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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.opensprinkler.internal.handler;
  14
  15 import static org.openhab.binding.opensprinkler.internal.OpenSprinklerBindingConstants.*;
  16 import static org.openhab.core.library.unit.MetricPrefix.MILLI;
  17 import static org.openhab.core.library.unit.SmartHomeUnits.PERCENT;
  18
  19 import javax.measure.quantity.ElectricCurrent;
  20
  21 import org.eclipse.jdt.annotation.NonNullByDefault;
  22 import org.openhab.binding.opensprinkler.internal.api.exception.CommunicationApiException;
  23 import org.openhab.binding.opensprinkler.internal.model.NoCurrentDrawSensorException;
  24 import org.openhab.core.library.types.OnOffType;
  25 import org.openhab.core.library.types.QuantityType;
  26 import org.openhab.core.library.unit.SmartHomeUnits;
  27 import org.openhab.core.thing.Channel;
  28 import org.openhab.core.thing.ChannelUID;
  29 import org.openhab.core.thing.Thing;
  30 import org.openhab.core.thing.binding.builder.ChannelBuilder;
  31 import org.openhab.core.thing.binding.builder.ThingBuilder;
  32 import org.openhab.core.thing.type.ChannelTypeUID;
  33 import org.openhab.core.types.Command;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 /**
  38  * @author Florian Schmidt - Refactoring
  39  */
  40 @NonNullByDefault
  41 public class OpenSprinklerDeviceHandler extends OpenSprinklerBaseHandler {
  42     private final Logger logger = LoggerFactory.getLogger(OpenSprinklerDeviceHandler.class);
  43
  44     public OpenSprinklerDeviceHandler(Thing thing) {
  45         super(thing);
  46     }
  47
  48     @Override
  49     protected void updateChannel(ChannelUID channel) {
  50         try {
  51             switch (channel.getIdWithoutGroup()) {
  52                 case SENSOR_RAIN:
  53                     if (getApi().isRainDetected()) {
  54                         updateState(channel, OnOffType.ON);
  55                     } else {
  56                         updateState(channel, OnOffType.OFF);
  57                     }
  58                     break;
  59                 case SENSOR_WATERLEVEL:
  60                     updateState(channel, QuantityType.valueOf(getApi().waterLevel(), PERCENT));
  61                     break;
  62                 case SENSOR_CURRENT_DRAW:
  63                     updateState(channel,
  64                             new QuantityType<ElectricCurrent>(getApi().currentDraw(), MILLI(SmartHomeUnits.AMPERE)));
  65                     break;
  66                 default:
  67                     logger.debug("Not updating unknown channel {}", channel);
  68             }
  69         } catch (CommunicationApiException | NoCurrentDrawSensorException e) {
  70             logger.debug("Could not update {}", channel, e);
  71         }
  72     }
  73
  74     @Override
  75     public void initialize() {
  76         ChannelUID currentDraw = new ChannelUID(thing.getUID(), "currentDraw");
  77         if (thing.getChannel(currentDraw) == null) {
  78             ThingBuilder thingBuilder = editThing();
  79             try {
  80                 getApi().currentDraw();
  81
  82                 Channel currentDrawChannel = ChannelBuilder.create(currentDraw, "Number:ElectricCurrent")
  83                         .withType(new ChannelTypeUID(BINDING_ID, SENSOR_CURRENT_DRAW)).withLabel("Current Draw")
  84                         .withDescription("Provides the current draw.").build();
  85                 thingBuilder.withChannel(currentDrawChannel);
  86
  87                 updateThing(thingBuilder.build());
  88             } catch (NoCurrentDrawSensorException e) {
  89                 if (thing.getChannel(currentDraw) != null) {
  90                     thingBuilder.withoutChannel(currentDraw);
  91                 }
  92                 updateThing(thingBuilder.build());
  93             } catch (CommunicationApiException e) {
  94                 logger.debug("Could not query current draw. Not removing channel as it could be temporary.", e);
  95             }
  96         }
  97         super.initialize();
  98     }
  99
 100     @Override
 101     public void handleCommand(ChannelUID channelUID, Command command) {
 102         // nothing to do here
 103     }
 104 }