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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.flicbutton.internal;
  14
  15 import java.util.HashMap;
  16 import java.util.Hashtable;
  17 import java.util.Map;
  18 import java.util.Set;
  19 import java.util.stream.Collectors;
  20 import java.util.stream.Stream;
  21
  22 import org.eclipse.jdt.annotation.NonNullByDefault;
  23 import org.eclipse.jdt.annotation.Nullable;
  24 import org.openhab.binding.flicbutton.internal.discovery.FlicButtonDiscoveryService;
  25 import org.openhab.binding.flicbutton.internal.discovery.FlicSimpleclientDiscoveryServiceImpl;
  26 import org.openhab.binding.flicbutton.internal.handler.FlicButtonHandler;
  27 import org.openhab.binding.flicbutton.internal.handler.FlicDaemonBridgeHandler;
  28 import org.openhab.core.config.discovery.DiscoveryService;
  29 import org.openhab.core.thing.Bridge;
  30 import org.openhab.core.thing.Thing;
  31 import org.openhab.core.thing.ThingTypeUID;
  32 import org.openhab.core.thing.ThingUID;
  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.Component;
  38
  39 /**
  40  * The {@link FlicButtonHandlerFactory} is responsible for creating things and thing
  41  * handlers.
  42  *
  43  * @author Patrick Fink - Initial contribution
  44  */
  45 @Component(service = ThingHandlerFactory.class, configurationPid = "binding.flicbutton")
  46 @NonNullByDefault
  47 public class FlicButtonHandlerFactory extends BaseThingHandlerFactory {
  48
  49     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Stream
  50             .concat(FlicButtonBindingConstants.BRIDGE_THING_TYPES_UIDS.stream(),
  51                     FlicButtonBindingConstants.SUPPORTED_THING_TYPES_UIDS.stream())
  52             .collect(Collectors.toSet());
  53     private final Map<ThingUID, @Nullable ServiceRegistration<?>> discoveryServiceRegs = new HashMap<>();
  54
  55     @Override
  56     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  57         return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  58     }
  59
  60     @Override
  61     @Nullable
  62     protected ThingHandler createHandler(Thing thing) {
  63         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  64
  65         if (thingTypeUID.equals(FlicButtonBindingConstants.FLICBUTTON_THING_TYPE)) {
  66             return new FlicButtonHandler(thing);
  67         } else if (thingTypeUID.equals(FlicButtonBindingConstants.BRIDGE_THING_TYPE)) {
  68             FlicButtonDiscoveryService discoveryService = new FlicSimpleclientDiscoveryServiceImpl(thing.getUID());
  69             FlicDaemonBridgeHandler bridgeHandler = new FlicDaemonBridgeHandler((Bridge) thing, discoveryService);
  70             registerDiscoveryService(discoveryService, thing.getUID());
  71
  72             return bridgeHandler;
  73         }
  74
  75         return null;
  76     }
  77
  78     @Override
  79     protected synchronized void removeHandler(ThingHandler thingHandler) {
  80         if (thingHandler instanceof FlicDaemonBridgeHandler) {
  81             unregisterDiscoveryService(thingHandler.getThing().getUID());
  82         }
  83         super.removeHandler(thingHandler);
  84     }
  85
  86     private synchronized void registerDiscoveryService(FlicButtonDiscoveryService discoveryService,
  87             ThingUID bridgeUID) {
  88         this.discoveryServiceRegs.put(bridgeUID, getBundleContext().registerService(DiscoveryService.class.getName(),
  89                 discoveryService, new Hashtable<String, Object>()));
  90     }
  91
  92     private synchronized void unregisterDiscoveryService(ThingUID bridgeUID) {
  93         ServiceRegistration<?> serviceReg = this.discoveryServiceRegs.get(bridgeUID);
  94         if (serviceReg != null) {
  95             FlicButtonDiscoveryService service = (FlicButtonDiscoveryService) getBundleContext()
  96                     .getService(serviceReg.getReference());
  97             if (service != null) {
  98                 service.deactivate();
  99             }
 100             serviceReg.unregister();
 101             discoveryServiceRegs.remove(bridgeUID);
 102         }
 103     }
 104 }