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

   1 /**
   2  * Copyright (c) 2010-2020 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.nikohomecontrol.internal.protocol.nhc2;
  14
  15 import static org.openhab.binding.nikohomecontrol.internal.protocol.NikoHomeControlConstants.*;
  16
  17 import java.lang.reflect.Type;
  18 import java.net.InetAddress;
  19 import java.security.cert.CertificateException;
  20 import java.util.ArrayList;
  21 import java.util.List;
  22 import java.util.NoSuchElementException;
  23 import java.util.Objects;
  24 import java.util.Optional;
  25 import java.util.concurrent.CompletableFuture;
  26 import java.util.concurrent.CopyOnWriteArrayList;
  27 import java.util.concurrent.ExecutionException;
  28 import java.util.concurrent.ScheduledExecutorService;
  29 import java.util.concurrent.TimeUnit;
  30 import java.util.concurrent.TimeoutException;
  31 import java.util.stream.Collectors;
  32 import java.util.stream.IntStream;
  33
  34 import org.eclipse.jdt.annotation.NonNullByDefault;
  35 import org.eclipse.jdt.annotation.Nullable;
  36 import org.openhab.binding.nikohomecontrol.internal.protocol.NhcControllerEvent;
  37 import org.openhab.binding.nikohomecontrol.internal.protocol.NikoHomeControlCommunication;
  38 import org.openhab.binding.nikohomecontrol.internal.protocol.NikoHomeControlConstants.ActionType;
  39 import org.openhab.binding.nikohomecontrol.internal.protocol.nhc2.NhcDevice2.NhcProperty;
  40 import org.openhab.binding.nikohomecontrol.internal.protocol.nhc2.NhcMessage2.NhcMessageParam;
  41 import org.openhab.core.io.transport.mqtt.MqttConnectionObserver;
  42 import org.openhab.core.io.transport.mqtt.MqttConnectionState;
  43 import org.openhab.core.io.transport.mqtt.MqttException;
  44 import org.openhab.core.io.transport.mqtt.MqttMessageSubscriber;
  45 import org.slf4j.Logger;
  46 import org.slf4j.LoggerFactory;
  47
  48 import com.google.gson.FieldNamingPolicy;
  49 import com.google.gson.Gson;
  50 import com.google.gson.GsonBuilder;
  51 import com.google.gson.JsonSyntaxException;
  52 import com.google.gson.reflect.TypeToken;
  53
  54 /**
  55  * The {@link NikoHomeControlCommunication2} class is able to do the following tasks with Niko Home Control II
  56  * systems:
  57  * <ul>
  58  * <li>Start and stop MQTT connection with Niko Home Control II Connected Controller.
  59  * <li>Read all setup and status information from the Niko Home Control Controller.
  60  * <li>Execute Niko Home Control commands.
  61  * <li>Listen for events from Niko Home Control.
  62  * </ul>
  63  *
  64  * @author Mark Herwege - Initial Contribution
  65  */
  66 @NonNullByDefault
  67 public class NikoHomeControlCommunication2 extends NikoHomeControlCommunication
  68         implements MqttMessageSubscriber, MqttConnectionObserver {
  69
  70     private final Logger logger = LoggerFactory.getLogger(NikoHomeControlCommunication2.class);
  71
  72     private final NhcMqttConnection2 mqttConnection;
  73
  74     private final List<NhcService2> services = new CopyOnWriteArrayList<>();
  75
  76     private volatile String profile = "";
  77
  78     private volatile @Nullable NhcSystemInfo2 nhcSystemInfo;
  79     private volatile @Nullable NhcTimeInfo2 nhcTimeInfo;
  80
  81     private volatile @Nullable CompletableFuture<Boolean> communicationStarted;
  82
  83     private ScheduledExecutorService scheduler;
  84
  85     private final Gson gson = new GsonBuilder().setFieldNamingPolicy(FieldNamingPolicy.UPPER_CAMEL_CASE).create();
  86
  87     /**
  88      * Constructor for Niko Home Control communication object, manages communication with
  89      * Niko Home Control II Connected Controller.
