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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.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.NhcAction;
37 import org.openhab.binding.nikohomecontrol.internal.protocol.NhcControllerEvent;
38 import org.openhab.binding.nikohomecontrol.internal.protocol.NhcEnergyMeter;
39 import org.openhab.binding.nikohomecontrol.internal.protocol.NhcThermostat;
40 import org.openhab.binding.nikohomecontrol.internal.protocol.NikoHomeControlCommunication;
41 import org.openhab.binding.nikohomecontrol.internal.protocol.NikoHomeControlConstants.ActionType;
42 import org.openhab.binding.nikohomecontrol.internal.protocol.nhc2.NhcDevice2.NhcProperty;
43 import org.openhab.binding.nikohomecontrol.internal.protocol.nhc2.NhcMessage2.NhcMessageParam;
44 import org.openhab.core.io.transport.mqtt.MqttConnectionObserver;
45 import org.openhab.core.io.transport.mqtt.MqttConnectionState;
46 import org.openhab.core.io.transport.mqtt.MqttException;
47 import org.openhab.core.io.transport.mqtt.MqttMessageSubscriber;
48 import org.slf4j.Logger;
49 import org.slf4j.LoggerFactory;
50
51 import com.google.gson.FieldNamingPolicy;
52 import com.google.gson.Gson;
53 import com.google.gson.GsonBuilder;
54 import com.google.gson.JsonSyntaxException;
55 import com.google.gson.reflect.TypeToken;
56
57 /**
58  * The {@link NikoHomeControlCommunication2} class is able to do the following tasks with Niko Home Control II
59  * systems:
60  * <ul>
61  * <li>Start and stop MQTT connection with Niko Home Control II Connected Controller.
62  * <li>Read all setup and status information from the Niko Home Control Controller.
63  * <li>Execute Niko Home Control commands.
64  * <li>Listen for events from Niko Home Control.
65  * </ul>
66  *
67  * @author Mark Herwege - Initial Contribution
68  */
69 @NonNullByDefault
70 public class NikoHomeControlCommunication2 extends NikoHomeControlCommunication
71         implements MqttMessageSubscriber, MqttConnectionObserver {
72
73     private final Logger logger = LoggerFactory.getLogger(NikoHomeControlCommunication2.class);
74
75     private final NhcMqttConnection2 mqttConnection;
76
77     private final List<NhcService2> services = new CopyOnWriteArrayList<>();
78
79     private volatile String profile = "";
80
81     private volatile @Nullable NhcSystemInfo2 nhcSystemInfo;
82     private volatile @Nullable NhcTimeInfo2 nhcTimeInfo;
83
84     private volatile @Nullable CompletableFuture<Boolean> communicationStarted;
85
86     private ScheduledExecutorService scheduler;
87
88     private final Gson gson = new GsonBuilder().setFieldNamingPolicy(FieldNamingPolicy.UPPER_CAMEL_CASE).create();
89
90     /**
91      * Constructor for Niko Home Control communication object, manages communication with
92      * Niko Home Control II Connected Controller.
