 617             int configPollingInterval = hueBridgeConfig.pollingInterval;
 618             if (configPollingInterval < 1) {
 619                 lightPollingInterval = TimeUnit.SECONDS.toSeconds(10);
 620                 logger.warn("Wrong configuration value for polling interval. Using default value: {}s",
 621                         lightPollingInterval);
 622             } else {
 623                 lightPollingInterval = configPollingInterval;
 624             }
 625             // Delay the first execution to give a chance to have all light and group things registered
 626             lightPollingJob = scheduler.scheduleWithFixedDelay(lightPollingRunnable, 3, lightPollingInterval,
 627                     TimeUnit.SECONDS);
 628         }
 629     }
 630
 631     private void stopLightPolling() {
 632         ScheduledFuture<?> job = lightPollingJob;
 633         if (job != null) {
 634             job.cancel(true);
 635         }
 636         lightPollingJob = null;
 637     }
 638
 639     private void startSensorPolling() {
 640         ScheduledFuture<?> job = sensorPollingJob;
 641         if (job == null || job.isCancelled()) {
 642             int configSensorPollingInterval = hueBridgeConfig.sensorPollingInterval;
 643             if (configSensorPollingInterval > 0) {
 644                 long sensorPollingInterval;
 645                 if (configSensorPollingInterval < 50) {
 646                     sensorPollingInterval = TimeUnit.MILLISECONDS.toMillis(500);
 647                     logger.warn("Wrong configuration value for sensor polling interval. Using default value: {}ms",
 648                             sensorPollingInterval);
 649                 } else {
 650                     sensorPollingInterval = configSensorPollingInterval;
 651                 }
 652                 // Delay the first execution to give a chance to have all sensor things registered
 653                 sensorPollingJob = scheduler.scheduleWithFixedDelay(sensorPollingRunnable, 4000, sensorPollingInterval,
 654                         TimeUnit.MILLISECONDS);
 655             }
 656         }
 657     }
 658
 659     private void stopSensorPolling() {
 660         ScheduledFuture<?> job = sensorPollingJob;
 661         if (job != null) {
 662             job.cancel(true);
 663         }
 664         sensorPollingJob = null;
 665     }
 666
 667     @Override
 668     public void dispose() {
 669         logger.debug("Disposing Hue Bridge handler ...");
 670         Future<?> job = initJob;
 671         if (job != null) {
 672             job.cancel(true);
 673         }
 674         stopLightPolling();
 675         stopSensorPolling();
 676         if (hueBridge != null) {
 677             hueBridge = null;
 678         }
 679         ServiceRegistration<?> localServiceRegistration = serviceRegistration;
 680         if (localServiceRegistration != null) {
 681             // remove trustmanager service
 682             localServiceRegistration.unregister();
 683             serviceRegistration = null;
 684         }
 685         propertiesInitializedSuccessfully = false;
 686     }
 687
 688     @Override
 689     public void initialize() {
 690         logger.debug("Initializing Hue Bridge handler ...");
 691         hueBridgeConfig = getConfigAs(HueBridgeConfig.class);
 692
 693         String ip = hueBridgeConfig.ipAddress;
 694         if (ip == null || ip.isEmpty()) {
 695             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 696                     "@text/offline.conf-error-no-ip-address");
 697         } else {
 698             if (hueBridge == null) {
 699                 hueBridge = new HueBridge(httpClient, ip, hueBridgeConfig.getPort(), hueBridgeConfig.protocol,
 700                         scheduler);
 701
 702                 updateStatus(ThingStatus.UNKNOWN);
 703
 704                 if (HueBridgeConfig.HTTPS.equals(hueBridgeConfig.protocol)) {
 705                     scheduler.submit(() -> {
 706                         // register trustmanager service
 707                         HueTlsTrustManagerProvider tlsTrustManagerProvider = new HueTlsTrustManagerProvider(
 708                                 ip + ":" + hueBridgeConfig.getPort(), hueBridgeConfig.useSelfSignedCertificate);
 709
 710                         // Check before registering that the PEM certificate can be downloaded
 711                         if (tlsTrustManagerProvider.getPEMTrustManager() == null) {
 712                             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 713                                     "@text/offline.conf-error-https-connection");
 714                             return;
 715                         }
 716
 717                         serviceRegistration = FrameworkUtil.getBundle(getClass()).getBundleContext().registerService(
 718                                 TlsTrustManagerProvider.class.getName(), tlsTrustManagerProvider, null);
 719
 720                         onUpdate();
 721                     });
 722                 } else {
 723                     onUpdate();
 724                 }
 725             } else {
 726                 onUpdate();
 727             }
 728         }
 729     }
 730
 731     public @Nullable String getUserName() {
 732         return hueBridgeConfig == null ? null : hueBridgeConfig.userName;
 733     }
 734
 735     private synchronized void onUpdate() {
 736         startLightPolling();
 737         startSensorPolling();
 738     }
 739
 740     /**
 741      * This method is called whenever the connection to the {@link HueBridge} is lost.