  90      *
  91      * @throws CertificateException when the SSL context for MQTT communication cannot be created
  92      * @throws UnknownHostException when the IP address is not provided
  93      *
  94      */
  95     public NikoHomeControlCommunication2(NhcControllerEvent handler, String clientId,
  96             ScheduledExecutorService scheduler) throws CertificateException {
  97         super(handler);
  98         mqttConnection = new NhcMqttConnection2(clientId, this, this);
  99         this.scheduler = scheduler;
 100     }
 101
 102     @Override
 103     public synchronized void startCommunication() {
 104         communicationStarted = new CompletableFuture<>();
 105
 106         InetAddress addr = handler.getAddr();
 107         if (addr == null) {
 108             logger.warn("Niko Home Control: IP address cannot be empty");
 109             stopCommunication();
 110             return;
 111         }
 112         String addrString = addr.getHostAddress();
 113         int port = handler.getPort();
 114         logger.debug("Niko Home Control: initializing for mqtt connection to CoCo on {}:{}", addrString, port);
 115
 116         profile = handler.getProfile();
 117
 118         String token = handler.getToken();
 119         if (token.isEmpty()) {
 120             logger.warn("Niko Home Control: JWT token cannot be empty");
 121             stopCommunication();
 122             return;
 123         }
 124
 125         try {
 126             mqttConnection.startConnection(addrString, port, profile, token);
 127             initialize();
 128         } catch (MqttException e) {
 129             logger.warn("Niko Home Control: error in mqtt communication");
 130             stopCommunication();
 131         }
 132     }
 133
 134     @Override
 135     public synchronized void stopCommunication() {
 136         CompletableFuture<Boolean> started = communicationStarted;
 137         if (started != null) {
 138             started.complete(false);
 139         }
 140         communicationStarted = null;
 141         mqttConnection.stopConnection();
 142     }
 143
 144     @Override
 145     public boolean communicationActive() {
 146         CompletableFuture<Boolean> started = communicationStarted;
 147         if (started == null) {
 148             return false;
 149         }
 150         try {
 151             // Wait until we received all devices info to confirm we are active.
 152             return started.get(5000, TimeUnit.MILLISECONDS);
 153         } catch (InterruptedException | ExecutionException | TimeoutException e) {
 154             logger.debug("Niko Home Control: exception waiting for connection start");
 155             return false;
 156         }
 157     }
 158
 159     /**
 160      * After setting up the communication with the Niko Home Control Connected Controller, send all initialization
 161      * messages.
 162      *
 163      */
 164     private void initialize() throws MqttException {
 165         NhcMessage2 message = new NhcMessage2();
 166
 167         message.method = "systeminfo.publish";
 168         mqttConnection.connectionPublish(profile + "/system/cmd", gson.toJson(message));
 169
 170         message.method = "services.list";
 171         mqttConnection.connectionPublish(profile + "/authentication/cmd", gson.toJson(message));
 172
 173         message.method = "devices.list";
 174         mqttConnection.connectionPublish(profile + "/control/devices/cmd", gson.toJson(message));
 175
 176         message.method = "notifications.list";
 177         mqttConnection.connectionPublish(profile + "/notification/cmd", gson.toJson(message));
 178     }
 179
 180     private void connectionLost() {
 181         logger.debug("Niko Home Control: connection lost");
 182         stopCommunication();
 183         handler.controllerOffline();
 184     }
 185
 186     private void systemEvt(String response) {
 187         Type messageType = new TypeToken<NhcMessage2>() {
 188         }.getType();
 189         List<NhcTimeInfo2> timeInfo = null;
 190         List<NhcSystemInfo2> systemInfo = null;
 191         try {
 192             NhcMessage2 message = gson.fromJson(response, messageType);
 193             List<NhcMessageParam> messageParams = message.params;
 194             if (messageParams != null) {
 195                 timeInfo = messageParams.stream().filter(p -> (p.timeInfo != null)).findFirst().get().timeInfo;
 196                 systemInfo = messageParams.stream().filter(p -> (p.systemInfo != null)).findFirst().get().systemInfo;
 197             }
 198         } catch (JsonSyntaxException e) {
 199             logger.debug("Niko Home Control: unexpected json {}", response);
 200         } catch (NoSuchElementException ignore) {
 201             // Ignore if timeInfo not present in response, this should not happen in a timeInfo response
 202         }
 203         if (timeInfo != null) {
 204             nhcTimeInfo = timeInfo.get(0);
 205         }
 206         if (systemInfo != null) {
 207             nhcSystemInfo = systemInfo.get(0);
 208             handler.updatePropertiesEvent();
 209         }
 210     }
 211
 212     private void systeminfoPublishRsp(String response) {
