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   1 /**
   2  * Copyright (c) 2010-2021 Contributors to the openHAB project
   3  *
   4  * See the NOTICE file(s) distributed with this work for additional
   5  * information.
   6  *
   7  * This program and the accompanying materials are made available under the
   8  * terms of the Eclipse Public License 2.0 which is available at
   9  * http://www.eclipse.org/legal/epl-2.0
  10  *
  11  * SPDX-License-Identifier: EPL-2.0
  12  */
  13 package org.openhab.binding.yamahamusiccast.internal;
  14
  15 import static org.openhab.binding.yamahamusiccast.internal.YamahaMusiccastBindingConstants.*;
  16
  17 import java.io.ByteArrayInputStream;
  18 import java.io.IOException;
  19 import java.io.InputStream;
  20 import java.nio.charset.StandardCharsets;
  21 import java.util.ArrayList;
  22 import java.util.List;
  23 import java.util.Objects;
  24 import java.util.Properties;
  25 import java.util.Random;
  26 import java.util.UUID;
  27 import java.util.concurrent.ScheduledFuture;
  28 import java.util.concurrent.TimeUnit;
  29
  30 import org.eclipse.jdt.annotation.NonNullByDefault;
  31 import org.eclipse.jdt.annotation.Nullable;
  32 import org.openhab.binding.yamahamusiccast.internal.dto.DeviceInfo;
  33 import org.openhab.binding.yamahamusiccast.internal.dto.DistributionInfo;
  34 import org.openhab.binding.yamahamusiccast.internal.dto.Features;
  35 import org.openhab.binding.yamahamusiccast.internal.dto.PlayInfo;
  36 import org.openhab.binding.yamahamusiccast.internal.dto.PresetInfo;
  37 import org.openhab.binding.yamahamusiccast.internal.dto.RecentInfo;
  38 import org.openhab.binding.yamahamusiccast.internal.dto.Response;
  39 import org.openhab.binding.yamahamusiccast.internal.dto.Status;
  40 import org.openhab.binding.yamahamusiccast.internal.dto.UdpMessage;
  41 import org.openhab.core.io.net.http.HttpUtil;
  42 import org.openhab.core.library.types.DecimalType;
  43 import org.openhab.core.library.types.NextPreviousType;
  44 import org.openhab.core.library.types.OnOffType;
  45 import org.openhab.core.library.types.PercentType;
  46 import org.openhab.core.library.types.PlayPauseType;
  47 import org.openhab.core.library.types.RewindFastforwardType;
  48 import org.openhab.core.library.types.StringType;
  49 import org.openhab.core.thing.Bridge;
  50 import org.openhab.core.thing.Channel;
  51 import org.openhab.core.thing.ChannelUID;
  52 import org.openhab.core.thing.Thing;
  53 import org.openhab.core.thing.ThingStatus;
  54 import org.openhab.core.thing.ThingStatusDetail;
  55 import org.openhab.core.thing.binding.BaseThingHandler;
  56 import org.openhab.core.thing.binding.builder.ChannelBuilder;
  57 import org.openhab.core.thing.binding.builder.ThingBuilder;
  58 import org.openhab.core.thing.type.ChannelTypeUID;
  59 import org.openhab.core.types.Command;
  60 import org.openhab.core.types.RefreshType;
  61 import org.openhab.core.types.StateOption;
  62 import org.slf4j.Logger;
  63 import org.slf4j.LoggerFactory;
  64
  65 import com.google.gson.Gson;
  66 import com.google.gson.JsonElement;
  67 import com.google.gson.JsonObject;
  68
  69 /**
  70  * The {@link YamahaMusiccastHandler} is responsible for handling commands, which are
  71  * sent to one of the channels.
  72  *
  73  * @author Lennert Coopman - Initial contribution
  74  */
  75 @NonNullByDefault
  76 public class YamahaMusiccastHandler extends BaseThingHandler {
  77     private Gson gson = new Gson();
  78     private Logger logger = LoggerFactory.getLogger(YamahaMusiccastHandler.class);
  79     private @Nullable ScheduledFuture<?> generalHousekeepingTask;
  80     private @Nullable String httpResponse;
  81     private @Nullable String tmpString = "";
  82     private int volumePercent = 0;
  83     private int volumeAbsValue = 0;
  84     private @Nullable String responseCode = "";
  85     private int volumeState = 0;
  86     private int maxVolumeState = 0;
  87     private @Nullable String inputState = "";
  88     private @Nullable String soundProgramState = "";
  89     private int sleepState = 0;
  90     private @Nullable String artistState = "";
  91     private @Nullable String trackState = "";
  92     private @Nullable String albumState = "";
  93     private @Nullable String repeatState = "";
  94     private @Nullable String shuffleState = "";
  95     private int playTimeState = 0;
  96     private int totalTimeState = 0;
  97     private @Nullable String zone = "main";
  98     private String channelWithoutGroup = "";
  99     private @Nullable String thingLabel = "";
 100     private @Nullable String mclinkSetupServer = "";
 101     private @Nullable String mclinkSetupZone = "";
 102     private String url = "";
 103     private String json = "";
 104     private String action = "";
 105     private int zoneNum = 0;
 106     private @Nullable String groupId = "";
 107     private @Nullable String host;
 108     public @Nullable String deviceId = "";
 109
 110     private YamahaMusiccastStateDescriptionProvider stateDescriptionProvider;
 111
 112     public YamahaMusiccastHandler(Thing thing, YamahaMusiccastStateDescriptionProvider stateDescriptionProvider) {
 113         super(thing);
 114         this.stateDescriptionProvider = stateDescriptionProvider;
 115     }
 116
 117     @Override
 118     public void handleCommand(ChannelUID channelUID, Command command) {
 119         String localValueToCheck = "";
 120         String localRole = "";
 121         boolean localSyncVolume;
 122         String localDefaultAfterMCLink = "";
 123         String localRoleSelectedThing = "";
 124         if (command != RefreshType.REFRESH) {
 125             logger.trace("Handling command {} for channel {}", command, channelUID);
 126             channelWithoutGroup = channelUID.getIdWithoutGroup();
 127             zone = channelUID.getGroupId();
 128             DistributionInfo distributioninfo = new DistributionInfo();
 129             Response response = new Response();
 130             switch (channelWithoutGroup) {
 131                 case CHANNEL_POWER:
 132                     if (command == OnOffType.ON) {
 133                         httpResponse = setPower("on", zone, this.host);
 134                         response = gson.fromJson(httpResponse, Response.class);
 135                         if (response != null) {
 136                             localValueToCheck = response.getResponseCode();
 137                             if (!"0".equals(localValueToCheck)) {
 138                                 updateState(channelUID, OnOffType.OFF);
 139                             }
 140                         }
 141                         // check on scheduler task for UDP events
 142                         ScheduledFuture<?> localGeneralHousekeepingTask = generalHousekeepingTask;
 143                         if (localGeneralHousekeepingTask == null) {
 144                             logger.trace("YXC - No scheduler task found!");
 145                             generalHousekeepingTask = scheduler.scheduleWithFixedDelay(this::generalHousekeeping, 5,
 146                                     300, TimeUnit.SECONDS);
 147
 148                         } else {
 149                             logger.trace("Scheduler task found!");
 150                         }
 151
 152                     } else if (command == OnOffType.OFF) {
 153                         httpResponse = setPower("standby", zone, this.host);
 154                         response = gson.fromJson(httpResponse, Response.class);
 155                         powerOffCleanup();
 156                         if (response != null) {
 157                             localValueToCheck = response.getResponseCode();
 158                             if (!"0".equals(localValueToCheck)) {
 159                                 updateState(channelUID, OnOffType.ON);
 160                             }
 161                         }
 162                     }
 163                     break;
 164                 case CHANNEL_MUTE:
 165                     if (command == OnOffType.ON) {
 166                         httpResponse = setMute("true", zone, this.host);
 167                         response = gson.fromJson(httpResponse, Response.class);
