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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.amazonechocontrol.internal;
  14
  15 import static org.openhab.binding.amazonechocontrol.internal.AmazonEchoControlBindingConstants.*;
  16
  17 import java.util.ArrayList;
  18 import java.util.HashMap;
  19 import java.util.HashSet;
  20 import java.util.Hashtable;
  21 import java.util.List;
  22 import java.util.Map;
  23 import java.util.Objects;
  24 import java.util.Set;
  25
  26 import org.eclipse.jdt.annotation.NonNullByDefault;
  27 import org.eclipse.jdt.annotation.Nullable;
  28 import org.openhab.binding.amazonechocontrol.internal.discovery.AmazonEchoDiscovery;
  29 import org.openhab.binding.amazonechocontrol.internal.discovery.SmartHomeDevicesDiscovery;
  30 import org.openhab.binding.amazonechocontrol.internal.handler.AccountHandler;
  31 import org.openhab.binding.amazonechocontrol.internal.handler.EchoHandler;
  32 import org.openhab.binding.amazonechocontrol.internal.handler.FlashBriefingProfileHandler;
  33 import org.openhab.binding.amazonechocontrol.internal.handler.SmartHomeDeviceHandler;
  34 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  35 import org.openhab.core.config.discovery.DiscoveryService;
  36 import org.openhab.core.storage.Storage;
  37 import org.openhab.core.storage.StorageService;
  38 import org.openhab.core.thing.Bridge;
  39 import org.openhab.core.thing.Thing;
  40 import org.openhab.core.thing.ThingTypeUID;
  41 import org.openhab.core.thing.ThingUID;
  42 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  43 import org.openhab.core.thing.binding.ThingHandler;
  44 import org.openhab.core.thing.binding.ThingHandlerFactory;
  45 import org.osgi.framework.ServiceRegistration;
  46 import org.osgi.service.component.ComponentContext;
  47 import org.osgi.service.component.annotations.Activate;
  48 import org.osgi.service.component.annotations.Component;
  49 import org.osgi.service.component.annotations.Reference;
  50 import org.osgi.service.http.HttpService;
  51 import org.slf4j.Logger;
  52 import org.slf4j.LoggerFactory;
  53
  54 import com.google.gson.Gson;
  55
  56 /**
  57  * The {@link AmazonEchoControlHandlerFactory} is responsible for creating things and thing
  58  * handlers.
  59  *
  60  * @author Michael Geramb - Initial contribution
  61  */
  62 @Component(service = { ThingHandlerFactory.class,
  63         AmazonEchoControlHandlerFactory.class }, configurationPid = "binding.amazonechocontrol")
  64 @NonNullByDefault
  65 public class AmazonEchoControlHandlerFactory extends BaseThingHandlerFactory {
  66     private final Logger logger = LoggerFactory.getLogger(AmazonEchoControlHandlerFactory.class);
  67     private final Map<ThingUID, List<ServiceRegistration<?>>> discoveryServiceRegistrations = new HashMap<>();
  68
  69     private final Set<AccountHandler> accountHandlers = new HashSet<>();
  70     private final HttpService httpService;
  71     private final StorageService storageService;
  72     private final BindingServlet bindingServlet;
  73     private final Gson gson;
  74
  75     @Activate
  76     public AmazonEchoControlHandlerFactory(@Reference HttpService httpService,
  77             @Reference StorageService storageService) {
  78         this.storageService = storageService;
  79         this.httpService = httpService;
  80         this.gson = new Gson();
  81         this.bindingServlet = new BindingServlet(httpService);
  82     }
  83
  84     @Override
  85     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  86         return SUPPORTED_ECHO_THING_TYPES_UIDS.contains(thingTypeUID)
  87                 || SUPPORTED_SMART_HOME_THING_TYPES_UIDS.contains(thingTypeUID);
  88     }
  89
  90     @Override
  91     protected void deactivate(ComponentContext componentContext) {
  92         bindingServlet.dispose();
  93         super.deactivate(componentContext);
  94     }
  95
