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   1 /**
   2  * Copyright (c) 2010-2023 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.weatherunderground.internal;
  14
  15 import static org.openhab.binding.weatherunderground.internal.WeatherUndergroundBindingConstants.*;
  16
  17 import java.util.HashMap;
  18 import java.util.Hashtable;
  19 import java.util.Map;
  20 import java.util.Set;
  21 import java.util.stream.Collectors;
  22 import java.util.stream.Stream;
  23
  24 import org.eclipse.jdt.annotation.NonNullByDefault;
  25 import org.eclipse.jdt.annotation.Nullable;
  26 import org.openhab.binding.weatherunderground.internal.discovery.WeatherUndergroundDiscoveryService;
  27 import org.openhab.binding.weatherunderground.internal.handler.WeatherUndergroundBridgeHandler;
  28 import org.openhab.binding.weatherunderground.internal.handler.WeatherUndergroundHandler;
  29 import org.openhab.core.config.discovery.DiscoveryService;
  30 import org.openhab.core.i18n.LocaleProvider;
  31 import org.openhab.core.i18n.LocationProvider;
  32 import org.openhab.core.i18n.TimeZoneProvider;
  33 import org.openhab.core.i18n.UnitProvider;
  34 import org.openhab.core.thing.Bridge;
  35 import org.openhab.core.thing.Thing;
  36 import org.openhab.core.thing.ThingTypeUID;
  37 import org.openhab.core.thing.ThingUID;
  38 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  39 import org.openhab.core.thing.binding.ThingHandler;
  40 import org.openhab.core.thing.binding.ThingHandlerFactory;
  41 import org.osgi.framework.ServiceRegistration;
  42 import org.osgi.service.component.annotations.Activate;
  43 import org.osgi.service.component.annotations.Component;
  44 import org.osgi.service.component.annotations.Reference;
  45
  46 /**
  47  * The {@link WeatherUndergroundHandlerFactory} is responsible for creating things and thing
  48  * handlers.
  49  *
  50  * @author Laurent Garnier - Initial contribution
  51  * @author Theo Giovanna - Added a bridge for the API key
  52  * @author Laurent Garnier - Registration of the discovery service updated
  53  */
  54 @NonNullByDefault
  55 @Component(service = ThingHandlerFactory.class, configurationPid = "binding.weatherunderground")
  56 public class WeatherUndergroundHandlerFactory extends BaseThingHandlerFactory {
  57
  58     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Stream
  59             .of(BRIDGE_THING_TYPES_UIDS, WeatherUndergroundBindingConstants.SUPPORTED_THING_TYPES_UIDS)
  60             .flatMap(x -> x.stream()).collect(Collectors.toSet());
  61
  62     private final Map<ThingUID, ServiceRegistration<?>> discoveryServiceRegs = new HashMap<>();
  63
  64     private final LocaleProvider localeProvider;
  65     private final LocationProvider locationProvider;
  66     private final UnitProvider unitProvider;
  67     private final TimeZoneProvider timeZoneProvider;
  68
  69     @Activate
  70     public WeatherUndergroundHandlerFactory(final @Reference LocaleProvider localeProvider,
  71             final @Reference LocationProvider locationProvider, final @Reference UnitProvider unitProvider,
  72             final @Reference TimeZoneProvider timeZoneProvider) {
  73         this.localeProvider = localeProvider;
  74         this.locationProvider = locationProvider;
  75         this.unitProvider = unitProvider;
  76         this.timeZoneProvider = timeZoneProvider;
  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 (thingTypeUID.equals(THING_TYPE_WEATHER)) {
  89             return new WeatherUndergroundHandler(thing, localeProvider, unitProvider, timeZoneProvider);
  90         }
  91
  92         if (thingTypeUID.equals(THING_TYPE_BRIDGE)) {
  93             WeatherUndergroundBridgeHandler handler = new WeatherUndergroundBridgeHandler((Bridge) thing);
  94             registerDiscoveryService(handler.getThing().getUID());
  95             return handler;
  96         }
  97
  98         return null;
  99     }
 100
 101     @Override
 102     protected void removeHandler(ThingHandler thingHandler) {
 103         if (thingHandler instanceof WeatherUndergroundBridgeHandler) {
 104             unregisterDiscoveryService(thingHandler.getThing().getUID());
 105         }
 106     }
 107
 108     private synchronized void registerDiscoveryService(ThingUID bridgeUID) {
 109         WeatherUndergroundDiscoveryService discoveryService = new WeatherUndergroundDiscoveryService(bridgeUID,
 110                 localeProvider, locationProvider);
 111         discoveryService.activate(null);
 112         discoveryServiceRegs.put(bridgeUID,
 113                 bundleContext.registerService(DiscoveryService.class.getName(), discoveryService, new Hashtable<>()));
 114     }
 115
 116     private synchronized void unregisterDiscoveryService(ThingUID bridgeUID) {
 117         ServiceRegistration<?> serviceReg = discoveryServiceRegs.remove(bridgeUID);
 118         if (serviceReg != null) {
 119             WeatherUndergroundDiscoveryService service = (WeatherUndergroundDiscoveryService) bundleContext
 120                     .getService(serviceReg.getReference());
 121             serviceReg.unregister();
 122             if (service != null) {
 123                 service.deactivate();
 124             }
 125         }
 126     }
 127 }