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