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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.hdpowerview.internal.handler;
  14
  15 import static org.openhab.binding.hdpowerview.internal.HDPowerViewBindingConstants.*;
  16 import static org.openhab.binding.hdpowerview.internal.api.ActuatorClass.*;
  17 import static org.openhab.binding.hdpowerview.internal.api.CoordinateSystem.*;
  18
  19 import java.util.concurrent.ScheduledFuture;
  20 import java.util.concurrent.TimeUnit;
  21
  22 import javax.ws.rs.ProcessingException;
  23
  24 import org.eclipse.jdt.annotation.NonNullByDefault;
  25 import org.eclipse.jdt.annotation.Nullable;
  26 import org.openhab.binding.hdpowerview.internal.HDPowerViewWebTargets;
  27 import org.openhab.binding.hdpowerview.internal.HubMaintenanceException;
  28 import org.openhab.binding.hdpowerview.internal.api.ActuatorClass;
  29 import org.openhab.binding.hdpowerview.internal.api.CoordinateSystem;
  30 import org.openhab.binding.hdpowerview.internal.api.ShadePosition;
  31 import org.openhab.binding.hdpowerview.internal.api.responses.Shade;
  32 import org.openhab.binding.hdpowerview.internal.api.responses.Shades.ShadeData;
  33 import org.openhab.binding.hdpowerview.internal.config.HDPowerViewShadeConfiguration;
  34 import org.openhab.core.library.types.OnOffType;
  35 import org.openhab.core.library.types.PercentType;
  36 import org.openhab.core.library.types.StopMoveType;
  37 import org.openhab.core.library.types.UpDownType;
  38 import org.openhab.core.thing.ChannelUID;
  39 import org.openhab.core.thing.Thing;
  40 import org.openhab.core.thing.ThingStatus;
  41 import org.openhab.core.thing.ThingStatusDetail;
  42 import org.openhab.core.types.Command;
  43 import org.openhab.core.types.RefreshType;
  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  * Handles commands for an HD PowerView Shade
  51  *
  52  * @author Andy Lintner - Initial contribution
  53  * @author Andrew Fiddian-Green - Added support for secondary rail positions
  54  */
  55 @NonNullByDefault
  56 public class HDPowerViewShadeHandler extends AbstractHubbedThingHandler {
  57
  58     private final Logger logger = LoggerFactory.getLogger(HDPowerViewShadeHandler.class);
  59
  60     private static final int REFRESH_DELAY_SEC = 10;
  61     private @Nullable ScheduledFuture<?> refreshFuture = null;
  62
  63     public HDPowerViewShadeHandler(Thing thing) {
  64         super(thing);
  65     }
  66
  67     @Override
  68     public void initialize() {
  69         try {
  70             getShadeId();
  71         } catch (NumberFormatException e) {
  72             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
  73                     "Configuration 'id' not a valid integer");
  74             return;
  75         }
  76         if (getBridgeHandler() == null) {
  77             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "Hub not configured");
  78             return;
  79         }
  80         updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR);
  81     }
  82
  83     @Override
  84     public void handleCommand(ChannelUID channelUID, Command command) {
  85         if (RefreshType.REFRESH.equals(command)) {
  86             requestRefreshShade();
  87             return;
  88         }
  89
  90         switch (channelUID.getId()) {
  91             case CHANNEL_SHADE_POSITION:
  92                 if (command instanceof PercentType) {
  93                     moveShade(PRIMARY_ACTUATOR, ZERO_IS_CLOSED, ((PercentType) command).intValue());
  94                 } else if (command instanceof UpDownType) {
  95                     moveShade(PRIMARY_ACTUATOR, ZERO_IS_CLOSED, UpDownType.UP.equals(command) ? 0 : 100);
  96                 } else if (command instanceof StopMoveType) {
  97                     if (StopMoveType.STOP.equals(command)) {
  98                         stopShade();
  99                     } else {
 100                         logger.warn("Unexpected StopMoveType command");
 101                     }
 102                 }
 103                 break;
 104
 105             case CHANNEL_SHADE_VANE:
 106                 if (command instanceof PercentType) {
 107                     moveShade(PRIMARY_ACTUATOR, VANE_COORDS, ((PercentType) command).intValue());
 108                 } else if (command instanceof OnOffType) {
 109                     moveShade(PRIMARY_ACTUATOR, VANE_COORDS, OnOffType.ON.equals(command) ? 100 : 0);
 110                 }
 111                 break;
 112
 113             case CHANNEL_SHADE_SECONDARY_POSITION:
 114                 if (command instanceof PercentType) {
 115                     moveShade(SECONDARY_ACTUATOR, ZERO_IS_OPEN, ((PercentType) command).intValue());
 116                 } else if (command instanceof UpDownType) {
 117                     moveShade(SECONDARY_ACTUATOR, ZERO_IS_OPEN, UpDownType.UP.equals(command) ? 0 : 100);
 118                 } else if (command instanceof StopMoveType) {
 119                     if (StopMoveType.STOP.equals(command)) {
 120                         stopShade();
 121                     } else {
 122                         logger.warn("Unexpected StopMoveType command");
 123                     }
 124                 }
 125                 break;
 126         }
 127     }
 128
 129     /**
 130      * Update the state of the channels based on the ShadeData provided
 131      *
 132      * @param shadeData the ShadeData to be used; may be null
 133      */
 134     protected void onReceiveUpdate(@Nullable ShadeData shadeData) {
 135         if (shadeData != null) {
 136             updateStatus(ThingStatus.ONLINE);
 137             updateBindingStates(shadeData.positions);
 138             updateState(CHANNEL_SHADE_LOW_BATTERY, shadeData.batteryStatus < 2 ? OnOffType.ON : OnOffType.OFF);
 139         } else {
 140             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR);
 141         }
 142     }
 143
 144     private void updateBindingStates(@Nullable ShadePosition shadePos) {
