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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.weathercompany.internal;
  14
  15 import static org.openhab.binding.weathercompany.internal.WeatherCompanyBindingConstants.*;
  16
  17 import java.util.HashMap;
  18 import java.util.Hashtable;
  19 import java.util.Map;
  20
  21 import org.eclipse.jdt.annotation.NonNullByDefault;
  22 import org.eclipse.jdt.annotation.Nullable;
  23 import org.eclipse.jetty.client.HttpClient;
  24 import org.openhab.binding.weathercompany.internal.discovery.WeatherCompanyDiscoveryService;
  25 import org.openhab.binding.weathercompany.internal.handler.WeatherCompanyBridgeHandler;
  26 import org.openhab.binding.weathercompany.internal.handler.WeatherCompanyForecastHandler;
  27 import org.openhab.binding.weathercompany.internal.handler.WeatherCompanyObservationsHandler;
  28 import org.openhab.core.config.discovery.DiscoveryService;
  29 import org.openhab.core.i18n.LocaleProvider;
  30 import org.openhab.core.i18n.LocationProvider;
  31 import org.openhab.core.i18n.TimeZoneProvider;
  32 import org.openhab.core.i18n.UnitProvider;
  33 import org.openhab.core.io.net.http.HttpClientFactory;
  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 WeatherCompanyHandlerFactory} is responsible for creating thing handlers.
  48  *
  49  * @author Mark Hilbush - Initial contribution
  50  */
  51 @NonNullByDefault
  52 @Component(configurationPid = "binding.weathercompany", service = ThingHandlerFactory.class)
  53 public class WeatherCompanyHandlerFactory extends BaseThingHandlerFactory {
  54     private final Map<ThingUID, ServiceRegistration<?>> discoveryServiceRegs = new HashMap<>();
  55
  56     private TimeZoneProvider timeZoneProvider;
  57     private UnitProvider unitProvider;
  58     private HttpClient httpClient;
  59     private LocationProvider locationProvider;
  60     private LocaleProvider localeProvider;
  61
  62     @Activate
  63     public WeatherCompanyHandlerFactory(@Reference TimeZoneProvider timeZoneProvider,
  64             @Reference UnitProvider unitProvider, @Reference HttpClientFactory httpClientFactory,
  65             @Reference LocationProvider locationProvider, @Reference LocaleProvider localeProvider) {
  66         this.timeZoneProvider = timeZoneProvider;
  67         this.unitProvider = unitProvider;
  68         this.httpClient = httpClientFactory.getCommonHttpClient();
  69         this.locationProvider = locationProvider;
  70         this.localeProvider = localeProvider;
  71     }
  72
  73     @Override
  74     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  75         return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  76     }
  77
  78     @Override
  79     protected @Nullable ThingHandler createHandler(Thing thing) {
  80         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  81
  82         if (THING_TYPE_WEATHER_FORECAST.equals(thingTypeUID)) {
  83             return new WeatherCompanyForecastHandler(thing, timeZoneProvider, httpClient, unitProvider, localeProvider);
  84         } else if (THING_TYPE_WEATHER_OBSERVATIONS.equals(thingTypeUID)) {
  85             return new WeatherCompanyObservationsHandler(thing, timeZoneProvider, httpClient, unitProvider,
  86                     localeProvider);
  87         } else if (SUPPORTED_BRIDGE_THING_TYPES_UIDS.contains(thingTypeUID)) {
  88             WeatherCompanyBridgeHandler handler = new WeatherCompanyBridgeHandler((Bridge) thing);
  89             registerDeviceDiscoveryService(handler);
  90             return handler;
  91         }
  92         return null;
  93     }
  94
  95     @Override
  96     protected synchronized void removeHandler(ThingHandler thingHandler) {
  97         if (thingHandler instanceof WeatherCompanyBridgeHandler) {
  98             ThingUID thingUID = thingHandler.getThing().getUID();
  99             unregisterDeviceDiscoveryService(thingUID);
 100         }
 101         super.removeHandler(thingHandler);
 102     }
 103
 104     private synchronized void registerDeviceDiscoveryService(WeatherCompanyBridgeHandler bridgeHandler) {
 105         WeatherCompanyDiscoveryService discoveryService = new WeatherCompanyDiscoveryService(bridgeHandler,
 106                 locationProvider, localeProvider);
 107         discoveryService.activate(null);
 108         this.discoveryServiceRegs.put(bridgeHandler.getThing().getUID(),
 109                 bundleContext.registerService(DiscoveryService.class.getName(), discoveryService, new Hashtable<>()));
 110     }
 111
 112     private void unregisterDeviceDiscoveryService(ThingUID bridgeUID) {
 113         ServiceRegistration<?> serviceReg = discoveryServiceRegs.remove(bridgeUID);
 114         if (serviceReg != null) {
 115             WeatherCompanyDiscoveryService discoveryService = (WeatherCompanyDiscoveryService) bundleContext
 116                     .getService(serviceReg.getReference());
 117             serviceReg.unregister();
 118             if (discoveryService != null) {
 119                 discoveryService.deactivate();
 120             }
 121         }
 122     }
 123 }