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   1 /**
   2  * Copyright (c) 2010-2020 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.SUPPORTED_ECHO_THING_TYPES_UIDS;
  16 import static org.openhab.binding.amazonechocontrol.internal.AmazonEchoControlBindingConstants.SUPPORTED_SMART_HOME_THING_TYPES_UIDS;
  17 import static org.openhab.binding.amazonechocontrol.internal.AmazonEchoControlBindingConstants.THING_TYPE_ACCOUNT;
  18 import static org.openhab.binding.amazonechocontrol.internal.AmazonEchoControlBindingConstants.THING_TYPE_FLASH_BRIEFING_PROFILE;
  19
  20 import java.util.ArrayList;
  21 import java.util.HashMap;
  22 import java.util.HashSet;
  23 import java.util.Hashtable;
  24 import java.util.List;
  25 import java.util.Map;
  26 import java.util.Set;
  27
  28 import org.eclipse.jdt.annotation.NonNullByDefault;
  29 import org.eclipse.jdt.annotation.Nullable;
  30 import org.openhab.binding.amazonechocontrol.internal.discovery.AmazonEchoDiscovery;
  31 import org.openhab.binding.amazonechocontrol.internal.discovery.SmartHomeDevicesDiscovery;
  32 import org.openhab.binding.amazonechocontrol.internal.handler.AccountHandler;
  33 import org.openhab.binding.amazonechocontrol.internal.handler.EchoHandler;
  34 import org.openhab.binding.amazonechocontrol.internal.handler.FlashBriefingProfileHandler;
  35 import org.openhab.binding.amazonechocontrol.internal.handler.SmartHomeDeviceHandler;
  36 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  37 import org.openhab.core.config.discovery.DiscoveryService;
  38 import org.openhab.core.storage.Storage;
  39 import org.openhab.core.storage.StorageService;
  40 import org.openhab.core.thing.Bridge;
  41 import org.openhab.core.thing.Thing;
  42 import org.openhab.core.thing.ThingTypeUID;
  43 import org.openhab.core.thing.ThingUID;
  44 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  45 import org.openhab.core.thing.binding.ThingHandler;
  46 import org.openhab.core.thing.binding.ThingHandlerFactory;
  47 import org.osgi.framework.ServiceRegistration;
  48 import org.osgi.service.component.ComponentContext;
  49 import org.osgi.service.component.annotations.Activate;
  50 import org.osgi.service.component.annotations.Component;
  51 import org.osgi.service.component.annotations.Reference;
  52 import org.osgi.service.http.HttpService;
  53 import org.slf4j.Logger;
  54 import org.slf4j.LoggerFactory;
  55
  56 import com.google.gson.Gson;
  57
  58 /**
  59  * The {@link AmazonEchoControlHandlerFactory} is responsible for creating things and thing
  60  * handlers.
  61  *
  62  * @author Michael Geramb - Initial contribution
  63  */
  64 @Component(service = { ThingHandlerFactory.class,
  65         AmazonEchoControlHandlerFactory.class }, configurationPid = "binding.amazonechocontrol")
  66 @NonNullByDefault
  67 public class AmazonEchoControlHandlerFactory extends BaseThingHandlerFactory {
  68     private final Logger logger = LoggerFactory.getLogger(AmazonEchoControlHandlerFactory.class);
  69     private final Map<ThingUID, @Nullable List<ServiceRegistration<?>>> discoveryServiceRegistrations = new HashMap<>();
  70
  71     private final Set<AccountHandler> accountHandlers = new HashSet<>();
  72     private final HttpService httpService;
  73     private final StorageService storageService;
  74     private final BindingServlet bindingServlet;
  75     private final Gson gson;
  76
  77     @Activate
  78     public AmazonEchoControlHandlerFactory(@Reference HttpService httpService,
  79             @Reference StorageService storageService) {
  80         this.storageService = storageService;
  81         this.httpService = httpService;
  82         this.gson = new Gson();
  83         this.bindingServlet = new BindingServlet(httpService);
  84     }
  85
  86     @Override
  87     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  88         return SUPPORTED_ECHO_THING_TYPES_UIDS.contains(thingTypeUID)
  89                 || SUPPORTED_SMART_HOME_THING_TYPES_UIDS.contains(thingTypeUID);
  90     }
  91
  92     @Override