 145         if (shadePos != null) {
 146             updateState(CHANNEL_SHADE_POSITION, shadePos.getState(PRIMARY_ACTUATOR, ZERO_IS_CLOSED));
 147             updateState(CHANNEL_SHADE_VANE, shadePos.getState(PRIMARY_ACTUATOR, VANE_COORDS));
 148             updateState(CHANNEL_SHADE_SECONDARY_POSITION, shadePos.getState(SECONDARY_ACTUATOR, ZERO_IS_OPEN));
 149         } else {
 150             updateState(CHANNEL_SHADE_POSITION, UnDefType.UNDEF);
 151             updateState(CHANNEL_SHADE_VANE, UnDefType.UNDEF);
 152             updateState(CHANNEL_SHADE_SECONDARY_POSITION, UnDefType.UNDEF);
 153         }
 154     }
 155
 156     private void moveShade(ActuatorClass actuatorClass, CoordinateSystem coordSys, int newPercent) {
 157         try {
 158             HDPowerViewHubHandler bridge;
 159             if ((bridge = getBridgeHandler()) == null) {
 160                 throw new ProcessingException("Missing bridge handler");
 161             }
 162             HDPowerViewWebTargets webTargets = bridge.getWebTargets();
 163             if (webTargets == null) {
 164                 throw new ProcessingException("Web targets not initialized");
 165             }
 166             int shadeId = getShadeId();
 167
 168             switch (actuatorClass) {
 169                 case PRIMARY_ACTUATOR:
 170                     // write the new primary position
 171                     webTargets.moveShade(shadeId, ShadePosition.create(coordSys, newPercent));
 172                     break;
 173                 case SECONDARY_ACTUATOR:
 174                     // read the current primary position; default value 100%
 175                     int primaryPercent = 100;
 176                     Shade shade = webTargets.getShade(shadeId);
 177                     if (shade != null) {
 178                         ShadeData shadeData = shade.shade;
 179                         if (shadeData != null) {
 180                             ShadePosition shadePos = shadeData.positions;
 181                             if (shadePos != null) {
 182                                 State primaryState = shadePos.getState(PRIMARY_ACTUATOR, ZERO_IS_CLOSED);
 183                                 if (primaryState instanceof PercentType) {
 184                                     primaryPercent = ((PercentType) primaryState).intValue();
 185                                 }
 186                             }
 187                         }
 188                     }
 189                     // write the current primary position, plus the new secondary position
 190                     webTargets.moveShade(shadeId,
 191                             ShadePosition.create(ZERO_IS_CLOSED, primaryPercent, ZERO_IS_OPEN, newPercent));
 192             }
 193         } catch (ProcessingException | NumberFormatException e) {
 194             logger.warn("Unexpected error: {}", e.getMessage());
 195             return;
 196         } catch (HubMaintenanceException e) {
 197             // exceptions are logged in HDPowerViewWebTargets
 198             return;
 199         }
 200     }
 201
 202     private int getShadeId() throws NumberFormatException {
 203         String str = getConfigAs(HDPowerViewShadeConfiguration.class).id;
 204         if (str == null) {
 205             throw new NumberFormatException("null input string");
 206         }
 207         return Integer.parseInt(str);
 208     }
 209
 210     private void stopShade() {
 211         try {
 212             HDPowerViewHubHandler bridge;
 213             if ((bridge = getBridgeHandler()) == null) {
 214                 throw new ProcessingException("Missing bridge handler");
 215             }
 216             HDPowerViewWebTargets webTargets = bridge.getWebTargets();
 217             if (webTargets == null) {
 218                 throw new ProcessingException("Web targets not initialized");
 219             }
 220             int shadeId = getShadeId();
 221             webTargets.stopShade(shadeId);
 222             requestRefreshShade();
 223         } catch (ProcessingException | NumberFormatException e) {
 224             logger.warn("Unexpected error: {}", e.getMessage());
 225             return;
 226         } catch (HubMaintenanceException e) {
 227             // exceptions are logged in HDPowerViewWebTargets
 228             return;
 229         }
 230     }
 231
 232     /**
 233      * Request that the shade shall undergo a 'hard' refresh
 234      */
 235     protected synchronized void requestRefreshShade() {
 236         if (refreshFuture == null) {
 237             refreshFuture = scheduler.schedule(this::doRefreshShade, REFRESH_DELAY_SEC, TimeUnit.SECONDS);
 238         }
 239     }
 240
 241     private void doRefreshShade() {
 242         try {
 243             HDPowerViewHubHandler bridge;
 244             if ((bridge = getBridgeHandler()) == null) {
 245                 throw new ProcessingException("Missing bridge handler");
 246             }
 247             HDPowerViewWebTargets webTargets = bridge.getWebTargets();
 248             if (webTargets == null) {
 249                 throw new ProcessingException("Web targets not initialized");
 250             }
 251             int shadeId = getShadeId();
 252             Shade shade = webTargets.refreshShade(shadeId);
 253             if (shade != null) {
 254                 ShadeData shadeData = shade.shade;
 255                 if (shadeData != null) {
 256                     if (Boolean.TRUE.equals(shadeData.timedOut)) {
 257                         logger.warn("Shade {} wireless refresh time out", shadeId);
 258                     }
 259                 }
 260             }
 261         } catch (ProcessingException | NumberFormatException e) {
 262             logger.warn("Unexpected error: {}", e.getMessage());
 263         } catch (HubMaintenanceException e) {
 264             // exceptions are logged in HDPowerViewWebTargets
 265         }
 266         refreshFuture = null;
 267     }
 268 }