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   1 /**
   2  * Copyright (c) 2010-2024 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.androidtv.internal.discovery;
  14
  15 import static org.openhab.binding.androidtv.internal.AndroidTVBindingConstants.*;
  16
  17 import java.net.InetAddress;
  18 import java.util.Map;
  19 import java.util.Set;
  20
  21 import javax.jmdns.ServiceInfo;
  22
  23 import org.eclipse.jdt.annotation.NonNullByDefault;
  24 import org.eclipse.jdt.annotation.Nullable;
  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  * Implementation of {@link MDNSDiscoveryParticipant} that will discover SHIELDTV(s).
  36  *
  37  * @author Ben Rosenblum - initial contribution
  38  */
  39 @NonNullByDefault
  40 @Component(service = MDNSDiscoveryParticipant.class, immediate = true, configurationPid = "discovery.shieldtv")
  41 public class ShieldTVDiscoveryParticipant implements MDNSDiscoveryParticipant {
  42
  43     private final Logger logger = LoggerFactory.getLogger(ShieldTVDiscoveryParticipant.class);
  44     private static final String SHIELDTV_MDNS_SERVICE_TYPE = "_nv_shield_remote._tcp.local.";
  45
  46     @Override
  47     public Set<ThingTypeUID> getSupportedThingTypeUIDs() {
  48         return SUPPORTED_THING_TYPES;
  49     }
  50
  51     @Override
  52     public String getServiceType() {
  53         return SHIELDTV_MDNS_SERVICE_TYPE;
  54     }
  55
  56     @Override
  57     public @Nullable DiscoveryResult createResult(@Nullable ServiceInfo service) {
  58         if (service == null || !service.hasData()) {
  59             return null;
  60         }
  61
  62         InetAddress[] ipAddresses = service.getInet4Addresses();
  63
  64         if (ipAddresses.length > 0) {
  65             String ipAddress = ipAddresses[0].getHostAddress();
  66             String serverId = service.getPropertyString("SERVER");
  67             String serverCapability = service.getPropertyString("SERVER_CAPABILITY");
  68
  69             if (logger.isDebugEnabled()) {
  70                 String nice = service.getNiceTextString();
  71                 String qualifiedName = service.getQualifiedName();
  72                 logger.debug("ShieldTV mDNS discovery notified of ShieldTV mDNS service: {}", nice);
  73                 logger.trace("ShieldTV mDNS service qualifiedName: {}", qualifiedName);
  74                 logger.trace("ShieldTV mDNS service ipAddresses: {} ({})", ipAddresses, ipAddresses.length);
  75                 logger.trace("ShieldTV mDNS service selected ipAddress: {}", ipAddress);
  76                 logger.trace("ShieldTV mDNS service property SERVER: {}", serverId);
  77                 logger.trace("ShieldTV mDNS service property SERVER_CAPABILITY: {}", serverCapability);
  78             }
  79
  80             final ThingUID uid = getThingUID(service);
  81             if (uid != null) {
  82                 final String id = uid.getId();
  83                 final String label = service.getName() + " (" + id + ")";
  84                 final Map<String, Object> properties = Map.of(PARAMETER_IP_ADDRESS, ipAddress);
  85
  86                 return DiscoveryResultBuilder.create(uid).withProperties(properties).withLabel(label).build();
  87             } else {
  88                 return null;
  89             }
  90         } else {
  91             return null;
  92         }
  93     }
  94
  95     @Override
  96     public @Nullable ThingUID getThingUID(@Nullable ServiceInfo service) {
  97         if (service == null || !service.hasData() || (service.getPropertyString("SERVER") == null)) {
  98             return null;
  99         }
 100
 101         return new ThingUID(THING_TYPE_SHIELDTV, service.getPropertyString("SERVER").substring(8));
 102     }
 103 }