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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.Units.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.Units;
  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.ThingStatus;
  31 import org.openhab.core.thing.binding.builder.ChannelBuilder;
  32 import org.openhab.core.thing.binding.builder.ThingBuilder;
  33 import org.openhab.core.thing.type.ChannelTypeUID;
  34 import org.openhab.core.types.Command;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 /**
  39  * @author Florian Schmidt - Refactoring
  40  */
  41 @NonNullByDefault
  42 public class OpenSprinklerDeviceHandler extends OpenSprinklerBaseHandler {
  43     private final Logger logger = LoggerFactory.getLogger(OpenSprinklerDeviceHandler.class);
  44
  45     public OpenSprinklerDeviceHandler(Thing thing) {
  46         super(thing);
  47     }
  48
  49     @Override
  50     protected void updateChannel(ChannelUID channel) {
  51         try {
  52             switch (channel.getIdWithoutGroup()) {
  53                 case SENSOR_RAIN:
  54                     if (getApi().isRainDetected()) {
  55                         updateState(channel, OnOffType.ON);
  56                     } else {
  57                         updateState(channel, OnOffType.OFF);
  58                     }
  59                     break;
  60                 case SENSOR_WATERLEVEL:
  61                     updateState(channel, QuantityType.valueOf(getApi().waterLevel(), PERCENT));
  62                     break;
  63                 case SENSOR_CURRENT_DRAW:
  64                     updateState(channel,
  65                             new QuantityType<ElectricCurrent>(getApi().currentDraw(), MILLI(Units.AMPERE)));
  66                     break;
  67                 default:
  68                     logger.debug("Not updating unknown channel {}", channel);
  69             }
  70         } catch (CommunicationApiException | NoCurrentDrawSensorException e) {
  71             logger.debug("Could not update {}", channel, e);
  72         }
  73     }
  74
  75     @Override
  76     public void initialize() {
  77         ChannelUID currentDraw = new ChannelUID(thing.getUID(), "currentDraw");
  78         if (thing.getChannel(currentDraw) == null) {
  79             ThingBuilder thingBuilder = editThing();
  80             try {
  81                 getApi().currentDraw();
  82
  83                 Channel currentDrawChannel = ChannelBuilder.create(currentDraw, "Number:ElectricCurrent")
  84                         .withType(new ChannelTypeUID(BINDING_ID, SENSOR_CURRENT_DRAW)).withLabel("Current Draw")
  85                         .withDescription("Provides the current draw.").build();
  86                 thingBuilder.withChannel(currentDrawChannel);
  87
  88                 updateThing(thingBuilder.build());
  89             } catch (NoCurrentDrawSensorException e) {
  90                 if (thing.getChannel(currentDraw) != null) {
  91                     thingBuilder.withoutChannel(currentDraw);
  92                 }
  93                 updateThing(thingBuilder.build());
  94             } catch (CommunicationApiException e) {
  95                 logger.debug("Could not query current draw. Not removing channel as it could be temporary.", e);
  96             }
  97         }
  98         updateStatus(ThingStatus.ONLINE);
  99     }
 100
 101     @Override
 102     public void handleCommand(ChannelUID channelUID, Command command) {
 103         // nothing to do here
 104     }
 105 }