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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.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 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.openhab.binding.astro.internal.handler.AstroThingHandler;
  26 import org.openhab.binding.astro.internal.handler.MoonHandler;
  27 import org.openhab.binding.astro.internal.handler.SunHandler;
  28 import org.openhab.core.i18n.TimeZoneProvider;
  29 import org.openhab.core.scheduler.CronScheduler;
  30 import org.openhab.core.thing.Thing;
  31 import org.openhab.core.thing.ThingTypeUID;
  32 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  33 import org.openhab.core.thing.binding.ThingHandler;
  34 import org.openhab.core.thing.binding.ThingHandlerFactory;
  35 import org.osgi.service.component.annotations.Activate;
  36 import org.osgi.service.component.annotations.Component;
  37 import org.osgi.service.component.annotations.Reference;
  38
  39 /**
  40  * The {@link AstroHandlerFactory} is responsible for creating things and thing handlers.
  41  *
  42  * @author Gerhard Riegler - Initial contribution
  43  */
  44 @NonNullByDefault
  45 @Component(configurationPid = "binding.astro", service = ThingHandlerFactory.class)
  46 public class AstroHandlerFactory extends BaseThingHandlerFactory {
  47
  48     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Stream
  49             .concat(SunHandler.SUPPORTED_THING_TYPES.stream(), MoonHandler.SUPPORTED_THING_TYPES.stream())
  50             .collect(Collectors.toSet());
  51     private static final Map<String, AstroThingHandler> ASTRO_THING_HANDLERS = new HashMap<>();
  52     private final CronScheduler scheduler;
  53     private final TimeZoneProvider timeZoneProvider;
  54
  55     @Activate
  56     public AstroHandlerFactory(final @Reference CronScheduler scheduler,
  57             final @Reference TimeZoneProvider timeZoneProvider) {
  58         this.scheduler = scheduler;
  59         this.timeZoneProvider = timeZoneProvider;
  60     }
  61
  62     @Override
  63     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  64         return SUPPORTED_THING_TYPES.contains(thingTypeUID);
  65     }
  66
  67     @Override
  68     protected @Nullable ThingHandler createHandler(Thing thing) {
  69         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  70         AstroThingHandler thingHandler = null;
  71         if (thingTypeUID.equals(THING_TYPE_SUN)) {
  72             thingHandler = new SunHandler(thing, scheduler, timeZoneProvider);
  73         } else if (thingTypeUID.equals(THING_TYPE_MOON)) {
  74             thingHandler = new MoonHandler(thing, scheduler, timeZoneProvider);
  75         }
  76         if (thingHandler != null) {
  77             ASTRO_THING_HANDLERS.put(thing.getUID().toString(), thingHandler);
  78         }
  79         return thingHandler;
  80     }
  81
  82     @Override
  83     public void unregisterHandler(Thing thing) {
  84         super.unregisterHandler(thing);
  85         ASTRO_THING_HANDLERS.remove(thing.getUID().toString());
  86     }
  87
  88     public static @Nullable AstroThingHandler getHandler(String thingUid) {
  89         return ASTRO_THING_HANDLERS.get(thingUid);
  90     }
  91 }