 168                         if (response != null) {
 169                             localValueToCheck = response.getResponseCode();
 170                             if (!"0".equals(localValueToCheck)) {
 171                                 updateState(channelUID, OnOffType.OFF);
 172                             }
 173                         }
 174                     } else if (command == OnOffType.OFF) {
 175                         httpResponse = setMute("false", zone, this.host);
 176                         response = gson.fromJson(httpResponse, Response.class);
 177                         if (response != null) {
 178                             localValueToCheck = response.getResponseCode();
 179                             if (!"0".equals(localValueToCheck)) {
 180                                 updateState(channelUID, OnOffType.ON);
 181                             }
 182                         }
 183                     }
 184                     break;
 185                 case CHANNEL_VOLUME:
 186                     volumePercent = Integer.parseInt(command.toString().replace(".0", ""));
 187                     volumeAbsValue = (maxVolumeState * volumePercent) / 100;
 188                     setVolume(volumeAbsValue, zone, this.host);
 189                     localSyncVolume = Boolean.parseBoolean(getThing().getConfiguration().get("syncVolume").toString());
 190                     if (localSyncVolume == Boolean.TRUE) {
 191                         tmpString = getDistributionInfo(this.host);
 192                         distributioninfo = gson.fromJson(tmpString, DistributionInfo.class);
 193                         if (distributioninfo != null) {
 194                             localRole = distributioninfo.getRole();
 195                             if ("server".equals(localRole)) {
 196                                 for (JsonElement ip : distributioninfo.getClientList()) {
 197                                     JsonObject clientObject = ip.getAsJsonObject();
 198                                     setVolumeLinkedDevice(volumePercent, zone,
 199                                             clientObject.get("ip_address").getAsString());
 200                                 }
 201                             }
 202                         }
 203                     } // END config.syncVolume
 204                     break;
 205                 case CHANNEL_VOLUMEABS:
 206                     volumeAbsValue = Integer.parseInt(command.toString().replace(".0", ""));
 207                     volumePercent = (volumeAbsValue / maxVolumeState) * 100;
 208                     setVolume(volumeAbsValue, zone, this.host);
 209                     localSyncVolume = Boolean.parseBoolean(getThing().getConfiguration().get("syncVolume").toString());
 210                     if (localSyncVolume == Boolean.TRUE) {
 211                         tmpString = getDistributionInfo(this.host);
 212                         distributioninfo = gson.fromJson(tmpString, DistributionInfo.class);
 213                         if (distributioninfo != null) {
 214                             localRole = distributioninfo.getRole();
 215                             if ("server".equals(localRole)) {
 216                                 for (JsonElement ip : distributioninfo.getClientList()) {
 217                                     JsonObject clientObject = ip.getAsJsonObject();
 218                                     setVolumeLinkedDevice(volumePercent, zone,
 219                                             clientObject.get("ip_address").getAsString());
 220                                 }
 221                             }
 222                         }
 223                     }
 224                     break;
 225                 case CHANNEL_INPUT:
 226                     // if it is a client, disconnect it first.
 227                     tmpString = getDistributionInfo(this.host);
 228                     distributioninfo = gson.fromJson(tmpString, DistributionInfo.class);
 229                     if (distributioninfo != null) {
 230                         localRole = distributioninfo.getRole();
 231                         if ("client".equals(localRole)) {
 232                             json = "{\"group_id\":\"\"}";
 233                             httpResponse = setClientServerInfo(this.host, json, "setClientInfo");
 234                         }
 235                     }
 236                     setInput(command.toString(), zone, this.host);
 237                     break;
 238                 case CHANNEL_SOUNDPROGRAM:
 239                     setSoundProgram(command.toString(), zone, this.host);
 240                     break;
 241                 case CHANNEL_SELECTPRESET:
 242                     setPreset(command.toString(), zone, this.host);
 243                     break;
 244                 case CHANNEL_PLAYER:
 245                     if (command.equals(PlayPauseType.PLAY)) {
 246                         setPlayback("play", this.host);
 247                     } else if (command.equals(PlayPauseType.PAUSE)) {
 248                         setPlayback("pause", this.host);
 249                     } else if (command.equals(NextPreviousType.NEXT)) {
 250                         setPlayback("next", this.host);
 251                     } else if (command.equals(NextPreviousType.PREVIOUS)) {
 252                         setPlayback("previous", this.host);
 253                     } else if (command.equals(RewindFastforwardType.REWIND)) {
 254                         setPlayback("fast_reverse_start", this.host);
 255                     } else if (command.equals(RewindFastforwardType.FASTFORWARD)) {
 256                         setPlayback("fast_forward_end", this.host);
 257                     }
 258                     break;
 259                 case CHANNEL_SLEEP:
 260                     setSleep(command.toString(), zone, this.host);
 261                     break;
 262                 case CHANNEL_MCLINKSTATUS:
 263                     action = "";
 264                     json = "";
 265                     tmpString = getDistributionInfo(this.host);
 266                     distributioninfo = gson.fromJson(tmpString, DistributionInfo.class);
 267                     if (distributioninfo != null) {
 268                         responseCode = distributioninfo.getResponseCode();
 269                         localRole = distributioninfo.getRole();
 270                         if (command.toString().equals("")) {
 271                             action = "unlink";
 272                             groupId = distributioninfo.getGroupId();
 273                         } else if (command.toString().contains("***")) {
 274                             action = "link";
 275                             String[] parts = command.toString().split("\\*\\*\\*");
 276                             if (parts.length > 1) {
 277                                 mclinkSetupServer = parts[0];
 278                                 mclinkSetupZone = parts[1];
 279                                 tmpString = getDistributionInfo(mclinkSetupServer);
 280                                 distributioninfo = gson.fromJson(tmpString, DistributionInfo.class);
 281                                 if (distributioninfo != null) {
 282                                     responseCode = distributioninfo.getResponseCode();
 283                                     localRoleSelectedThing = distributioninfo.getRole();
 284                                     groupId = distributioninfo.getGroupId();
 285                                     if (localRoleSelectedThing != null) {
 286                                         if ("server".equals(localRoleSelectedThing)) {
 287                                             groupId = distributioninfo.getGroupId();
 288                                         } else if ("client".equals(localRoleSelectedThing)) {
 289                                             groupId = "";
 290                                         } else if ("none".equals(localRoleSelectedThing)) {
 291                                             groupId = generateGroupId();
 292                                         }
 293                                     }
 294                                 }