 213         Type messageType = new TypeToken<NhcMessage2>() {
 214         }.getType();
 215         List<NhcSystemInfo2> systemInfo = null;
 216         try {
 217             NhcMessage2 message = gson.fromJson(response, messageType);
 218             List<NhcMessageParam> messageParams = message.params;
 219             if (messageParams != null) {
 220                 systemInfo = messageParams.stream().filter(p -> (p.systemInfo != null)).findFirst().get().systemInfo;
 221             }
 222         } catch (JsonSyntaxException e) {
 223             logger.debug("Niko Home Control: unexpected json {}", response);
 224         } catch (NoSuchElementException ignore) {
 225             // Ignore if systemInfo not present in response, this should not happen in a systemInfo response
 226         }
 227         if (systemInfo != null) {
 228             nhcSystemInfo = systemInfo.get(0);
 229         }
 230     }
 231
 232     private void servicesListRsp(String response) {
 233         Type messageType = new TypeToken<NhcMessage2>() {
 234         }.getType();
 235         List<NhcService2> serviceList = null;
 236         try {
 237             NhcMessage2 message = gson.fromJson(response, messageType);
 238             List<NhcMessageParam> messageParams = message.params;
 239             if (messageParams != null) {
 240                 serviceList = messageParams.stream().filter(p -> (p.services != null)).findFirst().get().services;
 241             }
 242         } catch (JsonSyntaxException e) {
 243             logger.debug("Niko Home Control: unexpected json {}", response);
 244         } catch (NoSuchElementException ignore) {
 245             // Ignore if services not present in response, this should not happen in a services response
 246         }
 247         services.clear();
 248         if (serviceList != null) {
 249             services.addAll(serviceList);
 250         }
 251     }
 252
 253     private void devicesListRsp(String response) {
 254         Type messageType = new TypeToken<NhcMessage2>() {
 255         }.getType();
 256         List<NhcDevice2> deviceList = null;
 257         try {
 258             NhcMessage2 message = gson.fromJson(response, messageType);
 259             List<NhcMessageParam> messageParams = message.params;
 260             if (messageParams != null) {
 261                 deviceList = messageParams.stream().filter(p -> (p.devices != null)).findFirst().get().devices;
 262             }
 263         } catch (JsonSyntaxException e) {
 264             logger.debug("Niko Home Control: unexpected json {}", response);
 265         } catch (NoSuchElementException ignore) {
 266             // Ignore if devices not present in response, this should not happen in a devices response
 267         }
 268         if (deviceList == null) {
 269             return;
 270         }
 271
 272         for (NhcDevice2 device : deviceList) {
 273             addDevice(device);
 274             updateState(device);
 275         }
 276
 277         // Once a devices list response is received, we know the communication is fully started.
 278         logger.debug("Niko Home Control: Communication start complete.");
 279         handler.controllerOnline();
 280         CompletableFuture<Boolean> future = communicationStarted;
 281         if (future != null) {
 282             future.complete(true);
 283         }
 284     }
 285
 286     private void devicesEvt(String response) {
 287         Type messageType = new TypeToken<NhcMessage2>() {
 288         }.getType();
 289         List<NhcDevice2> deviceList = null;
 290         String method = null;
 291         try {
 292             NhcMessage2 message = gson.fromJson(response, messageType);
 293             method = message.method;
 294             List<NhcMessageParam> messageParams = message.params;
 295             if (messageParams != null) {
 296                 deviceList = messageParams.stream().filter(p -> (p.devices != null)).findFirst().get().devices;
 297             }
 298         } catch (JsonSyntaxException e) {
 299             logger.debug("Niko Home Control: unexpected json {}", response);
 300         } catch (NoSuchElementException ignore) {
 301             // Ignore if devices not present in response, this should not happen in a devices event
 302         }
 303         if (deviceList == null) {
 304             return;
 305         }
 306
 307         if ("devices.removed".equals(method)) {
 308             deviceList.forEach(this::removeDevice);
 309             return;
 310         } else if ("devices.added".equals(method)) {
 311             deviceList.forEach(this::addDevice);
 312         } else if ("devices.changed".contentEquals(method)) {
 313             deviceList.forEach(this::removeDevice);
 314             deviceList.forEach(this::addDevice);
 315         }
 316
 317         deviceList.forEach(this::updateState);
 318     }
 319
 320     private void notificationEvt(String response) {
 321         Type messageType = new TypeToken<NhcMessage2>() {
 322         }.getType();
 323         List<NhcNotification2> notificationList = null;
 324         try {