93      *
94      * @throws CertificateException when the SSL context for MQTT communication cannot be created
95      * @throws UnknownHostException when the IP address is not provided
96      *
97      */
98     public NikoHomeControlCommunication2(NhcControllerEvent handler, String clientId,
99             ScheduledExecutorService scheduler) throws CertificateException {
100         super(handler);
101         mqttConnection = new NhcMqttConnection2(clientId, this, this);
102         this.scheduler = scheduler;
103     }
104
105     @Override
106     public synchronized void startCommunication() {
107         communicationStarted = new CompletableFuture<>();
108
109         InetAddress addr = handler.getAddr();
110         if (addr == null) {
111             logger.warn("IP address cannot be empty");
112             stopCommunication();
113             return;
114         }
115         String addrString = addr.getHostAddress();
116         int port = handler.getPort();
117         logger.debug("initializing for mqtt connection to CoCo on {}:{}", addrString, port);
118
119         profile = handler.getProfile();
120
121         String token = handler.getToken();
122         if (token.isEmpty()) {
123             logger.warn("JWT token cannot be empty");
124             stopCommunication();
125             return;
126         }
127
128         try {
129             mqttConnection.startConnection(addrString, port, profile, token);
130             initialize();
131         } catch (MqttException e) {
132             logger.debug("error in mqtt communication");
133             stopCommunication();
134         }
135     }
136
137     @Override
138     public synchronized void stopCommunication() {
139         CompletableFuture<Boolean> started = communicationStarted;
140         if (started != null) {
141             started.complete(false);
142         }
143         communicationStarted = null;
144         mqttConnection.stopConnection();
145     }
146
147     @Override
148     public boolean communicationActive() {
149         CompletableFuture<Boolean> started = communicationStarted;
150         if (started == null) {
151             return false;
152         }
153         try {
154             // Wait until we received all devices info to confirm we are active.
155             return started.get(5000, TimeUnit.MILLISECONDS);
156         } catch (InterruptedException | ExecutionException | TimeoutException e) {
157             logger.debug("exception waiting for connection start");
158             return false;
159         }
160     }
161
162     /**
163      * After setting up the communication with the Niko Home Control Connected Controller, send all initialization
164      * messages.
165      *
166      */
167     private void initialize() throws MqttException {
168         NhcMessage2 message = new NhcMessage2();
169
170         message.method = "systeminfo.publish";
171         mqttConnection.connectionPublish(profile + "/system/cmd", gson.toJson(message));
172
173         message.method = "services.list";
174         mqttConnection.connectionPublish(profile + "/authentication/cmd", gson.toJson(message));
175
176         message.method = "devices.list";
177         mqttConnection.connectionPublish(profile + "/control/devices/cmd", gson.toJson(message));
178
179         message.method = "notifications.list";
180         mqttConnection.connectionPublish(profile + "/notification/cmd", gson.toJson(message));
181     }
182
183     private void connectionLost(String message) {
184         logger.debug("connection lost");
185         stopCommunication();
186         handler.controllerOffline(message);
187     }
188
189     private void systemEvt(String response) {
190         Type messageType = new TypeToken<NhcMessage2>() {
191         }.getType();
192         List<NhcTimeInfo2> timeInfo = null;
193         List<NhcSystemInfo2> systemInfo = null;
194         try {
195             NhcMessage2 message = gson.fromJson(response, messageType);
196             List<NhcMessageParam> messageParams = (message != null) ? message.params : null;
197             if (messageParams != null) {
198                 timeInfo = messageParams.stream().filter(p -> (p.timeInfo != null)).findFirst().get().timeInfo;
199                 systemInfo = messageParams.stream().filter(p -> (p.systemInfo != null)).findFirst().get().systemInfo;
200             }
201         } catch (JsonSyntaxException e) {
202             logger.debug("unexpected json {}", response);
203         } catch (NoSuchElementException ignore) {
204             // Ignore if timeInfo not present in response, this should not happen in a timeInfo response
