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   1 /**
   2  * Copyright (c) 2010-2021 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.boschshc.internal.devices.inwallswitch;
  14
  15 import static org.openhab.binding.boschshc.internal.devices.BoschSHCBindingConstants.*;
  16
  17 import java.util.List;
  18
  19 import javax.measure.quantity.Energy;
  20 import javax.measure.quantity.Power;
  21
  22 import org.eclipse.jdt.annotation.NonNullByDefault;
  23 import org.openhab.binding.boschshc.internal.devices.BoschSHCHandler;
  24 import org.openhab.binding.boschshc.internal.devices.inwallswitch.dto.PowerMeterState;
  25 import org.openhab.binding.boschshc.internal.exceptions.BoschSHCException;
  26 import org.openhab.binding.boschshc.internal.services.powerswitch.PowerSwitchService;
  27 import org.openhab.binding.boschshc.internal.services.powerswitch.PowerSwitchState;
  28 import org.openhab.binding.boschshc.internal.services.powerswitch.dto.PowerSwitchServiceState;
  29 import org.openhab.core.library.types.OnOffType;
  30 import org.openhab.core.library.types.QuantityType;
  31 import org.openhab.core.library.unit.Units;
  32 import org.openhab.core.thing.ChannelUID;
  33 import org.openhab.core.thing.Thing;
  34 import org.openhab.core.types.Command;
  35 import org.openhab.core.types.RefreshType;
  36 import org.openhab.core.types.State;
  37
  38 import com.google.gson.JsonElement;
  39
  40 /**
  41  * Represents Bosch in-wall switches.
  42  *
  43  * @author Stefan Kästle - Initial contribution
  44  */
  45 @NonNullByDefault
  46 public class BoschInWallSwitchHandler extends BoschSHCHandler {
  47
  48     private final PowerSwitchService powerSwitchService;
  49
  50     public BoschInWallSwitchHandler(Thing thing) {
  51         super(thing);
  52         this.powerSwitchService = new PowerSwitchService();
  53     }
  54
  55     @Override
  56     protected void initializeServices() throws BoschSHCException {
  57         super.initializeServices();
  58
  59         this.registerService(this.powerSwitchService, this::updateChannels, List.of(CHANNEL_POWER_SWITCH));
  60     }
  61
  62     @Override
  63     public void handleCommand(ChannelUID channelUID, Command command) {
  64         super.handleCommand(channelUID, command);
  65
  66         logger.debug("Handle command for: {} - {}", channelUID.getThingUID(), command);
  67
  68         if (command instanceof RefreshType) {
  69             switch (channelUID.getId()) {
  70                 case CHANNEL_POWER_CONSUMPTION: {
  71                     PowerMeterState state = this.getState("PowerMeter", PowerMeterState.class);
  72                     if (state != null) {
  73                         updatePowerMeterState(state);
  74                     }
  75                     break;
  76                 }
  77                 case CHANNEL_ENERGY_CONSUMPTION:
  78                     // Nothing to do here, since the same update is received from POWER_CONSUMPTION
  79                     break;
  80                 default:
  81                     logger.warn("Received refresh request for unsupported channel: {}", channelUID);
  82             }
  83         } else {
  84             switch (channelUID.getId()) {
  85                 case CHANNEL_POWER_SWITCH:
  86                     if (command instanceof OnOffType) {
  87                         updatePowerSwitchState((OnOffType) command);
  88                     }
  89                     break;
  90             }
  91         }
  92     }
  93
  94     void updatePowerMeterState(PowerMeterState state) {
  95         logger.debug("Parsed power meter state of {}: energy {} - power {}", this.getBoschID(), state.energyConsumption,
  96                 state.energyConsumption);
  97
  98         updateState(CHANNEL_POWER_CONSUMPTION, new QuantityType<Power>(state.powerConsumption, Units.WATT));
  99         updateState(CHANNEL_ENERGY_CONSUMPTION, new QuantityType<Energy>(state.energyConsumption, Units.WATT_HOUR));
 100     }
 101
 102     /**
 103      * Updates the channels which are linked to the {@link PowerSwitchService} of the device.
 104      *
 105      * @param state Current state of {@link PowerSwitchService}.
 106      */
 107     private void updateChannels(PowerSwitchServiceState state) {
 108         State powerState = OnOffType.from(state.switchState.toString());
 109         super.updateState(CHANNEL_POWER_SWITCH, powerState);
 110     }
 111
 112     private void updatePowerSwitchState(OnOffType command) {
 113         PowerSwitchServiceState state = new PowerSwitchServiceState();
 114         state.switchState = PowerSwitchState.valueOf(command.toFullString());
 115         this.updateServiceState(this.powerSwitchService, state);
 116     }
 117
 118     @Override
 119     public void processUpdate(String id, JsonElement state) {
 120         super.processUpdate(id, state);
 121
 122         logger.debug("in-wall switch: received update: ID {} state {}", id, state);
 123
 124         if (id.equals("PowerMeter")) {
 125             PowerMeterState powerMeterState = GSON.fromJson(state, PowerMeterState.class);
 126             if (powerMeterState == null) {
 127                 logger.warn("Received unknown update in in-wall switch: {}", state);
 128             } else {
 129                 updatePowerMeterState(powerMeterState);
 130             }
 131         }
 132     }
 133 }