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   1 /**
   2  * Copyright (c) 2010-2021 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.logreader.internal;
  14
  15 import static org.openhab.binding.logreader.internal.LogReaderBindingConstants.THING_READER;
  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.openhab.binding.logreader.internal.filereader.FileTailer;
  25 import org.openhab.binding.logreader.internal.handler.LogHandler;
  26 import org.openhab.core.thing.Thing;
  27 import org.openhab.core.thing.ThingTypeUID;
  28 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  29 import org.openhab.core.thing.binding.ThingHandler;
  30 import org.openhab.core.thing.binding.ThingHandlerFactory;
  31 import org.osgi.service.component.annotations.Component;
  32
  33 /**
  34  * The {@link LogReaderHandlerFactory} is responsible for creating things and thing
  35  * handlers.
  36  *
  37  * @author Miika Jukka - Initial contribution
  38  */
  39 @Component(service = ThingHandlerFactory.class, configurationPid = "binding.logreader")
  40 @NonNullByDefault
  41 public class LogReaderHandlerFactory extends BaseThingHandlerFactory {
  42
  43     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Collections
  44             .unmodifiableSet(Stream.of(THING_READER).collect(Collectors.toSet()));
  45
  46     @Override
  47     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  48         return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  49     }
  50
  51     @Override
  52     protected @Nullable ThingHandler createHandler(Thing thing) {
  53         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  54
  55         if (thingTypeUID.equals(THING_READER)) {
  56             return new LogHandler(thing, new FileTailer());
  57         }
  58
  59         return null;
  60     }
  61 }