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.lcn.internal;
15 import java.util.ArrayList;
16 import java.util.Collection;
17 import java.util.Collections;
18 import java.util.HashMap;
19 import java.util.List;
21 import java.util.NoSuchElementException;
22 import java.util.Optional;
24 import org.eclipse.jdt.annotation.NonNullByDefault;
25 import org.eclipse.jdt.annotation.Nullable;
26 import org.openhab.binding.lcn.internal.common.DimmerOutputCommand;
27 import org.openhab.binding.lcn.internal.common.LcnAddr;
28 import org.openhab.binding.lcn.internal.common.LcnAddrMod;
29 import org.openhab.binding.lcn.internal.common.LcnChannelGroup;
30 import org.openhab.binding.lcn.internal.common.LcnException;
31 import org.openhab.binding.lcn.internal.connection.Connection;
32 import org.openhab.binding.lcn.internal.connection.ModInfo;
33 import org.openhab.binding.lcn.internal.converter.Converter;
34 import org.openhab.binding.lcn.internal.converter.Converters;
35 import org.openhab.binding.lcn.internal.converter.InversionConverter;
36 import org.openhab.binding.lcn.internal.converter.S0Converter;
37 import org.openhab.binding.lcn.internal.subhandler.AbstractLcnModuleSubHandler;
38 import org.openhab.binding.lcn.internal.subhandler.LcnModuleMetaAckSubHandler;
39 import org.openhab.binding.lcn.internal.subhandler.LcnModuleMetaFirmwareSubHandler;
40 import org.openhab.core.library.types.DecimalType;
41 import org.openhab.core.library.types.HSBType;
42 import org.openhab.core.library.types.OnOffType;
43 import org.openhab.core.library.types.PercentType;
44 import org.openhab.core.library.types.QuantityType;
45 import org.openhab.core.library.types.StopMoveType;
46 import org.openhab.core.library.types.StringType;
47 import org.openhab.core.library.types.UpDownType;
48 import org.openhab.core.thing.Bridge;
49 import org.openhab.core.thing.Channel;
50 import org.openhab.core.thing.ChannelUID;
51 import org.openhab.core.thing.Thing;
52 import org.openhab.core.thing.ThingStatus;
53 import org.openhab.core.thing.ThingStatusDetail;
54 import org.openhab.core.thing.binding.BaseThingHandler;
55 import org.openhab.core.thing.binding.ThingHandlerService;
56 import org.openhab.core.types.Command;
57 import org.openhab.core.types.RefreshType;
58 import org.openhab.core.types.State;
59 import org.slf4j.Logger;
60 import org.slf4j.LoggerFactory;
63 * The {@link LcnModuleHandler} is responsible for handling commands, which are
64 * sent to or received from one of the channels.
66 * @author Fabian Wolter - Initial contribution
69 public class LcnModuleHandler extends BaseThingHandler {
70 private final Logger logger = LoggerFactory.getLogger(LcnModuleHandler.class);
71 private static final Map<String, Converter> VALUE_CONVERTERS = new HashMap<>();
72 private static final InversionConverter INVERSION_CONVERTER = new InversionConverter();
73 private @Nullable LcnAddrMod moduleAddress;
74 private final Map<LcnChannelGroup, AbstractLcnModuleSubHandler> subHandlers = new HashMap<>();
75 private final List<AbstractLcnModuleSubHandler> metadataSubHandlers = new ArrayList<>();
76 private final Map<ChannelUID, Converter> converters = new HashMap<>();
79 VALUE_CONVERTERS.put("temperature", Converters.TEMPERATURE);
80 VALUE_CONVERTERS.put("light", Converters.LIGHT);
81 VALUE_CONVERTERS.put("co2", Converters.CO2);
82 VALUE_CONVERTERS.put("current", Converters.CURRENT);
83 VALUE_CONVERTERS.put("voltage", Converters.VOLTAGE);
84 VALUE_CONVERTERS.put("angle", Converters.ANGLE);
85 VALUE_CONVERTERS.put("windspeed", Converters.WINDSPEED);
88 public LcnModuleHandler(Thing thing) {
93 public void initialize() {
94 LcnModuleConfiguration localConfig = getConfigAs(LcnModuleConfiguration.class);
95 LcnAddrMod localModuleAddress = moduleAddress = new LcnAddrMod(localConfig.segmentId, localConfig.moduleId);
98 // Determine serial number of manually added modules
99 requestFirmwareVersionAndSerialNumberIfNotSet();
101 // create sub handlers
102 ModInfo info = getPckGatewayHandler().getModInfo(localModuleAddress);
103 for (LcnChannelGroup type : LcnChannelGroup.values()) {
104 subHandlers.put(type, type.createSubHandler(this, info));
107 // meta sub handlers, which are not assigned to a channel group
108 metadataSubHandlers.add(new LcnModuleMetaAckSubHandler(this, info));
109 metadataSubHandlers.add(new LcnModuleMetaFirmwareSubHandler(this, info));
111 // initialize converters
112 for (Channel channel : thing.getChannels()) {
113 Object unitObject = channel.getConfiguration().get("unit");
114 Object parameterObject = channel.getConfiguration().get("parameter");
115 Object invertState = channel.getConfiguration().get("invertState");
116 Object invertUpDown = channel.getConfiguration().get("invertUpDown");
118 // Initialize value converters
119 if (unitObject instanceof String) {
120 switch ((String) unitObject) {
123 converters.put(channel.getUID(), new S0Converter(parameterObject));
126 Converter converter = VALUE_CONVERTERS.get(unitObject);
127 if (converter != null) {
128 converters.put(channel.getUID(), converter);
134 // Initialize inversion converter
135 if (Boolean.TRUE.equals(invertState) || Boolean.TRUE.equals(invertUpDown)) {
136 converters.put(channel.getUID(), INVERSION_CONVERTER);
141 // module is assumed as online, when the corresponding Bridge (PckGatewayHandler) is online.