205         }
206         if (timeInfo != null) {
207             nhcTimeInfo = timeInfo.get(0);
208         }
209         if (systemInfo != null) {
210             nhcSystemInfo = systemInfo.get(0);
211             handler.updatePropertiesEvent();
212         }
213     }
214
215     private void systeminfoPublishRsp(String response) {
216         Type messageType = new TypeToken<NhcMessage2>() {
217         }.getType();
218         List<NhcSystemInfo2> systemInfo = null;
219         try {
220             NhcMessage2 message = gson.fromJson(response, messageType);
221             List<NhcMessageParam> messageParams = (message != null) ? message.params : null;
222             if (messageParams != null) {
223                 systemInfo = messageParams.stream().filter(p -> (p.systemInfo != null)).findFirst().get().systemInfo;
224             }
225         } catch (JsonSyntaxException e) {
226             logger.debug("unexpected json {}", response);
227         } catch (NoSuchElementException ignore) {
228             // Ignore if systemInfo not present in response, this should not happen in a systemInfo response
229         }
230         if (systemInfo != null) {
231             nhcSystemInfo = systemInfo.get(0);
232         }
233     }
234
235     private void servicesListRsp(String response) {
236         Type messageType = new TypeToken<NhcMessage2>() {
237         }.getType();
238         List<NhcService2> serviceList = null;
239         try {
240             NhcMessage2 message = gson.fromJson(response, messageType);
241             List<NhcMessageParam> messageParams = (message != null) ? message.params : null;
242             if (messageParams != null) {
243                 serviceList = messageParams.stream().filter(p -> (p.services != null)).findFirst().get().services;
244             }
245         } catch (JsonSyntaxException e) {
246             logger.debug("unexpected json {}", response);
247         } catch (NoSuchElementException ignore) {
248             // Ignore if services not present in response, this should not happen in a services response
249         }
250         services.clear();
251         if (serviceList != null) {
252             services.addAll(serviceList);
253         }
254     }
255
256     private void devicesListRsp(String response) {
257         Type messageType = new TypeToken<NhcMessage2>() {
258         }.getType();
259         List<NhcDevice2> deviceList = null;
260         try {
261             NhcMessage2 message = gson.fromJson(response, messageType);
262             List<NhcMessageParam> messageParams = (message != null) ? message.params : null;
263             if (messageParams != null) {
264                 deviceList = messageParams.stream().filter(p -> (p.devices != null)).findFirst().get().devices;
265             }
266         } catch (JsonSyntaxException e) {
267             logger.debug("unexpected json {}", response);
268         } catch (NoSuchElementException ignore) {
269             // Ignore if devices not present in response, this should not happen in a devices response
270         }
271         if (deviceList == null) {
272             return;
273         }
274
275         for (NhcDevice2 device : deviceList) {
276             addDevice(device);
277             updateState(device);
278         }
279
280         // Once a devices list response is received, we know the communication is fully started.
281         logger.debug("Communication start complete.");
282         handler.controllerOnline();
283         CompletableFuture<Boolean> future = communicationStarted;
284         if (future != null) {
285             future.complete(true);
286         }
287     }
288
289     private void devicesEvt(String response) {
290         Type messageType = new TypeToken<NhcMessage2>() {
291         }.getType();
292         List<NhcDevice2> deviceList = null;
293         String method = null;
294         try {
295             NhcMessage2 message = gson.fromJson(response, messageType);
296             method = (message != null) ? message.method : null;
297             List<NhcMessageParam> messageParams = (message != null) ? message.params : null;
298             if (messageParams != null) {
299                 deviceList = messageParams.stream().filter(p -> (p.devices != null)).findFirst().get().devices;
300             }
301         } catch (JsonSyntaxException e) {
302             logger.debug("unexpected json {}", response);
303         } catch (NoSuchElementException ignore) {
304             // Ignore if devices not present in response, this should not happen in a devices event
