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   1 /**
   2  * Copyright (c) 2010-2022 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.darksky.internal.factory;
  14
  15 import static org.openhab.binding.darksky.internal.DarkSkyBindingConstants.*;
  16
  17 import java.util.Collections;
  18 import java.util.HashMap;
  19 import java.util.Hashtable;
  20 import java.util.Map;
  21 import java.util.Set;
  22 import java.util.stream.Collectors;
  23 import java.util.stream.Stream;
  24
  25 import org.eclipse.jdt.annotation.NonNullByDefault;
  26 import org.eclipse.jdt.annotation.Nullable;
  27 import org.eclipse.jetty.client.HttpClient;
  28 import org.openhab.binding.darksky.internal.discovery.DarkSkyDiscoveryService;
  29 import org.openhab.binding.darksky.internal.handler.DarkSkyAPIHandler;
  30 import org.openhab.binding.darksky.internal.handler.DarkSkyWeatherAndForecastHandler;
  31 import org.openhab.core.config.discovery.DiscoveryService;
  32 import org.openhab.core.i18n.LocaleProvider;
  33 import org.openhab.core.i18n.LocationProvider;
  34 import org.openhab.core.i18n.TranslationProvider;
  35 import org.openhab.core.io.net.http.HttpClientFactory;
  36 import org.openhab.core.thing.Bridge;
  37 import org.openhab.core.thing.Thing;
  38 import org.openhab.core.thing.ThingTypeUID;
  39 import org.openhab.core.thing.ThingUID;
  40 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  41 import org.openhab.core.thing.binding.ThingHandler;
  42 import org.openhab.core.thing.binding.ThingHandlerFactory;
  43 import org.osgi.framework.ServiceRegistration;
  44 import org.osgi.service.component.annotations.Activate;
  45 import org.osgi.service.component.annotations.Component;
  46 import org.osgi.service.component.annotations.Reference;
  47
  48 /**
  49  * The {@link DarkSkyHandlerFactory} is responsible for creating things and thing handlers.
  50  *
  51  * @author Christoph Weitkamp - Initial contribution
  52  */
  53 @NonNullByDefault
  54 @Component(service = ThingHandlerFactory.class, configurationPid = "binding.darksky")
  55 public class DarkSkyHandlerFactory extends BaseThingHandlerFactory {
  56
  57     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Collections
  58             .unmodifiableSet(Stream
  59                     .concat(DarkSkyAPIHandler.SUPPORTED_THING_TYPES.stream(),
  60                             DarkSkyWeatherAndForecastHandler.SUPPORTED_THING_TYPES.stream())
  61                     .collect(Collectors.toSet()));
  62
  63     private final Map<ThingUID, ServiceRegistration<?>> discoveryServiceRegs = new HashMap<>();
  64     private final HttpClient httpClient;
  65     private final LocaleProvider localeProvider;
  66     private final LocationProvider locationProvider;
  67     private final TranslationProvider i18nProvider;
  68
  69     @Activate
  70     public DarkSkyHandlerFactory(final @Reference HttpClientFactory httpClientFactory,
  71             final @Reference LocaleProvider localeProvider, final @Reference LocationProvider locationProvider,
  72             final @Reference TranslationProvider i18nProvider) {
  73         this.httpClient = httpClientFactory.getCommonHttpClient();
  74         this.localeProvider = localeProvider;
  75         this.locationProvider = locationProvider;
  76         this.i18nProvider = i18nProvider;
  77     }
  78
  79     @Override
  80     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  81         return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  82     }
  83
  84     @Override
  85     protected @Nullable ThingHandler createHandler(Thing thing) {
  86         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  87
  88         if (THING_TYPE_WEATHER_API.equals(thingTypeUID)) {
  89             DarkSkyAPIHandler handler = new DarkSkyAPIHandler((Bridge) thing, httpClient, localeProvider);
  90             // register discovery service
  91             DarkSkyDiscoveryService discoveryService = new DarkSkyDiscoveryService(handler, locationProvider,
  92                     localeProvider, i18nProvider);
  93             discoveryServiceRegs.put(handler.getThing().getUID(), bundleContext
  94                     .registerService(DiscoveryService.class.getName(), discoveryService, new Hashtable<>()));
  95             return handler;
  96         } else if (THING_TYPE_WEATHER_AND_FORECAST.equals(thingTypeUID)) {
  97             return new DarkSkyWeatherAndForecastHandler(thing);
  98         }
  99
 100         return null;
 101     }
 102
 103     @Override
 104     protected synchronized void removeHandler(ThingHandler thingHandler) {
 105         if (thingHandler instanceof DarkSkyAPIHandler) {
 106             ServiceRegistration<?> serviceReg = discoveryServiceRegs.remove(thingHandler.getThing().getUID());
 107             if (serviceReg != null) {
 108                 // remove discovery service, if bridge handler is removed
 109                 DarkSkyDiscoveryService discoveryService = (DarkSkyDiscoveryService) bundleContext
 110                         .getService(serviceReg.getReference());
 111                 serviceReg.unregister();
 112                 if (discoveryService != null) {
 113                     discoveryService.deactivate();
 114                 }
 115             }
 116         }
 117     }
 118 }