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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.km200.internal;
  14
  15 import java.util.Collections;
  16 import java.util.HashMap;
  17 import java.util.Hashtable;
  18 import java.util.Map;
  19 import java.util.Set;
  20 import java.util.stream.Collectors;
  21 import java.util.stream.Stream;
  22
  23 import org.eclipse.jdt.annotation.NonNullByDefault;
  24 import org.eclipse.jdt.annotation.Nullable;
  25 import org.eclipse.jetty.client.HttpClient;
  26 import org.openhab.binding.km200.internal.discovery.KM200GatewayDiscoveryService;
  27 import org.openhab.binding.km200.internal.handler.KM200GatewayHandler;
  28 import org.openhab.binding.km200.internal.handler.KM200ThingHandler;
  29 import org.openhab.core.config.core.Configuration;
  30 import org.openhab.core.config.discovery.DiscoveryService;
  31 import org.openhab.core.io.net.http.HttpClientFactory;
  32 import org.openhab.core.thing.Bridge;
  33 import org.openhab.core.thing.Thing;
  34 import org.openhab.core.thing.ThingTypeUID;
  35 import org.openhab.core.thing.ThingUID;
  36 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  37 import org.openhab.core.thing.binding.ThingHandler;
  38 import org.openhab.core.thing.binding.ThingHandlerFactory;
  39 import org.osgi.framework.ServiceRegistration;
  40 import org.osgi.service.component.annotations.Activate;
  41 import org.osgi.service.component.annotations.Component;
  42 import org.osgi.service.component.annotations.Reference;
  43 import org.slf4j.Logger;
  44 import org.slf4j.LoggerFactory;
  45
  46 /**
  47  * The {@link KM200HandlerFactory} is responsible for creating things and thing
  48  * handlers.
  49  *
  50  * @author Markus Eckhardt - Initial contribution
  51  */
  52 @NonNullByDefault
  53 @Component(service = ThingHandlerFactory.class, configurationPid = "binding.km200")
  54 public class KM200HandlerFactory extends BaseThingHandlerFactory {
  55
  56     public final Set<ThingTypeUID> SUPPORTED_ALL_THING_TYPES_UIDS = Collections
  57             .unmodifiableSet(Stream.concat(KM200GatewayHandler.SUPPORTED_THING_TYPES_UIDS.stream(),
  58                     KM200ThingHandler.SUPPORTED_THING_TYPES_UIDS.stream()).collect(Collectors.toSet()));
  59
  60     private Map<ThingUID, ServiceRegistration<?>> discoveryServiceRegs = new HashMap<>();
  61
  62     private final Logger logger = LoggerFactory.getLogger(KM200HandlerFactory.class);
  63
  64     private final KM200ChannelTypeProvider channelTypeProvider;
  65
  66     /**
  67      * shared instance of HTTP client for asynchronous calls
  68      */
  69     private final HttpClient httpClient;
  70
  71     @Activate
  72     public KM200HandlerFactory(@Reference HttpClientFactory httpClientFactory,
  73             @Reference KM200ChannelTypeProvider channelTypeProvider) {
  74         this.httpClient = httpClientFactory.getCommonHttpClient();
  75         this.channelTypeProvider = channelTypeProvider;
  76     }
  77
  78     @Override
  79     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  80         return SUPPORTED_ALL_THING_TYPES_UIDS.contains(thingTypeUID);
  81     }
  82
  83     @Override
  84     protected @Nullable Thing createThing(ThingTypeUID thingTypeUID, Configuration configuration, ThingUID thingUID) {
  85         return createThing(thingTypeUID, configuration, thingUID);
  86     }
  87
  88     @Override
  89     protected @Nullable ThingHandler createHandler(Thing thing) {
  90         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  91         if (KM200GatewayHandler.SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID)) {
  92             logger.debug("It's a gataway: {}", thingTypeUID.getAsString());
  93             KM200GatewayHandler gatewayHandler = new KM200GatewayHandler((Bridge) thing, httpClient);
  94             registerKM200GatewayDiscoveryService(gatewayHandler);
  95             return gatewayHandler;
  96         } else if (KM200ThingHandler.SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID)) {
  97             logger.debug("It's a thing: {}", thingTypeUID.getAsString());
  98             return new KM200ThingHandler(thing, channelTypeProvider);
  99         } else {
 100             return null;
 101         }
 102     }
 103
 104     @Override
 105     protected synchronized void removeHandler(ThingHandler thingHandler) {
 106         if (thingHandler instanceof KM200GatewayHandler) {
 107             ServiceRegistration<?> serviceReg = this.discoveryServiceRegs.get(thingHandler.getThing().getUID());
 108             if (serviceReg != null) {
 109                 serviceReg.unregister();
 110             }
 111             discoveryServiceRegs.remove(thingHandler.getThing().getUID());
 112         }
 113     }
 114
 115     /**
 116      * Adds KM200GatewayHandler to the discovery service to find the KMXXX device
 117      *
 118      * @param gatewayHandler
 119      */
 120     private synchronized void registerKM200GatewayDiscoveryService(KM200GatewayHandler gatewayHandler) {
 121         KM200GatewayDiscoveryService discoveryService = new KM200GatewayDiscoveryService(gatewayHandler);
 122         this.discoveryServiceRegs.put(gatewayHandler.getThing().getUID(),
 123                 bundleContext.registerService(DiscoveryService.class.getName(), discoveryService, new Hashtable<>()));
 124     }
 125 }