 295                             }
 296                         }
 297
 298                         if ("unlink".equals(action)) {
 299                             json = "{\"group_id\":\"\"}";
 300                             if (localRole != null) {
 301                                 if ("server".equals(localRole)) {
 302                                     httpResponse = setClientServerInfo(this.host, json, "setServerInfo");
 303                                     // Set GroupId = "" for linked clients
 304                                     if (distributioninfo != null) {
 305                                         for (JsonElement ip : distributioninfo.getClientList()) {
 306                                             JsonObject clientObject = ip.getAsJsonObject();
 307                                             setClientServerInfo(clientObject.get("ip_address").getAsString(), json,
 308                                                     "setClientInfo");
 309                                         }
 310                                     }
 311                                 } else if ("client".equals(localRole)) {
 312                                     mclinkSetupServer = connectedServer();
 313                                     // Step 1. empty group on client
 314                                     httpResponse = setClientServerInfo(this.host, json, "setClientInfo");
 315                                     // empty zone to respect defaults
 316                                     if (!"".equals(mclinkSetupServer)) {
 317                                         // Step 2. remove client from server
 318                                         json = "{\"group_id\":\"" + groupId
 319                                                 + "\", \"type\":\"remove\", \"client_list\":[\"" + this.host + "\"]}";
 320                                         httpResponse = setClientServerInfo(mclinkSetupServer, json, "setServerInfo");
 321                                         // Step 3. reflect changes to master
 322                                         httpResponse = startDistribution(mclinkSetupServer);
 323                                         localDefaultAfterMCLink = getThing().getConfiguration()
 324                                                 .get("defaultAfterMCLink").toString();
 325                                         httpResponse = setInput(localDefaultAfterMCLink.toString(), zone, this.host);
 326                                     } else if ("".equals(mclinkSetupServer)) {
 327                                         // fallback in case client is removed from group by ending group on server side
 328                                         localDefaultAfterMCLink = getThing().getConfiguration()
 329                                                 .get("defaultAfterMCLink").toString();
 330                                         httpResponse = setInput(localDefaultAfterMCLink.toString(), zone, this.host);
 331                                     }
 332                                 }
 333                             }
 334                         } else if ("link".equals(action)) {
 335                             if (localRole != null) {
 336                                 if ("none".equals(localRole)) {
 337                                     json = "{\"group_id\":\"" + groupId + "\", \"zone\":\"" + mclinkSetupZone
 338                                             + "\", \"type\":\"add\", \"client_list\":[\"" + this.host + "\"]}";
 339                                     logger.trace("setServerInfo json: {}", json);
 340                                     httpResponse = setClientServerInfo(mclinkSetupServer, json, "setServerInfo");
 341                                     // All zones of Model are required for MC Link
 342                                     tmpString = "";
 343                                     for (int i = 1; i <= zoneNum; i++) {
 344                                         switch (i) {
 345                                             case 1:
 346                                                 tmpString = "\"main\"";
 347                                                 break;
 348                                             case 2:
 349                                                 tmpString = tmpString + ", \"zone2\"";
 350                                                 break;
 351                                             case 3:
 352                                                 tmpString = tmpString + ", \"zone3\"";
 353                                                 break;
 354                                             case 4:
 355                                                 tmpString = tmpString + ", \"zone4\"";
 356                                                 break;
 357                                         }
 358                                     }
 359                                     json = "{\"group_id\":\"" + groupId + "\", \"zone\":[" + tmpString + "]}";
 360                                     logger.trace("setClientInfo json: {}", json);
 361                                     httpResponse = setClientServerInfo(this.host, json, "setClientInfo");
 362                                     httpResponse = startDistribution(mclinkSetupServer);
 363                                 }
 364                             }
 365                         }
 366                     }
 367                     updateMCLinkStatus();
 368                     break;
 369                 case CHANNEL_RECALLSCENE:
 370                     recallScene(command.toString(), zone, this.host);
 371                     break;
 372                 case CHANNEL_REPEAT:
 373                     setRepeat(command.toString(), this.host);
 374                     break;
 375                 case CHANNEL_SHUFFLE:
 376                     setShuffle(command.toString(), this.host);
 377                     break;
 378             } // END Switch Channel
 379         }
 380     }
 381
 382     @Override
 383     public void initialize() {
 384         String localHost = "";
 385         thingLabel = thing.getLabel();
 386         updateStatus(ThingStatus.UNKNOWN);
 387         localHost = getThing().getConfiguration().get("host").toString();
 388         this.host = localHost;
 389         if (!"".equals(this.host)) {
 390             zoneNum = getNumberOfZones(this.host);
 391             logger.trace("Zones found: {} - {}", zoneNum, thingLabel);
 392
 393             if (zoneNum > 0) {
 394                 refreshOnStartup();
 395                 generalHousekeepingTask = scheduler.scheduleWithFixedDelay(this::generalHousekeeping, 5, 300,
 396                         TimeUnit.SECONDS);
 397                 updateStatus(ThingStatus.ONLINE);
 398             } else {
 399                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.OFFLINE.CONFIGURATION_ERROR, "No host found");
 400             }
 401         }
 402     }
 403
 404     private void generalHousekeeping() {
 405         thingLabel = thing.getLabel();
 406         logger.trace("YXC - Start Keep Alive UDP events (5 minutes - {}) ", thingLabel);
 407         keepUdpEventsAlive(this.host);
 408         fillOptionsForMCLink();
 409         updateMCLinkStatus();
 410     }
 411
 412     private void refreshOnStartup() {
 413         for (int i = 1; i <= zoneNum; i++) {
 414             switch (i) {
 415                 case 1:
 416                     createChannels("main");
 417                     updateStatusZone("main");
 418                     break;
 419                 case 2:
 420                     createChannels("zone2");
 421                     updateStatusZone("zone2");
 422                     break;
 423                 case 3:
 424                     createChannels("zone3");
 425                     updateStatusZone("zone3");
 426                     break;
 427                 case 4:
 428                     createChannels("zone4");
 429                     updateStatusZone("zone4");
 430                     break;
 431             }
 432         }
 433         updatePresets(0);
 434         updateNetUSBPlayer();
 435         fillOptionsForMCLink();
 436         updateMCLinkStatus();
 437     }
