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   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.atlona.internal.pro3;
  14
  15 import java.io.IOException;
  16 import java.util.concurrent.ScheduledFuture;
  17 import java.util.concurrent.TimeUnit;
  18 import java.util.regex.Matcher;
  19 import java.util.regex.Pattern;
  20
  21 import org.openhab.binding.atlona.internal.AtlonaHandlerCallback;
  22 import org.openhab.binding.atlona.internal.StatefulHandlerCallback;
  23 import org.openhab.binding.atlona.internal.handler.AtlonaHandler;
  24 import org.openhab.binding.atlona.internal.net.SocketChannelSession;
  25 import org.openhab.binding.atlona.internal.net.SocketSession;
  26 import org.openhab.core.library.types.DecimalType;
  27 import org.openhab.core.library.types.OnOffType;
  28 import org.openhab.core.library.types.StringType;
  29 import org.openhab.core.thing.ChannelUID;
  30 import org.openhab.core.thing.Thing;
  31 import org.openhab.core.thing.ThingStatus;
  32 import org.openhab.core.thing.ThingStatusDetail;
  33 import org.openhab.core.types.Command;
  34 import org.openhab.core.types.RefreshType;
  35 import org.openhab.core.types.State;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 /**
  40  * The {@link org.openhab.binding.atlona.internal.pro3.AtlonaPro3Handler} is responsible for handling commands, which
  41  * are sent to one of the channels.
  42  *
  43  * @author Tim Roberts - Initial contribution
  44  */
  45 public class AtlonaPro3Handler extends AtlonaHandler<AtlonaPro3Capabilities> {
  46
  47     private final Logger logger = LoggerFactory.getLogger(AtlonaPro3Handler.class);
  48
  49     /**
  50      * The {@link AtlonaPro3PortocolHandler} protocol handler
  51      */
  52     private AtlonaPro3PortocolHandler atlonaHandler;
  53
  54     /**
  55      * The {@link SocketSession} telnet session to the switch. Will be null if not connected.
  56      */
  57     private SocketSession session;
  58
  59     /**
  60      * The polling job to poll the actual state from the {@link #session}
  61      */
  62     private ScheduledFuture<?> polling;
  63
  64     /**
  65      * The retry connection event
  66      */
  67     private ScheduledFuture<?> retryConnection;
  68
  69     /**
  70      * The ping event
  71      */
  72     private ScheduledFuture<?> ping;
  73
  74     // List of all the groups patterns we recognize
  75     private static final Pattern GROUP_PRIMARY_PATTERN = Pattern.compile("^" + AtlonaPro3Constants.GROUP_PRIMARY + "$");
  76     private static final Pattern GROUP_PORT_PATTERN = Pattern
  77             .compile("^" + AtlonaPro3Constants.GROUP_PORT + "(\\d{1,2})$");
  78     private static final Pattern GROUP_MIRROR_PATTERN = Pattern
  79             .compile("^" + AtlonaPro3Constants.GROUP_MIRROR + "(\\d{1,2})$");
  80     private static final Pattern GROUP_VOLUME_PATTERN = Pattern
  81             .compile("^" + AtlonaPro3Constants.GROUP_VOLUME + "(\\d{1,2})$");
  82
  83     // List of preset commands we recognize
  84     private static final Pattern CMD_PRESETSAVE = Pattern
  85             .compile("^" + AtlonaPro3Constants.CMD_PRESETSAVE + "(\\d{1,2})$");
  86     private static final Pattern CMD_PRESETRECALL = Pattern
  87             .compile("^" + AtlonaPro3Constants.CMD_PRESETRECALL + "(\\d{1,2})$");
  88     private static final Pattern CMD_PRESETCLEAR = Pattern
  89             .compile("^" + AtlonaPro3Constants.CMD_PRESETCLEAR + "(\\d{1,2})$");
  90
  91     // List of matrix commands we recognize
  92     private static final Pattern CMD_MATRIXRESET = Pattern.compile("^" + AtlonaPro3Constants.CMD_MATRIXRESET + "$");
  93     private static final Pattern CMD_MATRIXRESETPORTS = Pattern
  94             .compile("^" + AtlonaPro3Constants.CMD_MATRIXRESETPORTS + "$");
  95     private static final Pattern CMD_MATRIXPORTALL = Pattern
  96             .compile("^" + AtlonaPro3Constants.CMD_MATRIXPORTALL + "(\\d{1,2})$");
  97
  98     /**
  99      * Constructs the handler from the {@link org.openhab.core.thing.Thing} with the number of power ports and
 100      * audio ports the switch supports.
