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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.tellstick.internal;
  14
  15 import static org.openhab.binding.tellstick.internal.TellstickBindingConstants.*;
  16
  17 import java.util.Hashtable;
  18
  19 import org.eclipse.jdt.annotation.NonNullByDefault;
  20 import org.eclipse.jdt.annotation.Nullable;
  21 import org.eclipse.jetty.client.HttpClient;
  22 import org.openhab.binding.tellstick.internal.core.TelldusCoreBridgeHandler;
  23 import org.openhab.binding.tellstick.internal.discovery.TellstickDiscoveryService;
  24 import org.openhab.binding.tellstick.internal.handler.TelldusBridgeHandler;
  25 import org.openhab.binding.tellstick.internal.handler.TelldusDevicesHandler;
  26 import org.openhab.binding.tellstick.internal.live.TelldusLiveBridgeHandler;
  27 import org.openhab.binding.tellstick.internal.local.TelldusLocalBridgeHandler;
  28 import org.openhab.core.config.discovery.DiscoveryService;
  29 import org.openhab.core.io.net.http.HttpClientFactory;
  30 import org.openhab.core.thing.Bridge;
  31 import org.openhab.core.thing.Thing;
  32 import org.openhab.core.thing.ThingTypeUID;
  33 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  34 import org.openhab.core.thing.binding.ThingHandler;
  35 import org.openhab.core.thing.binding.ThingHandlerFactory;
  36 import org.osgi.framework.ServiceRegistration;
  37 import org.osgi.service.component.annotations.Activate;
  38 import org.osgi.service.component.annotations.Component;
  39 import org.osgi.service.component.annotations.Reference;
  40 import org.slf4j.Logger;
  41 import org.slf4j.LoggerFactory;
  42
  43 /**
  44  * The {@link TellstickHandlerFactory} is responsible for creating things and thing
  45  * handlers.
  46  *
  47  * @author Jarle Hjortland - Initial contribution
  48  * @author Jan Gustafsson - Adding support for local API
  49  * @author Laurent Garnier - fix discovery service registering/unregistering
  50  */
  51 @Component(service = ThingHandlerFactory.class, configurationPid = "binding.tellstick")
  52 @NonNullByDefault
  53 public class TellstickHandlerFactory extends BaseThingHandlerFactory {
  54     private final Logger logger = LoggerFactory.getLogger(TellstickHandlerFactory.class);
  55     private final HttpClient httpClient;
  56     private @Nullable TellstickDiscoveryService discoveryService = null;
  57     private @Nullable ServiceRegistration<DiscoveryService> discoveryServiceRegistration = null;
  58
  59     @Activate
  60     public TellstickHandlerFactory(@Reference HttpClientFactory httpClientFactory) {
  61         this.httpClient = httpClientFactory.getCommonHttpClient();
  62     }
  63
  64     @Override
  65     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  66         return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  67     }
  68
  69     private synchronized void registerDeviceDiscoveryService(TelldusBridgeHandler tellstickBridgeHandler) {
  70         TellstickDiscoveryService service = discoveryService;
  71         if (service == null) {
  72             service = new TellstickDiscoveryService(tellstickBridgeHandler);
  73             service.activate();
  74             discoveryService = service;
  75             discoveryServiceRegistration = (ServiceRegistration<DiscoveryService>) bundleContext
  76                     .registerService(DiscoveryService.class.getName(), service, new Hashtable<>());
  77         } else {
  78             service.addBridgeHandler(tellstickBridgeHandler);
  79         }
  80     }
  81
  82     private synchronized void unregisterDeviceDiscoveryService(TelldusBridgeHandler tellstickBridgeHandler) {
  83         TellstickDiscoveryService service = discoveryService;
  84         if (service != null) {
  85             if (service.isOnlyForOneBridgeHandler()) {
  86                 service.deactivate();
  87                 discoveryService = null;
  88                 ServiceRegistration<DiscoveryService> serviceReg = discoveryServiceRegistration;
  89                 if (serviceReg != null) {
  90                     serviceReg.unregister();
  91                     discoveryServiceRegistration = null;
  92                 }
  93             } else {
  94                 service.removeBridgeHandler(tellstickBridgeHandler);
  95             }
  96         }
  97     }
  98
  99     @Override
 100     protected @Nullable ThingHandler createHandler(Thing thing) {
 101         if (thing.getThingTypeUID().equals(TELLDUSCOREBRIDGE_THING_TYPE)) {
 102             TelldusCoreBridgeHandler handler = new TelldusCoreBridgeHandler((Bridge) thing);
 103             registerDeviceDiscoveryService(handler);
 104             return handler;
 105         } else if (thing.getThingTypeUID().equals(TELLDUSLIVEBRIDGE_THING_TYPE)) {
 106             TelldusLiveBridgeHandler handler = new TelldusLiveBridgeHandler((Bridge) thing);
 107             registerDeviceDiscoveryService(handler);
 108             return handler;
 109         } else if (thing.getThingTypeUID().equals(TELLDUSLOCALBRIDGE_THING_TYPE)) {
 110             TelldusLocalBridgeHandler handler = new TelldusLocalBridgeHandler((Bridge) thing, httpClient);
 111             registerDeviceDiscoveryService(handler);
 112             return handler;
 113         } else if (supportsThingType(thing.getThingTypeUID())) {
 114             return new TelldusDevicesHandler(thing);
 115         } else {
 116             logger.debug("ThingHandler not found for {}", thing.getThingTypeUID());
 117             return null;
 118         }
 119     }
 120
 121     @Override
 122     protected void removeHandler(ThingHandler thingHandler) {
 123         if (thingHandler instanceof TelldusBridgeHandler telldusBridgeHandler) {
 124             unregisterDeviceDiscoveryService(telldusBridgeHandler);
 125         }
 126     }
 127 }