 325             NhcMessage2 message = gson.fromJson(response, messageType);
 326             List<NhcMessageParam> messageParams = message.params;
 327             if (messageParams != null) {
 328                 notificationList = messageParams.stream().filter(p -> (p.notifications != null)).findFirst()
 329                         .get().notifications;
 330             }
 331         } catch (JsonSyntaxException e) {
 332             logger.debug("Niko Home Control: unexpected json {}", response);
 333         } catch (NoSuchElementException ignore) {
 334             // Ignore if notifications not present in response, this should not happen in a notifications event
 335         }
 336         logger.debug("Niko Home Control: notifications {}", notificationList);
 337         if (notificationList == null) {
 338             return;
 339         }
 340
 341         for (NhcNotification2 notification : notificationList) {
 342             if ("new".equals(notification.status)) {
 343                 String alarmText = notification.text;
 344                 switch (notification.type) {
 345                     case "alarm":
 346                         handler.alarmEvent(alarmText);
 347                         break;
 348                     case "notification":
 349                         handler.noticeEvent(alarmText);
 350                         break;
 351                     default:
 352                         logger.debug("Niko Home Control: unexpected message type {}", notification.type);
 353                 }
 354             }
 355         }
 356     }
 357
 358     private void addDevice(NhcDevice2 device) {
 359         String location = null;
 360         if (device.parameters != null) {
 361             location = device.parameters.stream().map(p -> p.locationName).filter(Objects::nonNull).findFirst()
 362                     .orElse(null);
 363         }
 364
 365         if ("action".equals(device.type)) {
 366             if (!actions.containsKey(device.uuid)) {
 367                 logger.debug("Niko Home Control: adding action device {}, {}", device.uuid, device.name);
 368
 369                 ActionType actionType;
 370                 switch (device.model) {
 371                     case "generic":
 372                     case "pir":
 373                     case "simulation":
 374                     case "comfort":
 375                     case "alarms":
 376                     case "alloff":
 377                     case "overallcomfort":
 378                     case "garagedoor":
 379                         actionType = ActionType.TRIGGER;
 380                         break;
 381                     case "light":
 382                     case "socket":
 383                     case "switched-generic":
 384                     case "switched-fan":
 385                         actionType = ActionType.RELAY;
 386                         break;
 387                     case "dimmer":
 388                         actionType = ActionType.DIMMER;
 389                         break;
 390                     case "rolldownshutter":
 391                     case "sunblind":
 392                     case "venetianblind":
 393                     case "gate":
 394                         actionType = ActionType.ROLLERSHUTTER;
 395                         break;
 396                     default:
 397                         actionType = ActionType.GENERIC;
 398                         logger.debug("Niko Home Control: device type {} not recognised, default to GENERIC action",
 399                                 device.type);
 400                 }
 401
 402                 NhcAction2 nhcAction = new NhcAction2(device.uuid, device.name, device.model, device.technology,
 403                         actionType, location, this);
 404                 actions.put(device.uuid, nhcAction);
 405             }
 406         } else if ("thermostat".equals(device.type)) {
 407             if (!thermostats.containsKey(device.uuid)) {
 408                 logger.debug("Niko Home Control: adding thermostat device {}, {}", device.uuid, device.name);
 409
 410                 NhcThermostat2 nhcThermostat = new NhcThermostat2(device.uuid, device.name, device.model,
 411                         device.technology, location, this);
 412                 thermostats.put(device.uuid, nhcThermostat);
 413             }
 414         } else if ("centralmeter".equals(device.type)) {
 415             if (!energyMeters.containsKey(device.uuid)) {
 416                 logger.debug("Niko Home Control: adding centralmeter device {}, {}", device.uuid, device.name);
 417                 NhcEnergyMeter2 nhcEnergyMeter = new NhcEnergyMeter2(device.uuid, device.name, device.model,
 418                         device.technology, this, scheduler);
 419                 energyMeters.put(device.uuid, nhcEnergyMeter);
 420             }
 421         } else {
 422             logger.debug("Niko Home Control: device type {} not supported for {}, {}", device.type, device.uuid,
 423                     device.name);
 424         }
 425     }
 426
 427     private void removeDevice(NhcDevice2 device) {
 428         if (actions.containsKey(device.uuid)) {