 742      */
 743     public void onConnectionLost() {
 744         logger.debug("Bridge connection lost. Updating thing status to OFFLINE.");
 745         updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.NONE, "@text/offline.bridge-connection-lost");
 746     }
 747
 748     /**
 749      * This method is called whenever the connection to the {@link HueBridge} is resumed.
 750      *
 751      * @throws ApiException if the physical device does not support this API call
 752      * @throws IOException if the physical device could not be reached
 753      */
 754     private void onConnectionResumed() throws IOException, ApiException {
 755         logger.debug("Bridge connection resumed.");
 756
 757         if (!propertiesInitializedSuccessfully) {
 758             FullConfig fullConfig = hueBridge.getFullConfig();
 759             Config config = fullConfig.getConfig();
 760             if (config != null) {
 761                 Map<String, String> properties = editProperties();
 762                 String serialNumber = config.getBridgeId().substring(0, 6) + config.getBridgeId().substring(10);
 763                 serialNumber = serialNumber.toLowerCase();
 764                 properties.put(PROPERTY_SERIAL_NUMBER, serialNumber);
 765                 properties.put(PROPERTY_MODEL_ID, config.getModelId());
 766                 properties.put(PROPERTY_MAC_ADDRESS, config.getMACAddress());
 767                 properties.put(PROPERTY_FIRMWARE_VERSION, config.getSoftwareVersion());
 768                 updateProperties(properties);
 769                 propertiesInitializedSuccessfully = true;
 770             }
 771         }
 772     }
 773
 774     /**
 775      * Check USER_NAME config for null. Call onConnectionResumed() otherwise.
 776      *
 777      * @return True if USER_NAME was not null.
 778      * @throws ApiException if the physical device does not support this API call
 779      * @throws IOException if the physical device could not be reached
 780      */
 781     private boolean tryResumeBridgeConnection() throws IOException, ApiException {
 782         logger.debug("Connection to Hue Bridge {} established.", hueBridge.getIPAddress());
 783         if (hueBridgeConfig.userName == null) {
 784             logger.warn(
 785                     "User name for Hue Bridge authentication not available in configuration. Setting ThingStatus to OFFLINE.");
 786             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 787                     "@text/offline.conf-error-no-username");
 788             return false;
 789         } else {
 790             onConnectionResumed();
 791             return true;
 792         }
 793     }
 794
 795     /**
 796      * This method is called whenever the connection to the {@link HueBridge} is available,
 797      * but requests are not allowed due to a missing or invalid authentication.
 798      * <p>
 799      * If there is a user name available, it attempts to re-authenticate. Otherwise new authentication credentials will
 800      * be requested from the bridge.
 801      *
 802      * @param bridge the Hue Bridge the connection is not authorized
 803      * @return returns {@code true} if re-authentication was successful, {@code false} otherwise
 804      */
 805     public boolean onNotAuthenticated() {
 806         if (hueBridge == null) {
 807             return false;
 808         }
 809         String userName = hueBridgeConfig.userName;
 810         if (userName == null) {
 811             createUser();
 812         } else {
 813             try {
 814                 hueBridge.authenticate(userName);
 815                 return true;
 816             } catch (ConfigurationException e) {
 817                 handleConfigurationFailure(e);
 818             } catch (Exception e) {
 819                 logger.trace("", e);
 820                 handleAuthenticationFailure(e, userName);
 821             }
 822         }
 823         return false;
 824     }
 825
 826     private void createUser() {
 827         try {
 828             String newUser = createUserOnPhysicalBridge();
 829             updateBridgeThingConfiguration(newUser);
 830         } catch (LinkButtonException ex) {
 831             handleLinkButtonNotPressed(ex);
 832         } catch (Exception ex) {
 833             handleExceptionWhileCreatingUser(ex);
 834         }
 835     }
 836
 837     private String createUserOnPhysicalBridge() throws IOException, ApiException {
 838         logger.info("Creating new user on Hue Bridge {} - please press the pairing button on the bridge.",
 839                 hueBridgeConfig.ipAddress);
 840         String userName = hueBridge.link(DEVICE_TYPE);
 841         logger.info("User has been successfully added to Hue Bridge.");
 842         return userName;
 843     }
 844
 845     private void updateBridgeThingConfiguration(String userName) {
 846         Configuration config = editConfiguration();
 847         config.put(USER_NAME, userName);
 848         try {
 849             updateConfiguration(config);
 850             logger.debug("Updated configuration parameter '{}'", USER_NAME);
 851             hueBridgeConfig = getConfigAs(HueBridgeConfig.class);
 852         } catch (IllegalStateException e) {
