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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.daikin.internal.handler;
  14
  15 import java.io.IOException;
  16 import java.util.Optional;
  17 import java.util.concurrent.ScheduledFuture;
  18 import java.util.concurrent.TimeUnit;
  19
  20 import javax.measure.quantity.Temperature;
  21
  22 import org.eclipse.jdt.annotation.NonNullByDefault;
  23 import org.eclipse.jdt.annotation.Nullable;
  24 import org.eclipse.jetty.client.HttpClient;
  25 import org.openhab.binding.daikin.internal.DaikinBindingConstants;
  26 import org.openhab.binding.daikin.internal.DaikinCommunicationException;
  27 import org.openhab.binding.daikin.internal.DaikinCommunicationForbiddenException;
  28 import org.openhab.binding.daikin.internal.DaikinDynamicStateDescriptionProvider;
  29 import org.openhab.binding.daikin.internal.DaikinWebTargets;
  30 import org.openhab.binding.daikin.internal.api.Enums.HomekitMode;
  31 import org.openhab.binding.daikin.internal.config.DaikinConfiguration;
  32 import org.openhab.core.library.types.DecimalType;
  33 import org.openhab.core.library.types.OnOffType;
  34 import org.openhab.core.library.types.QuantityType;
  35 import org.openhab.core.library.types.StringType;
  36 import org.openhab.core.library.unit.SIUnits;
  37 import org.openhab.core.thing.ChannelUID;
  38 import org.openhab.core.thing.Thing;
  39 import org.openhab.core.thing.ThingStatus;
  40 import org.openhab.core.thing.ThingStatusDetail;
  41 import org.openhab.core.thing.ThingTypeUID;
  42 import org.openhab.core.thing.binding.BaseThingHandler;
  43 import org.openhab.core.types.Command;
  44 import org.openhab.core.types.State;
  45 import org.openhab.core.types.UnDefType;
  46 import org.slf4j.Logger;
  47 import org.slf4j.LoggerFactory;
  48
  49 /**
  50  * Base class that handles common tasks with a Daikin air conditioning unit.
  51  *
  52  * @author Tim Waterhouse - Initial Contribution
  53  * @author Paul Smedley <paul@smedley.id.au> - Modifications to support Airbase Controllers
  54  * @author Jimmy Tanagra - Split handler classes, support Airside and DynamicStateDescription
  55  *
  56  */
  57 @NonNullByDefault
  58 public abstract class DaikinBaseHandler extends BaseThingHandler {
  59     private final Logger logger = LoggerFactory.getLogger(DaikinBaseHandler.class);
  60
  61     private final @Nullable HttpClient httpClient;
  62
  63     private long refreshInterval;
  64
  65     protected @Nullable DaikinWebTargets webTargets;
  66     private @Nullable ScheduledFuture<?> pollFuture;
  67     protected final DaikinDynamicStateDescriptionProvider stateDescriptionProvider;
  68     protected @Nullable DaikinConfiguration config;
  69     private boolean uuidRegistrationAttempted = false;
  70
  71     // Abstract methods to be overridden by specific Daikin implementation class
  72     protected abstract void pollStatus() throws IOException;
  73
  74     protected abstract void changePower(boolean power) throws DaikinCommunicationException;
  75
  76     protected abstract void changeSetPoint(double newTemperature) throws DaikinCommunicationException;
  77
  78     protected abstract void changeMode(String mode) throws DaikinCommunicationException;
  79
  80     protected abstract void changeFanSpeed(String fanSpeed) throws DaikinCommunicationException;
  81
  82     // Power, Temp, Fan and Mode are handled in this base class. Override this to handle additional channels.
