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.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, @Nullable AbstractLcnModuleSubHandler> subHandlers = new HashMap<>();
75 private final List<AbstractLcnModuleSubHandler> metadataSubHandlers = new ArrayList<>();
76 private final Map<ChannelUID, @Nullable 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 if (VALUE_CONVERTERS.containsKey(unitObject)) {
127 converters.put(channel.getUID(), VALUE_CONVERTERS.get(unitObject));
133 // Initialize inversion converter
134 if (Boolean.TRUE.equals(invertState) || Boolean.TRUE.equals(invertUpDown)) {
135 converters.put(channel.getUID(), INVERSION_CONVERTER);
140 // module is assumed as online, when the corresponding Bridge (PckGatewayHandler) is online.
141 updateStatus(ThingStatus.ONLINE);
142 } catch (LcnException e) {
143 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, e.getMessage());
148 * Triggers requesting the firmware version of the LCN module. The message also contains the serial number.
150 * @throws LcnException when the handler is not initialized
152 @SuppressWarnings("null")
153 protected void requestFirmwareVersionAndSerialNumberIfNotSet() throws LcnException {
154 String serialNumber = getThing().getProperties().get(Thing.PROPERTY_SERIAL_NUMBER);
155 if (serialNumber == null || serialNumber.isEmpty()) {
156 LcnAddrMod localModuleAddress = moduleAddress;
157 if (localModuleAddress != null) {
158 getPckGatewayHandler().getModInfo(localModuleAddress).requestFirmwareVersion();
164 public void handleCommand(ChannelUID channelUid, Command command) {
166 String groupId = channelUid.getGroupId();
168 if (!channelUid.isInGroup()) {
172 if (groupId == null) {
173 throw new LcnException("Group ID is null");
176 LcnChannelGroup channelGroup = LcnChannelGroup.valueOf(groupId.toUpperCase());
177 AbstractLcnModuleSubHandler subHandler = subHandlers.get(channelGroup);
179 if (subHandler == null) {
180 throw new LcnException("Sub Handler not found for: " + channelGroup);
183 Optional<Integer> number = channelUidToChannelNumber(channelUid, channelGroup);
185 if (command instanceof RefreshType) {
186 number.ifPresent(n -> subHandler.handleRefresh(channelGroup, n));
187 subHandler.handleRefresh(channelUid.getIdWithoutGroup());
188 } else if (command instanceof OnOffType) {
189 subHandler.handleCommandOnOff((OnOffType) command, channelGroup, number.get());
190 } else if (command instanceof DimmerOutputCommand) {
191 subHandler.handleCommandDimmerOutput((DimmerOutputCommand) command, number.get());
192 } else if (command instanceof PercentType && number.isPresent()) {
193 subHandler.handleCommandPercent((PercentType) command, channelGroup, number.get());
194 } else if (command instanceof HSBType) {
195 subHandler.handleCommandHsb((HSBType) command, channelUid.getIdWithoutGroup());
196 } else if (command instanceof PercentType) {
197 subHandler.handleCommandPercent((PercentType) command, channelGroup, channelUid.getIdWithoutGroup());
198 } else if (command instanceof StringType) {
199 subHandler.handleCommandString((StringType) command, number.get());
200 } else if (command instanceof DecimalType) {
201 DecimalType decimalType = (DecimalType) command;
202 DecimalType nativeValue = getConverter(channelUid).onCommandFromItem(decimalType.doubleValue());
203 subHandler.handleCommandDecimal(nativeValue, channelGroup, number.get());
204 } else if (command instanceof QuantityType) {
205 QuantityType<?> quantityType = (QuantityType<?>) command;
206 DecimalType nativeValue = getConverter(channelUid).onCommandFromItem(quantityType);
207 subHandler.handleCommandDecimal(nativeValue, channelGroup, number.get());
208 } else if (command instanceof UpDownType) {
209 Channel channel = thing.getChannel(channelUid);
210 if (channel != null) {
211 Object invertConfig = channel.getConfiguration().get("invertUpDown");
212 boolean invertUpDown = invertConfig instanceof Boolean && (boolean) invertConfig;
213 subHandler.handleCommandUpDown((UpDownType) command, channelGroup, number.get(), invertUpDown);
215 } else if (command instanceof StopMoveType) {
216 subHandler.handleCommandStopMove((StopMoveType) command, channelGroup, number.get());
218 throw new LcnException("Unsupported command type");
220 } catch (IllegalArgumentException | NoSuchElementException | LcnException e) {
221 logger.warn("{}: Failed to handle command {}: {}", channelUid, command.getClass().getSimpleName(),
226 @NonNullByDefault({}) // getOrDefault()
227 private Converter getConverter(ChannelUID channelUid) {
228 return converters.getOrDefault(channelUid, Converters.IDENTITY);
232 * Invoked when a PCK messages arrives from the PCK gateway
234 * @param pck the message without line termination
236 @SuppressWarnings("null")
237 public void handleStatusMessage(String pck) {
238 for (AbstractLcnModuleSubHandler handler : subHandlers.values()) {
239 if (handler.tryParse(pck)) {
244 metadataSubHandlers.forEach(h -> h.tryParse(pck));
247 private Optional<Integer> channelUidToChannelNumber(ChannelUID channelUid, LcnChannelGroup channelGroup)
248 throws LcnException {
250 int number = Integer.parseInt(channelUid.getIdWithoutGroup()) - 1;
252 if (!channelGroup.isValidId(number)) {
253 throw new LcnException("Out of range: " + number);
255 return Optional.of(number);
256 } catch (NumberFormatException e) {
257 return Optional.empty();
261 private PckGatewayHandler getPckGatewayHandler() throws LcnException {
262 Bridge bridge = getBridge();
263 if (bridge == null) {
264 throw new LcnException("No LCN-PCK gateway configured for this module");
267 PckGatewayHandler handler = (PckGatewayHandler) bridge.getHandler();
268 if (handler == null) {
269 throw new LcnException("Could not get PckGatewayHandler");
275 * Queues a PCK string for sending.