 438
 439     @Override
 440     public void dispose() {
 441         ScheduledFuture<?> localGeneralHousekeepingTask = generalHousekeepingTask;
 442         if (localGeneralHousekeepingTask != null) {
 443             localGeneralHousekeepingTask.cancel(true);
 444         }
 445     }
 446
 447     // Various functions
 448
 449     private void createChannels(String zone) {
 450         createChannel(zone, CHANNEL_POWER, CHANNEL_TYPE_UID_POWER, "Switch");
 451         createChannel(zone, CHANNEL_MUTE, CHANNEL_TYPE_UID_MUTE, "Switch");
 452         createChannel(zone, CHANNEL_VOLUME, CHANNEL_TYPE_UID_VOLUME, "Dimmer");
 453         createChannel(zone, CHANNEL_VOLUMEABS, CHANNEL_TYPE_UID_VOLUMEABS, "Number");
 454         createChannel(zone, CHANNEL_INPUT, CHANNEL_TYPE_UID_INPUT, "String");
 455         createChannel(zone, CHANNEL_SOUNDPROGRAM, CHANNEL_TYPE_UID_SOUNDPROGRAM, "String");
 456         createChannel(zone, CHANNEL_SLEEP, CHANNEL_TYPE_UID_SLEEP, "Number");
 457         createChannel(zone, CHANNEL_SELECTPRESET, CHANNEL_TYPE_UID_SELECTPRESET, "String");
 458         createChannel(zone, CHANNEL_RECALLSCENE, CHANNEL_TYPE_UID_RECALLSCENE, "Number");
 459         createChannel(zone, CHANNEL_MCLINKSTATUS, CHANNEL_TYPE_UID_MCLINKSTATUS, "String");
 460     }
 461
 462     private void createChannel(String zone, String channel, ChannelTypeUID channelTypeUID, String itemType) {
 463         ChannelUID channelToCheck = new ChannelUID(thing.getUID(), zone, channel);
 464         if (thing.getChannel(channelToCheck) == null) {
 465             ThingBuilder thingBuilder = editThing();
 466             Channel testchannel = ChannelBuilder.create(new ChannelUID(getThing().getUID(), zone, channel), itemType)
 467                     .withType(channelTypeUID).build();
 468             thingBuilder.withChannel(testchannel);
 469             updateThing(thingBuilder.build());
 470         }
 471     }
 472
 473     private void powerOffCleanup() {
 474         ChannelUID channel;
 475         channel = new ChannelUID(getThing().getUID(), "playerControls", CHANNEL_ARTIST);
 476         updateState(channel, StringType.valueOf("-"));
 477         channel = new ChannelUID(getThing().getUID(), "playerControls", CHANNEL_TRACK);
 478         updateState(channel, StringType.valueOf("-"));
 479         channel = new ChannelUID(getThing().getUID(), "playerControls", CHANNEL_ALBUM);
 480         updateState(channel, StringType.valueOf("-"));
 481     }
 482
 483     public void processUDPEvent(String json, String trackingID) {
 484         logger.trace("UDP package: {} (Tracking: {})", json, trackingID);
 485         @Nullable
 486         UdpMessage targetObject = gson.fromJson(json, UdpMessage.class);
 487         if (targetObject != null) {
 488             if (Objects.nonNull(targetObject.getMain())) {
 489                 updateStateFromUDPEvent("main", targetObject);
 490             }
 491             if (Objects.nonNull(targetObject.getZone2())) {
 492                 updateStateFromUDPEvent("zone2", targetObject);
 493             }
 494             if (Objects.nonNull(targetObject.getZone3())) {
 495                 updateStateFromUDPEvent("zone3", targetObject);
 496             }
 497             if (Objects.nonNull(targetObject.getZone4())) {
 498                 updateStateFromUDPEvent("zone4", targetObject);
 499             }
 500             if (Objects.nonNull(targetObject.getNetUSB())) {
 501                 updateStateFromUDPEvent("netusb", targetObject);
 502             }
 503             if (Objects.nonNull(targetObject.getDist())) {
 504                 updateStateFromUDPEvent("dist", targetObject);
 505             }
 506         }
 507     }
 508
 509     private void updateStateFromUDPEvent(String zoneToUpdate, UdpMessage targetObject) {
 510         ChannelUID channel;
 511         String playInfoUpdated = "";
 512         String statusUpdated = "";
 513         String powerState = "";
 514         String muteState = "";
 515         String inputState = "";
 516         int volumeState = 0;
 517         int presetNumber = 0;
 518         int playTime = 0;
 519         String distInfoUpdated = "";
 520         logger.trace("Handling UDP for {}", zoneToUpdate);
 521         switch (zoneToUpdate) {
 522             case "main":
 523                 powerState = targetObject.getMain().getPower();
 524                 muteState = targetObject.getMain().getMute();
 525                 inputState = targetObject.getMain().getInput();
 526                 volumeState = targetObject.getMain().getVolume();
 527                 statusUpdated = targetObject.getMain().getstatusUpdated();
 528                 break;
 529             case "zone2":
 530                 powerState = targetObject.getZone2().getPower();
 531                 muteState = targetObject.getZone2().getMute();
 532                 inputState = targetObject.getZone2().getInput();
 533                 volumeState = targetObject.getZone2().getVolume();
 534                 statusUpdated = targetObject.getZone2().getstatusUpdated();
 535                 break;
 536             case "zone3":
 537                 powerState = targetObject.getZone3().getPower();
 538                 muteState = targetObject.getZone3().getMute();
 539                 inputState = targetObject.getZone3().getInput();
 540                 volumeState = targetObject.getZone3().getVolume();
 541                 statusUpdated = targetObject.getZone3().getstatusUpdated();
 542                 break;
 543             case "zone4":
 544                 powerState = targetObject.getZone4().getPower();
 545                 muteState = targetObject.getZone4().getMute();
 546                 inputState = targetObject.getZone4().getInput();
 547                 volumeState = targetObject.getZone4().getVolume();
 548                 statusUpdated = targetObject.getZone4().getstatusUpdated();
 549                 break;
 550             case "netusb":
 551                 if (Objects.isNull(targetObject.getNetUSB().getPresetControl())) {
 552                     presetNumber = 0;
 553                 } else {
 554                     presetNumber = targetObject.getNetUSB().getPresetControl().getNum();
 555                 }
 556                 playInfoUpdated = targetObject.getNetUSB().getPlayInfoUpdated();
 557                 playTime = targetObject.getNetUSB().getPlayTime();
 558                 // totalTime is not in UDP event
 559                 break;
 560             case "dist":
 561                 distInfoUpdated = targetObject.getDist().getDistInfoUpdated();
 562                 break;
 563         }
 564
 565         if (!powerState.isEmpty()) {
 566             channel = new ChannelUID(getThing().getUID(), zoneToUpdate, CHANNEL_POWER);
 567             if ("on".equals(powerState)) {
 568                 updateState(channel, OnOffType.ON);
 569             } else if ("standby".equals(powerState)) {
 570                 updateState(channel, OnOffType.OFF);
 571                 powerOffCleanup();
 572             }
 573         }
 574
 575         if (!muteState.isEmpty()) {
 576             channel = new ChannelUID(getThing().getUID(), zoneToUpdate, CHANNEL_MUTE);
 577             if ("true".equals(muteState)) {
 578                 updateState(channel, OnOffType.ON);
 579             } else if ("false".equals(muteState)) {
 580                 updateState(channel, OnOffType.OFF);
 581             }
 582         }
 583
 584         if (!inputState.isEmpty()) {
 585             channel = new ChannelUID(getThing().getUID(), zoneToUpdate, CHANNEL_INPUT);
 586             updateState(channel, StringType.valueOf(inputState));
 587         }
 588
 589         if (volumeState != 0) {
 590             channel = new ChannelUID(getThing().getUID(), zoneToUpdate, CHANNEL_VOLUME);
 591             updateState(channel, new PercentType((volumeState * 100) / maxVolumeState));
 592             channel = new ChannelUID(getThing().getUID(), zoneToUpdate, CHANNEL_VOLUMEABS);
 593             updateState(channel, new DecimalType(volumeState));
 594         }
 595
 596         if (presetNumber != 0) {
 597             logger.trace("Preset detected: {}", presetNumber);
 598             updatePresets(presetNumber);
 599         }
 600
