2 * Copyright (c) 2010-2020 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 @SuppressWarnings({ "null", "unused" })
110 public class InsteonBinding {
111 private static final int DEAD_DEVICE_COUNT = 10;
113 private final Logger logger = LoggerFactory.getLogger(InsteonBinding.class);
115 private Driver driver;
116 private ConcurrentHashMap<InsteonAddress, InsteonDevice> devices = new ConcurrentHashMap<>();
117 private ConcurrentHashMap<String, InsteonChannelConfiguration> bindingConfigs = new ConcurrentHashMap<>();
118 private PortListener portListener = new PortListener();
119 private int devicePollIntervalMilliseconds = 300000;
120 private int deadDeviceTimeout = -1;
121 private int messagesReceived = 0;
122 private boolean isActive = false; // state of binding
123 private int x10HouseUnit = -1;
124 private InsteonNetworkHandler handler;
126 public InsteonBinding(InsteonNetworkHandler handler, @Nullable InsteonNetworkConfiguration config,
127 @Nullable SerialPortManager serialPortManager, ScheduledExecutorService scheduler) {
128 this.handler = handler;
130 String port = config.getPort();
131 logger.debug("port = '{}'", Utils.redactPassword(port));
133 driver = new Driver(port, portListener, serialPortManager, scheduler);
134 driver.addMsgListener(portListener);
136 Integer devicePollIntervalSeconds = config.getDevicePollIntervalSeconds();
137 if (devicePollIntervalSeconds != null) {
138 devicePollIntervalMilliseconds = devicePollIntervalSeconds * 1000;
140 logger.debug("device poll interval set to {} seconds", devicePollIntervalMilliseconds / 1000);
142 String additionalDevices = config.getAdditionalDevices();
143 if (additionalDevices != null) {
145 DeviceTypeLoader.instance().loadDeviceTypesXML(additionalDevices);
146 logger.debug("read additional device definitions from {}", additionalDevices);
147 } catch (ParserConfigurationException | SAXException | IOException e) {
148 logger.warn("error reading additional devices from {}", additionalDevices, e);
152 String additionalFeatures = config.getAdditionalFeatures();
153 if (additionalFeatures != null) {
154 logger.debug("reading additional feature templates from {}", additionalFeatures);
155 DeviceFeature.readFeatureTemplates(additionalFeatures);
158 deadDeviceTimeout = devicePollIntervalMilliseconds * DEAD_DEVICE_COUNT;
159 logger.debug("dead device timeout set to {} seconds", deadDeviceTimeout / 1000);
162 public Driver getDriver() {
166 public boolean startPolling() {
167 logger.debug("starting to poll {}", driver.getPortName());
169 return driver.isRunning();
172 public void setIsActive(boolean isActive) {
173 this.isActive = isActive;
176 public void sendCommand(String channelName, Command command) {
178 logger.debug("not ready to handle commands yet, returning.");
182 InsteonChannelConfiguration bindingConfig = bindingConfigs.get(channelName);
183 if (bindingConfig == null) {
184 logger.warn("unable to find binding config for channel {}", channelName);
188 InsteonDevice dev = getDevice(bindingConfig.getAddress());
190 logger.warn("no device found with insteon address {}", bindingConfig.getAddress());
194 dev.processCommand(driver, bindingConfig, command);
196 logger.debug("found binding config for channel {}", channelName);
199 public void addFeatureListener(InsteonChannelConfiguration bindingConfig) {
200 logger.debug("adding listener for channel {}", bindingConfig.getChannelName());
202 InsteonAddress address = bindingConfig.getAddress();
203 InsteonDevice dev = getDevice(address);
205 DeviceFeature f = dev.getFeature(bindingConfig.getFeature());
206 if (f == null || f.isFeatureGroup()) {
207 StringBuilder buf = new StringBuilder();