 853             logger.trace("Configuration update failed.", e);
 854             logger.warn("Unable to update configuration of Hue Bridge.");
 855             logger.warn("Please configure the user name manually.");
 856         }
 857     }
 858
 859     private void handleConfigurationFailure(ConfigurationException ex) {
 860         logger.warn(
 861                 "Invalid certificate for secured connection. You might want to enable the \"Use Self-Signed Certificate\" configuration.");
 862         updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, ex.getRawMessage());
 863     }
 864
 865     private void handleAuthenticationFailure(Exception ex, String userName) {
 866         logger.warn("User is not authenticated on Hue Bridge {}", hueBridgeConfig.ipAddress);
 867         logger.warn("Please configure a valid user or remove user from configuration to generate a new one.");
 868         updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 869                 "@text/offline.conf-error-invalid-username");
 870     }
 871
 872     private void handleLinkButtonNotPressed(LinkButtonException ex) {
 873         logger.debug("Failed creating new user on Hue Bridge: {}", ex.getMessage());
 874         updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 875                 "@text/offline.conf-error-press-pairing-button");
 876     }
 877
 878     private void handleExceptionWhileCreatingUser(Exception ex) {
 879         logger.warn("Failed creating new user on Hue Bridge", ex);
 880         updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 881                 "@text/offline.conf-error-creation-username");
 882     }
 883
 884     @Override
 885     public boolean registerDiscoveryListener(HueDeviceDiscoveryService listener) {
 886         if (discoveryService == null) {
 887             discoveryService = listener;
 888             getFullLights().forEach(listener::addLightDiscovery);
 889             getFullSensors().forEach(listener::addSensorDiscovery);
 890             getFullGroups().forEach(listener::addGroupDiscovery);
 891             return true;
 892         }
 893
 894         return false;
 895     }
 896
 897     @Override
 898     public boolean unregisterDiscoveryListener() {
 899         if (discoveryService != null) {
 900             discoveryService = null;
 901             return true;
 902         }
 903
 904         return false;
 905     }
 906
 907     @Override
 908     public boolean registerLightStatusListener(LightStatusListener lightStatusListener) {
 909         final String lightId = lightStatusListener.getLightId();
 910         if (!lightStatusListeners.containsKey(lightId)) {
 911             lightStatusListeners.put(lightId, lightStatusListener);
 912             final FullLight lastLightState = lastLightStates.get(lightId);
 913             if (lastLightState != null) {
 914                 lightStatusListener.onLightAdded(lastLightState);
 915             }
 916
 917             return true;
 918         }
 919         return false;
 920     }
 921
 922     @Override
 923     public boolean unregisterLightStatusListener(LightStatusListener lightStatusListener) {
 924         return lightStatusListeners.remove(lightStatusListener.getLightId()) != null;
 925     }
 926
 927     @Override
 928     public boolean registerSensorStatusListener(SensorStatusListener sensorStatusListener) {
 929         final String sensorId = sensorStatusListener.getSensorId();
 930         if (!sensorStatusListeners.containsKey(sensorId)) {
 931             sensorStatusListeners.put(sensorId, sensorStatusListener);
 932             final FullSensor lastSensorState = lastSensorStates.get(sensorId);
 933             if (lastSensorState != null) {
 934                 sensorStatusListener.onSensorAdded(lastSensorState);
 935             }
 936             return true;
 937         }
 938
 939         return false;
 940     }
 941
 942     @Override
 943     public boolean unregisterSensorStatusListener(SensorStatusListener sensorStatusListener) {
 944         return sensorStatusListeners.remove(sensorStatusListener.getSensorId()) != null;
 945     }
 946
 947     @Override
 948     public boolean registerGroupStatusListener(GroupStatusListener groupStatusListener) {
 949         final String groupId = groupStatusListener.getGroupId();
 950         if (!groupStatusListeners.containsKey(groupId)) {
 951             groupStatusListeners.put(groupId, groupStatusListener);
 952             final FullGroup lastGroupState = lastGroupStates.get(groupId);
 953             if (lastGroupState != null) {
 954                 groupStatusListener.onGroupAdded(lastGroupState);
 955                 if (!lastScenes.isEmpty()) {
 956                     groupStatusListener.onScenesUpdated(lastScenes);
 957                 }
 958             }
 959             return true;
 960         }
 961
 962         return false;
 963     }
 964
 965     @Override
 966     public boolean unregisterGroupStatusListener(GroupStatusListener groupStatusListener) {
 967         return groupStatusListeners.remove(groupStatusListener.getGroupId()) != null;
 968     }
 969
 970     /**
 971      * Recall scene to all lights that belong to the scene.