  83     protected abstract boolean handleCommandInternal(ChannelUID channelUID, Command command)
  84             throws DaikinCommunicationException;
  85
  86     protected abstract void registerUuid(@Nullable String key);
  87
  88     public DaikinBaseHandler(Thing thing, DaikinDynamicStateDescriptionProvider stateDescriptionProvider,
  89             @Nullable HttpClient httpClient) {
  90         super(thing);
  91         this.stateDescriptionProvider = stateDescriptionProvider;
  92         this.httpClient = httpClient;
  93     }
  94
  95     @Override
  96     public void handleCommand(ChannelUID channelUID, Command command) {
  97         try {
  98             if (handleCommandInternal(channelUID, command)) {
  99                 return;
 100             }
 101             switch (channelUID.getId()) {
 102                 case DaikinBindingConstants.CHANNEL_AC_POWER:
 103                     if (command instanceof OnOffType) {
 104                         changePower(((OnOffType) command).equals(OnOffType.ON));
 105                         return;
 106                     }
 107                     break;
 108                 case DaikinBindingConstants.CHANNEL_AC_TEMP:
 109                     if (changeSetPoint(command)) {
 110                         return;
 111                     }
 112                     break;
 113                 case DaikinBindingConstants.CHANNEL_AIRBASE_AC_FAN_SPEED:
 114                 case DaikinBindingConstants.CHANNEL_AC_FAN_SPEED:
 115                     if (command instanceof StringType) {
 116                         changeFanSpeed(((StringType) command).toString());
 117                         return;
 118                     }
 119                     break;
 120                 case DaikinBindingConstants.CHANNEL_AC_HOMEKITMODE:
 121                     if (command instanceof StringType) {
 122                         changeHomekitMode(command.toString());
 123                         return;
 124                     }
 125                     break;
 126                 case DaikinBindingConstants.CHANNEL_AC_MODE:
 127                     if (command instanceof StringType) {
 128                         changeMode(((StringType) command).toString());
 129                         return;
 130                     }
 131                     break;
 132             }
 133             logger.debug("Received command ({}) of wrong type for thing '{}' on channel {}", command,
 134                     thing.getUID().getAsString(), channelUID.getId());
 135         } catch (DaikinCommunicationException ex) {
 136             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, ex.getMessage());
 137         }
 138     }
 139
 140     @Override
 141     public void initialize() {
 142         logger.debug("Initializing Daikin AC Unit");
 143         config = getConfigAs(DaikinConfiguration.class);
 144         if (config.host == null) {
 145             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "Host address must be set");
 146         } else {
 147             if (config.uuid != null) {
 148                 config.uuid = config.uuid.replaceAll("\\s|-", "");
 149             }
 150             webTargets = new DaikinWebTargets(httpClient, config.host, config.secure, config.uuid);
 151             refreshInterval = config.refresh;
 152
 153             schedulePoll();
 154         }
 155     }
 156
 157     @Override
 158     public void handleRemoval() {
 159         stopPoll();
 160         super.handleRemoval();
 161     }
 162
 163     @Override
 164     public void dispose() {
 165         stopPoll();
 166         super.dispose();
 167     }
 168
 169     protected void schedulePoll() {
 170         if (pollFuture != null) {
 171             pollFuture.cancel(false);
 172         }
 173         logger.debug("Scheduling poll for 1s out, then every {} s", refreshInterval);
 174         pollFuture = scheduler.scheduleWithFixedDelay(this::poll, 1, refreshInterval, TimeUnit.SECONDS);
 175     }
 176
 177     protected synchronized void stopPoll() {
 178         if (pollFuture != null && !pollFuture.isCancelled()) {
 179             pollFuture.cancel(true);
 180             pollFuture = null;
 181         }
 182     }
 183
 184     private synchronized void poll() {
 185         try {
 186             logger.debug("Polling for state");
 187             pollStatus();
 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 (IOException e) {
 199             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, e.getMessage());
 200         } catch (RuntimeException e) {
 201             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, e.getMessage());
 202         }
 203     }
 204
 205     protected void updateTemperatureChannel(String channel, Optional<Double> maybeTemperature) {
 206         updateState(channel,
 207                 maybeTemperature.<State> map(t -> new QuantityType<>(t, SIUnits.CELSIUS)).orElse(UnDefType.UNDEF));
 208     }
 209
 210     /**
 211      * @return true if the command was of an expected type, false otherwise
 212      */
 213     private boolean changeSetPoint(Command command) throws DaikinCommunicationException {
 214         double newTemperature;
 215         if (command instanceof DecimalType) {
 216             newTemperature = ((DecimalType) command).doubleValue();
 217         } else if (command instanceof QuantityType) {
 218             newTemperature = ((QuantityType<Temperature>) command).toUnit(SIUnits.CELSIUS).doubleValue();
 219         } else {
 220             return false;
 221         }
 222
 223         // Only half degree increments are allowed, all others are silently rejected by the A/C units
 224         newTemperature = Math.round(newTemperature * 2) / 2.0;
 225         changeSetPoint(newTemperature);
 226         return true;
 227     }
 228
 229     private void changeHomekitMode(String homekitmode) throws DaikinCommunicationException {
 230         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
 231         if (HomekitMode.OFF.getValue().equals(homekitmode)) {
 232             changePower(false);
 233         } else {
 234             changePower(true);
 235             if (HomekitMode.AUTO.getValue().equals(homekitmode)) {
 236                 changeMode("AUTO");
 237             } else if (HomekitMode.HEAT.getValue().equals(homekitmode)) {
 238                 changeMode("HEAT");
 239             } else if (HomekitMode.COOL.getValue().equals(homekitmode)) {
 240                 changeMode("COLD");
 241             }
 242         }
 243     }
 244 }