208 ArrayList<String> names = new ArrayList<>(dev.getFeatures().keySet());
209 Collections.sort(names);
210 for (String name : names) {
211 DeviceFeature feature = dev.getFeature(name);
212 if (!feature.isFeatureGroup()) {
213 if (buf.length() > 0) {
220 logger.warn("channel {} references unknown feature: {}, it will be ignored. Known features for {} are: {}.",
221 bindingConfig.getChannelName(), bindingConfig.getFeature(), bindingConfig.getProductKey(),
226 DeviceFeatureListener fl = new DeviceFeatureListener(this, bindingConfig.getChannelUID(),
227 bindingConfig.getChannelName());
228 fl.setParameters(bindingConfig.getParameters());
231 bindingConfigs.put(bindingConfig.getChannelName(), bindingConfig);
234 public void removeFeatureListener(ChannelUID channelUID) {
235 String channelName = channelUID.getAsString();
237 logger.debug("removing listener for channel {}", channelName);
239 for (Iterator<Entry<InsteonAddress, InsteonDevice>> it = devices.entrySet().iterator(); it.hasNext();) {
240 InsteonDevice dev = it.next().getValue();
241 boolean removedListener = dev.removeFeatureListener(channelName);
242 if (removedListener) {
243 logger.trace("removed feature listener {} from dev {}", channelName, dev);
248 public void updateFeatureState(ChannelUID channelUID, State state) {
249 handler.updateState(channelUID, state);
252 public InsteonDevice makeNewDevice(InsteonAddress addr, String productKey, Map<String, Object> deviceConfigMap) {
253 DeviceType dt = DeviceTypeLoader.instance().getDeviceType(productKey);
254 InsteonDevice dev = InsteonDevice.makeDevice(dt);
255 dev.setAddress(addr);
256 dev.setProductKey(productKey);
257 dev.setDriver(driver);
258 dev.setIsModem(productKey.equals(InsteonDeviceHandler.PLM_PRODUCT_KEY));
259 dev.setDeviceConfigMap(deviceConfigMap);
260 if (!dev.hasValidPollingInterval()) {
261 dev.setPollInterval(devicePollIntervalMilliseconds);
263 if (driver.isModemDBComplete() && dev.getStatus() != DeviceStatus.POLLING) {
264 int ndev = checkIfInModemDatabase(dev);
265 if (dev.hasModemDBEntry()) {
266 dev.setStatus(DeviceStatus.POLLING);
267 Poller.instance().startPolling(dev, ndev);
270 devices.put(addr, dev);
272 handler.insteonDeviceWasCreated();
277 public void removeDevice(InsteonAddress addr) {
278 InsteonDevice dev = devices.remove(addr);
283 if (dev.getStatus() == DeviceStatus.POLLING) {
284 Poller.instance().stopPolling(dev);
289 * Checks if a device is in the modem link database, and, if the database
290 * is complete, logs a warning if the device is not present
292 * @param dev The device to search for in the modem database
293 * @return number of devices in modem database
295 private int checkIfInModemDatabase(InsteonDevice dev) {
297 InsteonAddress addr = dev.getAddress();
298 Map<InsteonAddress, ModemDBEntry> dbes = driver.lockModemDBEntries();
299 if (dbes.containsKey(addr)) {
300 if (!dev.hasModemDBEntry()) {
301 logger.debug("device {} found in the modem database and {}.", addr, getLinkInfo(dbes, addr, true));
302 dev.setHasModemDBEntry(true);
305 if (driver.isModemDBComplete() && !addr.isX10()) {
306 logger.warn("device {} not found in the modem database. Did you forget to link?", addr);
311 driver.unlockModemDBEntries();
315 public Map<String, String> getDatabaseInfo() {
317 Map<String, String> databaseInfo = new HashMap<>();
318 Map<InsteonAddress, ModemDBEntry> dbes = driver.lockModemDBEntries();
319 for (InsteonAddress addr : dbes.keySet()) {
320 String a = addr.toString();
321 databaseInfo.put(a, a + ": " + getLinkInfo(dbes, addr, false));
326 driver.unlockModemDBEntries();
330 public boolean reconnect() {
332 return startPolling();
336 * Everything below was copied from Insteon PLM v1
340 * Clean up all state.
