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.insteon.internal;
15 import java.io.IOException;
16 import java.util.ArrayList;
17 import java.util.Collections;
18 import java.util.Comparator;
19 import java.util.HashMap;
20 import java.util.HashSet;
21 import java.util.Iterator;
22 import java.util.List;
24 import java.util.Map.Entry;
26 import java.util.concurrent.ConcurrentHashMap;
27 import java.util.concurrent.ScheduledExecutorService;
29 import javax.xml.parsers.ParserConfigurationException;
31 import org.eclipse.jdt.annotation.NonNullByDefault;
32 import org.eclipse.jdt.annotation.Nullable;
33 import org.openhab.binding.insteon.internal.config.InsteonChannelConfiguration;
34 import org.openhab.binding.insteon.internal.config.InsteonNetworkConfiguration;
35 import org.openhab.binding.insteon.internal.device.DeviceFeature;
36 import org.openhab.binding.insteon.internal.device.DeviceFeatureListener;
37 import org.openhab.binding.insteon.internal.device.DeviceType;
38 import org.openhab.binding.insteon.internal.device.DeviceTypeLoader;
39 import org.openhab.binding.insteon.internal.device.InsteonAddress;
40 import org.openhab.binding.insteon.internal.device.InsteonDevice;
41 import org.openhab.binding.insteon.internal.device.InsteonDevice.DeviceStatus;
42 import org.openhab.binding.insteon.internal.device.RequestQueueManager;
43 import org.openhab.binding.insteon.internal.driver.Driver;
44 import org.openhab.binding.insteon.internal.driver.DriverListener;
45 import org.openhab.binding.insteon.internal.driver.ModemDBEntry;
46 import org.openhab.binding.insteon.internal.driver.Poller;
47 import org.openhab.binding.insteon.internal.driver.Port;
48 import org.openhab.binding.insteon.internal.handler.InsteonDeviceHandler;
49 import org.openhab.binding.insteon.internal.handler.InsteonNetworkHandler;
50 import org.openhab.binding.insteon.internal.message.FieldException;
51 import org.openhab.binding.insteon.internal.message.Msg;
52 import org.openhab.binding.insteon.internal.message.MsgListener;
53 import org.openhab.binding.insteon.internal.utils.Utils;
54 import org.openhab.core.io.transport.serial.SerialPortManager;
55 import org.openhab.core.thing.ChannelUID;
56 import org.openhab.core.types.Command;
57 import org.openhab.core.types.State;
58 import org.slf4j.Logger;
59 import org.slf4j.LoggerFactory;
60 import org.xml.sax.SAXException;
63 * A majority of the code in this file is from the openHAB 1 binding
64 * org.openhab.binding.insteonplm.InsteonPLMActiveBinding. Including the comments below.
66 * -----------------------------------------------------------------------------------------------
68 * This class represents the actual implementation of the binding, and controls the high level flow
69 * of messages to and from the InsteonModem.
71 * Writing this binding has been an odyssey through the quirks of the Insteon protocol
72 * and Insteon devices. A substantial redesign was necessary at some point along the way.
73 * Here are some of the hard learned lessons that should be considered by anyone who wants
74 * to re-architect the binding:
76 * 1) The entries of the link database of the modem are not reliable. The category/subcategory entries in
77 * particular have junk data. Forget about using the modem database to generate a list of devices.
78 * The database should only be used to verify that a device has been linked.
80 * 2) Querying devices for their product information does not work either. First of all, battery operated devices
81 * (and there are a lot of those) have their radio switched off, and may generally not respond to product
82 * queries. Even main stream hardwired devices sold presently (like the 2477s switch and the 2477d dimmer)
83 * don't even have a product ID. Although supposedly part of the Insteon protocol, we have yet to
84 * encounter a device that would cough up a product id when queried, even among very recent devices. They
85 * simply return zeros as product id. Lesson: forget about querying devices to generate a device list.
87 * 3) Polling is a thorny issue: too much traffic on the network, and messages will be dropped left and right,
88 * and not just the poll related ones, but others as well. In particular sending back-to-back messages
89 * seemed to result in the second message simply never getting sent, without flow control back pressure
90 * (NACK) from the modem. For now the work-around is to space out the messages upon sending, and
91 * in general poll as infrequently as acceptable.
93 * 4) Instantiating and tracking devices when reported by the modem (either from the database, or when
94 * messages are received) leads to complicated state management because there is no guarantee at what
95 * point (if at all) the binding configuration will be available. It gets even more difficult when
96 * items are created, destroyed, and modified while the binding runs.
98 * For the above reasons, devices are only instantiated when they are referenced by binding information.
99 * As nice as it would be to discover devices and their properties dynamically, we have abandoned that
100 * path because it had led to a complicated and fragile system which due to the technical limitations
101 * above was inherently squirrely.
