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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.siemensrds.internal;
  14
  15 import static org.openhab.binding.siemensrds.internal.RdsBindingConstants.*;
  16
  17 import java.io.IOException;
  18 import java.util.concurrent.ScheduledFuture;
  19 import java.util.concurrent.TimeUnit;
  20 import java.util.concurrent.atomic.AtomicInteger;
  21
  22 import javax.measure.Unit;
  23
  24 import org.eclipse.jdt.annotation.NonNullByDefault;
  25 import org.eclipse.jdt.annotation.Nullable;
  26 import org.openhab.binding.siemensrds.points.BasePoint;
  27 import org.openhab.core.library.types.OnOffType;
  28 import org.openhab.core.library.types.QuantityType;
  29 import org.openhab.core.library.types.StringType;
  30 import org.openhab.core.thing.Bridge;
  31 import org.openhab.core.thing.ChannelUID;
  32 import org.openhab.core.thing.Thing;
  33 import org.openhab.core.thing.ThingStatus;
  34 import org.openhab.core.thing.ThingStatusDetail;
  35 import org.openhab.core.thing.ThingStatusInfo;
  36 import org.openhab.core.thing.binding.BaseThingHandler;
  37 import org.openhab.core.thing.binding.BridgeHandler;
  38 import org.openhab.core.types.Command;
  39 import org.openhab.core.types.RefreshType;
  40 import org.openhab.core.types.State;
  41 import org.slf4j.Logger;
  42 import org.slf4j.LoggerFactory;
  43
  44 import com.google.gson.JsonParseException;
  45
  46 /**
  47  * The {@link RdsHandler} is the OpenHab Handler for Siemens RDS smart
  48  * thermostats
  49  *
  50  * @author Andrew Fiddian-Green - Initial contribution
  51  *
  52  */
  53 @NonNullByDefault
  54 public class RdsHandler extends BaseThingHandler {
  55
  56     protected final Logger logger = LoggerFactory.getLogger(RdsHandler.class);
  57
  58     private @Nullable ScheduledFuture<?> lazyPollingScheduler = null;
  59     private @Nullable ScheduledFuture<?> fastPollingScheduler = null;
  60
  61     private final AtomicInteger fastPollingCallsToGo = new AtomicInteger();
  62
  63     private RdsDebouncer debouncer = new RdsDebouncer();
  64
  65     private @Nullable RdsConfiguration config = null;
  66
  67     private @Nullable RdsDataPoints points = null;
  68
  69     public RdsHandler(Thing thing) {
  70         super(thing);
  71     }
  72
  73     @Override
  74     public void handleCommand(ChannelUID channelUID, Command command) {
  75         if (command != RefreshType.REFRESH) {
  76             doHandleCommand(channelUID.getId(), command);
  77         }
  78         startFastPollingBurst();
  79     }
  80
  81     @Override
  82     public void initialize() {
  83         updateStatus(ThingStatus.UNKNOWN, ThingStatusDetail.CONFIGURATION_PENDING);
  84
  85         RdsConfiguration config = this.config = getConfigAs(RdsConfiguration.class);
  86
  87         if (config.plantId.isEmpty()) {
  88             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "missing Plant Id");
  89             return;
  90         }
  91
  92         updateStatus(ThingStatus.UNKNOWN, ThingStatusDetail.CONFIGURATION_PENDING);
  93
  94         try {
  95             RdsCloudHandler cloud = getCloudHandler();
  96
  97             if (cloud.getThing().getStatus() != ThingStatus.ONLINE) {
  98                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.BRIDGE_OFFLINE, "cloud server offline");
  99                 return;
 100             }
 101
 102             initializePolling();
 103         } catch (RdsCloudException e) {
 104             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "missing cloud server handler");
 105             return;
 106         }
 107     }
 108
 109     public void initializePolling() {
 110         try {
 111             int pollInterval = getCloudHandler().getPollInterval();
 112
 113             // create a "lazy" polling scheduler
 114             ScheduledFuture<?> lazyPollingScheduler = this.lazyPollingScheduler;
 115             if (lazyPollingScheduler == null || lazyPollingScheduler.isCancelled()) {
 116                 this.lazyPollingScheduler = scheduler.scheduleWithFixedDelay(this::lazyPollingSchedulerExecute,
 117                         pollInterval, pollInterval, TimeUnit.SECONDS);
 118             }
 119
 120             // create a "fast" polling scheduler
 121             fastPollingCallsToGo.set(FAST_POLL_CYCLES);
 122             ScheduledFuture<?> fastPollingScheduler = this.fastPollingScheduler;
 123             if (fastPollingScheduler == null || fastPollingScheduler.isCancelled()) {
