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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.millheat.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.millheat.internal.discovery.MillheatDiscoveryService;
  27 import org.openhab.binding.millheat.internal.handler.MillheatAccountHandler;
  28 import org.openhab.binding.millheat.internal.handler.MillheatHeaterHandler;
  29 import org.openhab.binding.millheat.internal.handler.MillheatHomeHandler;
  30 import org.openhab.binding.millheat.internal.handler.MillheatRoomHandler;
  31 import org.openhab.core.config.discovery.DiscoveryService;
  32 import org.openhab.core.io.net.http.HttpClientFactory;
  33 import org.openhab.core.thing.Bridge;
  34 import org.openhab.core.thing.Thing;
  35 import org.openhab.core.thing.ThingTypeUID;
  36 import org.openhab.core.thing.ThingUID;
  37 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  38 import org.openhab.core.thing.binding.ThingHandler;
  39 import org.openhab.core.thing.binding.ThingHandlerFactory;
  40 import org.osgi.framework.ServiceRegistration;
  41 import org.osgi.service.component.annotations.Activate;
  42 import org.osgi.service.component.annotations.Component;
  43 import org.osgi.service.component.annotations.Reference;
  44
  45 /**
  46  * The {@link MillheatHandlerFactory} is responsible for creating things and thing
  47  * handlers.
  48  *
  49  * @author Arne Seime - Initial contribution
  50  */
  51 @NonNullByDefault
  52 @Component(configurationPid = "binding.millheat", service = ThingHandlerFactory.class)
  53 public class MillheatHandlerFactory extends BaseThingHandlerFactory {
  54     private HttpClient httpClient;
  55     private Map<ThingUID, ServiceRegistration<?>> discoveryServiceRegs = new HashMap<>();
  56
  57     public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Collections.unmodifiableSet(Stream
  58             .of(MillheatBindingConstants.THING_TYPE_ACCOUNT, MillheatBindingConstants.THING_TYPE_HEATER,
  59                     MillheatBindingConstants.THING_TYPE_ROOM, MillheatBindingConstants.THING_TYPE_HOME)
  60             .collect(Collectors.toSet()));
  61
  62     @Activate
  63     public MillheatHandlerFactory(@Reference HttpClientFactory httpClientFactory) {
  64         this.httpClient = httpClientFactory.getCommonHttpClient();
  65     }
  66
  67     @Override
  68     protected @Nullable ThingHandler createHandler(final Thing thing) {
  69         final ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  70         if (MillheatBindingConstants.THING_TYPE_HEATER.equals(thingTypeUID)) {
  71             return new MillheatHeaterHandler(thing);
  72         } else if (MillheatBindingConstants.THING_TYPE_ROOM.equals(thingTypeUID)) {
  73             return new MillheatRoomHandler(thing);
  74         } else if (MillheatBindingConstants.THING_TYPE_HOME.equals(thingTypeUID)) {
  75             return new MillheatHomeHandler(thing);
  76         } else if (MillheatBindingConstants.THING_TYPE_ACCOUNT.equals(thingTypeUID)) {
  77             final MillheatAccountHandler handler = new MillheatAccountHandler((Bridge) thing, httpClient,
  78                     bundleContext);
  79             registerDeviceDiscoveryService(handler);
  80             return handler;
  81         }
  82         return null;
  83     }
  84
  85     @Override
  86     protected void removeHandler(ThingHandler thingHandler) {
  87         if (thingHandler instanceof MillheatAccountHandler) {
  88             ThingUID thingUID = thingHandler.getThing().getUID();
  89             unregisterDeviceDiscoveryService(thingUID);
  90         }
  91         super.removeHandler(thingHandler);
  92     }
  93
  94     @Override
  95     public boolean supportsThingType(final ThingTypeUID thingTypeUID) {
  96         return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  97     }
  98
  99     private void registerDeviceDiscoveryService(MillheatAccountHandler bridgeHandler) {
 100         MillheatDiscoveryService discoveryService = new MillheatDiscoveryService(bridgeHandler);
 101         discoveryServiceRegs.put(bridgeHandler.getThing().getUID(),
 102                 bundleContext.registerService(DiscoveryService.class.getName(), discoveryService, new Hashtable<>()));
 103     }
 104
 105     private void unregisterDeviceDiscoveryService(ThingUID thingUID) {
 106         if (discoveryServiceRegs.containsKey(thingUID)) {
 107             ServiceRegistration<?> serviceReg = discoveryServiceRegs.get(thingUID);
 108             serviceReg.unregister();
 109             discoveryServiceRegs.remove(thingUID);
 110         }
 111     }
 112 }