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   1 /**
   2  * Copyright (c) 2010-2024 Contributors to the openHAB project
   3  *
   4  * See the NOTICE file(s) distributed with this work for additional
   5  * information.
   6  *
   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
  10  *
  11  * SPDX-License-Identifier: EPL-2.0
  12  */
  13 package org.openhab.binding.solax.internal;
  14
  15 import java.io.IOException;
  16 import java.time.ZonedDateTime;
  17 import java.util.HashSet;
  18 import java.util.List;
  19 import java.util.Set;
  20 import java.util.concurrent.ScheduledFuture;
  21 import java.util.concurrent.TimeUnit;
  22 import java.util.concurrent.locks.ReentrantLock;
  23
  24 import javax.measure.Quantity;
  25 import javax.measure.Unit;
  26
  27 import org.eclipse.jdt.annotation.NonNullByDefault;
  28 import org.eclipse.jdt.annotation.Nullable;
  29 import org.openhab.binding.solax.internal.connectivity.LocalHttpConnector;
  30 import org.openhab.binding.solax.internal.connectivity.rawdata.LocalConnectRawDataBean;
  31 import org.openhab.binding.solax.internal.model.InverterData;
  32 import org.openhab.binding.solax.internal.model.InverterType;
  33 import org.openhab.binding.solax.internal.model.parsers.RawDataParser;
  34 import org.openhab.core.library.types.DateTimeType;
  35 import org.openhab.core.library.types.QuantityType;
  36 import org.openhab.core.library.types.StringType;
  37 import org.openhab.core.library.unit.SIUnits;
  38 import org.openhab.core.library.unit.Units;
  39 import org.openhab.core.thing.Channel;
  40 import org.openhab.core.thing.ChannelUID;
  41 import org.openhab.core.thing.Thing;
  42 import org.openhab.core.thing.ThingStatus;
  43 import org.openhab.core.thing.ThingStatusDetail;
  44 import org.openhab.core.thing.binding.BaseThingHandler;
  45 import org.openhab.core.types.Command;
  46 import org.openhab.core.types.RefreshType;
  47 import org.openhab.core.types.UnDefType;
  48 import org.slf4j.Logger;
  49 import org.slf4j.LoggerFactory;
  50
  51 import com.google.gson.JsonParseException;
  52
  53 /**
  54  * The {@link SolaxLocalAccessHandler} is responsible for handling commands, which are
  55  * sent to one of the channels.
  56  *
  57  * @author Konstantin Polihronov - Initial contribution
  58  */
  59 @NonNullByDefault
  60 public class SolaxLocalAccessHandler extends BaseThingHandler {
  61
  62     private final Logger logger = LoggerFactory.getLogger(SolaxLocalAccessHandler.class);
  63
  64     private static final int INITIAL_SCHEDULE_DELAY_SECONDS = 5;
  65
  66     private @NonNullByDefault({}) LocalHttpConnector localHttpConnector;
  67
  68     private @Nullable ScheduledFuture<?> schedule;
  69
  70     private boolean alreadyRemovedUnsupportedChannels;
  71
  72     private final Set<String> unsupportedExistingChannels = new HashSet<String>();
  73
  74     private final ReentrantLock retrieveDataCallLock = new ReentrantLock();
  75
  76     public SolaxLocalAccessHandler(Thing thing) {
  77         super(thing);
  78     }
  79
  80     @Override
  81     public void initialize() {
  82         updateStatus(ThingStatus.UNKNOWN);
  83
  84         SolaxConfiguration config = getConfigAs(SolaxConfiguration.class);
  85         localHttpConnector = new LocalHttpConnector(config.password, config.hostname);
  86         int refreshInterval = config.refreshInterval;
  87         TimeUnit timeUnit = TimeUnit.SECONDS;
  88
  89         logger.debug("Scheduling regular interval retrieval every {} {}", refreshInterval, timeUnit);
  90         schedule = scheduler.scheduleWithFixedDelay(this::retrieveData, INITIAL_SCHEDULE_DELAY_SECONDS, refreshInterval,
  91                 timeUnit);
  92     }
  93
  94     private void retrieveData() {
  95         if (retrieveDataCallLock.tryLock()) {
  96             try {
  97                 String rawJsonData = localHttpConnector.retrieveData();
  98                 logger.debug("Raw data retrieved = {}", rawJsonData);
  99
 100                 if (rawJsonData != null && !rawJsonData.isEmpty()) {
 101                     updateFromData(rawJsonData);
 102                 } else {
 103                     updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR,
 104                             SolaxBindingConstants.I18N_KEY_OFFLINE_COMMUNICATION_ERROR_JSON_CANNOT_BE_RETRIEVED);
 105                 }
 106             } catch (IOException e) {