 429             actions.get(device.uuid).actionRemoved();
 430             actions.remove(device.uuid);
 431         } else if (thermostats.containsKey(device.uuid)) {
 432             thermostats.get(device.uuid).thermostatRemoved();
 433             thermostats.remove(device.uuid);
 434         } else if (energyMeters.containsKey(device.uuid)) {
 435             energyMeters.get(device.uuid).energyMeterRemoved();
 436             energyMeters.remove(device.uuid);
 437         }
 438     }
 439
 440     private void updateState(NhcDevice2 device) {
 441         List<NhcProperty> deviceProperties = device.properties;
 442         if (deviceProperties == null) {
 443             logger.debug("Cannot Update state for {} as no properties defined in device message", device.uuid);
 444             return;
 445         }
 446
 447         if (actions.containsKey(device.uuid)) {
 448             updateActionState((NhcAction2) actions.get(device.uuid), deviceProperties);
 449         } else if (thermostats.containsKey(device.uuid)) {
 450             updateThermostatState((NhcThermostat2) thermostats.get(device.uuid), deviceProperties);
 451         } else if (energyMeters.containsKey(device.uuid)) {
 452             updateEnergyMeterState((NhcEnergyMeter2) energyMeters.get(device.uuid), deviceProperties);
 453         }
 454     }
 455
 456     private void updateActionState(NhcAction2 action, List<NhcProperty> deviceProperties) {
 457         if (action.getType() == ActionType.ROLLERSHUTTER) {
 458             updateRollershutterState(action, deviceProperties);
 459         } else {
 460             updateLightState(action, deviceProperties);
 461         }
 462     }
 463
 464     private void updateLightState(NhcAction2 action, List<NhcProperty> deviceProperties) {
 465         Optional<NhcProperty> statusProperty = deviceProperties.stream().filter(p -> (p.status != null)).findFirst();
 466         Optional<NhcProperty> dimmerProperty = deviceProperties.stream().filter(p -> (p.brightness != null))
 467                 .findFirst();
 468         Optional<NhcProperty> basicStateProperty = deviceProperties.stream().filter(p -> (p.basicState != null))
 469                 .findFirst();
 470
 471         String booleanState = null;
 472         if (statusProperty.isPresent()) {
 473             booleanState = statusProperty.get().status;
 474         } else if (basicStateProperty.isPresent()) {
 475             booleanState = basicStateProperty.get().basicState;
 476         }
 477
 478         if (booleanState != null) {
 479             if (NHCON.equals(booleanState)) {
 480                 action.setBooleanState(true);
 481                 logger.debug("Niko Home Control: setting action {} internally to ON", action.getId());
 482             } else if (NHCOFF.equals(booleanState)) {
 483                 action.setBooleanState(false);
 484                 logger.debug("Niko Home Control: setting action {} internally to OFF", action.getId());
 485             }
 486         }
 487
 488         if (dimmerProperty.isPresent()) {
 489             action.setState(Integer.parseInt(dimmerProperty.get().brightness));
 490             logger.debug("Niko Home Control: setting action {} internally to {}", action.getId(),
 491                     dimmerProperty.get().brightness);
 492         }
 493     }
 494
 495     private void updateRollershutterState(NhcAction2 action, List<NhcProperty> deviceProperties) {
 496         deviceProperties.stream().map(p -> p.position).filter(Objects::nonNull).findFirst().ifPresent(position -> {
 497             try {
 498                 action.setState(Integer.parseInt(position));
 499                 logger.debug("Niko Home Control: setting action {} internally to {}", action.getId(), position);
 500             } catch (NumberFormatException e) {
 501                 logger.trace("Niko Home Control: received empty rollershutter {} position info", action.getId());
 502             }
 503         });
 504     }
 505
 506     private void updateThermostatState(NhcThermostat2 thermostat, List<NhcProperty> deviceProperties) {
 507         Optional<Boolean> overruleActiveProperty = deviceProperties.stream().map(p -> p.overruleActive)
 508                 .filter(Objects::nonNull).map(t -> Boolean.parseBoolean(t)).findFirst();
 509         Optional<Integer> overruleSetpointProperty = deviceProperties.stream().map(p -> p.overruleSetpoint)
 510                 .filter(s -> !((s == null) || s.isEmpty())).map(t -> Math.round(Float.parseFloat(t) * 10)).findFirst();
 511         Optional<Integer> overruleTimeProperty = deviceProperties.stream().map(p -> p.overruleTime)
 512                 .filter(s -> !((s == null) || s.isEmpty())).map(t -> Math.round(Float.parseFloat(t))).findFirst();
 513         Optional<Integer> setpointTemperatureProperty = deviceProperties.stream().map(p -> p.setpointTemperature)
 514                 .filter(s -> !((s == null) || s.isEmpty())).map(t -> Math.round(Float.parseFloat(t) * 10)).findFirst();
 515         Optional<Boolean> ecoSaveProperty = deviceProperties.stream().map(p -> p.ecoSave).filter(Objects::nonNull)
 516                 .map(t -> Boolean.parseBoolean(t)).findFirst();
