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