305         }
306         if (deviceList == null) {
307             return;
308         }
309
310         if ("devices.removed".equals(method)) {
311             deviceList.forEach(this::removeDevice);
312             return;
313         } else if ("devices.added".equals(method)) {
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 != null) ? message.params : null;
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("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("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("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("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("device type {} not recognised, default to GENERIC action", device.type);
399                 }
400
401                 NhcAction2 nhcAction = new NhcAction2(device.uuid, device.name, device.model, device.technology,
402                         actionType, location, this);
403                 actions.put(device.uuid, nhcAction);
404             }
405         } else if ("thermostat".equals(device.type)) {
406             if (!thermostats.containsKey(device.uuid)) {
407                 logger.debug("adding thermostat device {}, {}", device.uuid, device.name);
408
409                 NhcThermostat2 nhcThermostat = new NhcThermostat2(device.uuid, device.name, device.model,
410                         device.technology, location, this);
411                 thermostats.put(device.uuid, nhcThermostat);
412             }
413         } else if ("centralmeter".equals(device.type)) {
414             if (!energyMeters.containsKey(device.uuid)) {
415                 logger.debug("adding centralmeter device {}, {}", device.uuid, device.name);
416                 NhcEnergyMeter2 nhcEnergyMeter = new NhcEnergyMeter2(device.uuid, device.name, device.model,
417                         device.technology, this, scheduler);
418                 energyMeters.put(device.uuid, nhcEnergyMeter);
419             }
420         } else {
421             logger.debug("device type {} not supported for {}, {}", device.type, device.uuid, device.name);
422         }
423     }
424
425     private void removeDevice(NhcDevice2 device) {
426         NhcAction action = actions.get(device.uuid);
427         NhcThermostat thermostat = thermostats.get(device.uuid);
428         NhcEnergyMeter energyMeter = energyMeters.get(device.uuid);
429         if (action != null) {
430             action.actionRemoved();
431             actions.remove(device.uuid);
432         } else if (thermostat != null) {
433             thermostat.thermostatRemoved();
434             thermostats.remove(device.uuid);
435         } else if (energyMeter != null) {
436             energyMeter.energyMeterRemoved();
437             energyMeters.remove(device.uuid);
438         }
439     }
440
441     private void updateState(NhcDevice2 device) {
442         List<NhcProperty> deviceProperties = device.properties;
443         if (deviceProperties == null) {
444             logger.debug("Cannot Update state for {} as no properties defined in device message", device.uuid);
445             return;
446         }
447
448         NhcAction action = actions.get(device.uuid);
449         NhcThermostat thermostat = thermostats.get(device.uuid);
450         NhcEnergyMeter energyMeter = energyMeters.get(device.uuid);
451
452         if (action != null) {
453             updateActionState((NhcAction2) action, deviceProperties);
454         } else if (thermostat != null) {
455             updateThermostatState((NhcThermostat2) thermostat, deviceProperties);
456         } else if (energyMeter != null) {
457             updateEnergyMeterState((NhcEnergyMeter2) energyMeter, deviceProperties);
458         }
459     }
460
461     private void updateActionState(NhcAction2 action, List<NhcProperty> deviceProperties) {
462         if (action.getType() == ActionType.ROLLERSHUTTER) {
463             updateRollershutterState(action, deviceProperties);
464         } else {
465             updateLightState(action, deviceProperties);
466         }
467     }
468
469     private void updateLightState(NhcAction2 action, List<NhcProperty> deviceProperties) {
470         Optional<NhcProperty> statusProperty = deviceProperties.stream().filter(p -> (p.status != null)).findFirst();
471         Optional<NhcProperty> dimmerProperty = deviceProperties.stream().filter(p -> (p.brightness != null))
472                 .findFirst();
473         Optional<NhcProperty> basicStateProperty = deviceProperties.stream().filter(p -> (p.basicState != null))
474                 .findFirst();
475
476         String booleanState = null;