104 * @author Bernd Pfrommer - Initial contribution
105 * @author Daniel Pfrommer - openHAB 1 insteonplm binding
106 * @author Rob Nielsen - Port to openHAB 2 insteon binding
109 public class InsteonBinding {
110 private static final int DEAD_DEVICE_COUNT = 10;
112 private final Logger logger = LoggerFactory.getLogger(InsteonBinding.class);
114 private Driver driver;
115 private Map<InsteonAddress, InsteonDevice> devices = new ConcurrentHashMap<>();
116 private Map<String, InsteonChannelConfiguration> bindingConfigs = new ConcurrentHashMap<>();
117 private PortListener portListener = new PortListener();
118 private int devicePollIntervalMilliseconds = 300000;
119 private int deadDeviceTimeout = -1;
120 private int messagesReceived = 0;
121 private boolean isActive = false; // state of binding
122 private int x10HouseUnit = -1;
123 private InsteonNetworkHandler handler;
125 public InsteonBinding(InsteonNetworkHandler handler, InsteonNetworkConfiguration config,
126 SerialPortManager serialPortManager, ScheduledExecutorService scheduler) {
127 this.handler = handler;
129 String port = config.getPort();
130 logger.debug("port = '{}'", Utils.redactPassword(port));
132 driver = new Driver(port, portListener, serialPortManager, scheduler);
133 driver.addMsgListener(portListener);
135 Integer devicePollIntervalSeconds = config.getDevicePollIntervalSeconds();
136 if (devicePollIntervalSeconds != null) {
137 devicePollIntervalMilliseconds = devicePollIntervalSeconds * 1000;
139 logger.debug("device poll interval set to {} seconds", devicePollIntervalMilliseconds / 1000);
141 String additionalDevices = config.getAdditionalDevices();
142 if (additionalDevices != null) {
144 DeviceTypeLoader instance = DeviceTypeLoader.instance();
145 if (instance != null) {
146 instance.loadDeviceTypesXML(additionalDevices);
147 logger.debug("read additional device definitions from {}", additionalDevices);
149 logger.warn("device type loader instance is null");
151 } catch (ParserConfigurationException | SAXException | IOException e) {
152 logger.warn("error reading additional devices from {}", additionalDevices, e);
156 String additionalFeatures = config.getAdditionalFeatures();
157 if (additionalFeatures != null) {
158 logger.debug("reading additional feature templates from {}", additionalFeatures);
159 DeviceFeature.readFeatureTemplates(additionalFeatures);
162 deadDeviceTimeout = devicePollIntervalMilliseconds * DEAD_DEVICE_COUNT;
163 logger.debug("dead device timeout set to {} seconds", deadDeviceTimeout / 1000);
166 public Driver getDriver() {
170 public boolean startPolling() {
171 logger.debug("starting to poll {}", driver.getPortName());
173 return driver.isRunning();
176 public void setIsActive(boolean isActive) {
177 this.isActive = isActive;
180 public void sendCommand(String channelName, Command command) {
182 logger.debug("not ready to handle commands yet, returning.");
186 InsteonChannelConfiguration bindingConfig = bindingConfigs.get(channelName);
187 if (bindingConfig == null) {
188 logger.warn("unable to find binding config for channel {}", channelName);
192 InsteonDevice dev = getDevice(bindingConfig.getAddress());
194 logger.warn("no device found with insteon address {}", bindingConfig.getAddress());
198 dev.processCommand(driver, bindingConfig, command);
200 logger.debug("found binding config for channel {}", channelName);
203 public void addFeatureListener(InsteonChannelConfiguration bindingConfig) {
204 logger.debug("adding listener for channel {}", bindingConfig.getChannelName());
206 InsteonAddress address = bindingConfig.getAddress();
207 InsteonDevice dev = getDevice(address);
209 logger.warn("device for address {} is null", address);
213 DeviceFeature f = dev.getFeature(bindingConfig.getFeature());
214 if (f == null || f.isFeatureGroup()) {
215 StringBuilder buf = new StringBuilder();