 972      *
 973      * @param id the ID of the scene to activate
 974      */
 975     @Override
 976     public void recallScene(String id) {
 977         if (hueBridge != null) {
 978             hueBridge.recallScene(id).thenAccept(result -> {
 979                 try {
 980                     hueBridge.handleErrors(result);
 981                 } catch (Exception e) {
 982                     logger.debug("Error while recalling scene: {}", e.getMessage());
 983                 }
 984             }).exceptionally(e -> {
 985                 logger.debug("Error while recalling scene: {}", e.getMessage());
 986                 return null;
 987             });
 988         } else {
 989             logger.debug("No bridge connected or selected. Cannot activate scene.");
 990         }
 991     }
 992
 993     @Override
 994     public @Nullable FullLight getLightById(String lightId) {
 995         return lastLightStates.get(lightId);
 996     }
 997
 998     @Override
 999     public @Nullable FullSensor getSensorById(String sensorId) {
1000         return lastSensorStates.get(sensorId);
1001     }
1002
1003     @Override
1004     public @Nullable FullGroup getGroupById(String groupId) {
1005         return lastGroupStates.get(groupId);
1006     }
1007
1008     public List<FullLight> getFullLights() {
1009         List<FullLight> ret = withReAuthentication("search for new lights", () -> {
1010             return hueBridge.getFullLights();
1011         });
1012         return ret != null ? ret : List.of();
1013     }
1014
1015     public List<FullSensor> getFullSensors() {
1016         List<FullSensor> ret = withReAuthentication("search for new sensors", () -> {
1017             return hueBridge.getSensors();
1018         });
1019         return ret != null ? ret : List.of();
1020     }
1021
1022     public List<FullGroup> getFullGroups() {
1023         List<FullGroup> ret = withReAuthentication("search for new groups", () -> {
1024             return hueBridge.getGroups();
1025         });
1026         return ret != null ? ret : List.of();
1027     }
1028
1029     public void startSearch() {
1030         withReAuthentication("start search mode", () -> {
1031             hueBridge.startSearch();
1032             return null;
1033         });
1034     }
1035
1036     public void startSearch(List<String> serialNumbers) {
1037         withReAuthentication("start search mode", () -> {
1038             hueBridge.startSearch(serialNumbers);
1039             return null;
1040         });
1041     }
1042
1043     private @Nullable <T> T withReAuthentication(String taskDescription, Callable<T> runnable) {
1044         if (hueBridge != null) {
1045             try {
1046                 try {
1047                     return runnable.call();
1048                 } catch (UnauthorizedException | IllegalStateException e) {
1049                     lastBridgeConnectionState = false;
1050                     if (onNotAuthenticated()) {
1051                         return runnable.call();
1052                     }
1053                 }
1054             } catch (Exception e) {
1055                 logger.debug("Bridge cannot {}.", taskDescription, e);
1056             }
1057         }
1058         return null;
1059     }
1060
1061     private void notifyGroupSceneUpdate(List<Scene> scenes) {
1062         groupStatusListeners.forEach((groupId, listener) -> listener.onScenesUpdated(scenes));
1063     }
1064
1065     public List<String> listScenesForConsole() {
1066         return consoleScenesList;
1067     }
1068
1069     @Override
1070     public Collection<ConfigStatusMessage> getConfigStatus() {
1071         // The bridge IP address to be used for checks
1072         // Check whether an IP address is provided
1073         hueBridgeConfig = getConfigAs(HueBridgeConfig.class);
1074
1075         String ip = hueBridgeConfig.ipAddress;
1076         if (ip == null || ip.isEmpty()) {
1077             return List.of(ConfigStatusMessage.Builder.error(HOST).withMessageKeySuffix(IP_ADDRESS_MISSING)
1078                     .withArguments(HOST).build());
1079         } else {
1080             return List.of();
1081         }
1082     }
1083
1084     public TranslationProvider getI18nProvider() {
1085         return i18nProvider;
1086     }
1087
1088     public LocaleProvider getLocaleProvider() {
1089         return localeProvider;
1090     }
1091 }