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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.daikin.internal.handler;
  14
  15 import java.util.Optional;
  16 import java.util.concurrent.ScheduledFuture;
  17 import java.util.concurrent.TimeUnit;
  18
  19 import javax.measure.quantity.Temperature;
  20
  21 import org.eclipse.jdt.annotation.NonNullByDefault;
  22 import org.eclipse.jdt.annotation.Nullable;
  23 import org.eclipse.jetty.client.HttpClient;
  24 import org.openhab.binding.daikin.internal.DaikinBindingConstants;
  25 import org.openhab.binding.daikin.internal.DaikinCommunicationException;
  26 import org.openhab.binding.daikin.internal.DaikinCommunicationForbiddenException;
  27 import org.openhab.binding.daikin.internal.DaikinDynamicStateDescriptionProvider;
  28 import org.openhab.binding.daikin.internal.DaikinWebTargets;
  29 import org.openhab.binding.daikin.internal.api.Enums.HomekitMode;
  30 import org.openhab.binding.daikin.internal.config.DaikinConfiguration;
  31 import org.openhab.core.library.types.DecimalType;
  32 import org.openhab.core.library.types.OnOffType;
  33 import org.openhab.core.library.types.QuantityType;
  34 import org.openhab.core.library.types.StringType;
  35 import org.openhab.core.library.unit.SIUnits;
  36 import org.openhab.core.thing.ChannelUID;
  37 import org.openhab.core.thing.Thing;
  38 import org.openhab.core.thing.ThingStatus;
  39 import org.openhab.core.thing.ThingStatusDetail;
  40 import org.openhab.core.thing.binding.BaseThingHandler;
  41 import org.openhab.core.types.Command;
  42 import org.openhab.core.types.State;
  43 import org.openhab.core.types.UnDefType;
  44 import org.slf4j.Logger;
  45 import org.slf4j.LoggerFactory;
  46
  47 /**
  48  * Base class that handles common tasks with a Daikin air conditioning unit.
  49  *
  50  * @author Tim Waterhouse - Initial Contribution
  51  * @author Paul Smedley <paul@smedley.id.au> - Modifications to support Airbase Controllers
  52  * @author Jimmy Tanagra - Split handler classes, support Airside and DynamicStateDescription
  53  *
  54  */
  55 @NonNullByDefault
  56 public abstract class DaikinBaseHandler extends BaseThingHandler {
  57     private final Logger logger = LoggerFactory.getLogger(DaikinBaseHandler.class);
  58
  59     private final @Nullable HttpClient httpClient;
  60
  61     private long refreshInterval;
  62
  63     protected @Nullable DaikinWebTargets webTargets;
  64     private @Nullable ScheduledFuture<?> pollFuture;
  65     protected final DaikinDynamicStateDescriptionProvider stateDescriptionProvider;
  66     protected @Nullable DaikinConfiguration config;
  67     private boolean uuidRegistrationAttempted = false;
  68
  69     // Abstract methods to be overridden by specific Daikin implementation class
  70     protected abstract void pollStatus() throws DaikinCommunicationException;
  71
  72     protected abstract void changePower(boolean power) throws DaikinCommunicationException;
  73
  74     protected abstract void changeSetPoint(double newTemperature) throws DaikinCommunicationException;
  75
  76     protected abstract void changeMode(String mode) throws DaikinCommunicationException;
  77
  78     protected abstract void changeFanSpeed(String fanSpeed) throws DaikinCommunicationException;
  79
  80     // Power, Temp, Fan and Mode are handled in this base class. Override this to handle additional channels.
