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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.openuv.internal.discovery;
  14
  15 import static org.openhab.binding.openuv.internal.OpenUVBindingConstants.*;
  16
  17 import org.eclipse.jdt.annotation.NonNullByDefault;
  18 import org.eclipse.jdt.annotation.Nullable;
  19 import org.openhab.binding.openuv.internal.config.ReportConfiguration;
  20 import org.openhab.binding.openuv.internal.handler.OpenUVBridgeHandler;
  21 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  22 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  23 import org.openhab.core.library.types.PointType;
  24 import org.openhab.core.thing.ThingUID;
  25 import org.openhab.core.thing.binding.ThingHandler;
  26 import org.openhab.core.thing.binding.ThingHandlerService;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 /**
  31  * The {@link OpenUVDiscoveryService} creates things based on the configured location.
  32  *
  33  * @author Gaël L'hopital - Initial Contribution
  34  */
  35 @NonNullByDefault
  36 public class OpenUVDiscoveryService extends AbstractDiscoveryService implements ThingHandlerService {
  37     private final Logger logger = LoggerFactory.getLogger(OpenUVDiscoveryService.class);
  38
  39     private static final int DISCOVER_TIMEOUT_SECONDS = 2;
  40
  41     private @Nullable OpenUVBridgeHandler bridgeHandler;
  42
  43     /**
  44      * Creates a OpenUVDiscoveryService with enabled autostart.
  45      */
  46     public OpenUVDiscoveryService() {
  47         super(SUPPORTED_THING_TYPES_UIDS, DISCOVER_TIMEOUT_SECONDS);
  48     }
  49
  50     @Override
  51     public void setThingHandler(ThingHandler handler) {
  52         if (handler instanceof OpenUVBridgeHandler) {
  53             this.bridgeHandler = (OpenUVBridgeHandler) handler;
  54         }
  55     }
  56
  57     @Override
  58     public @Nullable ThingHandler getThingHandler() {
  59         return bridgeHandler;
  60     }
  61
  62     @Override
  63     public void deactivate() {
  64         super.deactivate();
  65     }
  66
  67     @Override
  68     protected void startScan() {
  69         logger.debug("Starting OpenUV discovery scan");
  70         OpenUVBridgeHandler bridge = bridgeHandler;
  71         if (bridge != null) {
  72             PointType location = bridge.getLocation();
  73             if (location != null) {
  74                 ThingUID bridgeUID = bridge.getThing().getUID();
  75                 thingDiscovered(DiscoveryResultBuilder
  76                         .create(new ThingUID(LOCATION_REPORT_THING_TYPE, bridgeUID, LOCAL))
  77                         .withLabel("@text/discovery.openuv.uvreport.local.label")
  78                         .withProperty(ReportConfiguration.LOCATION, location.toString())
  79                         .withRepresentationProperty(ReportConfiguration.LOCATION).withBridge(bridgeUID).build());
  80             } else {
  81                 logger.debug("LocationProvider.getLocation() is not set -> Will not provide any discovery results");
  82             }
  83         } else {
  84             logger.debug("OpenUV Bridge Handler is not set -> Will not provide any discovery results");
  85         }
  86     }
  87 }