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   1 /**
   2  * Copyright (c) 2010-2023 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.concurrent.ScheduledFuture;
  18 import java.util.concurrent.TimeUnit;
  19
  20 import org.eclipse.jdt.annotation.NonNullByDefault;
  21 import org.eclipse.jdt.annotation.Nullable;
  22 import org.openhab.binding.solax.internal.connectivity.LocalHttpConnector;
  23 import org.openhab.binding.solax.internal.connectivity.rawdata.LocalConnectRawDataBean;
  24 import org.openhab.binding.solax.internal.model.InverterData;
  25 import org.openhab.core.library.types.DateTimeType;
  26 import org.openhab.core.library.types.QuantityType;
  27 import org.openhab.core.library.types.StringType;
  28 import org.openhab.core.library.unit.SIUnits;
  29 import org.openhab.core.library.unit.Units;
  30 import org.openhab.core.thing.ChannelUID;
  31 import org.openhab.core.thing.Thing;
  32 import org.openhab.core.thing.ThingStatus;
  33 import org.openhab.core.thing.ThingStatusDetail;
  34 import org.openhab.core.thing.binding.BaseThingHandler;
  35 import org.openhab.core.types.Command;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 import com.google.gson.JsonParseException;
  40
  41 /**
  42  * The {@link SolaxLocalAccessHandler} is responsible for handling commands, which are
  43  * sent to one of the channels.
  44  *
  45  * @author Konstantin Polihronov - Initial contribution
  46  */
  47 @NonNullByDefault
  48 public class SolaxLocalAccessHandler extends BaseThingHandler {
  49
  50     private final Logger logger = LoggerFactory.getLogger(SolaxLocalAccessHandler.class);
  51
  52     private static final int INITIAL_SCHEDULE_DELAY_SECONDS = 5;
  53
  54     private @NonNullByDefault({}) LocalHttpConnector localHttpConnector;
  55
  56     private @Nullable ScheduledFuture<?> schedule;
  57
  58     public SolaxLocalAccessHandler(Thing thing) {
  59         super(thing);
  60     }
  61
  62     @Override
  63     public void initialize() {
  64         updateStatus(ThingStatus.UNKNOWN);
  65
  66         SolaxConfiguration config = getConfigAs(SolaxConfiguration.class);
  67         localHttpConnector = new LocalHttpConnector(config.password, config.hostname);
  68         int refreshInterval = config.refreshInterval;
  69         TimeUnit timeUnit = TimeUnit.SECONDS;
  70
  71         logger.debug("Scheduling regular interval retrieval every {} {}", refreshInterval, timeUnit);
  72         schedule = scheduler.scheduleWithFixedDelay(this::retrieveData, INITIAL_SCHEDULE_DELAY_SECONDS, refreshInterval,
  73                 timeUnit);
  74     }
  75
  76     private void retrieveData() {
  77         try {
  78             String rawJsonData = localHttpConnector.retrieveData();
  79             logger.debug("Raw data retrieved = {}", rawJsonData);
  80
  81             if (rawJsonData != null && !rawJsonData.isEmpty()) {
  82                 updateData(rawJsonData);
  83             } else {
  84                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR,
  85                         SolaxBindingConstants.I18N_KEY_OFFLINE_COMMUNICATION_ERROR_JSON_CANNOT_BE_RETRIEVED);
  86             }
  87         } catch (IOException e) {
  88             logger.debug("Exception received while attempting to retrieve data via HTTP", e);
  89             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, e.getMessage());
  90         }
  91     }
  92
  93     private void updateData(String rawJsonData) {
  94         try {
  95             LocalConnectRawDataBean inverterParsedData = parseJson(rawJsonData);
  96             updateThing(inverterParsedData);
  97         } catch (JsonParseException e) {
  98             logger.debug("Unable to deserialize from JSON.", e);
  99             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, e.getMessage());
 100         }
 101     }
 102
 103     private void updateThing(LocalConnectRawDataBean inverterParsedData) {