 101      *
 102      * @param thing a non-null {@link org.openhab.core.thing.Thing} the handler is for
 103      * @param capabilities a non-null {@link org.openhab.binding.atlona.internal.pro3.AtlonaPro3Capabilities}
 104      */
 105     public AtlonaPro3Handler(Thing thing, AtlonaPro3Capabilities capabilities) {
 106         super(thing, capabilities);
 107
 108         if (thing == null) {
 109             throw new IllegalArgumentException("thing cannot be null");
 110         }
 111     }
 112
 113     /**
 114      * {@inheritDoc}
 115      *
 116      * Handles commands to specific channels. This implementation will offload much of its work to the
 117      * {@link AtlonaPro3PortocolHandler}. Basically we validate the type of command for the channel then call the
 118      * {@link AtlonaPro3PortocolHandler} to handle the actual protocol. Special use case is the {@link RefreshType}
 119      * where we call {{@link #handleRefresh(String)} to handle a refresh of the specific channel (which in turn calls
 120      * {@link AtlonaPro3PortocolHandler} to handle the actual refresh
 121      */
 122     @Override
 123     public void handleCommand(ChannelUID channelUID, Command command) {
 124         if (command instanceof RefreshType) {
 125             handleRefresh(channelUID);
 126             return;
 127         }
 128
 129         final String group = channelUID.getGroupId().toLowerCase();
 130         final String id = channelUID.getIdWithoutGroup().toLowerCase();
 131
 132         Matcher m;
 133         if ((m = GROUP_PRIMARY_PATTERN.matcher(group)).matches()) {
 134             switch (id) {
 135                 case AtlonaPro3Constants.CHANNEL_POWER:
 136                     if (command instanceof OnOffType) {
 137                         final boolean makeOn = ((OnOffType) command) == OnOffType.ON;
 138                         atlonaHandler.setPower(makeOn);
 139                     } else {
 140                         logger.debug("Received a POWER channel command with a non OnOffType: {}", command);
 141                     }
 142
 143                     break;
 144
 145                 case AtlonaPro3Constants.CHANNEL_PANELLOCK:
 146                     if (command instanceof OnOffType) {
 147                         final boolean makeOn = ((OnOffType) command) == OnOffType.ON;
 148                         atlonaHandler.setPanelLock(makeOn);
 149                     } else {
 150                         logger.debug("Received a PANELLOCK channel command with a non OnOffType: {}", command);
 151                     }
 152                     break;
 153
 154                 case AtlonaPro3Constants.CHANNEL_IRENABLE:
 155                     if (command instanceof OnOffType) {
 156                         final boolean makeOn = ((OnOffType) command) == OnOffType.ON;
 157                         atlonaHandler.setIrOn(makeOn);
 158                     } else {
 159                         logger.debug("Received an IRLOCK channel command with a non OnOffType: {}", command);
 160                     }
 161
 162                     break;
 163                 case AtlonaPro3Constants.CHANNEL_MATRIXCMDS:
 164                     if (command instanceof StringType) {
 165                         final String matrixCmd = command.toString();
 166                         Matcher cmd;
 167                         try {
 168                             if ((cmd = CMD_MATRIXRESET.matcher(matrixCmd)).matches()) {
 169                                 atlonaHandler.resetMatrix();
 170                             } else if ((cmd = CMD_MATRIXRESETPORTS.matcher(matrixCmd)).matches()) {
 171                                 atlonaHandler.resetAllPorts();
 172                             } else if ((cmd = CMD_MATRIXPORTALL.matcher(matrixCmd)).matches()) {
 173                                 if (cmd.groupCount() == 1) {
 174                                     final int portNbr = Integer.parseInt(cmd.group(1));
 175                                     atlonaHandler.setPortAll(portNbr);
 176                                 } else {
 177                                     logger.debug("Unknown matirx set port command: '{}'", matrixCmd);
 178                                 }
 179
 180                             } else {
 181                                 logger.debug("Unknown matrix command: '{}'", cmd);
 182                             }
 183                         } catch (NumberFormatException e) {
 184                             logger.debug("Could not parse the port number from the command: '{}'", matrixCmd);
 185                         }
 186                     }
 187                     break;
 188                 case AtlonaPro3Constants.CHANNEL_PRESETCMDS:
