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   1 /**
   2  * Copyright (c) 2010-2022 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.smaenergymeter.internal.handler;
  14
  15 import static org.openhab.binding.smaenergymeter.internal.SMAEnergyMeterBindingConstants.*;
  16
  17 import java.io.IOException;
  18 import java.util.concurrent.ScheduledFuture;
  19 import java.util.concurrent.TimeUnit;
  20
  21 import org.openhab.binding.smaenergymeter.internal.configuration.EnergyMeterConfig;
  22 import org.openhab.core.thing.ChannelUID;
  23 import org.openhab.core.thing.Thing;
  24 import org.openhab.core.thing.ThingStatus;
  25 import org.openhab.core.thing.ThingStatusDetail;
  26 import org.openhab.core.thing.binding.BaseThingHandler;
  27 import org.openhab.core.types.Command;
  28 import org.openhab.core.types.RefreshType;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 /**
  33  * The {@link SMAEnergyMeterHandler} is responsible for handling commands, which are
  34  * sent to one of the channels.
  35  *
  36  * @author Osman Basha - Initial contribution
  37  */
  38 public class SMAEnergyMeterHandler extends BaseThingHandler {
  39
  40     private final Logger logger = LoggerFactory.getLogger(SMAEnergyMeterHandler.class);
  41     private EnergyMeter energyMeter;
  42     private ScheduledFuture<?> pollingJob;
  43
  44     public SMAEnergyMeterHandler(Thing thing) {
  45         super(thing);
  46     }
  47
  48     @Override
  49     public void handleCommand(ChannelUID channelUID, Command command) {
  50         if (command == RefreshType.REFRESH) {
  51             logger.debug("Refreshing {}", channelUID);
  52             updateData();
  53         } else {
  54             logger.warn("This binding is a read-only binding and cannot handle commands");
  55         }
  56     }
  57
  58     @Override
  59     public void initialize() {
  60         logger.debug("Initializing SMAEnergyMeter handler '{}'", getThing().getUID());
  61
  62         EnergyMeterConfig config = getConfigAs(EnergyMeterConfig.class);
  63
  64         int port = (config.getPort() == null) ? EnergyMeter.DEFAULT_MCAST_PORT : config.getPort();
  65         energyMeter = new EnergyMeter(config.getMcastGroup(), port);
  66         try {
  67             energyMeter.update();
  68
  69             updateProperty(Thing.PROPERTY_VENDOR, "SMA");
  70             updateProperty(Thing.PROPERTY_SERIAL_NUMBER, energyMeter.getSerialNumber());
  71             logger.debug("Found a SMA Energy Meter with S/N '{}'", energyMeter.getSerialNumber());
  72         } catch (IOException e) {
  73             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.OFFLINE.CONFIGURATION_ERROR, e.getMessage());
  74             return;
  75         }
  76
  77         int pollingPeriod = (config.getPollingPeriod() == null) ? 30 : config.getPollingPeriod();
  78         pollingJob = scheduler.scheduleWithFixedDelay(this::updateData, 0, pollingPeriod, TimeUnit.SECONDS);
  79         logger.debug("Polling job scheduled to run every {} sec. for '{}'", pollingPeriod, getThing().getUID());
  80
  81         updateStatus(ThingStatus.ONLINE);
  82     }
  83
  84     @Override
  85     public void dispose() {
  86         logger.debug("Disposing SMAEnergyMeter handler '{}'", getThing().getUID());
  87
  88         if (pollingJob != null) {
  89             pollingJob.cancel(true);
  90             pollingJob = null;
  91         }
  92         energyMeter = null;
  93     }
  94
  95     private synchronized void updateData() {
  96         logger.debug("Update SMAEnergyMeter data '{}'", getThing().getUID());
  97
  98         try {
  99             energyMeter.update();
 100
 101             updateState(CHANNEL_POWER_IN, energyMeter.getPowerIn());
 102             updateState(CHANNEL_POWER_OUT, energyMeter.getPowerOut());
 103             updateState(CHANNEL_ENERGY_IN, energyMeter.getEnergyIn());
 104             updateState(CHANNEL_ENERGY_OUT, energyMeter.getEnergyOut());
 105
 106             updateState(CHANNEL_POWER_IN_L1, energyMeter.getPowerInL1());
 107             updateState(CHANNEL_POWER_OUT_L1, energyMeter.getPowerOutL1());
 108             updateState(CHANNEL_ENERGY_IN_L1, energyMeter.getEnergyInL1());
 109             updateState(CHANNEL_ENERGY_OUT_L1, energyMeter.getEnergyOutL1());
 110
 111             updateState(CHANNEL_POWER_IN_L2, energyMeter.getPowerInL2());
 112             updateState(CHANNEL_POWER_OUT_L2, energyMeter.getPowerOutL2());
 113             updateState(CHANNEL_ENERGY_IN_L2, energyMeter.getEnergyInL2());
 114             updateState(CHANNEL_ENERGY_OUT_L2, energyMeter.getEnergyOutL2());
 115
 116             updateState(CHANNEL_POWER_IN_L3, energyMeter.getPowerInL3());
 117             updateState(CHANNEL_POWER_OUT_L3, energyMeter.getPowerOutL3());
 118             updateState(CHANNEL_ENERGY_IN_L3, energyMeter.getEnergyInL3());
 119             updateState(CHANNEL_ENERGY_OUT_L3, energyMeter.getEnergyOutL3());
 120
 121             if (getThing().getStatus().equals(ThingStatus.OFFLINE)) {
 122                 updateStatus(ThingStatus.ONLINE);
 123             }
 124         } catch (IOException e) {
 125             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.OFFLINE.COMMUNICATION_ERROR, e.getMessage());
 126         }
 127     }
 128 }