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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.icalendar.internal;
  14
  15 import static org.openhab.binding.icalendar.internal.ICalendarBindingConstants.*;
  16
  17 import java.util.Collections;
  18 import java.util.Set;
  19 import java.util.stream.Collectors;
  20 import java.util.stream.Stream;
  21
  22 import org.eclipse.jdt.annotation.NonNullByDefault;
  23 import org.eclipse.jdt.annotation.Nullable;
  24 import org.eclipse.jetty.client.HttpClient;
  25 import org.openhab.binding.icalendar.internal.handler.EventFilterHandler;
  26 import org.openhab.binding.icalendar.internal.handler.ICalendarHandler;
  27 import org.openhab.core.events.EventPublisher;
  28 import org.openhab.core.i18n.TimeZoneProvider;
  29 import org.openhab.core.io.net.http.HttpClientFactory;
  30 import org.openhab.core.thing.Bridge;
  31 import org.openhab.core.thing.Thing;
  32 import org.openhab.core.thing.ThingTypeUID;
  33 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  34 import org.openhab.core.thing.binding.ThingHandler;
  35 import org.openhab.core.thing.binding.ThingHandlerFactory;
  36 import org.osgi.service.component.annotations.Activate;
  37 import org.osgi.service.component.annotations.Component;
  38 import org.osgi.service.component.annotations.Reference;
  39 import org.slf4j.Logger;
  40 import org.slf4j.LoggerFactory;
  41
  42 /**
  43  * The {@link ICalendarHandlerFactory} is responsible for creating things and thing
  44  * handlers.
  45  *
  46  * @author Michael Wodniok - Initial contribution
  47  * @author Andrew Fiddian-Green - EventPublisher code
  48  * @author Michael Wodniok - Added FilteredEvent item type/handler
  49  */
  50 @NonNullByDefault
  51 @Component(configurationPid = "binding.icalendar", service = ThingHandlerFactory.class)
  52 public class ICalendarHandlerFactory extends BaseThingHandlerFactory {
  53
  54     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Stream
  55             .of(Collections.singleton(THING_TYPE_CALENDAR), Collections.singleton(THING_TYPE_FILTERED_EVENTS))
  56             .flatMap(Set::stream).collect(Collectors.toSet());
  57     private final Logger logger = LoggerFactory.getLogger(ICalendarHandlerFactory.class);
  58
  59     private final HttpClient sharedHttpClient;
  60     private final EventPublisher eventPublisher;
  61     private final TimeZoneProvider tzProvider;
  62
  63     @Activate
  64     public ICalendarHandlerFactory(@Reference HttpClientFactory httpClientFactory,
  65             @Reference EventPublisher eventPublisher, @Reference TimeZoneProvider tzProvider) {
  66         this.eventPublisher = eventPublisher;
  67         sharedHttpClient = httpClientFactory.getCommonHttpClient();
  68         this.tzProvider = tzProvider;
  69     }
  70
  71     @Override
  72     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  73         return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  74     }
  75
  76     @Override
  77     protected @Nullable ThingHandler createHandler(Thing thing) {
  78         final ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  79
  80         if (!supportsThingType(thingTypeUID)) {
  81             return null;
  82         }
  83         if (thingTypeUID.equals(THING_TYPE_CALENDAR)) {
  84             if (thing instanceof Bridge) {
  85                 return new ICalendarHandler((Bridge) thing, sharedHttpClient, eventPublisher, tzProvider);
  86             } else {
  87                 logger.warn(
  88                         "The API of iCalendar has changed. You have to recreate the calendar according to the docs.");
  89             }
  90         } else if (thingTypeUID.equals(THING_TYPE_FILTERED_EVENTS)) {
  91             return new EventFilterHandler(thing, tzProvider);
  92         }
  93         return null;
  94     }
  95 }