216 ArrayList<String> names = new ArrayList<>(dev.getFeatures().keySet());
217 Collections.sort(names);
218 for (String name : names) {
219 DeviceFeature feature = dev.getFeature(name);
220 if (feature != null && !feature.isFeatureGroup()) {
221 if (buf.length() > 0) {
228 logger.warn("channel {} references unknown feature: {}, it will be ignored. Known features for {} are: {}.",
229 bindingConfig.getChannelName(), bindingConfig.getFeature(), bindingConfig.getProductKey(),
234 DeviceFeatureListener fl = new DeviceFeatureListener(this, bindingConfig.getChannelUID(),
235 bindingConfig.getChannelName());
236 fl.setParameters(bindingConfig.getParameters());
239 bindingConfigs.put(bindingConfig.getChannelName(), bindingConfig);
242 public void removeFeatureListener(ChannelUID channelUID) {
243 String channelName = channelUID.getAsString();
245 logger.debug("removing listener for channel {}", channelName);
247 for (Iterator<Entry<InsteonAddress, InsteonDevice>> it = devices.entrySet().iterator(); it.hasNext();) {
248 InsteonDevice dev = it.next().getValue();
249 boolean removedListener = dev.removeFeatureListener(channelName);
250 if (removedListener) {
251 logger.trace("removed feature listener {} from dev {}", channelName, dev);
256 public void updateFeatureState(ChannelUID channelUID, State state) {
257 handler.updateState(channelUID, state);
260 public @Nullable InsteonDevice makeNewDevice(InsteonAddress addr, String productKey,
261 Map<String, Object> deviceConfigMap) {
262 DeviceTypeLoader instance = DeviceTypeLoader.instance();
263 if (instance == null) {
266 DeviceType dt = instance.getDeviceType(productKey);
270 InsteonDevice dev = InsteonDevice.makeDevice(dt);
271 dev.setAddress(addr);
272 dev.setProductKey(productKey);
273 dev.setDriver(driver);
274 dev.setIsModem(productKey.equals(InsteonDeviceHandler.PLM_PRODUCT_KEY));
275 dev.setDeviceConfigMap(deviceConfigMap);
276 if (!dev.hasValidPollingInterval()) {
277 dev.setPollInterval(devicePollIntervalMilliseconds);
279 if (driver.isModemDBComplete() && dev.getStatus() != DeviceStatus.POLLING) {
280 int ndev = checkIfInModemDatabase(dev);
281 if (dev.hasModemDBEntry()) {
282 dev.setStatus(DeviceStatus.POLLING);
283 Poller.instance().startPolling(dev, ndev);
286 devices.put(addr, dev);
288 handler.insteonDeviceWasCreated();
293 public void removeDevice(InsteonAddress addr) {
294 InsteonDevice dev = devices.remove(addr);
299 if (dev.getStatus() == DeviceStatus.POLLING) {
300 Poller.instance().stopPolling(dev);
305 * Checks if a device is in the modem link database, and, if the database
306 * is complete, logs a warning if the device is not present
308 * @param dev The device to search for in the modem database
309 * @return number of devices in modem database
311 private int checkIfInModemDatabase(InsteonDevice dev) {
313 InsteonAddress addr = dev.getAddress();
314 Map<InsteonAddress, ModemDBEntry> dbes = driver.lockModemDBEntries();
315 if (dbes.containsKey(addr)) {
316 if (!dev.hasModemDBEntry()) {
317 logger.debug("device {} found in the modem database and {}.", addr, getLinkInfo(dbes, addr, true));
318 dev.setHasModemDBEntry(true);
321 if (driver.isModemDBComplete() && !addr.isX10()) {
322 logger.warn("device {} not found in the modem database. Did you forget to link?", addr);
323 handler.deviceNotLinked(addr);
328 driver.unlockModemDBEntries();
332 public Map<String, String> getDatabaseInfo() {
334 Map<String, String> databaseInfo = new HashMap<>();
335 Map<InsteonAddress, ModemDBEntry> dbes = driver.lockModemDBEntries();
336 for (InsteonAddress addr : dbes.keySet()) {
337 String a = addr.toString();
338 databaseInfo.put(a, a + ": " + getLinkInfo(dbes, addr, false));
343 driver.unlockModemDBEntries();
347 public boolean reconnect() {
349 return startPolling();
353 * Everything below was copied from Insteon PLM v1
357 * Clean up all state.
