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   1 /**
   2  * Copyright (c) 2010-2020 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.omnikinverter.internal.handler;
  14
  15 import java.io.IOException;
  16 import java.net.ConnectException;
  17 import java.net.NoRouteToHostException;
  18 import java.net.UnknownHostException;
  19 import java.util.concurrent.TimeUnit;
  20
  21 import javax.measure.quantity.Power;
  22
  23 import org.eclipse.jdt.annotation.NonNullByDefault;
  24 import org.eclipse.jdt.annotation.Nullable;
  25 import org.openhab.binding.omnikinverter.internal.OmnikInverter;
  26 import org.openhab.binding.omnikinverter.internal.OmnikInverterBindingConstants;
  27 import org.openhab.binding.omnikinverter.internal.OmnikInverterConfiguration;
  28 import org.openhab.binding.omnikinverter.internal.OmnikInverterMessage;
  29 import org.openhab.core.library.types.QuantityType;
  30 import org.openhab.core.library.unit.SmartHomeUnits;
  31 import org.openhab.core.thing.ChannelUID;
  32 import org.openhab.core.thing.Thing;
  33 import org.openhab.core.thing.ThingStatus;
  34 import org.openhab.core.thing.ThingStatusDetail;
  35 import org.openhab.core.thing.binding.BaseThingHandler;
  36 import org.openhab.core.types.Command;
  37 import org.openhab.core.types.RefreshType;
  38 import org.slf4j.Logger;
  39 import org.slf4j.LoggerFactory;
  40
  41 /**
  42  * The {@link OmnikInverterHandler} is responsible for handling commands, which are
  43  * sent to one of the channels.
  44  *
  45  * @author Hans van den Bogert - Initial contribution
  46  */
  47 @NonNullByDefault
  48 public class OmnikInverterHandler extends BaseThingHandler {
  49     private @Nullable OmnikInverter inverter;
  50
  51     private final Logger logger = LoggerFactory.getLogger(OmnikInverterHandler.class);
  52
  53     public OmnikInverterHandler(Thing thing) {
  54         super(thing);
  55     }
  56
  57     @Override
  58     public void handleCommand(ChannelUID channelUID, Command command) {
  59         if (OmnikInverterBindingConstants.CHANNEL_POWER.equals(channelUID.getId())) {
  60             if (command instanceof RefreshType) {
  61                 updateData();
  62             }
  63         }
  64     }
  65
  66     @Override
  67     public void initialize() {
  68         OmnikInverterConfiguration config = getConfigAs(OmnikInverterConfiguration.class);
  69
  70         try {
  71             inverter = new OmnikInverter(config.hostname, config.port, config.serial);
  72             scheduler.scheduleWithFixedDelay(this::updateData, 0, 10, TimeUnit.SECONDS);
  73         } catch (IOException e) {
  74             logger.debug("Could not instantiate OmnikInverter object: {}", e.getMessage());
  75             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.HANDLER_INITIALIZING_ERROR,
  76                     "Failed to initialize: " + e.getMessage());
  77         }
  78     }
  79
  80     private void updateData() {
  81         try {
  82             if (inverter != null) {
  83                 OmnikInverterMessage message = inverter.pullCurrentStats();
  84
  85                 updateStatus(ThingStatus.ONLINE);
  86
  87                 QuantityType<Power> powerQuantity = new QuantityType<>(message.getPower(), SmartHomeUnits.WATT);
  88                 updateState(OmnikInverterBindingConstants.CHANNEL_POWER, powerQuantity);
  89
  90                 updateState(OmnikInverterBindingConstants.CHANNEL_ENERGY_TODAY,
  91                         new QuantityType<>(message.getEnergyToday(), SmartHomeUnits.KILOWATT_HOUR));
  92
  93                 updateState(OmnikInverterBindingConstants.CHANNEL_ENERGY_TOTAL,
  94                         new QuantityType<>(message.getTotalEnergy(), SmartHomeUnits.KILOWATT_HOUR));
  95             }
  96         } catch (UnknownHostException | NoRouteToHostException | ConnectException e) {
  97             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, e.getMessage());
  98         } catch (IOException e) {
  99             logger.debug("Unknown exception when pulling data from the inverter: {}", e.getMessage());
 100             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.NONE, "Unknown error: " + e.getMessage());
 101         }
 102     }
 103 }