 107                 logger.debug("Exception received while attempting to retrieve data via HTTP", e);
 108                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, e.getMessage());
 109             } finally {
 110                 retrieveDataCallLock.unlock();
 111             }
 112         } else {
 113             logger.debug("Unable to retrieve data because a request is already in progress.");
 114         }
 115     }
 116
 117     private void updateFromData(String rawJsonData) {
 118         try {
 119             LocalConnectRawDataBean rawDataBean = parseJson(rawJsonData);
 120             InverterType inverterType = calculateInverterType(rawDataBean);
 121             RawDataParser parser = inverterType.getParser();
 122             if (parser != null) {
 123                 if (!alreadyRemovedUnsupportedChannels) {
 124                     removeUnsupportedChannels(inverterType.getSupportedChannels());
 125                     alreadyRemovedUnsupportedChannels = true;
 126                 }
 127
 128                 InverterData genericInverterData = parser.getData(rawDataBean);
 129                 updateChannels(parser, genericInverterData);
 130                 updateProperties(genericInverterData);
 131
 132                 if (getThing().getStatus() != ThingStatus.ONLINE) {
 133                     updateStatus(ThingStatus.ONLINE);
 134                 }
 135             } else {
 136                 cancelSchedule();
 137                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 138                         "@text/offline.configuration-error.parser-not-implemented [\"" + inverterType.name() + "\"]");
 139             }
 140         } catch (JsonParseException e) {
 141             logger.debug("Unable to deserialize from JSON.", e);
 142             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, e.getMessage());
 143         }
 144     }
 145
 146     private LocalConnectRawDataBean parseJson(String rawJsonData) {
 147         LocalConnectRawDataBean inverterParsedData = LocalConnectRawDataBean.fromJson(rawJsonData);
 148         logger.debug("Received a new inverter JSON object. Data = {}", inverterParsedData.toString());
 149         return inverterParsedData;
 150     }
 151
 152     private InverterType calculateInverterType(LocalConnectRawDataBean rawDataBean) {
 153         int type = rawDataBean.getType();
 154         return InverterType.fromIndex(type);
 155     }
 156
 157     private void updateProperties(InverterData genericInverterData) {
 158         updateProperty(Thing.PROPERTY_SERIAL_NUMBER, genericInverterData.getWifiSerial());
 159         updateProperty(SolaxBindingConstants.PROPERTY_INVERTER_TYPE, genericInverterData.getInverterType().name());
 160     }
 161
 162     private void updateChannels(RawDataParser parser, InverterData inverterData) {
 163         updateState(SolaxBindingConstants.CHANNEL_RAW_DATA, new StringType(inverterData.getRawData()));
 164
 165         Set<String> supportedChannels = parser.getSupportedChannels();
 166         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_PV1_POWER, inverterData.getPV1Power(), Units.WATT,
 167                 supportedChannels);
 168         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_PV1_CURRENT, inverterData.getPV1Current(), Units.AMPERE,
 169                 supportedChannels);
 170         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_PV1_VOLTAGE, inverterData.getPV1Voltage(), Units.VOLT,
 171                 supportedChannels);
 172
 173         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_PV2_POWER, inverterData.getPV2Power(), Units.WATT,
 174                 supportedChannels);
 175         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_PV2_CURRENT, inverterData.getPV2Current(), Units.AMPERE,
 176                 supportedChannels);
 177         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_PV2_VOLTAGE, inverterData.getPV2Voltage(), Units.VOLT,
 178                 supportedChannels);
 179
 180         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_PV_TOTAL_POWER, inverterData.getPVTotalPower(), Units.WATT,
 181                 supportedChannels);
 182         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_PV_TOTAL_CURRENT, inverterData.getPVTotalCurrent(),
 183                 Units.AMPERE, supportedChannels);
 184
 185         updateChannel(SolaxBindingConstants.CHANNEL_BATTERY_POWER, inverterData.getBatteryPower(), Units.WATT,
 186                 supportedChannels);