  93     protected void deactivate(ComponentContext componentContext) {
  94         bindingServlet.dispose();
  95         super.deactivate(componentContext);
  96     }
  97
  98     @Override
  99     protected @Nullable ThingHandler createHandler(Thing thing) {
 100         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
 101
 102         if (thingTypeUID.equals(THING_TYPE_ACCOUNT)) {
 103             Storage<String> storage = storageService.getStorage(thing.getUID().toString(),
 104                     String.class.getClassLoader());
 105             AccountHandler bridgeHandler = new AccountHandler((Bridge) thing, httpService, storage, gson);
 106             accountHandlers.add(bridgeHandler);
 107             registerDiscoveryService(bridgeHandler);
 108             bindingServlet.addAccountThing(thing);
 109             return bridgeHandler;
 110         } else if (thingTypeUID.equals(THING_TYPE_FLASH_BRIEFING_PROFILE)) {
 111             Storage<String> storage = storageService.getStorage(thing.getUID().toString(),
 112                     String.class.getClassLoader());
 113             return new FlashBriefingProfileHandler(thing, storage);
 114         } else if (SUPPORTED_ECHO_THING_TYPES_UIDS.contains(thingTypeUID)) {
 115             return new EchoHandler(thing, gson);
 116         } else if (SUPPORTED_SMART_HOME_THING_TYPES_UIDS.contains(thingTypeUID)) {
 117             return new SmartHomeDeviceHandler(thing, gson);
 118         }
 119         return null;
 120     }
 121
 122     private synchronized void registerDiscoveryService(AccountHandler bridgeHandler) {
 123         List<ServiceRegistration<?>> discoveryServiceRegistration = discoveryServiceRegistrations
 124                 .computeIfAbsent(bridgeHandler.getThing().getUID(), k -> new ArrayList<>());
 125         SmartHomeDevicesDiscovery smartHomeDevicesDiscovery = new SmartHomeDevicesDiscovery(bridgeHandler);
 126         smartHomeDevicesDiscovery.activate();
 127         discoveryServiceRegistration.add(bundleContext.registerService(DiscoveryService.class.getName(),
 128                 smartHomeDevicesDiscovery, new Hashtable<>()));
 129
 130         AmazonEchoDiscovery discoveryService = new AmazonEchoDiscovery(bridgeHandler);
 131         discoveryService.activate();
 132         discoveryServiceRegistration.add(
 133                 bundleContext.registerService(DiscoveryService.class.getName(), discoveryService, new Hashtable<>()));
 134     }
 135
 136     @Override
 137     protected synchronized void removeHandler(ThingHandler thingHandler) {
 138         if (thingHandler instanceof AccountHandler) {
 139             accountHandlers.remove(thingHandler);
 140             BindingServlet bindingServlet = this.bindingServlet;
 141             bindingServlet.removeAccountThing(thingHandler.getThing());
 142
 143             List<ServiceRegistration<?>> discoveryServiceRegistration = discoveryServiceRegistrations
 144                     .remove(thingHandler.getThing().getUID());
 145             if (discoveryServiceRegistration != null) {
 146                 discoveryServiceRegistration.forEach(serviceReg -> {
 147                     AbstractDiscoveryService service = (AbstractDiscoveryService) bundleContext
 148                             .getService(serviceReg.getReference());
 149                     serviceReg.unregister();
 150                     if (service != null) {
 151                         if (service instanceof AmazonEchoDiscovery) {
 152                             ((AmazonEchoDiscovery) service).deactivate();
 153                         } else if (service instanceof SmartHomeDevicesDiscovery) {
 154                             ((SmartHomeDevicesDiscovery) service).deactivate();
 155                         } else {
 156                             logger.warn("Found unknown discovery-service instance: {}", service);
 157                         }
 158                     }
 159                 });
 160             }
 161         }
 162     }
 163
 164     public Set<AccountHandler> getAccountHandlers() {
 165         return accountHandlers;
 166     }
 167 }