 124                 this.fastPollingScheduler = scheduler.scheduleWithFixedDelay(this::fastPollingSchedulerExecute,
 125                         FAST_POLL_INTERVAL, FAST_POLL_INTERVAL, TimeUnit.SECONDS);
 126             }
 127
 128             startFastPollingBurst();
 129         } catch (RdsCloudException e) {
 130             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, e.getMessage());
 131             logger.warn(LOG_SYSTEM_EXCEPTION, "initializePolling()", e.getClass().getName(), e.getMessage());
 132         }
 133     }
 134
 135     @Override
 136     public void bridgeStatusChanged(ThingStatusInfo bridgeStatusInfo) {
 137         if (bridgeStatusInfo.getStatus() == ThingStatus.ONLINE) {
 138             if (fastPollingScheduler == null) {
 139                 initializePolling();
 140             }
 141         }
 142     }
 143
 144     @Override
 145     public void dispose() {
 146         // clean up the lazy polling scheduler
 147         ScheduledFuture<?> lazyPollingScheduler = this.lazyPollingScheduler;
 148         if (lazyPollingScheduler != null && !lazyPollingScheduler.isCancelled()) {
 149             lazyPollingScheduler.cancel(true);
 150             this.lazyPollingScheduler = null;
 151         }
 152
 153         // clean up the fast polling scheduler
 154         ScheduledFuture<?> fastPollingScheduler = this.fastPollingScheduler;
 155         if (fastPollingScheduler != null && !fastPollingScheduler.isCancelled()) {
 156             fastPollingScheduler.cancel(true);
 157             this.fastPollingScheduler = null;
 158         }
 159     }
 160
 161     /*
 162      * private method: initiate a burst of fast polling requests
 163      */
 164     public void startFastPollingBurst() {
 165         fastPollingCallsToGo.set(FAST_POLL_CYCLES);
 166     }
 167
 168     /*
 169      * private method: this is the callback used by the lazy polling scheduler..
 170      * polls for the info for all points
 171      */
 172     private synchronized void lazyPollingSchedulerExecute() {
 173         doPollNow();
 174         if (fastPollingCallsToGo.get() > 0) {
 175             fastPollingCallsToGo.decrementAndGet();
 176         }
 177     }
 178
 179     /*
 180      * private method: this is the callback used by the fast polling scheduler..
 181      * checks if a fast polling burst is scheduled, and if so calls
 182      * lazyPollingSchedulerExecute
 183      */
 184     private void fastPollingSchedulerExecute() {
 185         if (fastPollingCallsToGo.get() > 0) {
 186             lazyPollingSchedulerExecute();
 187         }
 188     }
 189
 190     /*
 191      * private method: send request to the cloud server for a new list of data point
 192      * states
 193      */
 194     private void doPollNow() {
 195         try {
 196             RdsCloudHandler cloud = getCloudHandler();
 197
 198             if (cloud.getThing().getStatus() != ThingStatus.ONLINE) {
 199                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.BRIDGE_OFFLINE, "cloud server offline");
 200                 return;
 201             }
 202
 203             RdsDataPoints points = this.points;
 204             if ((points == null || (!points.refresh(cloud.getApiKey(), cloud.getToken())))) {
 205                 points = fetchPoints();
 206             }
 207
 208             if (points == null) {
 209                 if (getThing().getStatus() == ThingStatus.ONLINE) {
 210                     updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "missing data points");
 211                 }
 212                 throw new RdsCloudException("missing data points");
 213             }
 214
 215             if (!points.isOnline()) {
 216                 if (getThing().getStatus() == ThingStatus.ONLINE) {
 217                     updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 218                             "cloud server reports device offline");
 219                 }
 220                 return;
 221             }
 222
 223             if (getThing().getStatus() != ThingStatus.ONLINE) {
 224                 updateStatus(ThingStatus.ONLINE, ThingStatusDetail.NONE, "server response ok");
 225             }
 226
 227             for (ChannelMap channel : CHAN_MAP) {
 228                 if (!debouncer.timeExpired(channel.id)) {
 229                     continue;
 230                 }
 231
 232                 BasePoint point = points.getPointByClass(channel.clazz);
 233                 State state = null;
 234
 235                 switch (channel.id) {
 236                     case CHA_ROOM_TEMP:
 237                     case CHA_ROOM_HUMIDITY:
 238                     case CHA_OUTSIDE_TEMP:
 239                     case CHA_TARGET_TEMP: {
 240                         state = point.getState();
 241                         break;
 242                     }
 243                     case CHA_ROOM_AIR_QUALITY:
 244                     case CHA_ENERGY_SAVINGS_LEVEL: {
 245                         state = point.getEnum();
 246                         break;
 247                     }
 248                     case CHA_OUTPUT_STATE: {
 249                         state = point.getEnum();
 250                         // convert the state text "Neither" to the easier to understand word "Off"
 251                         if (STATE_NEITHER.equals(state.toString())) {
 252                             state = new StringType(STATE_OFF);
 253                         }
 254                         break;
 255                     }
 256                     case CHA_STAT_AUTO_MODE: {
 257                         state = OnOffType.from(point.getPresentPriority() > 13
 258                                 || points.getPointByClass(HIE_STAT_OCC_MODE_PRESENT).asInt() == 2);
 259                         break;
 260                     }
 261                     case CHA_STAT_OCC_MODE_PRESENT: {
 262                         state = OnOffType.from(point.asInt() == 3);
 263                         break;
 264                     }
 265                     case CHA_DHW_AUTO_MODE: {
 266                         state = OnOffType.from(point.getPresentPriority() > 13);
 267                         break;
 268                     }
 269                     case CHA_DHW_OUTPUT_STATE: {
 270                         state = OnOffType.from(point.asInt() == 2);
 271                         break;
 272                     }
 273                 }
 274
 275                 if (state != null) {
 276                     updateState(channel.id, state);
 277                 }
 278             }
 279         } catch (RdsCloudException e) {
 280             logger.warn(LOG_SYSTEM_EXCEPTION, "doPollNow()", e.getClass().getName(), e.getMessage());
 281         }
 282     }
 283
 284     /*
 285      * private method: sends a new channel value to the cloud server
 286      */
 287     private synchronized void doHandleCommand(String channelId, Command command) {
 288         RdsDataPoints points = this.points;
 289         try {
 290             RdsCloudHandler cloud = getCloudHandler();
 291
 292             String apiKey = cloud.getApiKey();
 293             String token = cloud.getToken();
 294
 295             if ((points == null || (!points.refresh(apiKey, token)))) {
 296                 points = fetchPoints();
 297             }
 298
 299             if (points == null) {
 300                 throw new RdsCloudException("missing data points");
 301             }
 302
 303             for (ChannelMap channel : CHAN_MAP) {
 304                 if (channelId.equals(channel.id)) {
 305                     switch (channel.id) {
 306                         case CHA_TARGET_TEMP: {
 307                             Command doCommand = command;
 308                             if (command instanceof QuantityType<?>) {
 309                                 Unit<?> unit = points.getPointByClass(channel.clazz).getUnit();
 310                                 QuantityType<?> temp = ((QuantityType<?>) command).toUnit(unit);
 311                                 if (temp != null) {
 312                                     doCommand = temp;
 313                                 }
 314                             }
 315                             points.setValue(apiKey, token, channel.clazz, doCommand.format("%s"));
 316                             debouncer.initialize(channelId);
 317                             break;
 318                         }
 319                         case CHA_STAT_AUTO_MODE: {
 320                             /*
 321                              * this command is particularly funky.. use Green Leaf = 5 to set to Auto, and
 322                              * use Comfort Button = 1 to set to Manual
 323                              */
 324                             if (command == OnOffType.ON) {
 325                                 points.setValue(apiKey, token, HIE_ENERGY_SAVINGS_LEVEL, "5");
 326                             } else {
 327                                 points.setValue(apiKey, token, HIE_STAT_CMF_BTN, "1");
 328                             }
 329                             debouncer.initialize(channelId);
 330                             break;
