2 * Copyright (c) 2010-2021 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.autelis.internal.handler;
15 import java.io.StringReader;
16 import java.util.Collections;
17 import java.util.HashMap;
19 import java.util.concurrent.ScheduledFuture;
20 import java.util.concurrent.TimeUnit;
21 import java.util.regex.Matcher;
22 import java.util.regex.Pattern;
24 import javax.xml.xpath.XPath;
25 import javax.xml.xpath.XPathExpressionException;
26 import javax.xml.xpath.XPathFactory;
28 import org.eclipse.jetty.client.HttpClient;
29 import org.eclipse.jetty.client.api.ContentResponse;
30 import org.eclipse.jetty.client.api.Request;
31 import org.eclipse.jetty.http.HttpHeader;
32 import org.eclipse.jetty.http.HttpStatus;
33 import org.eclipse.jetty.util.B64Code;
34 import org.eclipse.jetty.util.StringUtil;
35 import org.openhab.binding.autelis.internal.AutelisBindingConstants;
36 import org.openhab.binding.autelis.internal.config.AutelisConfiguration;
37 import org.openhab.core.library.types.DecimalType;
38 import org.openhab.core.library.types.IncreaseDecreaseType;
39 import org.openhab.core.library.types.OnOffType;
40 import org.openhab.core.library.types.StringType;
41 import org.openhab.core.thing.Channel;
42 import org.openhab.core.thing.ChannelUID;
43 import org.openhab.core.thing.Thing;
44 import org.openhab.core.thing.ThingStatus;
45 import org.openhab.core.thing.ThingStatusDetail;
46 import org.openhab.core.thing.binding.BaseThingHandler;
47 import org.openhab.core.types.Command;
48 import org.openhab.core.types.State;
49 import org.slf4j.Logger;
50 import org.slf4j.LoggerFactory;
51 import org.xml.sax.InputSource;
55 * Autelis Pool Control Binding
57 * Autelis controllers allow remote access to many common pool systems. This
58 * binding allows openHAB to both monitor and control a pool system through
61 * @see <a href="http://Autelis.com">http://autelis.com</a>
62 * @see <a href="http://www.autelis.com/wiki/index.php?title=Pool_Control_HTTP_Command_Reference"</a> for Jandy API
63 * @see <a href="http://www.autelis.com/wiki/index.php?title=Pool_Control_(PI)_HTTP_Command_Reference"</a> for Pentair
66 * The {@link AutelisHandler} is responsible for handling commands, which
67 * are sent to one of the channels.
69 * @author Dan Cunningham - Initial contribution
70 * @author Svilen Valkanov - Replaced Apache HttpClient with Jetty
72 public class AutelisHandler extends BaseThingHandler {
74 private final Logger logger = LoggerFactory.getLogger(AutelisHandler.class);
77 * Default timeout for http connections to a Autelis controller
79 static final int TIMEOUT_SECONDS = 5;
82 * Autelis controllers will not update their XML immediately after we change
83 * a value. To compensate we cache previous values for a {@link Channel}
84 * using the item name as a key. After a polling run has been executed we
85 * only update an channel if the value is different then what's in the
86 * cache. This cache is cleared after a fixed time period when commands are
89 private Map<String, State> stateMap = Collections.synchronizedMap(new HashMap<>());
92 * Clear our state every hour
94 private static final int NORMAL_CLEARTIME_SECONDS = 60 * 60;
97 * Default poll rate rate, this is derived from the Autelis web UI
99 private static final int DEFAULT_REFRESH_SECONDS = 3;
102 * How long should we wait to poll after we send an update, derived from trial and error
104 private static final int COMMAND_UPDATE_TIME_SECONDS = 6;
107 * The autelis unit will 'loose' commands if sent to fast
109 private static final int THROTTLE_TIME_MILLISECONDS = 500;
114 private static final int WEB_PORT = 80;
117 * Pentair values for pump response
119 private static final String[] PUMP_TYPES = { "watts", "rpm", "gpm", "filer", "error" };
122 * Matcher for pump channel names for Pentair
124 private static final Pattern PUMPS_PATTERN = Pattern.compile("(pumps/pump\\d?)-(watts|rpm|gpm|filter|error)");
