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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.gardena.internal.handler;
  14
  15 import java.util.Collection;
  16 import java.util.Collections;
  17 import java.util.concurrent.TimeUnit;
  18
  19 import org.eclipse.jdt.annotation.NonNullByDefault;
  20 import org.eclipse.jdt.annotation.Nullable;
  21 import org.openhab.binding.gardena.internal.GardenaSmart;
  22 import org.openhab.binding.gardena.internal.GardenaSmartEventListener;
  23 import org.openhab.binding.gardena.internal.GardenaSmartImpl;
  24 import org.openhab.binding.gardena.internal.config.GardenaConfig;
  25 import org.openhab.binding.gardena.internal.discovery.GardenaDeviceDiscoveryService;
  26 import org.openhab.binding.gardena.internal.exception.GardenaException;
  27 import org.openhab.binding.gardena.internal.model.dto.Device;
  28 import org.openhab.binding.gardena.internal.util.UidUtils;
  29 import org.openhab.core.io.net.http.HttpClientFactory;
  30 import org.openhab.core.io.net.http.WebSocketFactory;
  31 import org.openhab.core.thing.Bridge;
  32 import org.openhab.core.thing.Channel;
  33 import org.openhab.core.thing.ChannelUID;
  34 import org.openhab.core.thing.Thing;
  35 import org.openhab.core.thing.ThingStatus;
  36 import org.openhab.core.thing.ThingStatusDetail;
  37 import org.openhab.core.thing.ThingUID;
  38 import org.openhab.core.thing.binding.BaseBridgeHandler;
  39 import org.openhab.core.thing.binding.ThingHandlerService;
  40 import org.openhab.core.types.Command;
  41 import org.openhab.core.types.RefreshType;
  42 import org.slf4j.Logger;
  43 import org.slf4j.LoggerFactory;
  44
  45 /**
  46  * The {@link GardenaAccountHandler} is the handler for a Gardena smart system access and connects it to the framework.
  47  *
  48  * @author Gerhard Riegler - Initial contribution
  49  */
  50 @NonNullByDefault
  51 public class GardenaAccountHandler extends BaseBridgeHandler implements GardenaSmartEventListener {
  52     private final Logger logger = LoggerFactory.getLogger(GardenaAccountHandler.class);
  53     private final long REINITIALIZE_DELAY_SECONDS = 10;
  54
  55     private @Nullable GardenaDeviceDiscoveryService discoveryService;
  56
  57     private @Nullable GardenaSmart gardenaSmart;
  58     private HttpClientFactory httpClientFactory;
  59     private WebSocketFactory webSocketFactory;
  60
  61     public GardenaAccountHandler(Bridge bridge, HttpClientFactory httpClientFactory,
  62             WebSocketFactory webSocketFactory) {
  63         super(bridge);
  64         this.httpClientFactory = httpClientFactory;
  65         this.webSocketFactory = webSocketFactory;
  66     }
  67
  68     @Override
  69     public void initialize() {
  70         logger.debug("Initializing Gardena account '{}'", getThing().getUID().getId());
  71         initializeGardena();
  72     }
  73
  74     public void setDiscoveryService(GardenaDeviceDiscoveryService discoveryService) {
  75         this.discoveryService = discoveryService;
  76     }
  77
  78     /**
  79      * Initializes the GardenaSmart account.
  80      */
  81     private void initializeGardena() {
  82         final GardenaAccountHandler instance = this;
  83         scheduler.execute(() -> {
  84             try {
  85                 GardenaConfig gardenaConfig = getThing().getConfiguration().as(GardenaConfig.class);
  86                 logger.debug("{}", gardenaConfig);
  87
  88                 String id = getThing().getUID().getId();
  89                 gardenaSmart = new GardenaSmartImpl(id, gardenaConfig, instance, scheduler, httpClientFactory,
  90                         webSocketFactory);
  91                 final GardenaDeviceDiscoveryService discoveryService = this.discoveryService;
  92                 if (discoveryService != null) {
  93                     discoveryService.startScan(null);
  94                     discoveryService.waitForScanFinishing();
  95                 }
  96                 updateStatus(ThingStatus.ONLINE);
  97             } catch (GardenaException ex) {
  98                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, ex.getMessage());
  99                 disposeGardena();
 100                 scheduleReinitialize();
 101                 logger.warn("{}", ex.getMessage());
 102             }
 103         });
 104     }
 105
 106     /**
 107      * Schedules a reinitialization, if Gardena smart system account is not reachable.
 108      */
 109     private void scheduleReinitialize() {
 110         scheduler.schedule(() -> {
 111             if (getThing().getStatus() != ThingStatus.UNINITIALIZED) {
 112                 initializeGardena();
 113             }
 114         }, REINITIALIZE_DELAY_SECONDS, TimeUnit.SECONDS);
 115     }
 116
 117     @Override
 118     public void dispose() {
 119         super.dispose();
 120         disposeGardena();
 121     }
 122
 123     /**
 124      * Disposes the GardenaSmart account.
 125      */
 126     private void disposeGardena() {
 127         logger.debug("Disposing Gardena account '{}'", getThing().getUID().getId());
 128         final GardenaDeviceDiscoveryService discoveryService = this.discoveryService;
 129         if (discoveryService != null) {
 130             discoveryService.stopScan();
 131         }
 132         final GardenaSmart gardenaSmart = this.gardenaSmart;
 133         if (gardenaSmart != null) {
 134             gardenaSmart.dispose();
 135         }
 136     }
 137
 138     /**
 139      * Returns the Gardena smart system implementation.
 140      */
 141     public @Nullable GardenaSmart getGardenaSmart() {
 142         return gardenaSmart;
 143     }
 144
 145     @Override
 146     public Collection<Class<? extends ThingHandlerService>> getServices() {
 147         return Collections.singleton(GardenaDeviceDiscoveryService.class);
 148     }
 149
 150     @Override
 151     public void handleCommand(ChannelUID channelUID, Command command) {
 152         if (RefreshType.REFRESH == command) {
 153             logger.debug("Refreshing Gardena account '{}'", getThing().getUID().getId());
 154             disposeGardena();
 155             initializeGardena();
 156         }
 157     }
 158
 159     @Override
 160     public void onDeviceUpdated(Device device) {
 161         for (ThingUID thingUID : UidUtils.getThingUIDs(device, getThing())) {
 162             final Thing gardenaThing;
 163             final GardenaThingHandler gardenaThingHandler;
 164             if ((gardenaThing = getThing().getThing(thingUID)) != null
 165                     && (gardenaThingHandler = (GardenaThingHandler) gardenaThing.getHandler()) != null) {
 166                 try {
 167                     gardenaThingHandler.updateProperties(device);
 168                     for (Channel channel : gardenaThing.getChannels()) {
 169                         gardenaThingHandler.updateChannel(channel.getUID());
 170                     }
 171                     gardenaThingHandler.updateStatus(device);
 172                 } catch (GardenaException ex) {
 173                     updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, ex.getMessage());
 174                 } catch (AccountHandlerNotAvailableException ignore) {
 175                 }
 176             }
 177         }
 178     }
 179
 180     @Override
 181     public void onNewDevice(Device device) {
 182         final GardenaDeviceDiscoveryService discoveryService = this.discoveryService;
 183         if (discoveryService != null) {
 184             discoveryService.deviceDiscovered(device);
 185         }
 186         onDeviceUpdated(device);
 187     }
 188
 189     @Override
 190     public void onError() {
 191         updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, "Connection lost");
 192         disposeGardena();
 193         scheduleReinitialize();
 194     }
 195 }