 331                         }
 332                         case CHA_STAT_OCC_MODE_PRESENT: {
 333                             points.setValue(apiKey, token, channel.clazz, command == OnOffType.OFF ? "2" : "3");
 334                             debouncer.initialize(channelId);
 335                             break;
 336                         }
 337                         case CHA_DHW_AUTO_MODE: {
 338                             if (command == OnOffType.ON) {
 339                                 points.setValue(apiKey, token, channel.clazz, "0");
 340                             } else {
 341                                 points.setValue(apiKey, token, channel.clazz,
 342                                         Integer.toString(points.getPointByClass(channel.clazz).asInt()));
 343                             }
 344                             debouncer.initialize(channelId);
 345                             break;
 346                         }
 347                         case CHA_DHW_OUTPUT_STATE: {
 348                             points.setValue(apiKey, token, channel.clazz, command == OnOffType.OFF ? "1" : "2");
 349                             debouncer.initialize(channelId);
 350                             break;
 351                         }
 352                         case CHA_ROOM_TEMP:
 353                         case CHA_ROOM_HUMIDITY:
 354                         case CHA_OUTSIDE_TEMP:
 355                         case CHA_ROOM_AIR_QUALITY:
 356                         case CHA_OUTPUT_STATE: {
 357                             logger.debug("error: unexpected command to channel {}", channel.id);
 358                             break;
 359                         }
 360                     }
 361                     break;
 362                 }
 363             }
 364         } catch (RdsCloudException e) {
 365             logger.warn(LOG_SYSTEM_EXCEPTION, "doHandleCommand()", e.getClass().getName(), e.getMessage());
 366         }
 367     }
 368
 369     /*
 370      * private method: returns the cloud server handler
 371      */
 372     private RdsCloudHandler getCloudHandler() throws RdsCloudException {
 373         @Nullable
 374         Bridge b;
 375         @Nullable
 376         BridgeHandler h;
 377
 378         if ((b = getBridge()) != null && (h = b.getHandler()) != null && h instanceof RdsCloudHandler) {
 379             return (RdsCloudHandler) h;
 380         }
 381         throw new RdsCloudException("no cloud handler found");
 382     }
 383
 384     public @Nullable RdsDataPoints fetchPoints() {
 385         RdsConfiguration config = this.config;
 386         try {
 387             if (config == null) {
 388                 throw new RdsCloudException("missing configuration");
 389             }
 390
 391             String url = String.format(URL_POINTS, config.plantId);
 392
 393             if (logger.isTraceEnabled()) {
 394                 logger.trace(LOG_HTTP_COMMAND, HTTP_GET, url.length());
 395                 logger.trace(LOG_PAYLOAD_FMT, LOG_SENDING_MARK, url);
 396             } else if (logger.isDebugEnabled()) {
 397                 logger.debug(LOG_HTTP_COMMAND_ABR, HTTP_GET, url.length());
 398                 logger.debug(LOG_PAYLOAD_FMT_ABR, LOG_SENDING_MARK, url.substring(0, Math.min(url.length(), 30)));
 399             }
 400
 401             RdsCloudHandler cloud = getCloudHandler();
 402             String apiKey = cloud.getApiKey();
 403             String token = cloud.getToken();
 404
 405             String json = RdsDataPoints.httpGenericGetJson(apiKey, token, url);
 406
 407             if (logger.isTraceEnabled()) {
 408                 logger.trace(LOG_CONTENT_LENGTH, LOG_RECEIVED_MSG, json.length());
 409                 logger.trace(LOG_PAYLOAD_FMT, LOG_RECEIVED_MARK, json);
 410             } else if (logger.isDebugEnabled()) {
 411                 logger.debug(LOG_CONTENT_LENGTH_ABR, LOG_RECEIVED_MSG, json.length());
 412                 logger.debug(LOG_PAYLOAD_FMT_ABR, LOG_RECEIVED_MARK, json.substring(0, Math.min(json.length(), 30)));
 413             }
 414
 415             return this.points = RdsDataPoints.createFromJson(json);
 416         } catch (RdsCloudException e) {
 417             logger.warn(LOG_SYSTEM_EXCEPTION, "fetchPoints()", e.getClass().getName(), e.getMessage());
 418         } catch (JsonParseException | IOException e) {
 419             logger.warn(LOG_RUNTIME_EXCEPTION, "fetchPoints()", e.getClass().getName(), e.getMessage());
 420         }
 421         return this.points = null;
 422     }
 423 }