 601         if ("true".equals(playInfoUpdated)) {
 602             updateNetUSBPlayer();
 603         }
 604
 605         if (!statusUpdated.isEmpty()) {
 606             updateStatusZone(zoneToUpdate);
 607         }
 608         if (playTime != 0) {
 609             channel = new ChannelUID(getThing().getUID(), "playerControls", CHANNEL_PLAYTIME);
 610             updateState(channel, StringType.valueOf(String.valueOf(playTime)));
 611         }
 612         if ("true".equals(distInfoUpdated)) {
 613             updateMCLinkStatus();
 614         }
 615     }
 616
 617     private void updateStatusZone(String zoneToUpdate) {
 618         String localZone = "";
 619         tmpString = getStatus(this.host, zoneToUpdate);
 620         @Nullable
 621         Status targetObject = gson.fromJson(tmpString, Status.class);
 622         if (targetObject != null) {
 623             String responseCode = targetObject.getResponseCode();
 624             String powerState = targetObject.getPower();
 625             String muteState = targetObject.getMute();
 626             volumeState = targetObject.getVolume();
 627             maxVolumeState = targetObject.getMaxVolume();
 628             inputState = targetObject.getInput();
 629             soundProgramState = targetObject.getSoundProgram();
 630             sleepState = targetObject.getSleep();
 631
 632             logger.trace("{} - Response: {}", zoneToUpdate, responseCode);
 633             logger.trace("{} - Power: {}", zoneToUpdate, powerState);
 634             logger.trace("{} - Mute: {}", zoneToUpdate, muteState);
 635             logger.trace("{} - Volume: {}", zoneToUpdate, volumeState);
 636             logger.trace("{} - Max Volume: {}", zoneToUpdate, maxVolumeState);
 637             logger.trace("{} - Input: {}", zoneToUpdate, inputState);
 638             logger.trace("{} - Soundprogram: {}", zoneToUpdate, soundProgramState);
 639             logger.trace("{} - Sleep: {}", zoneToUpdate, sleepState);
 640
 641             switch (responseCode) {
 642                 case "0":
 643                     for (Channel channel : getThing().getChannels()) {
 644                         ChannelUID channelUID = channel.getUID();
 645                         channelWithoutGroup = channelUID.getIdWithoutGroup();
 646                         localZone = channelUID.getGroupId();
 647                         if (localZone != null) {
 648                             if (isLinked(channelUID)) {
 649                                 switch (channelWithoutGroup) {
 650                                     case CHANNEL_POWER:
 651                                         if ("on".equals(powerState)) {
 652                                             if (localZone.equals(zoneToUpdate)) {
 653                                                 updateState(channelUID, OnOffType.ON);
 654                                             }
 655                                         } else if ("standby".equals(powerState)) {
 656                                             if (localZone.equals(zoneToUpdate)) {
 657                                                 updateState(channelUID, OnOffType.OFF);
 658                                             }
 659                                         }
 660                                         break;
 661                                     case CHANNEL_MUTE:
 662                                         if ("true".equals(muteState)) {
 663                                             if (localZone.equals(zoneToUpdate)) {
 664                                                 updateState(channelUID, OnOffType.ON);
 665                                             }
 666                                         } else if ("false".equals(muteState)) {
 667                                             if (localZone.equals(zoneToUpdate)) {
 668                                                 updateState(channelUID, OnOffType.OFF);
 669                                             }
 670                                         }
 671                                         break;
 672                                     case CHANNEL_VOLUME:
 673                                         if (localZone.equals(zoneToUpdate)) {
 674                                             updateState(channelUID,
 675                                                     new PercentType((volumeState * 100) / maxVolumeState));
 676                                         }
 677                                         break;
 678                                     case CHANNEL_VOLUMEABS:
 679                                         if (localZone.equals(zoneToUpdate)) {
 680                                             updateState(channelUID, new DecimalType(volumeState));
 681                                         }
 682                                         break;
 683                                     case CHANNEL_INPUT:
 684                                         if (localZone.equals(zoneToUpdate)) {
 685                                             updateState(channelUID, StringType.valueOf(inputState));
 686                                         }
 687                                         break;
 688                                     case CHANNEL_SOUNDPROGRAM:
 689                                         if (localZone.equals(zoneToUpdate)) {
 690                                             updateState(channelUID, StringType.valueOf(soundProgramState));
 691                                         }
 692                                         break;
 693                                     case CHANNEL_SLEEP:
 694                                         if (localZone.equals(zoneToUpdate)) {
 695                                             updateState(channelUID, new DecimalType(sleepState));
 696                                         }
 697                                         break;
 698                                 } // END switch (channelWithoutGroup)
 699                             } // END IsLinked
 700                         }
 701                     }
 702                     break;
 703                 case "999":
 704                     logger.trace("Nothing to do! - {} ({})", thingLabel, zoneToUpdate);
 705                     break;
 706             }
 707         }
 708     }
 709
 710     private void updatePresets(int value) {
 711         String inputText = "";
 712         int presetCounter = 0;
 713         int currentPreset = 0;
 714         tmpString = getPresetInfo(this.host);
 715
 716         PresetInfo presetinfo = gson.fromJson(tmpString, PresetInfo.class);
 717         if (presetinfo != null) {
 718             String responseCode = presetinfo.getResponseCode();
 719             if ("0".equals(responseCode)) {
 720                 List<StateOption> optionsPresets = new ArrayList<>();
 721                 inputText = getLastInput();
 722                 if (inputText != null) {
 723                     for (JsonElement pr : presetinfo.getPresetInfo()) {
 724                         presetCounter = presetCounter + 1;
 725                         JsonObject presetObject = pr.getAsJsonObject();
 726                         String text = presetObject.get("text").getAsString();
 727                         if (!"".equals(text)) {
 728                             optionsPresets.add(new StateOption(String.valueOf(presetCounter),
 729                                     "#" + String.valueOf(presetCounter) + " " + text));
 730                             if (inputText.equals(text)) {
 731                                 currentPreset = presetCounter;
 732                             }
 733                         }
 734                     }
 735                 }
 736                 if (value != 0) {
 737                     currentPreset = value;
 738                 }
 739                 for (Channel channel : getThing().getChannels()) {
 740                     ChannelUID channelUID = channel.getUID();
 741                     channelWithoutGroup = channelUID.getIdWithoutGroup();
 742                     if (isLinked(channelUID)) {
 743                         switch (channelWithoutGroup) {
 744                             case CHANNEL_SELECTPRESET:
 745                                 stateDescriptionProvider.setStateOptions(channelUID, optionsPresets);
 746                                 updateState(channelUID, StringType.valueOf(String.valueOf(currentPreset)));
 747                                 break;
 748                         }
 749                     }
 750                 }
 751             }
 752         }
 753     }
 754
 755     private void updateNetUSBPlayer() {
 756         tmpString = getPlayInfo(this.host);
 757
 758         @Nullable
 759         PlayInfo targetObject = gson.fromJson(tmpString, PlayInfo.class);
 760         if (targetObject != null) {
 761             String responseCode = targetObject.getResponseCode();
 762             String playbackState = targetObject.getPlayback();
 763             artistState = targetObject.getArtist();
 764             trackState = targetObject.getTrack();
 765             albumState = targetObject.getAlbum();
 766             String albumArtUrlState = targetObject.getAlbumArtUrl();
 767             repeatState = targetObject.getRepeat();
 768             shuffleState = targetObject.getShuffle();
 769             playTimeState = targetObject.getPlayTime();
 770             totalTimeState = targetObject.getTotalTime();
 771
 772             if ("0".equals(responseCode)) {
 773                 ChannelUID testchannel = new ChannelUID(getThing().getUID(), "playerControls", CHANNEL_PLAYER);
 774                 switch (playbackState) {
 775                     case "play":
 776                         updateState(testchannel, PlayPauseType.PLAY);
 777                         break;
 778                     case "stop":
 779                         updateState(testchannel, PlayPauseType.PAUSE);
 780                         break;
 781                     case "pause":
 782                         updateState(testchannel, PlayPauseType.PAUSE);
 783                         break;
 784                     case "fast_reverse":
 785                         updateState(testchannel, RewindFastforwardType.REWIND);
 786                         break;
 787                     case "fast_forward":
 788                         updateState(testchannel, RewindFastforwardType.FASTFORWARD);
 789                         break;
 790                 }
 791                 testchannel = new ChannelUID(getThing().getUID(), "playerControls", CHANNEL_ARTIST);
 792                 updateState(testchannel, StringType.valueOf(artistState));
 793                 testchannel = new ChannelUID(getThing().getUID(), "playerControls", CHANNEL_TRACK);
 794                 updateState(testchannel, StringType.valueOf(trackState));
 795                 testchannel = new ChannelUID(getThing().getUID(), "playerControls", CHANNEL_ALBUM);
 796                 updateState(testchannel, StringType.valueOf(albumState));
 797                 testchannel = new ChannelUID(getThing().getUID(), "playerControls", CHANNEL_ALBUMART);
 798                 if (!"".equals(albumArtUrlState)) {
 799                     albumArtUrlState = HTTP + this.host + albumArtUrlState;
 800                 }
 801                 updateState(testchannel, StringType.valueOf(albumArtUrlState));
 802                 testchannel = new ChannelUID(getThing().getUID(), "playerControls", CHANNEL_REPEAT);
 803                 updateState(testchannel, StringType.valueOf(repeatState));
 804                 testchannel = new ChannelUID(getThing().getUID(), "playerControls", CHANNEL_SHUFFLE);
 805                 updateState(testchannel, StringType.valueOf(shuffleState));
 806                 testchannel = new ChannelUID(getThing().getUID(), "playerControls", CHANNEL_PLAYTIME);
 807                 updateState(testchannel, StringType.valueOf(String.valueOf(playTimeState)));
 808                 testchannel = new ChannelUID(getThing().getUID(), "playerControls", CHANNEL_TOTALTIME);
 809                 updateState(testchannel, StringType.valueOf(String.valueOf(totalTimeState)));
 810             }
 811         }
 812     }
 813
 814     private @Nullable String getLastInput() {
 815         String text = "";
 816         tmpString = getRecentInfo(this.host);
 817         RecentInfo recentinfo = gson.fromJson(tmpString, RecentInfo.class);
 818         if (recentinfo != null) {
 819             String responseCode = recentinfo.getResponseCode();
 820             if ("0".equals(responseCode)) {
 821                 for (JsonElement ri : recentinfo.getRecentInfo()) {
 822                     JsonObject recentObject = ri.getAsJsonObject();
 823                     text = recentObject.get("text").getAsString();
 824                     break;
 825                 }
 826             }
 827         }
 828         return text;
 829     }
 830
 831     private String connectedServer() {
 832         DistributionInfo distributioninfo = new DistributionInfo();
 833         Bridge bridge = getBridge();
 834         String remotehost = "";
 835         String result = "";
 836         String localHost = "";
 837         if (bridge != null) {
 838             for (Thing thing : bridge.getThings()) {
 839                 remotehost = thing.getConfiguration().get("host").toString();
 840                 tmpString = getDistributionInfo(remotehost);
 841                 distributioninfo = gson.fromJson(tmpString, DistributionInfo.class);
 842                 if (distributioninfo != null) {
 843                     String localRole = distributioninfo.getRole();
 844                     if ("server".equals(localRole)) {
 845                         for (JsonElement ip : distributioninfo.getClientList()) {
 846                             JsonObject clientObject = ip.getAsJsonObject();
 847                             localHost = getThing().getConfiguration().get("host").toString();
 848                             if (localHost.equals(clientObject.get("ip_address").getAsString())) {
 849                                 result = remotehost;
 850                                 break;
 851                             }
 852                         }
 853                     }
 854                 }
 855             }
 856         }
 857         return result;
 858     }
 859
 860     private void fillOptionsForMCLink() {
 861         Bridge bridge = getBridge();
 862         String host = "";
 863         String label = "";
 864         int zonesPerHost = 1;
 865         int clients = 0;
 866         tmpString = getDistributionInfo(this.host);
 867         DistributionInfo targetObject = gson.fromJson(tmpString, DistributionInfo.class);
 868         if (targetObject != null) {
 869             clients = targetObject.getClientList().size();
 870         }
 871
 872         List<StateOption> options = new ArrayList<>();
 873         // first add 3 options for MC Link
 874         options.add(new StateOption("", "Standalone"));
 875         options.add(new StateOption("server", "Server: " + clients + " clients"));
 876         options.add(new StateOption("client", "Client"));
 877
 878         if (bridge != null) {
 879             for (Thing thing : bridge.getThings()) {
 880                 label = thing.getLabel();
 881                 host = thing.getConfiguration().get("host").toString();
 882                 logger.trace("Thing found on Bridge: {} - {}", label, host);
 883                 zonesPerHost = getNumberOfZones(host);
 884                 for (int i = 1; i <= zonesPerHost; i++) {
 885                     switch (i) {
 886                         case 1:
 887                             options.add(new StateOption(host + "***main", label + " - main (" + host + ")"));
 888                             break;
 889                         case 2:
 890                             options.add(new StateOption(host + "***zone2", label + " - zone2 (" + host + ")"));
 891                             break;
 892                         case 3:
 893                             options.add(new StateOption(host + "***zone3", label + " - zone3 (" + host + ")"));
 894                             break;
 895                         case 4:
 896                             options.add(new StateOption(host + "***zone4", label + " - zone4 (" + host + ")"));
 897                             break;
 898                     }
 899                 }
 900
 901             }
 902         }