477         if (statusProperty.isPresent()) {
478             booleanState = statusProperty.get().status;
479         } else if (basicStateProperty.isPresent()) {
480             booleanState = basicStateProperty.get().basicState;
481         }
482
483         if (booleanState != null) {
484             if (NHCON.equals(booleanState)) {
485                 action.setBooleanState(true);
486                 logger.debug("setting action {} internally to ON", action.getId());
487             } else if (NHCOFF.equals(booleanState)) {
488                 action.setBooleanState(false);
489                 logger.debug("setting action {} internally to OFF", action.getId());
490             }
491         }
492
493         if (dimmerProperty.isPresent()) {
494             String brightness = dimmerProperty.get().brightness;
495             if (brightness != null) {
496                 action.setState(Integer.parseInt(brightness));
497                 logger.debug("setting action {} internally to {}", action.getId(), dimmerProperty.get().brightness);
498             }
499         }
500     }
501
502     private void updateRollershutterState(NhcAction2 action, List<NhcProperty> deviceProperties) {
503         deviceProperties.stream().map(p -> p.position).filter(Objects::nonNull).findFirst().ifPresent(position -> {
504             try {
505                 action.setState(Integer.parseInt(position));
506                 logger.debug("setting action {} internally to {}", action.getId(), position);
507             } catch (NumberFormatException e) {
508                 logger.trace("received empty rollershutter {} position info", action.getId());
509             }
510         });
511     }
512
513     private void updateThermostatState(NhcThermostat2 thermostat, List<NhcProperty> deviceProperties) {
514         Optional<Boolean> overruleActiveProperty = deviceProperties.stream().map(p -> p.overruleActive)
515                 .filter(Objects::nonNull).map(t -> Boolean.parseBoolean(t)).findFirst();
516         Optional<Integer> overruleSetpointProperty = deviceProperties.stream().map(p -> p.overruleSetpoint)
517                 .map(s -> (!((s == null) || s.isEmpty())) ? Math.round(Float.parseFloat(s) * 10) : null)
518                 .filter(Objects::nonNull).findFirst();
519         Optional<Integer> overruleTimeProperty = deviceProperties.stream().map(p -> p.overruleTime)
520                 .map(s -> (!((s == null) || s.isEmpty())) ? Math.round(Float.parseFloat(s)) : null)
521                 .filter(Objects::nonNull).findFirst();
522         Optional<Integer> setpointTemperatureProperty = deviceProperties.stream().map(p -> p.setpointTemperature)
523                 .map(s -> (!((s == null) || s.isEmpty())) ? Math.round(Float.parseFloat(s) * 10) : null)
524                 .filter(Objects::nonNull).findFirst();
525         Optional<Boolean> ecoSaveProperty = deviceProperties.stream().map(p -> p.ecoSave)
526                 .map(s -> s != null ? Boolean.parseBoolean(s) : null).filter(Objects::nonNull).findFirst();
527         Optional<Integer> ambientTemperatureProperty = deviceProperties.stream().map(p -> p.ambientTemperature)
528                 .map(s -> (!((s == null) || s.isEmpty())) ? Math.round(Float.parseFloat(s) * 10) : null)
529                 .filter(Objects::nonNull).findFirst();
530         Optional<@Nullable String> demandProperty = deviceProperties.stream().map(p -> p.demand)
531                 .filter(Objects::nonNull).findFirst();
532         Optional<@Nullable String> operationModeProperty = deviceProperties.stream().map(p -> p.operationMode)
533                 .filter(Objects::nonNull).findFirst();
534
535         String modeString = deviceProperties.stream().map(p -> p.program).filter(Objects::nonNull).findFirst()
536                 .orElse("");
537         int mode = IntStream.range(0, THERMOSTATMODES.length).filter(i -> THERMOSTATMODES[i].equals(modeString))
538                 .findFirst().orElse(thermostat.getMode());
539
540         int measured = ambientTemperatureProperty.orElse(thermostat.getMeasured());
541         int setpoint = setpointTemperatureProperty.orElse(thermostat.getSetpoint());
542
543         int overrule = thermostat.getOverrule();
544         int overruletime = thermostat.getRemainingOverruletime();
545         if (overruleActiveProperty.orElse(false)) {
546             overrule = overruleSetpointProperty.orElse(0);
547             overruletime = overruleTimeProperty.orElse(0);
548         }
549
550         int ecosave = thermostat.getEcosave();
551         if (ecoSaveProperty.orElse(false)) {
552             ecosave = 1;
