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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.hdpowerview.internal.discovery;
  14
  15 import static org.openhab.binding.hdpowerview.internal.HDPowerViewBindingConstants.*;
  16
  17 import java.util.Collections;
  18 import java.util.Set;
  19
  20 import javax.jmdns.ServiceInfo;
  21
  22 import org.eclipse.jdt.annotation.NonNullByDefault;
  23 import org.eclipse.jdt.annotation.Nullable;
  24 import org.openhab.binding.hdpowerview.internal.config.HDPowerViewHubConfiguration;
  25 import org.openhab.core.config.discovery.DiscoveryResult;
  26 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  27 import org.openhab.core.config.discovery.mdns.MDNSDiscoveryParticipant;
  28 import org.openhab.core.thing.ThingTypeUID;
  29 import org.openhab.core.thing.ThingUID;
  30 import org.osgi.service.component.annotations.Component;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 /**
  35  * Discovers HD PowerView hubs by means of mDNS
  36  *
  37  * @author Andrew Fiddian-Green - Initial contribution
  38  */
  39 @NonNullByDefault
  40 @Component
  41 public class HDPowerViewHubDiscoveryParticipant implements MDNSDiscoveryParticipant {
  42
  43     private static final String LABEL_KEY = "discovery.hub.label";
  44
  45     private final Logger logger = LoggerFactory.getLogger(HDPowerViewHubDiscoveryParticipant.class);
  46
  47     @Override
  48     public Set<ThingTypeUID> getSupportedThingTypeUIDs() {
  49         return Collections.singleton(THING_TYPE_HUB);
  50     }
  51
  52     @Override
  53     public String getServiceType() {
  54         return "_powerview._tcp.local.";
  55     }
  56
  57     @Override
  58     public @Nullable DiscoveryResult createResult(ServiceInfo service) {
  59         for (String host : service.getHostAddresses()) {
  60             if (VALID_IP_V4_ADDRESS.matcher(host).matches()) {
  61                 ThingUID thingUID = new ThingUID(THING_TYPE_HUB, host.replace('.', '_'));
  62                 DiscoveryResult hub = DiscoveryResultBuilder.create(thingUID)
  63                         .withProperty(HDPowerViewHubConfiguration.HOST, host)
  64                         .withRepresentationProperty(HDPowerViewHubConfiguration.HOST)
  65                         .withLabel(String.format("@text/%s [\"%s\"]", LABEL_KEY, host)).build();
  66                 logger.debug("mDNS discovered Gen 1/2 hub on host '{}'", host);
  67                 return hub;
  68             }
  69         }
  70         return null;
  71     }
  72
  73     @Override
  74     public @Nullable ThingUID getThingUID(ServiceInfo service) {
  75         for (String host : service.getHostAddresses()) {
  76             if (VALID_IP_V4_ADDRESS.matcher(host).matches()) {
  77                 return new ThingUID(THING_TYPE_HUB, host.replace('.', '_'));
  78             }
  79         }
  80         return null;
  81     }
  82 }