git.basschouten.com Git - openhab-addons.git/blob

   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.xmltv.internal.discovery;
  14
  15 import static org.openhab.binding.xmltv.internal.XmlTVBindingConstants.*;
  16
  17 import org.eclipse.jdt.annotation.NonNullByDefault;
  18 import org.eclipse.jdt.annotation.Nullable;
  19 import org.openhab.binding.xmltv.internal.configuration.XmlChannelConfiguration;
  20 import org.openhab.binding.xmltv.internal.handler.XmlTVHandler;
  21 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  22 import org.openhab.core.config.discovery.DiscoveryResult;
  23 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  24 import org.openhab.core.thing.ThingStatus;
  25 import org.openhab.core.thing.ThingUID;
  26 import org.openhab.core.thing.binding.ThingHandler;
  27 import org.openhab.core.thing.binding.ThingHandlerService;
  28 import org.osgi.service.component.annotations.Activate;
  29 import org.osgi.service.component.annotations.Component;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 /**
  34  * The {@link XmlTVDiscoveryService} is responsible for discovering all channels
  35  * declared in the XmlTV file
  36  *
  37  * @author Gaël L'hopital - Initial contribution
  38  */
  39 @Component(service = ThingHandlerService.class)
  40 @NonNullByDefault
  41 public class XmlTVDiscoveryService extends AbstractDiscoveryService implements ThingHandlerService {
  42     private static final int SEARCH_TIME = 5;
  43
  44     private final Logger logger = LoggerFactory.getLogger(XmlTVDiscoveryService.class);
  45     private @Nullable XmlTVHandler handler;
  46
  47     /**
  48      * Creates a XmlTVDiscoveryService with background discovery disabled.
  49      */
  50     @Activate
  51     public XmlTVDiscoveryService() {
  52         super(SUPPORTED_THING_TYPES_UIDS, SEARCH_TIME);
  53     }
  54
  55     @Override
  56     public void deactivate() {
  57         super.deactivate();
  58     }
  59
  60     @Override
  61     protected void startScan() {
  62         logger.debug("Starting XmlTV discovery scan");
  63         XmlTVHandler bridgeHandler = handler;
  64         if (bridgeHandler != null && bridgeHandler.getThing().getStatus() == ThingStatus.ONLINE) {
  65             bridgeHandler.getXmlFile().ifPresent(tv -> {
  66                 tv.getMediaChannels().stream().forEach(channel -> {
  67                     String channelId = channel.getId();
  68                     String uid = channelId.replaceAll("[^A-Za-z0-9_]", "_");
  69                     ThingUID thingUID = new ThingUID(XMLTV_CHANNEL_THING_TYPE, bridgeHandler.getThing().getUID(), uid);
  70
  71                     DiscoveryResult discoveryResult = DiscoveryResultBuilder.create(thingUID)
  72                             .withBridge(bridgeHandler.getThing().getUID())
  73                             .withLabel(channel.getDisplayNames().get(0).getValue()).withRepresentationProperty(uid)
  74                             .withProperty(XmlChannelConfiguration.CHANNEL_ID, channelId).build();
  75
  76                     thingDiscovered(discoveryResult);
  77                 });
  78             });
  79         }
  80     }
  81
  82     @Override
  83     public void setThingHandler(ThingHandler handler) {
  84         if (handler instanceof XmlTVHandler tvHandler) {
  85             this.handler = tvHandler;
  86         }
  87     }
  88
  89     @Override
  90     public @Nullable ThingHandler getThingHandler() {
  91         return handler;
  92     }
  93 }