 189                     if (command instanceof StringType) {
 190                         final String presetCmd = command.toString();
 191                         Matcher cmd;
 192                         try {
 193                             if ((cmd = CMD_PRESETSAVE.matcher(presetCmd)).matches()) {
 194                                 if (cmd.groupCount() == 1) {
 195                                     final int presetNbr = Integer.parseInt(cmd.group(1));
 196                                     atlonaHandler.saveIoSettings(presetNbr);
 197                                 } else {
 198                                     logger.debug("Unknown preset save command: '{}'", presetCmd);
 199                                 }
 200                             } else if ((cmd = CMD_PRESETRECALL.matcher(presetCmd)).matches()) {
 201                                 if (cmd.groupCount() == 1) {
 202                                     final int presetNbr = Integer.parseInt(cmd.group(1));
 203                                     atlonaHandler.recallIoSettings(presetNbr);
 204                                 } else {
 205                                     logger.debug("Unknown preset recall command: '{}'", presetCmd);
 206                                 }
 207                             } else if ((cmd = CMD_PRESETCLEAR.matcher(presetCmd)).matches()) {
 208                                 if (cmd.groupCount() == 1) {
 209                                     final int presetNbr = Integer.parseInt(cmd.group(1));
 210                                     atlonaHandler.clearIoSettings(presetNbr);
 211                                 } else {
 212                                     logger.debug("Unknown preset clear command: '{}'", presetCmd);
 213                                 }
 214
 215                             } else {
 216                                 logger.debug("Unknown preset command: '{}'", cmd);
 217                             }
 218                         } catch (NumberFormatException e) {
 219                             logger.debug("Could not parse the preset number from the command: '{}'", presetCmd);
 220                         }
 221                     }
 222                     break;
 223
 224                 default:
 225                     logger.debug("Unknown/Unsupported Primary Channel: {}", channelUID.getAsString());
 226                     break;
 227             }
 228         } else if ((m = GROUP_PORT_PATTERN.matcher(group)).matches()) {
 229             if (m.groupCount() == 1) {
 230                 try {
 231                     final int portNbr = Integer.parseInt(m.group(1));
 232
 233                     switch (id) {
 234                         case AtlonaPro3Constants.CHANNEL_PORTOUTPUT:
 235                             if (command instanceof DecimalType) {
 236                                 final int inpNbr = ((DecimalType) command).intValue();
 237                                 atlonaHandler.setPortSwitch(inpNbr, portNbr);
 238                             } else {
 239                                 logger.debug("Received a PORTOUTPUT channel command with a non DecimalType: {}",
 240                                         command);
 241                             }
 242
 243                             break;
 244
 245                         case AtlonaPro3Constants.CHANNEL_PORTPOWER:
 246                             if (command instanceof OnOffType) {
 247                                 final boolean makeOn = ((OnOffType) command) == OnOffType.ON;
 248                                 atlonaHandler.setPortPower(portNbr, makeOn);
 249                             } else {
 250                                 logger.debug("Received a PORTPOWER channel command with a non OnOffType: {}", command);
 251                             }
 252                             break;
 253                         default:
 254                             logger.debug("Unknown/Unsupported Port Channel: {}", channelUID.getAsString());
 255                             break;
 256                     }
 257                 } catch (NumberFormatException e) {
 258                     logger.debug("Bad Port Channel (can't parse the port nbr): {}", channelUID.getAsString());
 259                 }
 260             }
 261         } else if ((m = GROUP_MIRROR_PATTERN.matcher(group)).matches()) {
 262             if (m.groupCount() == 1) {
 263                 try {
 264                     final int hdmiPortNbr = Integer.parseInt(m.group(1));
 265
 266                     switch (id) {
 267                         case AtlonaPro3Constants.CHANNEL_PORTMIRROR:
 268                             if (command instanceof DecimalType) {
 269                                 final int outPortNbr = ((DecimalType) command).intValue();
 270                                 if (outPortNbr <= 0) {
 271                                     atlonaHandler.removePortMirror(hdmiPortNbr);
 272                                 } else {
 273                                     atlonaHandler.setPortMirror(hdmiPortNbr, outPortNbr);
 274                                 }
 275                             } else {
 276                                 logger.debug("Received a PORTMIRROR channel command with a non DecimalType: {}",
 277                                         command);
 278                             }
 279
 280                             break;
 281                         case AtlonaPro3Constants.CHANNEL_PORTMIRRORENABLED:
 282                             if (command instanceof OnOffType) {
 283                                 if (command == OnOffType.ON) {
 284                                     final StatefulHandlerCallback callback = (StatefulHandlerCallback) atlonaHandler
 285                                             .getCallback();
 286                                     final State state = callback.getState(AtlonaPro3Constants.CHANNEL_PORTMIRROR);
 287                                     int outPortNbr = 1;
 288                                     if (state != null && state instanceof DecimalType) {
 289                                         outPortNbr = ((DecimalType) state).intValue();
 290                                     }
 291                                     atlonaHandler.setPortMirror(hdmiPortNbr, outPortNbr);
 292                                 } else {
 293                                     atlonaHandler.removePortMirror(hdmiPortNbr);
 294                                 }
 295                             } else {
 296                                 logger.debug("Received a PORTMIRROR channel command with a non DecimalType: {}",
 297                                         command);
 298                             }
 299
 300                             break;
 301                         default:
 302                             logger.debug("Unknown/Unsupported Mirror Channel: {}", channelUID.getAsString());
 303                             break;
 304                     }
 305                 } catch (NumberFormatException e) {
 306                     logger.debug("Bad Mirror Channel (can't parse the port nbr): {}", channelUID.getAsString());
 307                 }
 308             }
 309         } else if ((m = GROUP_VOLUME_PATTERN.matcher(group)).matches()) {
 310             if (m.groupCount() == 1) {
 311                 try {
 312                     final int portNbr = Integer.parseInt(m.group(1));
 313
 314                     switch (id) {
 315                         case AtlonaPro3Constants.CHANNEL_VOLUME_MUTE:
 316                             if (command instanceof OnOffType) {
 317                                 atlonaHandler.setVolumeMute(portNbr, ((OnOffType) command) == OnOffType.ON);
 318                             } else {
 319                                 logger.debug("Received a VOLUME MUTE channel command with a non OnOffType: {}",
 320                                         command);
 321                             }
 322
 323                             break;
 324                         case AtlonaPro3Constants.CHANNEL_VOLUME:
 325                             if (command instanceof DecimalType) {
 326                                 final int level = ((DecimalType) command).intValue();
 327                                 atlonaHandler.setVolume(portNbr, level);
 328                             } else {
 329                                 logger.debug("Received a VOLUME channel command with a non DecimalType: {}", command);
 330                             }
 331                             break;
 332
 333                         default:
 334                             logger.debug("Unknown/Unsupported Volume Channel: {}", channelUID.getAsString());
 335                             break;
 336                     }
 337                 } catch (NumberFormatException e) {
 338                     logger.debug("Bad Volume Channel (can't parse the port nbr): {}", channelUID.getAsString());
 339                 }
 340             }
 341         } else {
 342             logger.debug("Unknown/Unsupported Channel: {}", channelUID.getAsString());
 343         }
 344     }
 345
 346     /**
 347      * Method that handles the {@link RefreshType} command specifically. Calls the {@link AtlonaPro3PortocolHandler} to
 348      * handle the actual refresh based on the channel id.
