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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.astro.internal;
  14
  15 import static org.openhab.binding.astro.internal.AstroBindingConstants.*;
  16
  17 import java.util.HashMap;
  18 import java.util.Map;
  19 import java.util.Set;
  20
  21 import org.eclipse.jdt.annotation.NonNullByDefault;
  22 import org.eclipse.jdt.annotation.Nullable;
  23 import org.openhab.binding.astro.internal.handler.AstroThingHandler;
  24 import org.openhab.binding.astro.internal.handler.MoonHandler;
  25 import org.openhab.binding.astro.internal.handler.SunHandler;
  26 import org.openhab.core.i18n.TimeZoneProvider;
  27 import org.openhab.core.scheduler.CronScheduler;
  28 import org.openhab.core.thing.Thing;
  29 import org.openhab.core.thing.ThingTypeUID;
  30 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  31 import org.openhab.core.thing.binding.ThingHandler;
  32 import org.openhab.core.thing.binding.ThingHandlerFactory;
  33 import org.osgi.service.component.annotations.Activate;
  34 import org.osgi.service.component.annotations.Component;
  35 import org.osgi.service.component.annotations.Reference;
  36
  37 /**
  38  * The {@link AstroHandlerFactory} is responsible for creating things and thing handlers.
  39  *
  40  * @author Gerhard Riegler - Initial contribution
  41  */
  42 @NonNullByDefault
  43 @Component(configurationPid = "binding.astro", service = ThingHandlerFactory.class)
  44 public class AstroHandlerFactory extends BaseThingHandlerFactory {
  45
  46     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Set.of(THING_TYPE_SUN, THING_TYPE_MOON);
  47     private static final Map<String, AstroThingHandler> ASTRO_THING_HANDLERS = new HashMap<>();
  48     private final CronScheduler scheduler;
  49     private final TimeZoneProvider timeZoneProvider;
  50
  51     @Activate
  52     public AstroHandlerFactory(final @Reference CronScheduler scheduler,
  53             final @Reference TimeZoneProvider timeZoneProvider) {
  54         this.scheduler = scheduler;
  55         this.timeZoneProvider = timeZoneProvider;
  56     }
  57
  58     @Override
  59     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  60         return SUPPORTED_THING_TYPES.contains(thingTypeUID);
  61     }
  62
  63     @Override
  64     protected @Nullable ThingHandler createHandler(Thing thing) {
  65         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  66         AstroThingHandler thingHandler = null;
  67         if (thingTypeUID.equals(THING_TYPE_SUN)) {
  68             thingHandler = new SunHandler(thing, scheduler, timeZoneProvider);
  69         } else if (thingTypeUID.equals(THING_TYPE_MOON)) {
  70             thingHandler = new MoonHandler(thing, scheduler, timeZoneProvider);
  71         }
  72         if (thingHandler != null) {
  73             ASTRO_THING_HANDLERS.put(thing.getUID().toString(), thingHandler);
  74         }
  75         return thingHandler;
  76     }
  77
  78     @Override
  79     public void unregisterHandler(Thing thing) {
  80         super.unregisterHandler(thing);
  81         ASTRO_THING_HANDLERS.remove(thing.getUID().toString());
  82     }
  83
  84     public static @Nullable AstroThingHandler getHandler(String thingUid) {
  85         return ASTRO_THING_HANDLERS.get(thingUid);
  86     }
  87 }