 517         Optional<Integer> ambientTemperatureProperty = deviceProperties.stream().map(p -> p.ambientTemperature)
 518                 .filter(s -> !(s == null || s.isEmpty())).map(t -> Math.round(Float.parseFloat(t) * 10)).findFirst();
 519         Optional<@Nullable String> demandProperty = deviceProperties.stream().map(p -> p.demand)
 520                 .filter(Objects::nonNull).findFirst();
 521         Optional<@Nullable String> operationModeProperty = deviceProperties.stream().map(p -> p.operationMode)
 522                 .filter(Objects::nonNull).findFirst();
 523
 524         String modeString = deviceProperties.stream().map(p -> p.program).filter(Objects::nonNull).findFirst()
 525                 .orElse("");
 526         int mode = IntStream.range(0, THERMOSTATMODES.length).filter(i -> THERMOSTATMODES[i].equals(modeString))
 527                 .findFirst().orElse(thermostat.getMode());
 528
 529         int measured = ambientTemperatureProperty.orElse(thermostat.getMeasured());
 530         int setpoint = setpointTemperatureProperty.orElse(thermostat.getSetpoint());
 531
 532         int overrule = thermostat.getOverrule();
 533         int overruletime = thermostat.getRemainingOverruletime();
 534         if (overruleActiveProperty.orElse(false)) {
 535             overrule = overruleSetpointProperty.orElse(0);
 536             overruletime = overruleTimeProperty.orElse(0);
 537         }
 538
 539         int ecosave = thermostat.getEcosave();
 540         if (ecoSaveProperty.orElse(false)) {
 541             ecosave = 1;
 542         }
 543
 544         int demand = thermostat.getDemand();
 545         String demandString = demandProperty.orElse(operationModeProperty.orElse(""));
 546         demandString = demandString == null ? "" : demandString;
 547         switch (demandString) {
 548             case "None":
 549                 demand = 0;
 550                 break;
 551             case "Heating":
 552                 demand = 1;
 553                 break;
 554             case "Cooling":
 555                 demand = -1;
 556                 break;
 557         }
 558
 559         logger.debug(
 560                 "Niko Home Control: setting thermostat {} with measured {}, setpoint {}, mode {}, overrule {}, overruletime {}, ecosave {}, demand {}",
 561                 thermostat.getId(), measured, setpoint, mode, overrule, overruletime, ecosave, demand);
 562         thermostat.updateState(measured, setpoint, mode, overrule, overruletime, ecosave, demand);
 563     }
 564
 565     private void updateEnergyMeterState(NhcEnergyMeter2 energyMeter, List<NhcProperty> deviceProperties) {
 566         deviceProperties.stream().map(p -> p.electricalPower).filter(Objects::nonNull).findFirst()
 567                 .ifPresent(electricalPower -> {
 568                     try {
 569                         energyMeter.setPower(Integer.parseInt(electricalPower));
 570                         logger.trace("Niko Home Control: setting energy meter {} power to {}", energyMeter.getId(),
 571                                 electricalPower);
 572                     } catch (NumberFormatException e) {
 573                         energyMeter.setPower(null);
 574                         logger.trace("Niko Home Control: received empty energy meter {} power reading",
 575                                 energyMeter.getId());
 576                     }
 577                 });
 578     }
 579
 580     @Override
 581     public void executeAction(String actionId, String value) {
 582         NhcMessage2 message = new NhcMessage2();
 583
 584         message.method = "devices.control";
 585         ArrayList<NhcMessageParam> params = new ArrayList<>();
 586         NhcMessageParam param = new NhcMessageParam();
 587         params.add(param);
 588         message.params = params;
 589         ArrayList<NhcDevice2> devices = new ArrayList<>();
 590         NhcDevice2 device = new NhcDevice2();
 591         devices.add(device);
 592         param.devices = devices;
 593         device.uuid = actionId;
 594         ArrayList<NhcProperty> deviceProperties = new ArrayList<>();
 595         NhcProperty property = new NhcProperty();
 596         deviceProperties.add(property);
 597         device.properties = deviceProperties;
 598
 599         NhcAction2 action = (NhcAction2) actions.get(actionId);
 600
 601         switch (action.getType()) {
 602             case GENERIC:
 603             case TRIGGER:
 604                 property.basicState = NHCTRIGGERED;
 605                 break;
 606             case RELAY:
 607                 property.status = value;
 608                 break;
 609             case DIMMER:
 610                 if (NHCON.equals(value)) {
 611                     action.setBooleanState(true); // this will trigger sending the stored brightness value event out
 612                     property.status = value;
 613                 } else if (NHCOFF.equals(value)) {
 614                     property.status = value;
 615                 } else {
 616                     // If the light is off, turn the light on before sending the brightness value, needs to happen
 617                     // in 2 separate messages.