277 * @param command without the address part
278 * @throws LcnException when the module address is unknown
280 public void sendPck(String command) throws LcnException {
281 getPckGatewayHandler().queue(getCommandAddress(), true, command);
285 * Queues a PCK byte buffer for sending.
287 * @param command without the address part
288 * @throws LcnException when the module address is unknown
290 public void sendPck(byte[] command) throws LcnException {
291 getPckGatewayHandler().queue(getCommandAddress(), true, command);
295 * Gets the address, which shall be used when sending commands into the LCN bus. This can also be a group address.
297 * @return the address to send to
298 * @throws LcnException when the address is unknown
300 protected LcnAddr getCommandAddress() throws LcnException, LcnException {
301 LcnAddr localAddress = moduleAddress;
302 if (localAddress == null) {
303 throw new LcnException("Module address not set");
309 * Invoked when an update for this LCN module should be fired to openHAB.
311 * @param channelGroup the Channel to update
312 * @param channelId the ID within the Channel to update
313 * @param state the new state
315 public void updateChannel(LcnChannelGroup channelGroup, String channelId, State state) {
316 ChannelUID channelUid = createChannelUid(channelGroup, channelId);
317 Converter converter = converters.get(channelUid);
319 State convertedState = state;
320 if (converter != null) {
321 convertedState = converter.onStateUpdateFromHandler(state);
324 updateState(channelUid, convertedState);
328 * Updates the LCN module's serial number property.
330 * @param serialNumber the new serial number
332 public void updateSerialNumberProperty(String serialNumber) {
333 updateProperty(Thing.PROPERTY_SERIAL_NUMBER, serialNumber);
337 * Invoked when an trigger for this LCN module should be fired to openHAB.
339 * @param channelGroup the Channel to update
340 * @param channelId the ID within the Channel to update
341 * @param event the event used to trigger
343 public void triggerChannel(LcnChannelGroup channelGroup, String channelId, String event) {
344 triggerChannel(createChannelUid(channelGroup, channelId), event);
347 private ChannelUID createChannelUid(LcnChannelGroup channelGroup, String channelId) {
348 return new ChannelUID(thing.getUID(), channelGroup.name().toLowerCase() + "#" + channelId);
352 * Checks the LCN module address against the own.
354 * @param physicalSegmentId which is 0 if it is the local segment
356 * @return true, if the given address matches the own address
358 public boolean isMyAddress(String physicalSegmentId, String moduleId) {
360 return new LcnAddrMod(getPckGatewayHandler().toLogicalSegmentId(Integer.parseInt(physicalSegmentId)),
361 Integer.parseInt(moduleId)).equals(getStatusMessageAddress());
362 } catch (LcnException e) {
368 public Collection<Class<? extends ThingHandlerService>> getServices() {
369 return Collections.singleton(LcnModuleActions.class);
373 * Invoked when an Ack from this module has been received.
375 public void onAckRceived() {
377 Connection connection = getPckGatewayHandler().getConnection();
378 LcnAddrMod localModuleAddress = moduleAddress;
379 if (connection != null && localModuleAddress != null) {
380 getPckGatewayHandler().getModInfo(localModuleAddress).onAck(LcnBindingConstants.CODE_ACK, connection,
381 getPckGatewayHandler().getTimeoutMs(), System.nanoTime());
383 } catch (LcnException e) {
384 logger.warn("Connection or module address not set");
389 * Gets the address the handler shall react to, when a status message from this address is processed.
391 * @return the address for status messages
393 public LcnAddrMod getStatusMessageAddress() {
394 LcnAddrMod localmoduleAddress = moduleAddress;
395 if (localmoduleAddress != null) {
396 return localmoduleAddress;
398 return new LcnAddrMod(0, 0);
403 public void dispose() {
404 metadataSubHandlers.clear();