 187         updateChannel(SolaxBindingConstants.CHANNEL_BATTERY_CURRENT, inverterData.getBatteryCurrent(), Units.AMPERE,
 188                 supportedChannels);
 189         updateChannel(SolaxBindingConstants.CHANNEL_BATTERY_VOLTAGE, inverterData.getBatteryVoltage(), Units.VOLT,
 190                 supportedChannels);
 191         updateChannel(SolaxBindingConstants.CHANNEL_BATTERY_TEMPERATURE, inverterData.getBatteryTemperature(),
 192                 SIUnits.CELSIUS, supportedChannels);
 193         updateChannel(SolaxBindingConstants.CHANNEL_BATTERY_STATE_OF_CHARGE, inverterData.getBatteryLevel(),
 194                 Units.PERCENT, supportedChannels);
 195         updateChannel(SolaxBindingConstants.CHANNEL_FEED_IN_POWER, inverterData.getFeedInPower(), Units.WATT,
 196                 supportedChannels);
 197         updateChannel(SolaxBindingConstants.CHANNEL_POWER_USAGE, inverterData.getPowerUsage(), Units.WATT,
 198                 supportedChannels);
 199
 200         // Totals
 201         updateChannel(SolaxBindingConstants.CHANNEL_TOTAL_ENERGY, inverterData.getTotalEnergy(), Units.KILOWATT_HOUR,
 202                 supportedChannels);
 203         updateChannel(SolaxBindingConstants.CHANNEL_TOTAL_BATTERY_DISCHARGE_ENERGY,
 204                 inverterData.getTotalBatteryDischargeEnergy(), Units.KILOWATT_HOUR, supportedChannels);
 205         updateChannel(SolaxBindingConstants.CHANNEL_TOTAL_BATTERY_CHARGE_ENERGY,
 206                 inverterData.getTotalBatteryChargeEnergy(), Units.KILOWATT_HOUR, supportedChannels);
 207         updateChannel(SolaxBindingConstants.CHANNEL_TOTAL_PV_ENERGY, inverterData.getTotalPVEnergy(),
 208                 Units.KILOWATT_HOUR, supportedChannels);
 209         updateChannel(SolaxBindingConstants.CHANNEL_TOTAL_FEED_IN_ENERGY, inverterData.getTotalFeedInEnergy(),
 210                 Units.KILOWATT_HOUR, supportedChannels);
 211         updateChannel(SolaxBindingConstants.CHANNEL_TOTAL_CONSUMPTION, inverterData.getTotalConsumption(),
 212                 Units.KILOWATT_HOUR, supportedChannels);
 213
 214         // Today's
 215         updateChannel(SolaxBindingConstants.CHANNEL_TODAY_ENERGY, inverterData.getTodayEnergy(), Units.KILOWATT_HOUR,
 216                 supportedChannels);
 217         updateChannel(SolaxBindingConstants.CHANNEL_TODAY_BATTERY_DISCHARGE_ENERGY,
 218                 inverterData.getTodayBatteryDischargeEnergy(), Units.KILOWATT_HOUR, supportedChannels);
 219         updateChannel(SolaxBindingConstants.CHANNEL_TODAY_BATTERY_CHARGE_ENERGY,
 220                 inverterData.getTodayBatteryChargeEnergy(), Units.KILOWATT_HOUR, supportedChannels);
 221         updateChannel(SolaxBindingConstants.CHANNEL_TODAY_FEED_IN_ENERGY, inverterData.getTodayFeedInEnergy(),
 222                 Units.KILOWATT_HOUR, supportedChannels);
 223         updateChannel(SolaxBindingConstants.CHANNEL_TODAY_CONSUMPTION, inverterData.getTodayConsumption(),
 224                 Units.KILOWATT_HOUR, supportedChannels);
 225
 226         // Single phase specific channels
 227         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_OUTPUT_POWER, inverterData.getInverterOutputPower(),
 228                 Units.WATT, supportedChannels);
 229         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_OUTPUT_CURRENT, inverterData.getInverterCurrent(),
 230                 Units.AMPERE, supportedChannels);
 231         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_OUTPUT_VOLTAGE, inverterData.getInverterVoltage(),
 232                 Units.VOLT, supportedChannels);
 233         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_OUTPUT_FREQUENCY, inverterData.getInverterFrequency(),
 234                 Units.HERTZ, supportedChannels);
 235
 236         // Three phase specific channels
 237         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_OUTPUT_POWER_PHASE1, inverterData.getOutputPowerPhase1(),
 238                 Units.WATT, supportedChannels);
 239         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_OUTPUT_POWER_PHASE2, inverterData.getOutputPowerPhase2(),
 240                 Units.WATT, supportedChannels);
 241         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_OUTPUT_POWER_PHASE3, inverterData.getOutputPowerPhase3(),
 242                 Units.WATT, supportedChannels);
 243         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_TOTAL_OUTPUT_POWER, inverterData.getTotalOutputPower(),