342 public void shutdown() {
343 logger.debug("shutting down Insteon bridge");
346 RequestQueueManager.destroyInstance();
347 Poller.instance().stop();
352 * Method to find a device by address
354 * @param aAddr the insteon address to search for
355 * @return reference to the device, or null if not found
357 public @Nullable InsteonDevice getDevice(@Nullable InsteonAddress aAddr) {
358 InsteonDevice dev = (aAddr == null) ? null : devices.get(aAddr);
362 private String getLinkInfo(Map<InsteonAddress, ModemDBEntry> dbes, InsteonAddress a, boolean prefix) {
363 ModemDBEntry dbe = dbes.get(a);
364 List<Byte> controls = dbe.getControls();
365 List<Byte> responds = dbe.getRespondsTo();
367 Port port = dbe.getPort();
368 String deviceName = port.getDeviceName();
369 String s = deviceName.startsWith("/hub") ? "hub" : "plm";
370 StringBuilder buf = new StringBuilder();
371 if (port.isModem(a)) {
373 buf.append("it is the ");
377 buf.append(Utils.redactPassword(deviceName));
384 buf.append(" controls groups (");
385 buf.append(toGroupString(controls));
386 buf.append(") and responds to groups (");
387 buf.append(toGroupString(responds));
391 return buf.toString();
394 private String toGroupString(List<Byte> group) {
395 List<Byte> sorted = new ArrayList<>(group);
396 Collections.sort(sorted, new Comparator<Byte>() {
398 public int compare(Byte b1, Byte b2) {
401 return i1 < i2 ? -1 : i1 == i2 ? 0 : 1;
405 StringBuilder buf = new StringBuilder();
406 for (Byte b : sorted) {
407 if (buf.length() > 0) {
410 buf.append(b & 0xFF);
413 return buf.toString();
416 public void logDeviceStatistics() {
417 String msg = String.format("devices: %3d configured, %3d polling, msgs received: %5d", devices.size(),
418 Poller.instance().getSizeOfQueue(), messagesReceived);
419 logger.debug("{}", msg);
420 messagesReceived = 0;
421 for (InsteonDevice dev : devices.values()) {
425 if (deadDeviceTimeout > 0 && dev.getPollOverDueTime() > deadDeviceTimeout) {
426 logger.debug("device {} has not responded to polls for {} sec", dev.toString(),
427 dev.getPollOverDueTime() / 3600);
433 * Handles messages that come in from the ports.
434 * Will only process one message at a time.
437 private class PortListener implements MsgListener, DriverListener {
439 public void msg(Msg msg) {
440 if (msg.isEcho() || msg.isPureNack()) {
444 logger.debug("got msg: {}", msg);
446 handleX10Message(msg);
448 handleInsteonMessage(msg);
453 public void driverCompletelyInitialized() {
454 List<String> missing = new ArrayList<>();
456 Map<InsteonAddress, ModemDBEntry> dbes = driver.lockModemDBEntries();
457 logger.debug("modem database has {} entries!", dbes.size());
458 if (dbes.isEmpty()) {
459 logger.warn("the modem link database is empty!");
461 for (InsteonAddress k : dbes.keySet()) {
462 logger.debug("modem db entry: {}", k);
464 Set<InsteonAddress> addrs = new HashSet<>();
465 for (InsteonDevice dev : devices.values()) {
466 InsteonAddress a = dev.getAddress();
467 if (!dbes.containsKey(a)) {
469 logger.warn("device {} not found in the modem database. Did you forget to link?", a);
472 if (!dev.hasModemDBEntry()) {
474 logger.debug("device {} found in the modem database and {}.", a,
475 getLinkInfo(dbes, a, true));
476 dev.setHasModemDBEntry(true);
478 if (dev.getStatus() != DeviceStatus.POLLING) {
479 Poller.instance().startPolling(dev, dbes.size());
484 for (InsteonAddress k : dbes.keySet()) {
485 if (!addrs.contains(k)) {
486 logger.debug("device {} found in the modem database, but is not configured as a thing and {}.",
487 k, getLinkInfo(dbes, k, true));
489 missing.add(k.toString());
493 driver.unlockModemDBEntries();
496 if (!missing.isEmpty()) {
497 handler.addMissingDevices(missing);
502 public void disconnected() {
503 handler.bindingDisconnected();
506 private void handleInsteonMessage(Msg msg) {
507 InsteonAddress toAddr = msg.getAddr("toAddress");
508 if (!msg.isBroadcast() && !driver.isMsgForUs(toAddr)) {
509 // not for one of our modems, do not process
512 InsteonAddress fromAddr = msg.getAddr("fromAddress");
513 if (fromAddr == null) {
514 logger.debug("invalid fromAddress, ignoring msg {}", msg);
517 handleMessage(fromAddr, msg);
520 private void handleX10Message(Msg msg) {
522 int x10Flag = msg.getByte("X10Flag") & 0xff;
523 int rawX10 = msg.getByte("rawX10") & 0xff;
524 if (x10Flag == 0x80) { // actual command
525 if (x10HouseUnit != -1) {
526 InsteonAddress fromAddr = new InsteonAddress((byte) x10HouseUnit);
527 handleMessage(fromAddr, msg);
529 } else if (x10Flag == 0) {
530 // what unit the next cmd will apply to
531 x10HouseUnit = rawX10 & 0xFF;
533 } catch (FieldException e) {
534 logger.warn("got bad X10 message: {}", msg, e);
539 private void handleMessage(InsteonAddress fromAddr, Msg msg) {
540 InsteonDevice dev = getDevice(fromAddr);
542 logger.debug("dropping message from unknown device with address {}", fromAddr);
544 dev.handleMessage(msg);