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   1 /**
   2  * Copyright (c) 2010-2022 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.harmonyhub.internal;
  14
  15 import java.util.ArrayList;
  16 import java.util.Collection;
  17 import java.util.HashMap;
  18 import java.util.Hashtable;
  19 import java.util.List;
  20 import java.util.Locale;
  21 import java.util.Map;
  22 import java.util.Set;
  23 import java.util.concurrent.CopyOnWriteArrayList;
  24 import java.util.stream.Collectors;
  25 import java.util.stream.Stream;
  26
  27 import org.eclipse.jdt.annotation.NonNullByDefault;
  28 import org.eclipse.jdt.annotation.Nullable;
  29 import org.eclipse.jetty.client.HttpClient;
  30 import org.openhab.binding.harmonyhub.internal.discovery.HarmonyDeviceDiscoveryService;
  31 import org.openhab.binding.harmonyhub.internal.handler.HarmonyDeviceHandler;
  32 import org.openhab.binding.harmonyhub.internal.handler.HarmonyHubHandler;
  33 import org.openhab.core.config.discovery.DiscoveryService;
  34 import org.openhab.core.io.net.http.HttpClientFactory;
  35 import org.openhab.core.thing.Bridge;
  36 import org.openhab.core.thing.Thing;
  37 import org.openhab.core.thing.ThingTypeUID;
  38 import org.openhab.core.thing.ThingUID;
  39 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  40 import org.openhab.core.thing.binding.ThingHandler;
  41 import org.openhab.core.thing.binding.ThingHandlerFactory;
  42 import org.openhab.core.thing.type.ChannelGroupType;
  43 import org.openhab.core.thing.type.ChannelGroupTypeProvider;
  44 import org.openhab.core.thing.type.ChannelGroupTypeUID;
  45 import org.openhab.core.thing.type.ChannelType;
  46 import org.openhab.core.thing.type.ChannelTypeProvider;
  47 import org.openhab.core.thing.type.ChannelTypeUID;
  48 import org.osgi.framework.ServiceRegistration;
  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
  53 /**
  54  * The {@link HarmonyHubHandlerFactory} is responsible for creating things and thing
  55  * handlers.
  56  *
  57  * @author Dan Cunningham - Initial contribution
  58  * @author Wouter Born - Add null annotations
  59  */
  60 @NonNullByDefault
  61 @Component(service = { ThingHandlerFactory.class, ChannelTypeProvider.class,
  62         ChannelGroupTypeProvider.class }, configurationPid = "binding.harmonyhub")
  63 public class HarmonyHubHandlerFactory extends BaseThingHandlerFactory
  64         implements ChannelTypeProvider, ChannelGroupTypeProvider {
  65
  66     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Stream
  67             .concat(HarmonyHubHandler.SUPPORTED_THING_TYPES_UIDS.stream(),
  68                     HarmonyDeviceHandler.SUPPORTED_THING_TYPES_UIDS.stream())
  69             .collect(Collectors.toSet());
  70
  71     private final Map<ThingUID, ServiceRegistration<?>> discoveryServiceRegs = new HashMap<>();
  72     private final HttpClient httpClient;
  73
  74     private final List<ChannelType> channelTypes = new CopyOnWriteArrayList<>();
  75     private final List<ChannelGroupType> channelGroupTypes = new CopyOnWriteArrayList<>();
  76
  77     @Activate
  78     public HarmonyHubHandlerFactory(@Reference final HttpClientFactory httpClientFactory) {
  79         this.httpClient = httpClientFactory.getCommonHttpClient();
  80     }
  81
  82     @Override
  83     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  84         return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  85     }
  86
  87     @Override
  88     protected @Nullable ThingHandler createHandler(Thing thing) {
  89         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  90
  91         if (thingTypeUID.equals(HarmonyHubBindingConstants.HARMONY_HUB_THING_TYPE)) {
  92             HarmonyHubHandler harmonyHubHandler = new HarmonyHubHandler((Bridge) thing, this);
  93             registerHarmonyDeviceDiscoveryService(harmonyHubHandler);
  94             return harmonyHubHandler;
  95         }
  96
  97         if (thingTypeUID.equals(HarmonyHubBindingConstants.HARMONY_DEVICE_THING_TYPE)) {
  98             return new HarmonyDeviceHandler(thing, this);
  99         }
 100
 101         return null;
 102     }
 103
 104     @Override
 105     protected synchronized void removeHandler(ThingHandler thingHandler) {
 106         if (thingHandler instanceof HarmonyHubHandler) {
 107             ServiceRegistration<?> serviceReg = this.discoveryServiceRegs.remove(thingHandler.getThing().getUID());
 108             if (serviceReg != null) {
 109                 serviceReg.unregister();
 110             }
 111         }
 112     }
 113
 114     /**
 115      * Adds HarmonyHubHandler to the discovery service to find Harmony Devices
 116      *
 117      * @param harmonyHubHandler
 118      */
 119     private synchronized void registerHarmonyDeviceDiscoveryService(HarmonyHubHandler harmonyHubHandler) {
 120         HarmonyDeviceDiscoveryService discoveryService = new HarmonyDeviceDiscoveryService(harmonyHubHandler);
 121         this.discoveryServiceRegs.put(harmonyHubHandler.getThing().getUID(),
 122                 bundleContext.registerService(DiscoveryService.class.getName(), discoveryService, new Hashtable<>()));
 123     }
 124
 125     @Override
 126     public Collection<ChannelType> getChannelTypes(@Nullable Locale locale) {
 127         return channelTypes;
 128     }
 129
 130     @Override
 131     public @Nullable ChannelType getChannelType(ChannelTypeUID channelTypeUID, @Nullable Locale locale) {
 132         for (ChannelType channelType : channelTypes) {
 133             if (channelType.getUID().equals(channelTypeUID)) {
 134                 return channelType;
 135             }
 136         }
 137         return null;
 138     }
 139
 140     @Override
 141     public @Nullable ChannelGroupType getChannelGroupType(ChannelGroupTypeUID channelGroupTypeUID,
 142             @Nullable Locale locale) {
 143         for (ChannelGroupType channelGroupType : channelGroupTypes) {
 144             if (channelGroupType.getUID().equals(channelGroupTypeUID)) {
 145                 return channelGroupType;
 146             }
 147         }
 148         return null;
 149     }
 150
 151     @Override
 152     public Collection<ChannelGroupType> getChannelGroupTypes(@Nullable Locale locale) {
 153         return channelGroupTypes;
 154     }
 155
 156     public HttpClient getHttpClient() {
 157         return this.httpClient;
 158     }
 159
 160     public void addChannelType(ChannelType type) {
 161         channelTypes.add(type);
 162     }
 163
 164     public void removeChannelType(ChannelType type) {
 165         channelTypes.remove(type);
 166     }
 167
 168     public void removeChannelTypesForThing(ThingUID uid) {
 169         List<ChannelType> removes = new ArrayList<>();
 170         for (ChannelType c : channelTypes) {
 171             if (c.getUID().getAsString().startsWith(uid.getAsString())) {
 172                 removes.add(c);
 173             }
 174         }
 175         channelTypes.removeAll(removes);
 176     }
 177 }