 244                 Units.WATT, supportedChannels);
 245
 246         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_OUTPUT_CURRENT_PHASE1, inverterData.getCurrentPhase1(),
 247                 Units.AMPERE, supportedChannels);
 248         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_OUTPUT_CURRENT_PHASE2, inverterData.getCurrentPhase2(),
 249                 Units.AMPERE, supportedChannels);
 250         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_OUTPUT_CURRENT_PHASE3, inverterData.getCurrentPhase3(),
 251                 Units.AMPERE, supportedChannels);
 252
 253         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_OUTPUT_VOLTAGE_PHASE1, inverterData.getVoltagePhase1(),
 254                 Units.VOLT, supportedChannels);
 255         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_OUTPUT_VOLTAGE_PHASE2, inverterData.getVoltagePhase2(),
 256                 Units.VOLT, supportedChannels);
 257         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_OUTPUT_VOLTAGE_PHASE3, inverterData.getVoltagePhase3(),
 258                 Units.VOLT, supportedChannels);
 259
 260         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_OUTPUT_FREQUENCY_PHASE1, inverterData.getFrequencyPhase1(),
 261                 Units.HERTZ, supportedChannels);
 262         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_OUTPUT_FREQUENCY_PHASE2, inverterData.getFrequencyPhase2(),
 263                 Units.HERTZ, supportedChannels);
 264         updateChannel(SolaxBindingConstants.CHANNEL_INVERTER_OUTPUT_FREQUENCY_PHASE3, inverterData.getFrequencyPhase3(),
 265                 Units.HERTZ, supportedChannels);
 266
 267         // Binding provided data
 268         updateState(SolaxBindingConstants.CHANNEL_TIMESTAMP, new DateTimeType(ZonedDateTime.now()));
 269     }
 270
 271     private void removeUnsupportedChannels(Set<String> supportedChannels) {
 272         if (supportedChannels.isEmpty()) {
 273             return;
 274         }
 275         List<Channel> channels = getThing().getChannels();
 276         List<Channel> channelsToRemove = channels.stream()
 277                 .filter(channel -> !supportedChannels.contains(channel.getUID().getId())).toList();
 278
 279         if (!channelsToRemove.isEmpty()) {
 280             if (logger.isDebugEnabled()) {
 281                 logRemovedChannels(channelsToRemove);
 282             }
 283             updateThing(editThing().withoutChannels(channelsToRemove).build());
 284         }
 285     }
 286
 287     private void logRemovedChannels(List<Channel> channelsToRemove) {
 288         List<String> channelsToRemoveForLog = channelsToRemove.stream().map(channel -> channel.getUID().getId())
 289                 .toList();
 290         logger.debug("Detected unsupported channels for the current inverter. Channels to be removed: {}",
 291                 channelsToRemoveForLog);
 292     }
 293
 294     @Override
 295     public void handleCommand(ChannelUID channelUID, Command command) {
 296         if (command instanceof RefreshType) {
 297             scheduler.execute(this::retrieveData);
 298         } else {
 299             logger.debug("Binding {} only supports refresh command", SolaxBindingConstants.BINDING_ID);
 300         }
 301     }
 302
 303     @Override
 304     public void dispose() {
 305         super.dispose();
 306         cancelSchedule();
 307     }
 308
 309     private void cancelSchedule() {
 310         ScheduledFuture<?> schedule = this.schedule;
 311         if (schedule != null) {
 312             schedule.cancel(true);
 313             this.schedule = null;
 314         }
 315     }
 316
 317     private <T extends Quantity<T>> void updateChannel(String channelID, double value, Unit<T> unit,
 318             Set<String> supportedChannels) {
 319         if (supportedChannels.contains(channelID)) {
 320             if (value > Short.MIN_VALUE) {
 321                 updateState(channelID, new QuantityType<>(value, unit));
 322             } else if (!unsupportedExistingChannels.contains(channelID)) {
 323                 updateState(channelID, UnDefType.UNDEF);
 324                 unsupportedExistingChannels.add(channelID);
 325                 logger.warn(
 326                         "Channel {} is marked as supported, but its value is out of the defined range. Value = {}. This is unexpected behaviour. Please file a bug.",
 327                         channelID, value);
 328             }
 329         }
 330     }
 331 }