 618                     if (!action.booleanState()) {
 619                         executeAction(actionId, NHCON);
 620                     }
 621                     property.brightness = value;
 622                 }
 623                 break;
 624             case ROLLERSHUTTER:
 625                 if (NHCSTOP.equals(value)) {
 626                     property.action = value;
 627                 } else if (NHCUP.equals(value)) {
 628                     property.position = "100";
 629                 } else if (NHCDOWN.equals(value)) {
 630                     property.position = "0";
 631                 } else {
 632                     int position = 100 - Integer.parseInt(value);
 633                     property.position = String.valueOf(position);
 634                 }
 635                 break;
 636         }
 637
 638         String topic = profile + "/control/devices/cmd";
 639         String gsonMessage = gson.toJson(message);
 640         sendDeviceMessage(topic, gsonMessage);
 641     }
 642
 643     @Override
 644     public void executeThermostat(String thermostatId, String mode) {
 645         NhcMessage2 message = new NhcMessage2();
 646
 647         message.method = "devices.control";
 648         ArrayList<NhcMessageParam> params = new ArrayList<>();
 649         NhcMessageParam param = new NhcMessageParam();
 650         params.add(param);
 651         message.params = params;
 652         ArrayList<NhcDevice2> devices = new ArrayList<>();
 653         NhcDevice2 device = new NhcDevice2();
 654         devices.add(device);
 655         param.devices = devices;
 656         device.uuid = thermostatId;
 657         ArrayList<NhcProperty> deviceProperties = new ArrayList<>();
 658
 659         NhcProperty overruleActiveProp = new NhcProperty();
 660         deviceProperties.add(overruleActiveProp);
 661         overruleActiveProp.overruleActive = "False";
 662
 663         NhcProperty program = new NhcProperty();
 664         deviceProperties.add(program);
 665         program.program = mode;
 666
 667         device.properties = deviceProperties;
 668
 669         String topic = profile + "/control/devices/cmd";
 670         String gsonMessage = gson.toJson(message);
 671         sendDeviceMessage(topic, gsonMessage);
 672     }
 673
 674     @Override
 675     public void executeThermostat(String thermostatId, int overruleTemp, int overruleTime) {
 676         NhcMessage2 message = new NhcMessage2();
 677
 678         message.method = "devices.control";
 679         ArrayList<NhcMessageParam> params = new ArrayList<>();
 680         NhcMessageParam param = new NhcMessageParam();
 681         params.add(param);
 682         message.params = params;
 683         ArrayList<NhcDevice2> devices = new ArrayList<>();
 684         NhcDevice2 device = new NhcDevice2();
 685         devices.add(device);
 686         param.devices = devices;
 687         device.uuid = thermostatId;
 688         ArrayList<NhcProperty> deviceProperties = new ArrayList<>();
 689
 690         if (overruleTime > 0) {
 691             NhcProperty overruleActiveProp = new NhcProperty();
 692             overruleActiveProp.overruleActive = "True";
 693             deviceProperties.add(overruleActiveProp);
 694
 695             NhcProperty overruleSetpointProp = new NhcProperty();
 696             overruleSetpointProp.overruleSetpoint = String.valueOf(overruleTemp / 10.0);
 697             deviceProperties.add(overruleSetpointProp);
 698
 699             NhcProperty overruleTimeProp = new NhcProperty();
 700             overruleTimeProp.overruleTime = String.valueOf(overruleTime);
 701             deviceProperties.add(overruleTimeProp);
 702         } else {
 703             NhcProperty overruleActiveProp = new NhcProperty();
 704             overruleActiveProp.overruleActive = "False";
 705             deviceProperties.add(overruleActiveProp);
 706         }
 707         device.properties = deviceProperties;
 708
 709         String topic = profile + "/control/devices/cmd";
 710         String gsonMessage = gson.toJson(message);
 711         sendDeviceMessage(topic, gsonMessage);
 712     }
 713
 714     @Override
 715     public void startEnergyMeter(String energyMeterId) {
 716         NhcMessage2 message = new NhcMessage2();
 717
 718         message.method = "devices.control";
 719         ArrayList<NhcMessageParam> params = new ArrayList<>();
 720         NhcMessageParam param = new NhcMessageParam();
 721         params.add(param);
 722         message.params = params;
 723         ArrayList<NhcDevice2> devices = new ArrayList<>();
 724         NhcDevice2 device = new NhcDevice2();
 725         devices.add(device);
 726         param.devices = devices;
 727         device.uuid = energyMeterId;
 728         ArrayList<NhcProperty> deviceProperties = new ArrayList<>();
 729
 730         NhcProperty reportInstantUsageProp = new NhcProperty();
 731         deviceProperties.add(reportInstantUsageProp);
 732         reportInstantUsageProp.reportInstantUsage = "True";
 733         device.properties = deviceProperties;
 734
 735         String topic = profile + "/control/devices/cmd";
 736         String gsonMessage = gson.toJson(message);
 737
 738         ((NhcEnergyMeter2) energyMeters.get(energyMeterId)).startEnergyMeter(topic, gsonMessage);
 739     }
 740
 741     @Override
 742     public void stopEnergyMeter(String energyMeterId) {
 743         ((NhcEnergyMeter2) energyMeters.get(energyMeterId)).stopEnergyMeter();
 744     }
 745
 746     /**
 747      * Method called from the {@link NhcEnergyMeter2} object to send message to Niko Home Control.