553         }
554
555         int demand = thermostat.getDemand();
556         String demandString = demandProperty.orElse(operationModeProperty.orElse(""));
557         demandString = demandString == null ? "" : demandString;
558         switch (demandString) {
559             case "None":
560                 demand = 0;
561                 break;
562             case "Heating":
563                 demand = 1;
564                 break;
565             case "Cooling":
566                 demand = -1;
567                 break;
568         }
569
570         logger.debug(
571                 "Niko Home Control: setting thermostat {} with measured {}, setpoint {}, mode {}, overrule {}, overruletime {}, ecosave {}, demand {}",
572                 thermostat.getId(), measured, setpoint, mode, overrule, overruletime, ecosave, demand);
573         thermostat.updateState(measured, setpoint, mode, overrule, overruletime, ecosave, demand);
574     }
575
576     private void updateEnergyMeterState(NhcEnergyMeter2 energyMeter, List<NhcProperty> deviceProperties) {
577         deviceProperties.stream().map(p -> p.electricalPower).filter(Objects::nonNull).findFirst()
578                 .ifPresent(electricalPower -> {
579                     try {
580                         energyMeter.setPower(Integer.parseInt(electricalPower));
581                         logger.trace("setting energy meter {} power to {}", energyMeter.getId(), electricalPower);
582                     } catch (NumberFormatException e) {
583                         energyMeter.setPower(null);
584                         logger.trace("received empty energy meter {} power reading", energyMeter.getId());
585                     }
586                 });
587     }
588
589     @Override
590     public void executeAction(String actionId, String value) {
591         NhcMessage2 message = new NhcMessage2();
592
593         message.method = "devices.control";
594         ArrayList<NhcMessageParam> params = new ArrayList<>();
595         NhcMessageParam param = new NhcMessageParam();
596         params.add(param);
597         message.params = params;
598         ArrayList<NhcDevice2> devices = new ArrayList<>();
599         NhcDevice2 device = new NhcDevice2();
600         devices.add(device);
601         param.devices = devices;
602         device.uuid = actionId;
603         ArrayList<NhcProperty> deviceProperties = new ArrayList<>();
604         NhcProperty property = new NhcProperty();
605         deviceProperties.add(property);
606         device.properties = deviceProperties;
607
608         NhcAction2 action = (NhcAction2) actions.get(actionId);
609         if (action == null) {
610             return;
611         }
612
613         switch (action.getType()) {
614             case GENERIC:
615             case TRIGGER:
616                 property.basicState = NHCTRIGGERED;
617                 break;
618             case RELAY:
619                 property.status = value;
620                 break;
621             case DIMMER:
622                 if (NHCON.equals(value)) {
623                     action.setBooleanState(true); // this will trigger sending the stored brightness value event out
624                     property.status = value;
625                 } else if (NHCOFF.equals(value)) {
626                     property.status = value;
627                 } else {
628                     // If the light is off, turn the light on before sending the brightness value, needs to happen
629                     // in 2 separate messages.
630                     if (!action.booleanState()) {
631                         executeAction(actionId, NHCON);
632                     }
633                     property.brightness = value;
634                 }
635                 break;
636             case ROLLERSHUTTER:
637                 if (NHCSTOP.equals(value)) {
638                     property.action = value;
639                 } else if (NHCUP.equals(value)) {
640                     property.position = "100";
641                 } else if (NHCDOWN.equals(value)) {
642                     property.position = "0";
643                 } else {
644                     int position = Integer.parseInt(value);
645                     property.position = String.valueOf(position);
646                 }
647                 break;
648         }
649
650         String topic = profile + "/control/devices/cmd";
651         String gsonMessage = gson.toJson(message);
652         sendDeviceMessage(topic, gsonMessage);
653     }
654
655     @Override
656     public void executeThermostat(String thermostatId, String mode) {
