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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.minecraft.internal.discovery;
  14
  15 import java.util.HashMap;
  16 import java.util.Map;
  17 import java.util.Set;
  18
  19 import javax.jmdns.ServiceInfo;
  20
  21 import org.openhab.binding.minecraft.internal.MinecraftBindingConstants;
  22 import org.openhab.core.config.discovery.DiscoveryResult;
  23 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  24 import org.openhab.core.config.discovery.mdns.MDNSDiscoveryParticipant;
  25 import org.openhab.core.thing.ThingTypeUID;
  26 import org.openhab.core.thing.ThingUID;
  27 import org.osgi.service.component.annotations.Component;
  28
  29 /**
  30  * The {@link MinecraftMDNSDiscoveryParticipant} is responsible for discovering Minecraft servers
  31  * {@link MDNSDiscoveryService}.
  32  *
  33  * @author Mattias Markehed - Initial contribution
  34  */
  35 @Component
  36 public class MinecraftMDNSDiscoveryParticipant implements MDNSDiscoveryParticipant {
  37
  38     @Override
  39     public Set<ThingTypeUID> getSupportedThingTypeUIDs() {
  40         return Set.of(MinecraftBindingConstants.THING_TYPE_SERVER);
  41     }
  42
  43     @Override
  44     public String getServiceType() {
  45         return "_http._tcp.local.";
  46     }
  47
  48     @Override
  49     public DiscoveryResult createResult(ServiceInfo service) {
  50         if ("wc-minecraft".equals(service.getName())) {
  51             ThingUID uid = getThingUID(service);
  52
  53             if (uid != null) {
  54                 Map<String, Object> properties = new HashMap<>();
  55                 int port = service.getPort();
  56                 String host = service.getInetAddresses()[0].getHostAddress();
  57
  58                 properties.put(MinecraftBindingConstants.PARAMETER_HOSTNAME, host);
  59                 properties.put(MinecraftBindingConstants.PARAMETER_PORT, port);
  60
  61                 return DiscoveryResultBuilder.create(uid).withProperties(properties)
  62                         .withRepresentationProperty(uid.getId()).withLabel("Minecraft Server (" + host + ")").build();
  63             }
  64         }
  65         return null;
  66     }
  67
  68     /**
  69      * Check if service is a minecraft server.
  70      *
  71      * @param service the service to check.
  72      * @return true if minecraft server, else false.
  73      */
  74     private boolean isMinecraftServer(ServiceInfo service) {
  75         return (service != null && service.getType() != null && service.getType().equals(getServiceType()));
  76     }
  77
  78     @Override
  79     public ThingUID getThingUID(ServiceInfo service) {
  80         if (isMinecraftServer(service) && service.getInetAddresses().length > 0) {
  81             String host = service.getInetAddresses()[0].getHostAddress();
  82             host = host.replace('.', '_');
  83
  84             return new ThingUID(MinecraftBindingConstants.THING_TYPE_SERVER, host);
  85         }
  86
  87         return null;
  88     }
  89 }