 104         transferInverterDataToChannels(inverterParsedData);
 105
 106         if (getThing().getStatus() != ThingStatus.ONLINE) {
 107             updateStatus(ThingStatus.ONLINE);
 108         }
 109     }
 110
 111     private LocalConnectRawDataBean parseJson(String rawJsonData) {
 112         LocalConnectRawDataBean inverterParsedData = LocalConnectRawDataBean.fromJson(rawJsonData);
 113         logger.debug("Received a new inverter data object. Data = {}", inverterParsedData.toStringDetailed());
 114         return inverterParsedData;
 115     }
 116
 117     private void transferInverterDataToChannels(InverterData data) {
 118         updateProperty(Thing.PROPERTY_SERIAL_NUMBER, data.getWifiSerial());
 119         updateProperty(SolaxBindingConstants.PROPERTY_INVERTER_TYPE, data.getInverterType().name());
 120
 121         updateState(SolaxBindingConstants.INVERTER_OUTPUT_POWER,
 122                 new QuantityType<>(data.getInverterOutputPower(), Units.WATT));
 123         updateState(SolaxBindingConstants.INVERTER_OUTPUT_CURRENT,
 124                 new QuantityType<>(data.getInverterCurrent(), Units.AMPERE));
 125         updateState(SolaxBindingConstants.INVERTER_OUTPUT_VOLTAGE,
 126                 new QuantityType<>(data.getInverterVoltage(), Units.VOLT));
 127         updateState(SolaxBindingConstants.INVERTER_OUTPUT_FREQUENCY,
 128                 new QuantityType<>(data.getInverterFrequency(), Units.HERTZ));
 129
 130         updateState(SolaxBindingConstants.INVERTER_PV1_POWER, new QuantityType<>(data.getPV1Power(), Units.WATT));
 131         updateState(SolaxBindingConstants.INVERTER_PV1_CURRENT, new QuantityType<>(data.getPV1Current(), Units.AMPERE));
 132         updateState(SolaxBindingConstants.INVERTER_PV1_VOLTAGE, new QuantityType<>(data.getPV1Voltage(), Units.VOLT));
 133
 134         updateState(SolaxBindingConstants.INVERTER_PV2_POWER, new QuantityType<>(data.getPV2Power(), Units.WATT));
 135         updateState(SolaxBindingConstants.INVERTER_PV2_CURRENT, new QuantityType<>(data.getPV2Current(), Units.AMPERE));
 136         updateState(SolaxBindingConstants.INVERTER_PV2_VOLTAGE, new QuantityType<>(data.getPV2Voltage(), Units.VOLT));
 137
 138         updateState(SolaxBindingConstants.INVERTER_PV_TOTAL_POWER,
 139                 new QuantityType<>(data.getPVTotalPower(), Units.WATT));
 140         updateState(SolaxBindingConstants.INVERTER_PV_TOTAL_CURRENT,
 141                 new QuantityType<>(data.getPVTotalCurrent(), Units.AMPERE));
 142
 143         updateState(SolaxBindingConstants.BATTERY_POWER, new QuantityType<>(data.getBatteryPower(), Units.WATT));
 144         updateState(SolaxBindingConstants.BATTERY_CURRENT, new QuantityType<>(data.getBatteryCurrent(), Units.AMPERE));
 145         updateState(SolaxBindingConstants.BATTERY_VOLTAGE, new QuantityType<>(data.getBatteryVoltage(), Units.VOLT));
 146         updateState(SolaxBindingConstants.BATTERY_TEMPERATURE,
 147                 new QuantityType<>(data.getBatteryTemperature(), SIUnits.CELSIUS));
 148         updateState(SolaxBindingConstants.BATTERY_STATE_OF_CHARGE,
 149                 new QuantityType<>(data.getBatterySoC(), Units.PERCENT));
 150
 151         updateState(SolaxBindingConstants.FEED_IN_POWER, new QuantityType<>(data.getFeedInPower(), Units.WATT));
 152
 153         updateState(SolaxBindingConstants.TIMESTAMP, new DateTimeType(ZonedDateTime.now()));
 154         updateState(SolaxBindingConstants.RAW_DATA, new StringType(data.getRawData()));
 155     }
 156
 157     @Override
 158     public void handleCommand(ChannelUID channelUID, Command command) {
 159         // Nothing to do here as of now. Maybe implement a REFRESH command in the future.
 160     }
 161
 162     @Override
 163     public void dispose() {
 164         super.dispose();
 165         ScheduledFuture<?> schedule = this.schedule;
 166         if (schedule != null) {
 167             schedule.cancel(true);
 168             this.schedule = null;
 169         }
 170     }
 171 }