  81     protected abstract boolean handleCommandInternal(ChannelUID channelUID, Command command)
  82             throws DaikinCommunicationException;
  83
  84     protected abstract void registerUuid(@Nullable String key);
  85
  86     public DaikinBaseHandler(Thing thing, DaikinDynamicStateDescriptionProvider stateDescriptionProvider,
  87             @Nullable HttpClient httpClient) {
  88         super(thing);
  89         this.stateDescriptionProvider = stateDescriptionProvider;
  90         this.httpClient = httpClient;
  91     }
  92
  93     @Override
  94     public void handleCommand(ChannelUID channelUID, Command command) {
  95         try {
  96             if (handleCommandInternal(channelUID, command)) {
  97                 return;
  98             }
  99             switch (channelUID.getId()) {
 100                 case DaikinBindingConstants.CHANNEL_AC_POWER:
 101                     if (command instanceof OnOffType) {
 102                         changePower(((OnOffType) command).equals(OnOffType.ON));
 103                         return;
 104                     }
 105                     break;
 106                 case DaikinBindingConstants.CHANNEL_AC_TEMP:
 107                     if (changeSetPoint(command)) {
 108                         return;
 109                     }
 110                     break;
 111                 case DaikinBindingConstants.CHANNEL_AIRBASE_AC_FAN_SPEED:
 112                 case DaikinBindingConstants.CHANNEL_AC_FAN_SPEED:
 113                     if (command instanceof StringType) {
 114                         changeFanSpeed(((StringType) command).toString());
 115                         return;
 116                     }
 117                     break;
 118                 case DaikinBindingConstants.CHANNEL_AC_HOMEKITMODE:
 119                     if (command instanceof StringType) {
 120                         changeHomekitMode(command.toString());
 121                         return;
 122                     }
 123                     break;
 124                 case DaikinBindingConstants.CHANNEL_AC_MODE:
 125                     if (command instanceof StringType) {
 126                         changeMode(((StringType) command).toString());
 127                         return;
 128                     }
 129                     break;
 130             }
 131             logger.debug("Received command ({}) of wrong type for thing '{}' on channel {}", command,
 132                     thing.getUID().getAsString(), channelUID.getId());
 133         } catch (DaikinCommunicationException e) {
 134             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, e.getMessage());
 135         }
 136     }
 137
 138     @Override
 139     public void initialize() {
 140         logger.debug("Initializing Daikin AC Unit");
 141         config = getConfigAs(DaikinConfiguration.class);
 142         if (config.host == null) {
 143             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "Host address must be set");
 144         } else {
 145             if (config.uuid != null) {
 146                 config.uuid = config.uuid.replaceAll("\\s|-", "");
 147             }
 148             webTargets = new DaikinWebTargets(httpClient, config.host, config.secure, config.uuid);
 149             refreshInterval = config.refresh;
 150             schedulePoll();
 151         }
 152     }
 153
 154     @Override
 155     public void handleRemoval() {
 156         stopPoll();
 157         super.handleRemoval();
 158     }
 159
 160     @Override
 161     public void dispose() {
 162         stopPoll();
 163         super.dispose();
 164     }
 165
 166     protected void schedulePoll() {
 167         if (pollFuture != null) {
 168             pollFuture.cancel(false);
 169         }
 170         logger.debug("Scheduling poll for 1s out, then every {} s", refreshInterval);
 171         pollFuture = scheduler.scheduleWithFixedDelay(this::poll, 1, refreshInterval, TimeUnit.SECONDS);
 172     }
 173
 174     protected synchronized void stopPoll() {
 175         if (pollFuture != null && !pollFuture.isCancelled()) {
 176             pollFuture.cancel(true);
 177             pollFuture = null;
 178         }
 179     }
 180
 181     private synchronized void poll() {
 182         try {
 183             logger.trace("Polling for state");
 184             pollStatus();
 185             if (getThing().getStatus() != ThingStatus.ONLINE) {
 186                 updateStatus(ThingStatus.ONLINE);
 187             }
 188         } catch (DaikinCommunicationForbiddenException e) {
 189             if (!uuidRegistrationAttempted && config.key != null && config.uuid != null) {
 190                 logger.debug("poll: Attempting to register uuid {} with key {}", config.uuid, config.key);
 191                 registerUuid(config.key);
 192                 uuidRegistrationAttempted = true;
 193             } else {
 194                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 195                         "Access denied. Check uuid/key.");
 196                 logger.warn("{} access denied by adapter. Check uuid/key.", thing.getUID());
 197             }
 198         } catch (DaikinCommunicationException e) {
 199             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, e.getMessage());
 200         }
 201     }
 202
 203     protected void updateTemperatureChannel(String channel, Optional<Double> maybeTemperature) {
 204         updateState(channel,
 205                 maybeTemperature.<State> map(t -> new QuantityType<>(t, SIUnits.CELSIUS)).orElse(UnDefType.UNDEF));
 206     }
 207
 208     /**
 209      * @return true if the command was of an expected type, false otherwise
 210      */
 211     private boolean changeSetPoint(Command command) throws DaikinCommunicationException {
 212         double newTemperature;
 213         if (command instanceof DecimalType) {
 214             newTemperature = ((DecimalType) command).doubleValue();
 215         } else if (command instanceof QuantityType) {
 216             newTemperature = ((QuantityType<Temperature>) command).toUnit(SIUnits.CELSIUS).doubleValue();
 217         } else {
 218             return false;
 219         }
 220
 221         // Only half degree increments are allowed, all others are silently rejected by the A/C units
 222         newTemperature = Math.round(newTemperature * 2) / 2.0;
 223         changeSetPoint(newTemperature);
 224         return true;
 225     }
 226
 227     private void changeHomekitMode(String homekitmode) throws DaikinCommunicationException {
 228         if (HomekitMode.OFF.getValue().equals(homekitmode)) {
 229             changePower(false);
 230         } else {
 231             changePower(true);
 232             if (HomekitMode.AUTO.getValue().equals(homekitmode)) {
 233                 changeMode("AUTO");
 234             } else if (HomekitMode.HEAT.getValue().equals(homekitmode)) {
 235                 changeMode("HEAT");
 236             } else if (HomekitMode.COOL.getValue().equals(homekitmode)) {
 237                 changeMode("COLD");
 238             }
 239         }
 240     }
 241 }