2 * Copyright (c) 2010-2022 Contributors to the openHAB project
4 * See the NOTICE file(s) distributed with this work for additional
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
11 * SPDX-License-Identifier: EPL-2.0
13 package org.openhab.binding.neohub.internal;
15 import static org.openhab.binding.neohub.internal.NeoHubBindingConstants.*;
17 import java.io.IOException;
18 import java.time.Instant;
19 import java.time.temporal.ChronoUnit;
20 import java.util.HashMap;
21 import java.util.List;
23 import java.util.concurrent.ScheduledFuture;
24 import java.util.concurrent.TimeUnit;
25 import java.util.concurrent.atomic.AtomicInteger;
27 import javax.measure.Unit;
29 import org.eclipse.jdt.annotation.NonNullByDefault;
30 import org.eclipse.jdt.annotation.Nullable;
31 import org.openhab.binding.neohub.internal.NeoHubAbstractDeviceData.AbstractRecord;
32 import org.openhab.binding.neohub.internal.NeoHubBindingConstants.NeoHubReturnResult;
33 import org.openhab.core.library.types.QuantityType;
34 import org.openhab.core.library.unit.SIUnits;
35 import org.openhab.core.library.unit.Units;
36 import org.openhab.core.thing.Bridge;
37 import org.openhab.core.thing.ChannelUID;
38 import org.openhab.core.thing.Thing;
39 import org.openhab.core.thing.ThingStatus;
40 import org.openhab.core.thing.ThingStatusDetail;
41 import org.openhab.core.thing.binding.BaseBridgeHandler;
42 import org.openhab.core.thing.binding.ThingHandler;
43 import org.openhab.core.types.Command;
44 import org.openhab.core.types.State;
45 import org.openhab.core.types.UnDefType;
46 import org.slf4j.Logger;
47 import org.slf4j.LoggerFactory;
49 import com.google.gson.JsonSyntaxException;
52 * The {@link NeoHubHandler} is the openHAB Handler for NeoHub devices
54 * @author Andrew Fiddian-Green - Initial contribution (v2.x binding code)
55 * @author Sebastian Prehn - Initial contribution (v1.x hub communication)
59 public class NeoHubHandler extends BaseBridgeHandler {
61 private static final String SEE_README = "See documentation chapter \"Connection Refused Errors\"";
63 private final Logger logger = LoggerFactory.getLogger(NeoHubHandler.class);
65 private final Map<String, Boolean> connectionStates = new HashMap<>();
67 private @Nullable NeoHubConfiguration config;
68 private @Nullable NeoHubSocketBase socket;
69 private @Nullable ScheduledFuture<?> lazyPollingScheduler;
70 private @Nullable ScheduledFuture<?> fastPollingScheduler;
72 private final AtomicInteger fastPollingCallsToGo = new AtomicInteger();
74 private @Nullable NeoHubReadDcbResponse systemData = null;
76 private enum ApiVersion {
80 public final String label;
82 private ApiVersion(String label) {
87 private ApiVersion apiVersion = ApiVersion.LEGACY;
88 private boolean isApiOnline = false;
90 public NeoHubHandler(Bridge bridge) {
95 public void handleCommand(ChannelUID channelUID, Command command) {
96 // future: currently there is nothing to do for a NeoHub
100 public void initialize() {
101 NeoHubConfiguration config = getConfigAs(NeoHubConfiguration.class);
103 if (logger.isDebugEnabled()) {
104 logger.debug("hub '{}' hostname={}", getThing().getUID(), config.hostName);
107 if (!MATCHER_IP_ADDRESS.matcher(config.hostName).matches()) {
108 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "parameter hostName must be set!");
112 if (logger.isDebugEnabled()) {
113 logger.debug("hub '{}' port={}", getThing().getUID(), config.portNumber);
116 if (config.portNumber < 0 || config.portNumber > 0xFFFF) {
117 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "portNumber is invalid!");
121 if (logger.isDebugEnabled()) {
122 logger.debug("hub '{}' polling interval={}", getThing().getUID(), config.pollingInterval);
125 if (config.pollingInterval < FAST_POLL_INTERVAL || config.pollingInterval > LAZY_POLL_INTERVAL) {
126 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, String
127 .format("pollingInterval must be in range [%d..%d]!", FAST_POLL_INTERVAL, LAZY_POLL_INTERVAL));
131 if (logger.isDebugEnabled()) {
132 logger.debug("hub '{}' socketTimeout={}", getThing().getUID(), config.socketTimeout);
135 if (config.socketTimeout < 5 || config.socketTimeout > 20) {
136 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
137 String.format("socketTimeout must be in range [%d..%d]!", 5, 20));
141 if (logger.isDebugEnabled()) {
142 logger.debug("hub '{}' preferLegacyApi={}", getThing().getUID(), config.preferLegacyApi);
145 // create a web or TCP socket based on the port number in the configuration
146 NeoHubSocketBase socket;
148 if (config.useWebSocket) {
149 socket = new NeoHubWebSocket(config);
151 socket = new NeoHubSocket(config);
153 } catch (NeoHubException e) {
154 logger.debug("\"hub '{}' error creating web/tcp socket: '{}'", getThing().getUID(), e.getMessage());
158 this.socket = socket;
159 this.config = config;
162 * Try to 'ping' the hub, and if there is a 'connection refused', it is probably due to the mobile App |
163 * Settings | Legacy API Enable switch not being On, so go offline and log a warning message.