127 * Holds the next clear time in millis
129 private long clearTime;
132 * Constructed URL consisting of host and port
134 private String baseURL;
142 * The http client used for polling requests
144 private HttpClient client = new HttpClient();
147 * last time we finished a request
149 private long lastRequestTime = 0;
152 * Authentication for login
154 private String basicAuthentication;
157 * Regex expression to match XML responses from the Autelis, this is used to
158 * combine similar XML docs into a single document, {@link XPath} is still
159 * used for XML querying
161 private Pattern responsePattern = Pattern.compile("<response>(.+?)</response>", Pattern.DOTALL);
164 * Future to poll for updated
166 private ScheduledFuture<?> pollFuture;
168 public AutelisHandler(Thing thing) {
173 public void initialize() {
174 startHttpClient(client);
179 public void dispose() {
180 logger.debug("Handler disposed.");
182 stopHttpClient(client);
186 public void channelLinked(ChannelUID channelUID) {
187 // clear our cached values so the new channel gets updated
192 public void handleCommand(ChannelUID channelUID, Command command) {
193 logger.debug("handleCommand channel: {} command: {}", channelUID.getId(), command);
194 if (AutelisBindingConstants.CMD_LIGHTS.equals(channelUID.getId())) {
196 * lighting command possible values, but we will let anything
197 * through. alloff, allon, csync, cset, cswim, party, romance,
198 * caribbean, american, sunset, royalty, blue, green, red, white,
199 * magenta, hold, recall
201 getUrl(baseURL + "/lights.cgi?val=" + command.toString(), TIMEOUT_SECONDS);
202 } else if (AutelisBindingConstants.CMD_REBOOT.equals(channelUID.getId()) && command == OnOffType.ON) {
203 getUrl(baseURL + "/userreboot.cgi?do=true" + command.toString(), TIMEOUT_SECONDS);
204 updateState(channelUID, OnOffType.OFF);
206 String[] args = channelUID.getId().split("-");
207 if (args.length < 2) {
208 logger.warn("Unown channel {} for command {}", channelUID, command);
211 String type = args[0];
212 String name = args[1];
214 if (AutelisBindingConstants.CMD_EQUIPMENT.equals(type)) {
215 String cmd = "value";
217 if (command == OnOffType.OFF) {
219 } else if (command == OnOffType.ON) {
221 } else if (command instanceof DecimalType) {
222 value = ((DecimalType) command).intValue();
223 if (!isJandy() && value >= 3) {
224 // this is a autelis dim type. not sure what 2 does
228 logger.error("command type {} is not supported", command);
231 String response = getUrl(baseURL + "/set.cgi?name=" + name + "&" + cmd + "=" + value, TIMEOUT_SECONDS);
232 logger.debug("equipment set {} {} {} : result {}", name, cmd, value, response);
233 } else if (AutelisBindingConstants.CMD_TEMP.equals(type)) {
235 if (command == IncreaseDecreaseType.INCREASE) {
237 } else if (command == IncreaseDecreaseType.DECREASE) {
239 } else if (command == OnOffType.OFF) {
241 } else if (command == OnOffType.ON) {
244 value = command.toString();
248 // name ending in sp are setpoints, ht are heater?
249 if (name.endsWith("sp")) {
251 } else if (name.endsWith("ht")) {
254 logger.error("Unknown temp type {}", name);
257 String response = getUrl(baseURL + "/set.cgi?wait=1&name=" + name + "&" + cmd + "=" + value,
259 logger.debug("temp set name:{} cmd:{} value:{} : result {}", name, cmd, value, response);
260 } else if (AutelisBindingConstants.CMD_CHEM.equals(type)) {
261 String response = getUrl(baseURL + "/set.cgi?name=" + name + "&chem=" + command.toString(),
263 logger.debug("chlrp {} {}: result {}", name, command, response);
264 } else if (AutelisBindingConstants.CMD_PUMPS.equals(type)) {
265 String response = getUrl(baseURL + "/set.cgi?name=" + name + "&speed=" + command.toString(),
267 logger.debug("pumps {} {}: result {}", name, command, response);
269 logger.error("Unsupported type {}", type);
273 // reset the schedule for our next poll which at that time will reflect if our command was successful or not.
