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