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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.Collections;
  16 import java.util.HashMap;
  17 import java.util.Map;
  18 import java.util.Set;
  19
  20 import javax.jmdns.ServiceInfo;
  21
  22 import org.openhab.binding.minecraft.internal.MinecraftBindingConstants;
  23 import org.openhab.core.config.discovery.DiscoveryResult;
  24 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  25 import org.openhab.core.config.discovery.mdns.MDNSDiscoveryParticipant;
  26 import org.openhab.core.thing.ThingTypeUID;
  27 import org.openhab.core.thing.ThingUID;
  28 import org.osgi.service.component.annotations.Component;
  29
  30 /**
  31  * The {@link MinecraftMDNSDiscoveryParticipant} is responsible for discovering Minecraft servers
  32  * {@link MDNSDiscoveryService}.
  33  *
  34  * @author Mattias Markehed - Initial contribution
  35  */
  36 @Component
  37 public class MinecraftMDNSDiscoveryParticipant implements MDNSDiscoveryParticipant {
  38
  39     @Override
  40     public Set<ThingTypeUID> getSupportedThingTypeUIDs() {
  41         return Collections.singleton(MinecraftBindingConstants.THING_TYPE_SERVER);
  42     }
  43
  44     @Override
  45     public String getServiceType() {
  46         return "_http._tcp.local.";
  47     }
  48
  49     @Override
  50     public DiscoveryResult createResult(ServiceInfo service) {
  51         if (service.getName().equals("wc-minecraft")) {
  52             ThingUID uid = getThingUID(service);
  53
  54             if (uid != null) {
  55                 Map<String, Object> properties = new HashMap<>();
  56                 int port = service.getPort();
  57                 String host = service.getInetAddresses()[0].getHostAddress();
  58
  59                 properties.put(MinecraftBindingConstants.PARAMETER_HOSTNAME, host);
  60                 properties.put(MinecraftBindingConstants.PARAMETER_PORT, port);
  61
  62                 return DiscoveryResultBuilder.create(uid).withProperties(properties)
  63                         .withRepresentationProperty(uid.getId()).withLabel("Minecraft Server (" + host + ")").build();
  64             }
  65         }
  66         return null;
  67     }
  68
  69     /**
  70      * Check if service is a minecraft server.
  71      *
  72      * @param service the service to check.
  73      * @return true if minecraft server, else false.
  74      */
  75     private boolean isMinecraftServer(ServiceInfo service) {
  76         return (service != null && service.getType() != null && service.getType().equals(getServiceType()));
  77     }
  78
  79     @Override
  80     public ThingUID getThingUID(ServiceInfo service) {
  81         if (isMinecraftServer(service) && service.getInetAddresses().length > 0) {
  82             String host = service.getInetAddresses()[0].getHostAddress();
  83             host = host.replace('.', '_');
  84
  85             return new ThingUID(MinecraftBindingConstants.THING_TYPE_SERVER, host);
  86         }
  87
  88         return null;
  89     }
  90 }