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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.hue.internal.discovery;
  14
  15 import static org.openhab.binding.hue.internal.HueBindingConstants.*;
  16 import static org.openhab.core.thing.Thing.PROPERTY_SERIAL_NUMBER;
  17
  18 import java.io.IOException;
  19 import java.util.Collections;
  20 import java.util.Dictionary;
  21 import java.util.HashMap;
  22 import java.util.Map;
  23 import java.util.Set;
  24
  25 import org.eclipse.jdt.annotation.NonNullByDefault;
  26 import org.eclipse.jdt.annotation.Nullable;
  27 import org.jupnp.model.meta.DeviceDetails;
  28 import org.jupnp.model.meta.ModelDetails;
  29 import org.jupnp.model.meta.RemoteDevice;
  30 import org.openhab.binding.hue.internal.HueBindingConstants;
  31 import org.openhab.core.config.discovery.DiscoveryResult;
  32 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  33 import org.openhab.core.config.discovery.upnp.UpnpDiscoveryParticipant;
  34 import org.openhab.core.config.discovery.upnp.internal.UpnpDiscoveryService;
  35 import org.openhab.core.thing.ThingTypeUID;
  36 import org.openhab.core.thing.ThingUID;
  37 import org.osgi.service.cm.Configuration;
  38 import org.osgi.service.cm.ConfigurationAdmin;
  39 import org.osgi.service.component.annotations.Activate;
  40 import org.osgi.service.component.annotations.Component;
  41 import org.osgi.service.component.annotations.Reference;
  42 import org.slf4j.Logger;
  43 import org.slf4j.LoggerFactory;
  44
  45 /**
  46  * The {@link HueBridgeDiscoveryParticipant} is responsible for discovering new and
  47  * removed hue bridges. It uses the central {@link UpnpDiscoveryService}.
  48  *
  49  * @author Kai Kreuzer - Initial contribution
  50  * @author Thomas Höfer - Added representation
  51  */
  52 @NonNullByDefault
  53 @Component(service = UpnpDiscoveryParticipant.class)
  54 public class HueBridgeDiscoveryParticipant implements UpnpDiscoveryParticipant {
  55
  56     private final Logger logger = LoggerFactory.getLogger(HueBridgeDiscoveryParticipant.class);
  57
  58     // Hue bridges have maxAge 100 seconds, so set the default grace period to half of that
  59     private long removalGracePeriodSeconds = 50;
  60
  61     private final ConfigurationAdmin configAdmin;
  62
  63     @Activate
  64     public HueBridgeDiscoveryParticipant(final @Reference ConfigurationAdmin configAdmin) {
  65         this.configAdmin = configAdmin;
  66     }
  67
  68     @Override
  69     public Set<ThingTypeUID> getSupportedThingTypeUIDs() {
  70         return Collections.singleton(THING_TYPE_BRIDGE);
  71     }
  72
  73     @Override
  74     public @Nullable DiscoveryResult createResult(RemoteDevice device) {
  75         ThingUID uid = getThingUID(device);
  76         if (uid != null) {
  77             Map<String, Object> properties = new HashMap<>();
  78             properties.put(HOST, device.getDetails().getBaseURL().getHost());
  79             properties.put(PORT, device.getDetails().getBaseURL().getPort());
  80             properties.put(PROTOCOL, device.getDetails().getBaseURL().getProtocol());
  81             String serialNumber = device.getDetails().getSerialNumber();
  82             DiscoveryResult result;
  83             if (serialNumber != null && !serialNumber.isBlank()) {
  84                 properties.put(PROPERTY_SERIAL_NUMBER, serialNumber.toLowerCase());
  85
  86                 result = DiscoveryResultBuilder.create(uid).withProperties(properties)
  87                         .withLabel(device.getDetails().getFriendlyName())
  88                         .withRepresentationProperty(PROPERTY_SERIAL_NUMBER).build();
  89             } else {
  90                 result = DiscoveryResultBuilder.create(uid).withProperties(properties)
  91                         .withLabel(device.getDetails().getFriendlyName()).build();
  92             }
  93             return result;
  94         } else {
  95             return null;
  96         }
  97     }
  98
  99     @Override
 100     public @Nullable ThingUID getThingUID(RemoteDevice device) {
 101         DeviceDetails details = device.getDetails();
 102         if (details != null) {
 103             ModelDetails modelDetails = details.getModelDetails();
 104             String serialNumber = details.getSerialNumber();
 105             if (modelDetails != null && serialNumber != null && !serialNumber.isBlank()) {
 106                 String modelName = modelDetails.getModelName();
 107                 if (modelName != null) {
 108                     if (modelName.startsWith("Philips hue bridge")) {
 109                         return new ThingUID(THING_TYPE_BRIDGE, serialNumber.toLowerCase());
 110                     }
 111                 }
 112             }
 113         }
 114         return null;
 115     }
 116
 117     @Override
 118     public long getRemovalGracePeriodSeconds(RemoteDevice device) {
 119         try {
 120             Configuration conf = configAdmin.getConfiguration("binding.hue");
 121             Dictionary<String, @Nullable Object> properties = conf.getProperties();
 122             if (properties != null) {
 123                 Object property = properties.get(HueBindingConstants.REMOVAL_GRACE_PERIOD);
 124                 if (property != null) {
 125                     removalGracePeriodSeconds = Long.parseLong(property.toString());
 126                 }
 127             }
 128         } catch (IOException | IllegalStateException | NumberFormatException e) {
 129             // fall through to pre-initialised (default) value
 130         }
 131         logger.trace("getRemovalGracePeriodSeconds={}", removalGracePeriodSeconds);
 132         return removalGracePeriodSeconds;
 133     }
 134 }