166 socket.sendMessage(CMD_CODE_FIRMWARE);
167 } catch (IOException e) {
168 String error = e.getMessage();
169 if (error != null && error.toLowerCase().startsWith("connection refused")) {
170 logger.warn("CONNECTION REFUSED!! (hub '{}') => {}", getThing().getUID(), SEE_README);
171 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, SEE_README);
174 } catch (NeoHubException e) {
175 // NeoHubException won't actually occur here
178 if (logger.isDebugEnabled()) {
179 logger.debug("hub '{}' start background polling..", getThing().getUID());
182 // create a "lazy" polling scheduler
183 ScheduledFuture<?> lazy = this.lazyPollingScheduler;
184 if (lazy == null || lazy.isCancelled()) {
185 this.lazyPollingScheduler = scheduler.scheduleWithFixedDelay(this::lazyPollingSchedulerExecute,
186 config.pollingInterval, config.pollingInterval, TimeUnit.SECONDS);
189 // create a "fast" polling scheduler
190 fastPollingCallsToGo.set(FAST_POLL_CYCLES);
191 ScheduledFuture<?> fast = this.fastPollingScheduler;
192 if (fast == null || fast.isCancelled()) {
193 this.fastPollingScheduler = scheduler.scheduleWithFixedDelay(this::fastPollingSchedulerExecute,
194 FAST_POLL_INTERVAL, FAST_POLL_INTERVAL, TimeUnit.SECONDS);
197 updateStatus(ThingStatus.UNKNOWN);
199 // start a fast polling burst to ensure the NeHub is initialized quickly
200 startFastPollingBurst();
204 public void dispose() {
205 if (logger.isDebugEnabled()) {
206 logger.debug("hub '{}' stop background polling..", getThing().getUID());
209 // clean up the lazy polling scheduler
210 ScheduledFuture<?> lazy = this.lazyPollingScheduler;
211 if (lazy != null && !lazy.isCancelled()) {
213 this.lazyPollingScheduler = null;
216 // clean up the fast polling scheduler
217 ScheduledFuture<?> fast = this.fastPollingScheduler;
218 if (fast != null && !fast.isCancelled()) {
220 this.fastPollingScheduler = null;
223 NeoHubSocketBase socket = this.socket;
224 if (socket != null) {
227 } catch (IOException e) {
234 * device handlers call this to initiate a burst of fast polling requests (
235 * improves response time to users when openHAB changes a channel value )
237 public void startFastPollingBurst() {
238 fastPollingCallsToGo.set(FAST_POLL_CYCLES);
242 * device handlers call this method to issue commands to the NeoHub
244 public synchronized NeoHubReturnResult toNeoHubSendChannelValue(String commandStr) {
245 NeoHubSocketBase socket = this.socket;
247 if (socket == null || config == null) {
248 return NeoHubReturnResult.ERR_INITIALIZATION;
252 socket.sendMessage(commandStr);
254 // start a fast polling burst (to confirm the status change)
255 startFastPollingBurst();
257 return NeoHubReturnResult.SUCCEEDED;
258 } catch (Exception e) {
259 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR);
260 logger.warn(MSG_FMT_SET_VALUE_ERR, getThing().getUID(), commandStr, e.getMessage());
261 return NeoHubReturnResult.ERR_COMMUNICATION;
266 * sends a JSON request to the NeoHub to read the device data
268 * @return a class that contains the full status of all devices
270 protected @Nullable NeoHubAbstractDeviceData fromNeoHubGetDeviceData() {
271 NeoHubSocketBase socket = this.socket;
273 if (socket == null || config == null) {
274 logger.warn(MSG_HUB_CONFIG, getThing().getUID());
280 NeoHubAbstractDeviceData deviceData;
282 if (apiVersion == ApiVersion.LEGACY) {