 349      *
 350      * @param id a non-null, possibly empty channel id to refresh
 351      */
 352     private void handleRefresh(ChannelUID channelUID) {
 353         if (getThing().getStatus() != ThingStatus.ONLINE) {
 354             return;
 355         }
 356
 357         final String group = channelUID.getGroupId().toLowerCase();
 358         final String id = channelUID.getIdWithoutGroup().toLowerCase();
 359         final StatefulHandlerCallback callback = (StatefulHandlerCallback) atlonaHandler.getCallback();
 360
 361         Matcher m;
 362         if ((m = GROUP_PRIMARY_PATTERN.matcher(group)).matches()) {
 363             switch (id) {
 364                 case AtlonaPro3Constants.CHANNEL_POWER:
 365                     callback.removeState(AtlonaPro3Utilities.createChannelID(group, id));
 366                     atlonaHandler.refreshPower();
 367                     break;
 368
 369                 default:
 370                     break;
 371             }
 372
 373         } else if ((m = GROUP_PORT_PATTERN.matcher(group)).matches()) {
 374             if (m.groupCount() == 1) {
 375                 try {
 376                     final int portNbr = Integer.parseInt(m.group(1));
 377                     callback.removeState(AtlonaPro3Utilities.createChannelID(group, portNbr, id));
 378
 379                     switch (id) {
 380                         case AtlonaPro3Constants.CHANNEL_PORTOUTPUT:
 381                             atlonaHandler.refreshPortStatus(portNbr);
 382                             break;
 383
 384                         case AtlonaPro3Constants.CHANNEL_PORTPOWER:
 385                             atlonaHandler.refreshPortPower(portNbr);
 386                             break;
 387                         default:
 388                             break;
 389                     }
 390                 } catch (NumberFormatException e) {
 391                     logger.debug("Bad Port Channel (can't parse the port nbr): {}", channelUID.getAsString());
 392                 }
 393
 394             }
 395         } else if ((m = GROUP_MIRROR_PATTERN.matcher(group)).matches()) {
 396             if (m.groupCount() == 1) {
 397                 try {
 398                     final int hdmiPortNbr = Integer.parseInt(m.group(1));
 399                     callback.removeState(AtlonaPro3Utilities.createChannelID(group, hdmiPortNbr, id));
 400                     atlonaHandler.refreshPortMirror(hdmiPortNbr);
 401                 } catch (NumberFormatException e) {
 402                     logger.debug("Bad Mirror Channel (can't parse the port nbr): {}", channelUID.getAsString());
 403                 }
 404
 405             }
 406         } else if ((m = GROUP_VOLUME_PATTERN.matcher(group)).matches()) {
 407             if (m.groupCount() == 1) {
 408                 try {
 409                     final int portNbr = Integer.parseInt(m.group(1));
 410                     callback.removeState(AtlonaPro3Utilities.createChannelID(group, portNbr, id));
 411
 412                     switch (id) {
 413                         case AtlonaPro3Constants.CHANNEL_VOLUME_MUTE:
 414                             atlonaHandler.refreshVolumeMute(portNbr);
 415                             break;
 416                         case AtlonaPro3Constants.CHANNEL_VOLUME:
 417                             atlonaHandler.refreshVolumeStatus(portNbr);
 418                             break;
 419
 420                         default:
 421                             break;
 422                     }
 423                 } catch (NumberFormatException e) {
 424                     logger.debug("Bad Volume Channel (can't parse the port nbr): {}", channelUID.getAsString());
 425                 }
 426
 427             }
 428         }
 429     }
 430
 431     /**
 432      * {@inheritDoc}
 433      *
 434      * Initializes the handler. This initialization will read/validate the configuration, then will create the
 435      * {@link SocketSession}, initialize the {@link AtlonaPro3PortocolHandler} and will attempt to connect to the switch
 436      * (via {{@link #retryConnect()}.
 437      */
 438     @Override
 439     public void initialize() {
 440         final AtlonaPro3Config config = getAtlonaConfig();
 441
 442         if (config == null) {
 443             return;
 444         }
 445
 446         if (config.getIpAddress() == null || config.getIpAddress().trim().length() == 0) {
 447             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 448                     "IP Address of Atlona Pro3 is missing from configuration");
 449             return;
 450         }
 451
 452         session = new SocketChannelSession(getThing().getUID().getAsString(), config.getIpAddress(), 23);
 453         atlonaHandler = new AtlonaPro3PortocolHandler(session, config, getCapabilities(),
 454                 new StatefulHandlerCallback(new AtlonaHandlerCallback() {
 455                     @Override
 456                     public void stateChanged(String channelId, State state) {
 457                         updateState(channelId, state);
 458                     }
 459
 460                     @Override
 461                     public void statusChanged(ThingStatus status, ThingStatusDetail detail, String msg) {
 462                         updateStatus(status, detail, msg);
 463
 464                         if (status != ThingStatus.ONLINE) {
 465                             disconnect(true);
 466                         }
 467                     }
 468
 469                     @Override
 470                     public void setProperty(String propertyName, String propertyValue) {
 471                         getThing().setProperty(propertyName, propertyValue);
 472                     }