 748      *
 749      * @param topic
 750      * @param gsonMessage
 751      */
 752     public void executeEnergyMeter(String topic, String gsonMessage) {
 753         sendDeviceMessage(topic, gsonMessage);
 754     }
 755
 756     private void sendDeviceMessage(String topic, String gsonMessage) {
 757         try {
 758             mqttConnection.connectionPublish(topic, gsonMessage);
 759
 760         } catch (MqttException e) {
 761             logger.warn("Niko Home Control: sending command failed, trying to restart communication");
 762             restartCommunication();
 763             // retry sending after restart
 764             try {
 765                 if (communicationActive()) {
 766                     mqttConnection.connectionPublish(topic, gsonMessage);
 767                 } else {
 768                     logger.warn("Niko Home Control: failed to restart communication");
 769                     connectionLost();
 770                 }
 771             } catch (MqttException e1) {
 772                 logger.warn("Niko Home Control: error resending device command");
 773                 connectionLost();
 774             }
 775         }
 776     }
 777
 778     @Override
 779     public void processMessage(String topic, byte[] payload) {
 780         String message = new String(payload);
 781         if ((profile + "/system/evt").equals(topic)) {
 782             systemEvt(message);
 783         } else if ((profile + "/system/rsp").equals(topic)) {
 784             logger.debug("Niko Home Control: received topic {}, payload {}", topic, message);
 785             systeminfoPublishRsp(message);
 786         } else if ((profile + "/notification/evt").equals(topic)) {
 787             logger.debug("Niko Home Control: received topic {}, payload {}", topic, message);
 788             notificationEvt(message);
 789         } else if ((profile + "/control/devices/evt").equals(topic)) {
 790             logger.trace("Niko Home Control: received topic {}, payload {}", topic, message);
 791             devicesEvt(message);
 792         } else if ((profile + "/control/devices/rsp").equals(topic)) {
 793             logger.debug("Niko Home Control: received topic {}, payload {}", topic, message);
 794             devicesListRsp(message);
 795         } else if ((profile + "/authentication/rsp").equals(topic)) {
 796             logger.debug("Niko Home Control: received topic {}, payload {}", topic, message);
 797             servicesListRsp(message);
 798         } else if ((profile + "/control/devices.error").equals(topic)) {
 799             logger.warn("Niko Home Control: received error {}", message);
 800         } else {
 801             logger.trace("Niko Home Control: not acted on received message topic {}, payload {}", topic, message);
 802         }
 803     }
 804
 805     /**
 806      * @return system info retrieved from Connected Controller
 807      */
 808     public NhcSystemInfo2 getSystemInfo() {
 809         NhcSystemInfo2 systemInfo = nhcSystemInfo;
 810         if (systemInfo == null) {
 811             systemInfo = new NhcSystemInfo2();
 812         }
 813         return systemInfo;
 814     }
 815
 816     /**
 817      * @return time info retrieved from Connected Controller
 818      */
 819     public NhcTimeInfo2 getTimeInfo() {
 820         NhcTimeInfo2 timeInfo = nhcTimeInfo;
 821         if (timeInfo == null) {
 822             timeInfo = new NhcTimeInfo2();
 823         }
 824         return timeInfo;
 825     }
 826
 827     /**
 828      * @return comma separated list of services retrieved from Connected Controller
 829      */
 830     public String getServices() {
 831         return services.stream().map(NhcService2::name).collect(Collectors.joining(", "));
 832     }
 833
 834     @Override
 835     public void connectionStateChanged(MqttConnectionState state, @Nullable Throwable error) {
 836         if (error != null) {
 837             logger.debug("Connection state: {}", state, error);
 838             restartCommunication();
 839             if (!communicationActive()) {
 840                 logger.warn("Niko Home Control: failed to restart communication");
 841                 connectionLost();
 842             }
 843         } else {
 844             logger.trace("Connection state: {}", state);
 845         }
 846     }
 847 }