657         NhcMessage2 message = new NhcMessage2();
658
659         message.method = "devices.control";
660         ArrayList<NhcMessageParam> params = new ArrayList<>();
661         NhcMessageParam param = new NhcMessageParam();
662         params.add(param);
663         message.params = params;
664         ArrayList<NhcDevice2> devices = new ArrayList<>();
665         NhcDevice2 device = new NhcDevice2();
666         devices.add(device);
667         param.devices = devices;
668         device.uuid = thermostatId;
669         ArrayList<NhcProperty> deviceProperties = new ArrayList<>();
670
671         NhcProperty overruleActiveProp = new NhcProperty();
672         deviceProperties.add(overruleActiveProp);
673         overruleActiveProp.overruleActive = "False";
674
675         NhcProperty program = new NhcProperty();
676         deviceProperties.add(program);
677         program.program = mode;
678
679         device.properties = deviceProperties;
680
681         String topic = profile + "/control/devices/cmd";
682         String gsonMessage = gson.toJson(message);
683         sendDeviceMessage(topic, gsonMessage);
684     }
685
686     @Override
687     public void executeThermostat(String thermostatId, int overruleTemp, int overruleTime) {
688         NhcMessage2 message = new NhcMessage2();
689
690         message.method = "devices.control";
691         ArrayList<NhcMessageParam> params = new ArrayList<>();
692         NhcMessageParam param = new NhcMessageParam();
693         params.add(param);
694         message.params = params;
695         ArrayList<NhcDevice2> devices = new ArrayList<>();
696         NhcDevice2 device = new NhcDevice2();
697         devices.add(device);
698         param.devices = devices;
699         device.uuid = thermostatId;
700         ArrayList<NhcProperty> deviceProperties = new ArrayList<>();
701
702         if (overruleTime > 0) {
703             NhcProperty overruleActiveProp = new NhcProperty();
704             overruleActiveProp.overruleActive = "True";
705             deviceProperties.add(overruleActiveProp);
706
707             NhcProperty overruleSetpointProp = new NhcProperty();
708             overruleSetpointProp.overruleSetpoint = String.valueOf(overruleTemp / 10.0);
709             deviceProperties.add(overruleSetpointProp);
710
711             NhcProperty overruleTimeProp = new NhcProperty();
712             overruleTimeProp.overruleTime = String.valueOf(overruleTime);
713             deviceProperties.add(overruleTimeProp);
714         } else {
715             NhcProperty overruleActiveProp = new NhcProperty();
716             overruleActiveProp.overruleActive = "False";
717             deviceProperties.add(overruleActiveProp);
718         }
719         device.properties = deviceProperties;
720
721         String topic = profile + "/control/devices/cmd";
722         String gsonMessage = gson.toJson(message);
723         sendDeviceMessage(topic, gsonMessage);
724     }
725
726     @Override
727     public void startEnergyMeter(String energyMeterId) {
728         NhcMessage2 message = new NhcMessage2();
729
730         message.method = "devices.control";
731         ArrayList<NhcMessageParam> params = new ArrayList<>();
732         NhcMessageParam param = new NhcMessageParam();
733         params.add(param);
734         message.params = params;
735         ArrayList<NhcDevice2> devices = new ArrayList<>();
736         NhcDevice2 device = new NhcDevice2();
737         devices.add(device);
738         param.devices = devices;
739         device.uuid = energyMeterId;
740         ArrayList<NhcProperty> deviceProperties = new ArrayList<>();
741
742         NhcProperty reportInstantUsageProp = new NhcProperty();
743         deviceProperties.add(reportInstantUsageProp);
744         reportInstantUsageProp.reportInstantUsage = "True";
745         device.properties = deviceProperties;
746
747         String topic = profile + "/control/devices/cmd";
748         String gsonMessage = gson.toJson(message);
749
750         NhcEnergyMeter2 energyMeter = (NhcEnergyMeter2) energyMeters.get(energyMeterId);
751         if (energyMeter != null) {
752             energyMeter.startEnergyMeter(topic, gsonMessage);
753         }
754     }
755
756     @Override
757     public void stopEnergyMeter(String energyMeterId) {
758         NhcEnergyMeter2 energyMeter = (NhcEnergyMeter2) energyMeters.get(energyMeterId);
759         if (energyMeter != null) {
760             energyMeter.stopEnergyMeter();
761         }
762     }
763
764     /**
765      * Method called from the {@link NhcEnergyMeter2} object to send message to Niko Home Control.