 473                 }));
 474
 475         // Try initial connection in a scheduled task
 476         this.scheduler.schedule(this::connect, 1, TimeUnit.SECONDS);
 477     }
 478
 479     /**
 480      * Attempts to connect to the switch. If successfully connect, the {@link AtlonaPro3PortocolHandler#login()} will be
 481      * called to log into the switch (if needed). Once completed, a polling job will be created to poll the switch's
 482      * actual state and a ping job to ping the server. If a connection cannot be established (or login failed), the
 483      * connection attempt will be retried later (via {@link #retryConnect()})
 484      */
 485     private void connect() {
 486         String response = "Server is offline - will try to reconnect later";
 487         try {
 488             // clear listeners to avoid any 'old' listener from handling initial messages
 489             session.clearListeners();
 490             session.connect();
 491
 492             if (this.getCapabilities().isUHDModel()) {
 493                 response = atlonaHandler.loginUHD();
 494             } else {
 495                 response = atlonaHandler.loginHD();
 496             }
 497
 498             if (response == null) {
 499                 final AtlonaPro3Config config = getAtlonaConfig();
 500                 if (config != null) {
 501                     polling = this.scheduler.scheduleWithFixedDelay(() -> {
 502                         final ThingStatus status = getThing().getStatus();
 503                         if (status == ThingStatus.ONLINE) {
 504                             if (session.isConnected()) {
 505                                 atlonaHandler.refreshAll();
 506                             } else {
 507                                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR,
 508                                         "Atlona PRO3 has disconnected. Will try to reconnect later.");
 509                             }
 510                         } else if (status == ThingStatus.OFFLINE) {
 511                             disconnect(true);
 512                         }
 513                     }, config.getPolling(), config.getPolling(), TimeUnit.SECONDS);
 514
 515                     ping = this.scheduler.scheduleWithFixedDelay(() -> {
 516                         final ThingStatus status = getThing().getStatus();
 517                         if (status == ThingStatus.ONLINE) {
 518                             if (session.isConnected()) {
 519                                 atlonaHandler.ping();
 520                             }
 521                         }
 522                     }, config.getPing(), config.getPing(), TimeUnit.SECONDS);
 523
 524                     updateStatus(ThingStatus.ONLINE);
 525                     return;
 526                 }
 527             }
 528
 529         } catch (Exception e) {
 530             // do nothing
 531         }
 532
 533         updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, response);
 534         retryConnect();
 535     }
 536
 537     /**
 538      * Attempts to disconnect from the session and will optionally retry the connection attempt. The {@link #polling}
 539      * will be cancelled, the {@link #ping} will be cancelled and both set to null then the {@link #session} will be
 540      * disconnected.
 541      *
 542      * @param retryConnection true to retry connection attempts after the disconnect
 543      */
 544     private void disconnect(boolean retryConnection) {
 545         // Cancel polling
 546         if (polling != null) {
 547             polling.cancel(true);
 548             polling = null;
 549         }
 550
 551         // Cancel ping
 552         if (ping != null) {
 553             ping.cancel(true);
 554             ping = null;
 555         }
 556
 557         if (session != null) {
 558             try {
 559                 session.disconnect();
 560             } catch (IOException e) {
 561                 // ignore - we don't care
 562             }
 563         }
 564
 565         if (retryConnection) {
 566             retryConnect();
 567         }
 568     }
 569
 570     /**
 571      * Retries the connection attempt - schedules a job in {@link AtlonaPro3Config#getRetryPolling()} seconds to call
 572      * the
 573      * {@link #connect()} method. If a retry attempt is pending, the request is ignored.
 574      */
 575     private void retryConnect() {
 576         if (retryConnection == null) {
 577             final AtlonaPro3Config config = getAtlonaConfig();
 578             if (config != null) {
 579                 logger.info("Will try to reconnect in {} seconds", config.getRetryPolling());
 580                 retryConnection = this.scheduler.schedule(() -> {
 581                     retryConnection = null;
 582                     connect();
 583                 }, config.getRetryPolling(), TimeUnit.SECONDS);
 584             }
 585         } else {
 586             logger.debug("RetryConnection called when a retry connection is pending - ignoring request");
 587         }
 588     }
 589
 590     /**
 591      * Simple gets the {@link AtlonaPro3Config} from the {@link Thing} and will set the status to offline if not found.
 592      *
 593      * @return {@link AtlonaPro3Config}
 594      */
 595     private AtlonaPro3Config getAtlonaConfig() {
 596         return getThing().getConfiguration().as(AtlonaPro3Config.class);
 597     }
 598
 599     /**
 600      * {@inheritDoc}
 601      *
 602      * Disposes of the handler. Will simply call {@link #disconnect(boolean)} to disconnect and NOT retry the
 603      * connection
 604      */
 605     @Override
 606     public void dispose() {
 607         disconnect(false);
 608     }
 609 }