283 responseJson = socket.sendMessage(CMD_CODE_INFO);
284 deviceData = NeoHubInfoResponse.createDeviceData(responseJson);
286 responseJson = socket.sendMessage(CMD_CODE_GET_LIVE_DATA);
287 deviceData = NeoHubLiveDeviceData.createDeviceData(responseJson);
290 if (deviceData == null) {
291 logger.warn(MSG_FMT_DEVICE_POLL_ERR, getThing().getUID(), "failed to create device data response");
292 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR);
297 List<? extends AbstractRecord> devices = deviceData.getDevices();
298 if (devices == null || devices.isEmpty()) {
299 logger.warn(MSG_FMT_DEVICE_POLL_ERR, getThing().getUID(), "no devices found");
300 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR);
304 if (getThing().getStatus() != ThingStatus.ONLINE) {
305 updateStatus(ThingStatus.ONLINE, ThingStatusDetail.NONE);
308 // check if we also need to discard and update systemData
309 NeoHubReadDcbResponse systemData = this.systemData;
310 if (systemData != null) {
311 if (deviceData instanceof NeoHubLiveDeviceData) {
313 * note: time-stamps are measured in seconds from 1970-01-01T00:00:00Z
315 * new API: discard systemData if its time-stamp is older than the system
316 * time-stamp on the hub
318 if (systemData.timeStamp < ((NeoHubLiveDeviceData) deviceData).getTimestampSystem()) {
319 this.systemData = null;
323 * note: time-stamps are measured in seconds from 1970-01-01T00:00:00Z
325 * legacy API: discard systemData if its time-stamp is older than one hour
327 if (systemData.timeStamp < Instant.now().minus(1, ChronoUnit.HOURS).getEpochSecond()) {
328 this.systemData = null;
334 } catch (Exception e) {
335 logger.warn(MSG_FMT_DEVICE_POLL_ERR, getThing().getUID(), e.getMessage());
336 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR);
342 * sends a JSON request to the NeoHub to read the system data
344 * @return a class that contains the status of the system
346 protected @Nullable NeoHubReadDcbResponse fromNeoHubReadSystemData() {
347 NeoHubSocketBase socket = this.socket;
349 if (socket == null) {
355 NeoHubReadDcbResponse systemData;
357 if (apiVersion == ApiVersion.LEGACY) {
358 responseJson = socket.sendMessage(CMD_CODE_READ_DCB);
359 systemData = NeoHubReadDcbResponse.createSystemData(responseJson);
361 responseJson = socket.sendMessage(CMD_CODE_GET_SYSTEM);
362 systemData = NeoHubReadDcbResponse.createSystemData(responseJson);
365 if (systemData == null) {
366 logger.warn(MSG_FMT_SYSTEM_POLL_ERR, getThing().getUID(), "failed to create system data response");
370 String physicalFirmware = systemData.getFirmwareVersion();
371 if (physicalFirmware != null) {
372 String thingFirmware = getThing().getProperties().get(PROPERTY_FIRMWARE_VERSION);
373 if (!physicalFirmware.equals(thingFirmware)) {
374 getThing().setProperty(PROPERTY_FIRMWARE_VERSION, physicalFirmware);
379 } catch (Exception e) {
380 logger.warn(MSG_FMT_SYSTEM_POLL_ERR, getThing().getUID(), e.getMessage());
386 * this is the callback used by the lazy polling scheduler.. fetches the info
387 * for all devices from the NeoHub, and passes the results the respective device
390 private synchronized void lazyPollingSchedulerExecute() {
391 // check which API is supported
396 NeoHubAbstractDeviceData deviceData = fromNeoHubGetDeviceData();
397 if (deviceData != null) {
398 // dispatch deviceData to each of the hub's owned devices ..