766      *
767      * @param topic
768      * @param gsonMessage
769      */
770     public void executeEnergyMeter(String topic, String gsonMessage) {
771         sendDeviceMessage(topic, gsonMessage);
772     }
773
774     private void sendDeviceMessage(String topic, String gsonMessage) {
775         try {
776             mqttConnection.connectionPublish(topic, gsonMessage);
777
778         } catch (MqttException e) {
779             String message = e.getMessage();
780             message = (message != null) ? message : "Communication error";
781
782             logger.debug("sending command failed, trying to restart communication");
783             restartCommunication();
784             // retry sending after restart
785             try {
786                 if (communicationActive()) {
787                     mqttConnection.connectionPublish(topic, gsonMessage);
788                 } else {
789                     logger.debug("failed to restart communication");
790                 }
791             } catch (MqttException e1) {
792                 message = e1.getMessage();
793                 message = (message != null) ? message : "Communication error";
794
795                 logger.debug("error resending device command");
796             }
797             if (!communicationActive()) {
798                 connectionLost(message);
799             }
800         }
801     }
802
803     @Override
804     public void processMessage(String topic, byte[] payload) {
805         String message = new String(payload);
806         if ((profile + "/system/evt").equals(topic)) {
807             systemEvt(message);
808         } else if ((profile + "/system/rsp").equals(topic)) {
809             logger.debug("received topic {}, payload {}", topic, message);
810             systeminfoPublishRsp(message);
811         } else if ((profile + "/notification/evt").equals(topic)) {
812             logger.debug("received topic {}, payload {}", topic, message);
813             notificationEvt(message);
814         } else if ((profile + "/control/devices/evt").equals(topic)) {
815             logger.trace("received topic {}, payload {}", topic, message);
816             devicesEvt(message);
817         } else if ((profile + "/control/devices/rsp").equals(topic)) {
818             logger.debug("received topic {}, payload {}", topic, message);
819             devicesListRsp(message);
820         } else if ((profile + "/authentication/rsp").equals(topic)) {
821             logger.debug("received topic {}, payload {}", topic, message);
822             servicesListRsp(message);
823         } else if ((profile + "/control/devices.error").equals(topic)) {
824             logger.warn("received error {}", message);
825         } else {
826             logger.trace("not acted on received message topic {}, payload {}", topic, message);
827         }
828     }
829
830     /**
831      * @return system info retrieved from Connected Controller
832      */
833     public NhcSystemInfo2 getSystemInfo() {
834         NhcSystemInfo2 systemInfo = nhcSystemInfo;
835         if (systemInfo == null) {
836             systemInfo = new NhcSystemInfo2();
837         }
838         return systemInfo;
839     }
840
841     /**
842      * @return time info retrieved from Connected Controller
843      */
844     public NhcTimeInfo2 getTimeInfo() {
845         NhcTimeInfo2 timeInfo = nhcTimeInfo;
846         if (timeInfo == null) {
847             timeInfo = new NhcTimeInfo2();
848         }
849         return timeInfo;
850     }
851
852     /**
853      * @return comma separated list of services retrieved from Connected Controller
854      */
855     public String getServices() {
856         return services.stream().map(NhcService2::name).collect(Collectors.joining(", "));
857     }
858
859     @Override
860     public void connectionStateChanged(MqttConnectionState state, @Nullable Throwable error) {
861         if (error != null) {
862             logger.debug("Connection state: {}", state, error);
863             String message = error.getMessage();
864             message = (message != null) ? message : "Error communicating with the controller";
865             if (!MqttConnectionState.CONNECTING.equals(state)) {
866                 // This is a connection loss, try to restart
867                 restartCommunication();
868             }
869             if (!communicationActive()) {
870                 connectionLost(message);
871             }
872         } else {
873             logger.trace("Connection state: {}", state);
874         }
875     }
876 }