274 initPolling(COMMAND_UPDATE_TIME_SECONDS);
278 * Configures this thing
280 private void configure() {
283 AutelisConfiguration configuration = getConfig().as(AutelisConfiguration.class);
284 Integer refreshOrNull = configuration.refresh;
285 Integer portOrNull = configuration.port;
286 String host = configuration.host;
287 String username = configuration.user;
288 String password = configuration.password;
290 if (username == null || username.isBlank()) {
291 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "username must not be empty");
295 if (password == null || password.isBlank()) {
296 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "password must not be empty");
300 if (host == null || host.isBlank()) {
301 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "hostname must not be empty");
305 refresh = DEFAULT_REFRESH_SECONDS;
306 if (refreshOrNull != null) {
307 refresh = refreshOrNull.intValue();
311 if (portOrNull != null) {
312 port = portOrNull.intValue();
315 baseURL = "http://" + host + ":" + port;
316 basicAuthentication = "Basic " + B64Code.encode(username + ":" + password, StringUtil.__ISO_8859_1);
317 logger.debug("Autelius binding configured with base url {} and refresh period of {}", baseURL, refresh);
323 * Starts/Restarts polling with an initial delay. This allows changes in the poll cycle for when commands are sent
324 * and we need to poll sooner then the next refresh cycle.
326 private synchronized void initPolling(int initalDelay) {
328 pollFuture = scheduler.scheduleWithFixedDelay(() -> {
330 pollAutelisController();
331 } catch (Exception e) {
332 logger.debug("Exception during poll", e);
334 }, initalDelay, DEFAULT_REFRESH_SECONDS, TimeUnit.SECONDS);
338 * Stops/clears this thing's polling future
340 private void clearPolling() {
341 if (pollFuture != null && !pollFuture.isCancelled()) {
342 logger.trace("Canceling future");
343 pollFuture.cancel(false);
348 * Poll the Autelis controller for updates. This will retrieve various xml documents and update channel states from
351 private void pollAutelisController() {
352 logger.trace("Connecting to {}", baseURL);
354 // clear our cached stated IF it is time.
357 // we will reconstruct the document with all the responses combined for XPATH
358 StringBuilder sb = new StringBuilder("<response>");
360 // pull down the three xml documents
361 String[] statuses = { "status", "chem", "pumps" };
363 for (String status : statuses) {
364 String response = getUrl(baseURL + "/" + status + ".xml", TIMEOUT_SECONDS);
365 logger.trace("{}/{}.xml \n {}", baseURL, status, response);
366 if (response == null) {
367 // all models and versions have the status.xml endpoint
368 if (status.equals("status")) {
369 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.OFFLINE.COMMUNICATION_ERROR);
372 // not all models have the other endpoints, so we ignore errors
376 // get the xml data between the response tags and append to our main
378 Matcher m = responsePattern.matcher(response);
380 sb.append(m.group(1));
383 // finish our "new" XML Document
384 sb.append("</response>");
386 if (!ThingStatus.ONLINE.equals(getThing().getStatus())) {
387 updateStatus(ThingStatus.ONLINE);
391 * This xmlDoc will now contain the three XML documents we retrieved
392 * wrapped in response tags for easier querying in XPath.
394 HashMap<String, String> pumps = new HashMap<>();
395 String xmlDoc = sb.toString();
396 for (Channel channel : getThing().getChannels()) {
397 String key = channel.getUID().getId().replaceFirst("-", "/");
398 XPathFactory xpathFactory = XPathFactory.newInstance();
399 XPath xpath = xpathFactory.newXPath();
401 InputSource is = new InputSource(new StringReader(xmlDoc));
405 * Work around for Pentair pumps. Rather then have child XML elements, the response rather uses commas
406 * on the pump response to separate the different values like so:
408 * watts,rpm,gpm,filter,error
410 * Also, some pools will only report the first 3 out of the 5 values.