142 updateStatus(ThingStatus.ONLINE);
144 // trigger REFRESH commands for all linked Channels to start polling
145 getThing().getChannels().forEach(channel -> {
146 if (isLinked(channel.getUID())) {
147 channelLinked(channel.getUID());
150 } catch (LcnException e) {
151 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, e.getMessage());
156 * Triggers requesting the firmware version of the LCN module. The message also contains the serial number.
158 * @throws LcnException when the handler is not initialized
160 protected void requestFirmwareVersionAndSerialNumberIfNotSet() throws LcnException {
161 String serialNumber = getThing().getProperties().get(Thing.PROPERTY_SERIAL_NUMBER);
162 if (serialNumber == null || serialNumber.isEmpty()) {
163 LcnAddrMod localModuleAddress = moduleAddress;
164 if (localModuleAddress != null) {
165 getPckGatewayHandler().getModInfo(localModuleAddress).requestFirmwareVersion();
171 public void handleCommand(ChannelUID channelUid, Command command) {
173 String groupId = channelUid.getGroupId();
175 if (!channelUid.isInGroup()) {
179 if (groupId == null) {
180 throw new LcnException("Group ID is null");
183 LcnChannelGroup channelGroup = LcnChannelGroup.valueOf(groupId.toUpperCase());
184 AbstractLcnModuleSubHandler subHandler = subHandlers.get(channelGroup);
186 if (subHandler == null) {
187 throw new LcnException("Sub Handler not found for: " + channelGroup);
190 Optional<Integer> number = channelUidToChannelNumber(channelUid, channelGroup);
192 if (command instanceof RefreshType) {
193 number.ifPresent(n -> subHandler.handleRefresh(channelGroup, n));
194 subHandler.handleRefresh(channelUid.getIdWithoutGroup());
195 } else if (command instanceof OnOffType) {
196 subHandler.handleCommandOnOff((OnOffType) command, channelGroup, number.get());
197 } else if (command instanceof DimmerOutputCommand) {
198 subHandler.handleCommandDimmerOutput((DimmerOutputCommand) command, number.get());
199 } else if (command instanceof PercentType && number.isPresent()) {
200 subHandler.handleCommandPercent((PercentType) command, channelGroup, number.get());
201 } else if (command instanceof HSBType) {
202 subHandler.handleCommandHsb((HSBType) command, channelUid.getIdWithoutGroup());
203 } else if (command instanceof PercentType) {
204 subHandler.handleCommandPercent((PercentType) command, channelGroup, channelUid.getIdWithoutGroup());
205 } else if (command instanceof StringType) {
206 subHandler.handleCommandString((StringType) command, number.get());
207 } else if (command instanceof DecimalType) {
208 DecimalType decimalType = (DecimalType) command;
209 DecimalType nativeValue = getConverter(channelUid).onCommandFromItem(decimalType.doubleValue());
210 subHandler.handleCommandDecimal(nativeValue, channelGroup, number.get());
211 } else if (command instanceof QuantityType) {
212 QuantityType<?> quantityType = (QuantityType<?>) command;
213 DecimalType nativeValue = getConverter(channelUid).onCommandFromItem(quantityType);
214 subHandler.handleCommandDecimal(nativeValue, channelGroup, number.get());
215 } else if (command instanceof UpDownType) {
216 Channel channel = thing.getChannel(channelUid);
217 if (channel != null) {
218 Object invertConfig = channel.getConfiguration().get("invertUpDown");
219 boolean invertUpDown = invertConfig instanceof Boolean && (boolean) invertConfig;
220 subHandler.handleCommandUpDown((UpDownType) command, channelGroup, number.get(), invertUpDown);
222 } else if (command instanceof StopMoveType) {
223 subHandler.handleCommandStopMove((StopMoveType) command, channelGroup, number.get());
225 throw new LcnException("Unsupported command type");
227 } catch (IllegalArgumentException | NoSuchElementException | LcnException e) {
228 logger.warn("{}: Failed to handle command {}: {}", channelUid, command.getClass().getSimpleName(),
233 @NonNullByDefault({}) // getOrDefault()
234 private Converter getConverter(ChannelUID channelUid) {
235 return converters.getOrDefault(channelUid, Converters.IDENTITY);
239 * Invoked when a PCK messages arrives from the PCK gateway
241 * @param pck the message without line termination
243 public void handleStatusMessage(String pck) {
244 for (AbstractLcnModuleSubHandler handler : subHandlers.values()) {
245 if (handler.tryParse(pck)) {
250 metadataSubHandlers.forEach(h -> h.tryParse(pck));
253 private Optional<Integer> channelUidToChannelNumber(ChannelUID channelUid, LcnChannelGroup channelGroup)
254 throws LcnException {
256 int number = Integer.parseInt(channelUid.getIdWithoutGroup()) - 1;
258 if (!channelGroup.isValidId(number)) {
259 throw new LcnException("Out of range: " + number);
261 return Optional.of(number);
262 } catch (NumberFormatException e) {
263 return Optional.empty();
267 private PckGatewayHandler getPckGatewayHandler() throws LcnException {
268 Bridge bridge = getBridge();
269 if (bridge == null) {
270 throw new LcnException("No LCN-PCK gateway configured for this module");
273 PckGatewayHandler handler = (PckGatewayHandler) bridge.getHandler();
274 if (handler == null) {
275 throw new LcnException("Could not get PckGatewayHandler");
281 * Queues a PCK string for sending.