 903         // for each zone of the device, set all the possible combinations
 904         ChannelUID testchannel;
 905         for (int i = 1; i <= zoneNum; i++) {
 906             switch (i) {
 907                 case 1:
 908                     testchannel = new ChannelUID(getThing().getUID(), "main", CHANNEL_MCLINKSTATUS);
 909                     if (isLinked(testchannel)) {
 910                         stateDescriptionProvider.setStateOptions(testchannel, options);
 911                     }
 912                     break;
 913                 case 2:
 914                     testchannel = new ChannelUID(getThing().getUID(), "zone2", CHANNEL_MCLINKSTATUS);
 915                     if (isLinked(testchannel)) {
 916                         stateDescriptionProvider.setStateOptions(testchannel, options);
 917                     }
 918                     break;
 919                 case 3:
 920                     testchannel = new ChannelUID(getThing().getUID(), "zone3", CHANNEL_MCLINKSTATUS);
 921                     if (isLinked(testchannel)) {
 922                         stateDescriptionProvider.setStateOptions(testchannel, options);
 923                     }
 924                     break;
 925                 case 4:
 926                     testchannel = new ChannelUID(getThing().getUID(), "zone4", CHANNEL_MCLINKSTATUS);
 927                     if (isLinked(testchannel)) {
 928                         stateDescriptionProvider.setStateOptions(testchannel, options);
 929                     }
 930                     break;
 931             }
 932         }
 933     }
 934
 935     private String generateGroupId() {
 936         return UUID.randomUUID().toString().replace("-", "").substring(0, 32);
 937     }
 938
 939     private int getNumberOfZones(@Nullable String host) {
 940         int numberOfZones = 0;
 941         tmpString = getFeatures(host);
 942         @Nullable
 943         Features targetObject = gson.fromJson(tmpString, Features.class);
 944         if (targetObject != null) {
 945             responseCode = targetObject.getResponseCode();
 946             if ("0".equals(responseCode)) {
 947                 numberOfZones = targetObject.getSystem().getZoneNum();
 948             }
 949         }
 950         return numberOfZones;
 951     }
 952
 953     public @Nullable String getDeviceId() {
 954         tmpString = getDeviceInfo(this.host);
 955         String localValueToCheck = "";
 956         @Nullable
 957         DeviceInfo targetObject = gson.fromJson(tmpString, DeviceInfo.class);
 958         if (targetObject != null) {
 959             localValueToCheck = targetObject.getDeviceId();
 960         }
 961         return localValueToCheck;
 962     }
 963
 964     private void setVolumeLinkedDevice(int value, @Nullable String zone, String host) {
 965         logger.trace("setVolumeLinkedDevice: {}", host);
 966         int zoneNumLinkedDevice = getNumberOfZones(host);
 967         int maxVolumeLinkedDevice = 0;
 968         @Nullable
 969         Status targetObject = new Status();
 970         int newVolume = 0;
 971         for (int i = 1; i <= zoneNumLinkedDevice; i++) {
 972             switch (i) {
 973                 case 1:
 974                     tmpString = getStatus(host, "main");
 975                     targetObject = gson.fromJson(tmpString, Status.class);
 976                     if (targetObject != null) {
 977                         responseCode = targetObject.getResponseCode();
 978                         maxVolumeLinkedDevice = targetObject.getMaxVolume();
 979                         newVolume = maxVolumeLinkedDevice * value / 100;
 980                         setVolume(newVolume, "main", host);
 981                     }
 982                     break;
 983                 case 2:
 984                     tmpString = getStatus(host, "zone2");
 985                     targetObject = gson.fromJson(tmpString, Status.class);
 986                     if (targetObject != null) {
 987                         responseCode = targetObject.getResponseCode();
 988                         maxVolumeLinkedDevice = targetObject.getMaxVolume();
 989                         newVolume = maxVolumeLinkedDevice * value / 100;
 990                         setVolume(newVolume, "zone2", host);
 991                     }
 992                     break;
 993                 case 3:
 994                     tmpString = getStatus(host, "zone3");
 995                     targetObject = gson.fromJson(tmpString, Status.class);
 996                     if (targetObject != null) {
 997                         responseCode = targetObject.getResponseCode();
 998                         maxVolumeLinkedDevice = targetObject.getMaxVolume();
 999                         newVolume = maxVolumeLinkedDevice * value / 100;
1000                         setVolume(newVolume, "zone3", host);
1001                     }
1002                     break;
1003                 case 4:
1004                     tmpString = getStatus(host, "zone4");
1005                     targetObject = gson.fromJson(tmpString, Status.class);
1006                     if (targetObject != null) {
1007                         responseCode = targetObject.getResponseCode();
1008                         maxVolumeLinkedDevice = targetObject.getMaxVolume();
1009                         newVolume = maxVolumeLinkedDevice * value / 100;
1010                         setVolume(newVolume, "zone4", host);
1011                     }
1012                     break;
1013             }
1014         }
1015     }
1016
1017     public void updateMCLinkStatus() {
1018         tmpString = getDistributionInfo(this.host);
1019         @Nullable
1020         DistributionInfo targetObject = gson.fromJson(tmpString, DistributionInfo.class);
1021         if (targetObject != null) {
1022             String localRole = targetObject.getRole();
1023             groupId = targetObject.getGroupId();
1024             switch (localRole) {
1025                 case "none":
1026                     setMCLinkToStandalone();
1027                     break;
1028                 case "server":
1029                     setMCLinkToServer();
1030                     break;
1031                 case "client":
1032                     setMCLinkToClient();
1033                     break;
1034             }
1035         }
1036     }
1037
1038     private void setMCLinkToStandalone() {
1039         ChannelUID testchannel;
1040         for (int i = 1; i <= zoneNum; i++) {
1041             switch (i) {
1042                 case 1:
1043                     testchannel = new ChannelUID(getThing().getUID(), "main", CHANNEL_MCLINKSTATUS);
1044                     updateState(testchannel, StringType.valueOf(""));
1045                     break;
1046                 case 2:
1047                     testchannel = new ChannelUID(getThing().getUID(), "zone2", CHANNEL_MCLINKSTATUS);
1048                     updateState(testchannel, StringType.valueOf(""));
1049                     break;
1050                 case 3:
1051                     testchannel = new ChannelUID(getThing().getUID(), "zone3", CHANNEL_MCLINKSTATUS);
1052                     updateState(testchannel, StringType.valueOf(""));
1053                     break;
1054                 case 4:
1055                     testchannel = new ChannelUID(getThing().getUID(), "zone4", CHANNEL_MCLINKSTATUS);
1056                     updateState(testchannel, StringType.valueOf(""));
1057                     break;
1058             }
1059         }
1060     }
1061
1062     private void setMCLinkToClient() {
1063         ChannelUID testchannel;
1064         for (int i = 1; i <= zoneNum; i++) {
1065             switch (i) {
1066                 case 1:
1067                     testchannel = new ChannelUID(getThing().getUID(), "main", CHANNEL_MCLINKSTATUS);
1068                     updateState(testchannel, StringType.valueOf("client"));
1069                     break;
1070                 case 2:
1071                     testchannel = new ChannelUID(getThing().getUID(), "zone2", CHANNEL_MCLINKSTATUS);
1072                     updateState(testchannel, StringType.valueOf("client"));
1073                     break;
1074                 case 3:
1075                     testchannel = new ChannelUID(getThing().getUID(), "zone3", CHANNEL_MCLINKSTATUS);
1076                     updateState(testchannel, StringType.valueOf("client"));
1077                     break;
1078                 case 4:
1079                     testchannel = new ChannelUID(getThing().getUID(), "zone4", CHANNEL_MCLINKSTATUS);
1080                     updateState(testchannel, StringType.valueOf("client"));
1081                     break;
1082             }
1083         }
1084     }
1085
1086     private void setMCLinkToServer() {
1087         ChannelUID testchannel;
1088         for (int i = 1; i <= zoneNum; i++) {
1089             switch (i) {
1090                 case 1:
1091                     testchannel = new ChannelUID(getThing().getUID(), "main", CHANNEL_MCLINKSTATUS);
1092                     updateState(testchannel, StringType.valueOf("server"));
1093                     break;
1094                 case 2:
1095                     testchannel = new ChannelUID(getThing().getUID(), "zone2", CHANNEL_MCLINKSTATUS);
1096                     updateState(testchannel, StringType.valueOf("server"));
1097                     break;
1098                 case 3:
1099                     testchannel = new ChannelUID(getThing().getUID(), "zone3", CHANNEL_MCLINKSTATUS);
1100                     updateState(testchannel, StringType.valueOf("server"));
1101                     break;
1102                 case 4:
1103                     testchannel = new ChannelUID(getThing().getUID(), "zone4", CHANNEL_MCLINKSTATUS);
1104                     updateState(testchannel, StringType.valueOf("server"));
1105                     break;
1106             }
1107         }
1108     }
1109
1110     private String makeRequest(@Nullable String topicAVR, String url) {
1111         String response = "";
1112         try {
1113             response = HttpUtil.executeUrl("GET", HTTP + url, LONG_CONNECTION_TIMEOUT_MILLISEC);
1114             logger.trace("{} - {}", topicAVR, response);
1115             return response;
1116         } catch (IOException e) {
1117             logger.trace("IO Exception - {} - {}", topicAVR, e.getMessage());
1118             return "{\"response_code\":\"999\"}";
1119         }
1120     }
1121     // End Various functions
1122
1123     // API calls to AVR
1124
1125     // Start Zone Related
1126
1127     private @Nullable String getStatus(@Nullable String host, String zone) {
1128         return makeRequest("Status", host + YAMAHA_EXTENDED_CONTROL + zone + "/getStatus");
1129     }
1130
1131     private @Nullable String setPower(String value, @Nullable String zone, @Nullable String host) {
1132         return makeRequest("Power", host + YAMAHA_EXTENDED_CONTROL + zone + "/setPower?power=" + value);
1133     }
1134
1135     private @Nullable String setMute(String value, @Nullable String zone, @Nullable String host) {
1136         return makeRequest("Mute", host + YAMAHA_EXTENDED_CONTROL + zone + "/setMute?enable=" + value);
1137     }
1138
1139     private @Nullable String setVolume(int value, @Nullable String zone, @Nullable String host) {
1140         return makeRequest("Volume", host + YAMAHA_EXTENDED_CONTROL + zone + "/setVolume?volume=" + value);
1141     }
1142
1143     private @Nullable String setInput(String value, @Nullable String zone, @Nullable String host) {
1144         return makeRequest("setInput", host + YAMAHA_EXTENDED_CONTROL + zone + "/setInput?input=" + value);
1145     }
1146
1147     private @Nullable String setSoundProgram(String value, @Nullable String zone, @Nullable String host) {
1148         return makeRequest("setSoundProgram",
1149                 host + YAMAHA_EXTENDED_CONTROL + zone + "/setSoundProgram?program=" + value);
1150     }
1151
1152     private @Nullable String setPreset(String value, @Nullable String zone, @Nullable String host) {
1153         return makeRequest("setPreset",
1154                 host + YAMAHA_EXTENDED_CONTROL + "netusb/recallPreset?zone=" + zone + "&num=" + value);
1155     }
1156
1157     private @Nullable String setSleep(String value, @Nullable String zone, @Nullable String host) {
1158         return makeRequest("setSleep", host + YAMAHA_EXTENDED_CONTROL + zone + "/setSleep?sleep=" + value);
1159     }
1160
1161     private @Nullable String recallScene(String value, @Nullable String zone, @Nullable String host) {
1162         return makeRequest("recallScene", host + YAMAHA_EXTENDED_CONTROL + zone + "/recallScene?num=" + value);
1163     }
1164     // End Zone Related
1165
1166     // Start Net Radio/USB Related
1167
1168     private @Nullable String getPresetInfo(@Nullable String host) {
1169         return makeRequest("PresetInfo", host + YAMAHA_EXTENDED_CONTROL + "netusb/getPresetInfo");
1170     }
1171
1172     private @Nullable String getRecentInfo(@Nullable String host) {
1173         return makeRequest("RecentInfo", host + YAMAHA_EXTENDED_CONTROL + "netusb/getRecentInfo");
1174     }
1175
1176     private @Nullable String getPlayInfo(@Nullable String host) {
1177         return makeRequest("PlayInfo", host + YAMAHA_EXTENDED_CONTROL + "netusb/getPlayInfo");
1178     }
1179
1180     private @Nullable String setPlayback(String value, @Nullable String host) {
1181         return makeRequest("Playback", host + YAMAHA_EXTENDED_CONTROL + "netusb/setPlayback?playback=" + value);
1182     }
1183
1184     private @Nullable String setRepeat(String value, @Nullable String host) {
1185         return makeRequest("Repeat", host + YAMAHA_EXTENDED_CONTROL + "netusb/setRepeat?mode=" + value);
1186     }
1187
1188     private @Nullable String setShuffle(String value, @Nullable String host) {
1189         return makeRequest("Shuffle", host + YAMAHA_EXTENDED_CONTROL + "netusb/setShuffle?mode=" + value);
1190     }
1191
1192     // End Net Radio/USB Related
1193
1194     // Start Music Cast API calls
1195     private @Nullable String getDistributionInfo(@Nullable String host) {
1196         return makeRequest("DistributionInfo", host + YAMAHA_EXTENDED_CONTROL + "dist/getDistributionInfo");
1197     }
1198
1199     private @Nullable String setClientServerInfo(@Nullable String host, String json, String type) {
1200         InputStream is = new ByteArrayInputStream(json.getBytes(StandardCharsets.UTF_8));
1201         try {
1202             url = "http://" + host + YAMAHA_EXTENDED_CONTROL + "dist/" + type;
1203             httpResponse = HttpUtil.executeUrl("POST", url, is, "", LONG_CONNECTION_TIMEOUT_MILLISEC);
1204             logger.trace("MC Link/Unlink Client {}", httpResponse);
1205             return httpResponse;
1206         } catch (IOException e) {
1207             logger.trace("IO Exception - {} - {}", type, e.getMessage());
1208             return "{\"response_code\":\"999\"}";
1209         }
1210     }
1211
1212     private @Nullable String startDistribution(@Nullable String host) {
1213         Random ran = new Random();
1214         int nxt = ran.nextInt(200000);
1215         return makeRequest("StartDistribution", host + YAMAHA_EXTENDED_CONTROL + "dist/startDistribution?num=" + nxt);
1216     }
1217
1218     // End Music Cast API calls
1219
1220     // Start General/System API calls
1221
1222     private @Nullable String getFeatures(@Nullable String host) {
1223         return makeRequest("Features", host + YAMAHA_EXTENDED_CONTROL + "system/getFeatures");
1224     }
1225
1226     private @Nullable String getDeviceInfo(@Nullable String host) {
1227         return makeRequest("DeviceInfo", host + YAMAHA_EXTENDED_CONTROL + "system/getDeviceInfo");
1228     }
1229
1230     private void keepUdpEventsAlive(@Nullable String host) {
1231         Properties appProps = new Properties();
1232         appProps.setProperty("X-AppName", "MusicCast/1");
1233         appProps.setProperty("X-AppPort", "41100");
1234         try {
1235             httpResponse = HttpUtil.executeUrl("GET", HTTP + host + YAMAHA_EXTENDED_CONTROL + "netusb/getPlayInfo",
1236                     appProps, null, "", LONG_CONNECTION_TIMEOUT_MILLISEC);
1237             // logger.trace("{}", httpResponse);
1238             logger.trace("{} - {}", "UDP task", httpResponse);
1239         } catch (IOException e) {
1240             logger.trace("UDP refresh failed - {}", e.getMessage());
1241         }
1242     }
1243     // End General/System API calls
1244 }