359 public void shutdown() {
360 logger.debug("shutting down Insteon bridge");
363 RequestQueueManager.destroyInstance();
364 Poller.instance().stop();
369 * Method to find a device by address
371 * @param aAddr the insteon address to search for
372 * @return reference to the device, or null if not found
374 public @Nullable InsteonDevice getDevice(@Nullable InsteonAddress aAddr) {
375 InsteonDevice dev = (aAddr == null) ? null : devices.get(aAddr);
379 private String getLinkInfo(Map<InsteonAddress, ModemDBEntry> dbes, InsteonAddress a, boolean prefix) {
380 ModemDBEntry dbe = dbes.get(a);
384 List<Byte> controls = dbe.getControls();
385 List<Byte> responds = dbe.getRespondsTo();
387 Port port = dbe.getPort();
391 String deviceName = port.getDeviceName();
392 String s = deviceName.startsWith("/hub") ? "hub" : "plm";
393 StringBuilder buf = new StringBuilder();
394 if (port.isModem(a)) {
396 buf.append("it is the ");
400 buf.append(Utils.redactPassword(deviceName));
407 buf.append(" controls groups (");
408 buf.append(toGroupString(controls));
409 buf.append(") and responds to groups (");
410 buf.append(toGroupString(responds));
414 return buf.toString();
417 private String toGroupString(List<Byte> group) {
418 List<Byte> sorted = new ArrayList<>(group);
419 Collections.sort(sorted, new Comparator<Byte>() {
421 public int compare(Byte b1, Byte b2) {
424 return i1 < i2 ? -1 : i1 == i2 ? 0 : 1;
428 StringBuilder buf = new StringBuilder();
429 for (Byte b : sorted) {
430 if (buf.length() > 0) {
433 buf.append(b & 0xFF);
436 return buf.toString();
439 public void logDeviceStatistics() {
440 String msg = String.format("devices: %3d configured, %3d polling, msgs received: %5d", devices.size(),
441 Poller.instance().getSizeOfQueue(), messagesReceived);
442 logger.debug("{}", msg);
443 messagesReceived = 0;
444 for (InsteonDevice dev : devices.values()) {
448 if (deadDeviceTimeout > 0 && dev.getPollOverDueTime() > deadDeviceTimeout) {
449 logger.debug("device {} has not responded to polls for {} sec", dev.toString(),
450 dev.getPollOverDueTime() / 3600);
456 * Handles messages that come in from the ports.
457 * Will only process one message at a time.
459 private class PortListener implements MsgListener, DriverListener {
461 public void msg(Msg msg) {
462 if (msg.isEcho() || msg.isPureNack()) {
466 logger.debug("got msg: {}", msg);
468 handleX10Message(msg);
470 handleInsteonMessage(msg);
475 public void driverCompletelyInitialized() {
476 List<String> missing = new ArrayList<>();
478 Map<InsteonAddress, ModemDBEntry> dbes = driver.lockModemDBEntries();
479 logger.debug("modem database has {} entries!", dbes.size());
480 if (dbes.isEmpty()) {
481 logger.warn("the modem link database is empty!");
483 for (InsteonAddress k : dbes.keySet()) {
484 logger.debug("modem db entry: {}", k);
486 Set<InsteonAddress> addrs = new HashSet<>();
487 for (InsteonDevice dev : devices.values()) {
488 InsteonAddress a = dev.getAddress();
489 if (!dbes.containsKey(a)) {
491 logger.warn("device {} not found in the modem database. Did you forget to link?", a);
492 handler.deviceNotLinked(a);
495 if (!dev.hasModemDBEntry()) {
497 logger.debug("device {} found in the modem database and {}.", a,
498 getLinkInfo(dbes, a, true));
499 dev.setHasModemDBEntry(true);
501 if (dev.getStatus() != DeviceStatus.POLLING) {
502 Poller.instance().startPolling(dev, dbes.size());
507 for (InsteonAddress k : dbes.keySet()) {
508 if (!addrs.contains(k)) {
509 logger.debug("device {} found in the modem database, but is not configured as a thing and {}.",
510 k, getLinkInfo(dbes, k, true));
512 missing.add(k.toString());
516 driver.unlockModemDBEntries();
519 if (!missing.isEmpty()) {
520 handler.addMissingDevices(missing);
525 public void disconnected() {
526 handler.bindingDisconnected();
529 private void handleInsteonMessage(Msg msg) {
530 InsteonAddress toAddr = msg.getAddr("toAddress");
531 if (!msg.isBroadcast() && !driver.isMsgForUs(toAddr)) {
532 // not for one of our modems, do not process
535 InsteonAddress fromAddr = msg.getAddr("fromAddress");
536 if (fromAddr == null) {
537 logger.debug("invalid fromAddress, ignoring msg {}", msg);
540 handleMessage(fromAddr, msg);
543 private void handleX10Message(Msg msg) {
545 int x10Flag = msg.getByte("X10Flag") & 0xff;
546 int rawX10 = msg.getByte("rawX10") & 0xff;
547 if (x10Flag == 0x80) { // actual command
548 if (x10HouseUnit != -1) {
549 InsteonAddress fromAddr = new InsteonAddress((byte) x10HouseUnit);
550 handleMessage(fromAddr, msg);
552 } else if (x10Flag == 0) {
553 // what unit the next cmd will apply to
554 x10HouseUnit = rawX10 & 0xFF;
556 } catch (FieldException e) {
557 logger.warn("got bad X10 message: {}", msg, e);
562 private void handleMessage(InsteonAddress fromAddr, Msg msg) {
563 InsteonDevice dev = getDevice(fromAddr);
565 logger.debug("dropping message from unknown device with address {}", fromAddr);
567 dev.handleMessage(msg);