283 * @param command without the address part
284 * @throws LcnException when the module address is unknown
286 public void sendPck(String command) throws LcnException {
287 getPckGatewayHandler().queue(getCommandAddress(), true, command);
291 * Queues a PCK byte buffer for sending.
293 * @param command without the address part
294 * @throws LcnException when the module address is unknown
296 public void sendPck(byte[] command) throws LcnException {
297 getPckGatewayHandler().queue(getCommandAddress(), true, command);
301 * Gets the address, which shall be used when sending commands into the LCN bus. This can also be a group address.
303 * @return the address to send to
304 * @throws LcnException when the address is unknown
306 protected LcnAddr getCommandAddress() throws LcnException, LcnException {
307 LcnAddr localAddress = moduleAddress;
308 if (localAddress == null) {
309 throw new LcnException("Module address not set");
315 * Invoked when an update for this LCN module should be fired to openHAB.
317 * @param channelGroup the Channel to update
318 * @param channelId the ID within the Channel to update
319 * @param state the new state
321 public void updateChannel(LcnChannelGroup channelGroup, String channelId, State state) {
322 ChannelUID channelUid = createChannelUid(channelGroup, channelId);
323 Converter converter = converters.get(channelUid);
325 State convertedState = state;
326 if (converter != null) {
327 convertedState = converter.onStateUpdateFromHandler(state);
330 updateState(channelUid, convertedState);
334 * Updates the LCN module's serial number property.
336 * @param serialNumber the new serial number
338 public void updateSerialNumberProperty(String serialNumber) {
339 updateProperty(Thing.PROPERTY_SERIAL_NUMBER, serialNumber);
343 * Invoked when an trigger for this LCN module should be fired to openHAB.
345 * @param channelGroup the Channel to update
346 * @param channelId the ID within the Channel to update
347 * @param event the event used to trigger
349 public void triggerChannel(LcnChannelGroup channelGroup, String channelId, String event) {
350 triggerChannel(createChannelUid(channelGroup, channelId), event);
353 private ChannelUID createChannelUid(LcnChannelGroup channelGroup, String channelId) {
354 return new ChannelUID(thing.getUID(), channelGroup.name().toLowerCase() + "#" + channelId);
358 * Checks the LCN module address against the own.
360 * @param physicalSegmentId which is 0 if it is the local segment
362 * @return true, if the given address matches the own address
364 public boolean isMyAddress(String physicalSegmentId, String moduleId) {
366 return new LcnAddrMod(getPckGatewayHandler().toLogicalSegmentId(Integer.parseInt(physicalSegmentId)),
367 Integer.parseInt(moduleId)).equals(getStatusMessageAddress());
368 } catch (LcnException e) {
374 public Collection<Class<? extends ThingHandlerService>> getServices() {
375 return Collections.singleton(LcnModuleActions.class);
379 * Invoked when an Ack from this module has been received.
381 public void onAckRceived() {
383 Connection connection = getPckGatewayHandler().getConnection();
384 LcnAddrMod localModuleAddress = moduleAddress;
385 if (connection != null && localModuleAddress != null) {
386 getPckGatewayHandler().getModInfo(localModuleAddress).onAck(LcnBindingConstants.CODE_ACK, connection,
387 getPckGatewayHandler().getTimeoutMs(), System.nanoTime());
389 } catch (LcnException e) {
390 logger.warn("Connection or module address not set");
395 * Gets the address the handler shall react to, when a status message from this address is processed.
397 * @return the address for status messages
399 public LcnAddrMod getStatusMessageAddress() {
400 LcnAddrMod localmoduleAddress = moduleAddress;
401 if (localmoduleAddress != null) {
402 return localmoduleAddress;
404 return new LcnAddrMod(0, 0);
409 public void dispose() {
410 metadataSubHandlers.clear();