  96     @Override
  97     protected @Nullable ThingHandler createHandler(Thing thing) {
  98         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  99
 100         if (thingTypeUID.equals(THING_TYPE_ACCOUNT)) {
 101             Storage<String> storage = storageService.getStorage(thing.getUID().toString(),
 102                     String.class.getClassLoader());
 103             AccountHandler bridgeHandler = new AccountHandler((Bridge) thing, httpService, storage, gson);
 104             accountHandlers.add(bridgeHandler);
 105             registerDiscoveryService(bridgeHandler);
 106             bindingServlet.addAccountThing(thing);
 107             return bridgeHandler;
 108         } else if (thingTypeUID.equals(THING_TYPE_FLASH_BRIEFING_PROFILE)) {
 109             Storage<String> storage = storageService.getStorage(thing.getUID().toString(),
 110                     String.class.getClassLoader());
 111             return new FlashBriefingProfileHandler(thing, storage);
 112         } else if (SUPPORTED_ECHO_THING_TYPES_UIDS.contains(thingTypeUID)) {
 113             return new EchoHandler(thing, gson);
 114         } else if (SUPPORTED_SMART_HOME_THING_TYPES_UIDS.contains(thingTypeUID)) {
 115             return new SmartHomeDeviceHandler(thing, gson);
 116         }
 117         return null;
 118     }
 119
 120     private synchronized void registerDiscoveryService(AccountHandler bridgeHandler) {
 121         List<ServiceRegistration<?>> discoveryServiceRegistration = Objects.requireNonNull(discoveryServiceRegistrations
 122                 .computeIfAbsent(bridgeHandler.getThing().getUID(), k -> new ArrayList<>()));
 123         SmartHomeDevicesDiscovery smartHomeDevicesDiscovery = new SmartHomeDevicesDiscovery(bridgeHandler);
 124         smartHomeDevicesDiscovery.activate();
 125         discoveryServiceRegistration.add(bundleContext.registerService(DiscoveryService.class.getName(),
 126                 smartHomeDevicesDiscovery, new Hashtable<>()));
 127
 128         AmazonEchoDiscovery discoveryService = new AmazonEchoDiscovery(bridgeHandler);
 129         discoveryService.activate();
 130         discoveryServiceRegistration.add(
 131                 bundleContext.registerService(DiscoveryService.class.getName(), discoveryService, new Hashtable<>()));
 132     }
 133
 134     @Override
 135     protected synchronized void removeHandler(ThingHandler thingHandler) {
 136         if (thingHandler instanceof AccountHandler) {
 137             accountHandlers.remove(thingHandler);
 138             BindingServlet bindingServlet = this.bindingServlet;
 139             bindingServlet.removeAccountThing(thingHandler.getThing());
 140
 141             List<ServiceRegistration<?>> discoveryServiceRegistration = discoveryServiceRegistrations
 142                     .remove(thingHandler.getThing().getUID());
 143             if (discoveryServiceRegistration != null) {
 144                 discoveryServiceRegistration.forEach(serviceReg -> {
 145                     AbstractDiscoveryService service = (AbstractDiscoveryService) bundleContext
 146                             .getService(serviceReg.getReference());
 147                     serviceReg.unregister();
 148                     if (service != null) {
 149                         if (service instanceof AmazonEchoDiscovery discovery) {
 150                             discovery.deactivate();
 151                         } else if (service instanceof SmartHomeDevicesDiscovery discovery) {
 152                             discovery.deactivate();
 153                         } else {
 154                             logger.warn("Found unknown discovery-service instance: {}", service);
 155                         }
 156                     }
 157                 });
 158             }
 159         }
 160     }
 161
 162     public Set<AccountHandler> getAccountHandlers() {
 163         return accountHandlers;
 164     }
 165 }