413 Matcher matcher = PUMPS_PATTERN.matcher(key);
414 if (matcher.matches()) {
415 if (!pumps.containsKey(key)) {
416 String pumpValue = xpath.evaluate("response/" + matcher.group(1), is);
417 String[] values = pumpValue.split(",");
418 for (int i = 0; i < PUMP_TYPES.length; i++) {
420 // this will be something like pump/pump1-rpm
421 String newKey = matcher.group(1) + '-' + PUMP_TYPES[i];
423 // some Pentair models only have the first 3 values
424 if (i < values.length) {
425 pumps.put(newKey, values[i]);
427 pumps.put(newKey, "");
431 value = pumps.get(key);
433 value = xpath.evaluate("response/" + key, is);
435 // Convert pentair salt levels to PPM.
436 if ("chlor/salt".equals(key)) {
438 value = String.valueOf(Integer.parseInt(value) * 50);
439 } catch (NumberFormatException ignored) {
440 logger.debug("Failed to parse pentair salt level as integer");
445 if (value == null || value.isEmpty()) {
449 State state = toState(channel.getAcceptedItemType(), value);
450 State oldState = stateMap.put(channel.getUID().getAsString(), state);
451 if (!state.equals(oldState)) {
452 logger.trace("updating channel {} with state {} (old state {})", channel.getUID(), state, oldState);
453 updateState(channel.getUID(), state);
455 } catch (XPathExpressionException e) {
456 logger.error("could not parse xml", e);
462 * Simple logic to perform a authenticated GET request
468 private synchronized String getUrl(String url, int timeout) {
469 // throttle commands for a very short time to avoid 'loosing' them
470 long now = System.currentTimeMillis();
471 long nextReq = lastRequestTime + THROTTLE_TIME_MILLISECONDS;
474 logger.trace("Throttling request for {} mills", nextReq - now);
475 Thread.sleep(nextReq - now);
476 } catch (InterruptedException ignored) {
479 String getURL = url + (url.contains("?") ? "&" : "?") + "timestamp=" + System.currentTimeMillis();
480 logger.trace("Getting URL {} ", getURL);
481 Request request = client.newRequest(getURL).timeout(TIMEOUT_SECONDS, TimeUnit.SECONDS);
482 request.header(HttpHeader.AUTHORIZATION, basicAuthentication);
484 ContentResponse response = request.send();
485 int statusCode = response.getStatus();
486 if (statusCode != HttpStatus.OK_200) {
487 logger.trace("Method failed: {}", response.getStatus() + " " + response.getReason());
490 lastRequestTime = System.currentTimeMillis();
491 return response.getContentAsString();
492 } catch (Exception e) {
493 logger.debug("Could not make http connection", e);
499 * Converts a {@link String} value to a {@link State} for a given
500 * {@link String} accepted type
504 * @return {@link State}
506 private State toState(String type, String value) throws NumberFormatException {
507 if ("Number".equals(type)) {
508 return new DecimalType(value);
509 } else if ("Switch".equals(type)) {
510 return Integer.parseInt(value) > 0 ? OnOffType.ON : OnOffType.OFF;
512 return StringType.valueOf(value);
517 * Clears our state if it is time
519 private void clearState(boolean force) {
520 if (force || System.currentTimeMillis() >= clearTime) {
522 clearTime = System.currentTimeMillis() + (NORMAL_CLEARTIME_SECONDS * 1000);
526 private void startHttpClient(HttpClient client) {
527 if (!client.isStarted()) {
530 } catch (Exception e) {
531 logger.error("Could not stop HttpClient", e);
536 private void stopHttpClient(HttpClient client) {
537 if (client != null) {
538 client.getAuthenticationStore().clearAuthentications();
539 client.getAuthenticationStore().clearAuthenticationResults();
540 if (client.isStarted()) {
543 } catch (Exception e) {
544 logger.error("Could not stop HttpClient", e);
550 private boolean isJandy() {
551 return getThing().getThingTypeUID() == AutelisBindingConstants.JANDY_THING_TYPE_UID;