399 List<Thing> children = getThing().getThings();
400 for (Thing child : children) {
401 ThingHandler device = child.getHandler();
402 if (device instanceof NeoBaseHandler) {
403 ((NeoBaseHandler) device).toBaseSendPollResponse(deviceData);
407 // evaluate and update the state of our RF mesh QoS channel
408 List<? extends AbstractRecord> devices = deviceData.getDevices();
412 if (devices == null || devices.isEmpty()) {
413 state = UnDefType.UNDEF;
416 int totalDeviceCount = devices.size();
417 int onlineDeviceCount = 0;
419 for (AbstractRecord device : devices) {
420 String deviceName = device.getDeviceName();
421 Boolean online = !device.offline();
424 Boolean onlineBefore = connectionStates.put(deviceName, online);
426 * note: we use logger.info() here to log changes; reason is that the average user does really need
427 * to know if a device (very occasionally) drops out of the normally reliable RF mesh; however we
428 * only log it if 1) the state has changed, and 2) either 2a) the device has already been discovered
429 * by the bridge handler, or 2b) logger debug mode is set
431 if (!online.equals(onlineBefore) && ((onlineBefore != null) || logger.isDebugEnabled())) {
432 logger.info("hub '{}' device \"{}\" has {} the RF mesh network", getThing().getUID(),
433 deviceName, online.booleanValue() ? "joined" : "left");
436 if (online.booleanValue()) {
440 property = String.format("[%d/%d]", onlineDeviceCount, totalDeviceCount);
441 state = new QuantityType<>((100.0 * onlineDeviceCount) / totalDeviceCount, Units.PERCENT);
443 getThing().setProperty(PROPERTY_API_DEVICEINFO, property);
444 updateState(CHAN_MESH_NETWORK_QOS, state);
446 if (fastPollingCallsToGo.get() > 0) {
447 fastPollingCallsToGo.decrementAndGet();
452 * this is the callback used by the fast polling scheduler.. checks if a fast
453 * polling burst is scheduled, and if so calls lazyPollingSchedulerExecute
455 private void fastPollingSchedulerExecute() {
456 if (fastPollingCallsToGo.get() > 0) {
457 lazyPollingSchedulerExecute();
462 * select whether to use the old "deprecated" API or the new API
464 private void selectApi() {
465 boolean supportsLegacyApi = false;
466 boolean supportsFutureApi = false;
468 NeoHubSocketBase socket = this.socket;
469 if (socket != null) {
471 NeoHubReadDcbResponse systemData;
474 responseJson = socket.sendMessage(CMD_CODE_READ_DCB);
475 systemData = NeoHubReadDcbResponse.createSystemData(responseJson);
476 supportsLegacyApi = systemData != null;
477 if (!supportsLegacyApi) {
478 throw new NeoHubException("legacy API not supported");
480 } catch (JsonSyntaxException | NeoHubException | IOException e) {
481 // we learned that this API is not currently supported; no big deal
482 logger.debug("hub '{}' legacy API is not supported!", getThing().getUID());
485 responseJson = socket.sendMessage(CMD_CODE_GET_SYSTEM);
486 systemData = NeoHubReadDcbResponse.createSystemData(responseJson);
487 supportsFutureApi = systemData != null;
488 if (!supportsFutureApi) {
489 throw new NeoHubException(String.format("hub '%s' new API not supported", getThing().getUID()));
491 } catch (JsonSyntaxException | NeoHubException | IOException e) {
492 // we learned that this API is not currently supported; no big deal
493 logger.debug("hub '{}' new API is not supported!", getThing().getUID());
497 if (!supportsLegacyApi && !supportsFutureApi) {
498 logger.warn("hub '{}' currently neither legacy nor new API are supported!", getThing().getUID());
503 NeoHubConfiguration config = this.config;
504 ApiVersion apiVersion = (supportsLegacyApi && config != null && config.preferLegacyApi) ? ApiVersion.LEGACY
506 if (apiVersion != this.apiVersion) {
507 logger.debug("hub '{}' changing API version: '{}' => '{}'", getThing().getUID(), this.apiVersion.label,
509 this.apiVersion = apiVersion;
512 if (!apiVersion.label.equals(getThing().getProperties().get(PROPERTY_API_VERSION))) {
513 getThing().setProperty(PROPERTY_API_VERSION, apiVersion.label);
516 this.isApiOnline = true;
520 * get the Engineers data
522 public @Nullable NeoHubGetEngineersData fromNeoHubGetEngineersData() {
523 NeoHubSocketBase socket = this.socket;
524 if (socket != null) {
527 responseJson = socket.sendMessage(CMD_CODE_GET_ENGINEERS);
528 return NeoHubGetEngineersData.createEngineersData(responseJson);
529 } catch (JsonSyntaxException | IOException | NeoHubException e) {
530 logger.warn(MSG_FMT_ENGINEERS_POLL_ERR, getThing().getUID(), e.getMessage());
536 public boolean isLegacyApiSelected() {
537 return apiVersion == ApiVersion.LEGACY;
540 public Unit<?> getTemperatureUnit() {
541 NeoHubReadDcbResponse systemData = this.systemData;
542 if (systemData == null) {
543 this.systemData = systemData = fromNeoHubReadSystemData();
545 if (systemData != null) {
546 return systemData.getTemperatureUnit();
548 return SIUnits.CELSIUS;