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   1 /**
   2  * Copyright (c) 2010-2024 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.mqtt.homie.generic.internal;
  14
  15 import java.util.Set;
  16
  17 import org.eclipse.jdt.annotation.NonNullByDefault;
  18 import org.eclipse.jdt.annotation.Nullable;
  19 import org.openhab.binding.mqtt.generic.MqttChannelTypeProvider;
  20 import org.openhab.binding.mqtt.generic.TransformationServiceProvider;
  21 import org.openhab.binding.mqtt.homie.internal.handler.HomieThingHandler;
  22 import org.openhab.core.thing.Thing;
  23 import org.openhab.core.thing.ThingTypeUID;
  24 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  25 import org.openhab.core.thing.binding.ThingHandler;
  26 import org.openhab.core.thing.binding.ThingHandlerFactory;
  27 import org.openhab.core.transform.TransformationHelper;
  28 import org.openhab.core.transform.TransformationService;
  29 import org.osgi.service.component.ComponentContext;
  30 import org.osgi.service.component.annotations.Activate;
  31 import org.osgi.service.component.annotations.Component;
  32 import org.osgi.service.component.annotations.Deactivate;
  33 import org.osgi.service.component.annotations.Reference;
  34
  35 /**
  36  * The {@link MqttThingHandlerFactory} is responsible for creating things and thing
  37  * handlers.
  38  *
  39  * @author David Graeff - Initial contribution
  40  */
  41 @Component(service = ThingHandlerFactory.class)
  42 @NonNullByDefault
  43 public class MqttThingHandlerFactory extends BaseThingHandlerFactory implements TransformationServiceProvider {
  44     private @NonNullByDefault({}) MqttChannelTypeProvider typeProvider;
  45     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Set
  46             .of(MqttBindingConstants.HOMIE300_MQTT_THING);
  47
  48     @Override
  49     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  50         return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  51     }
  52
  53     @Activate
  54     @Override
  55     protected void activate(ComponentContext componentContext) {
  56         super.activate(componentContext);
  57     }
  58
  59     @Deactivate
  60     @Override
  61     protected void deactivate(ComponentContext componentContext) {
  62         super.deactivate(componentContext);
  63     }
  64
  65     @Reference
  66     protected void setChannelProvider(MqttChannelTypeProvider provider) {
  67         this.typeProvider = provider;
  68     }
  69
  70     protected void unsetChannelProvider(MqttChannelTypeProvider provider) {
  71         this.typeProvider = null;
  72     }
  73
  74     @Override
  75     protected @Nullable ThingHandler createHandler(Thing thing) {
  76         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  77
  78         if (thingTypeUID.equals(MqttBindingConstants.HOMIE300_MQTT_THING)) {
  79             return new HomieThingHandler(thing, typeProvider, MqttBindingConstants.HOMIE_DEVICE_TIMEOUT_MS,
  80                     MqttBindingConstants.HOMIE_SUBSCRIBE_TIMEOUT_MS, MqttBindingConstants.HOMIE_ATTRIBUTE_TIMEOUT_MS);
  81         }
  82         return null;
  83     }
  84
  85     @Override
  86     public @Nullable TransformationService getTransformationService(String type) {
  87         return TransformationHelper.getTransformationService(bundleContext, type);
  88     }
  89 }