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   1 /**
   2  * Copyright (c) 2010-2022 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.allplay.internal;
  14
  15 import static org.openhab.binding.allplay.internal.AllPlayBindingConstants.SPEAKER_THING_TYPE;
  16
  17 import java.util.Collections;
  18 import java.util.Dictionary;
  19 import java.util.Hashtable;
  20 import java.util.Map;
  21 import java.util.Set;
  22 import java.util.concurrent.ConcurrentHashMap;
  23
  24 import org.openhab.binding.allplay.internal.handler.AllPlayHandler;
  25 import org.openhab.core.audio.AudioHTTPServer;
  26 import org.openhab.core.audio.AudioSink;
  27 import org.openhab.core.net.HttpServiceUtil;
  28 import org.openhab.core.net.NetworkAddressService;
  29 import org.openhab.core.thing.Thing;
  30 import org.openhab.core.thing.ThingRegistry;
  31 import org.openhab.core.thing.ThingTypeUID;
  32 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  33 import org.openhab.core.thing.binding.ThingHandler;
  34 import org.openhab.core.thing.binding.ThingHandlerFactory;
  35 import org.osgi.framework.ServiceRegistration;
  36 import org.osgi.service.component.ComponentContext;
  37 import org.osgi.service.component.annotations.Activate;
  38 import org.osgi.service.component.annotations.Component;
  39 import org.osgi.service.component.annotations.Reference;
  40 import org.slf4j.Logger;
  41 import org.slf4j.LoggerFactory;
  42
  43 import de.kaizencode.tchaikovsky.AllPlay;
  44 import de.kaizencode.tchaikovsky.exception.AllPlayException;
  45
  46 /**
  47  * The {@link AllPlayHandlerFactory} is responsible for creating things and thing
  48  * handlers.
  49  *
  50  * @author Dominic Lerbs - Initial contribution
  51  */
  52 @Component(service = ThingHandlerFactory.class, configurationPid = "binding.allplay")
  53 public class AllPlayHandlerFactory extends BaseThingHandlerFactory {
  54
  55     private final Logger logger = LoggerFactory.getLogger(AllPlayHandlerFactory.class);
  56
  57     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Collections.singleton(SPEAKER_THING_TYPE);
  58     private final Map<String, ServiceRegistration<AudioSink>> audioSinkRegistrations = new ConcurrentHashMap<>();
  59
  60     private AllPlay allPlay;
  61     private AllPlayBindingProperties bindingProperties;
  62
  63     // Bindings should not use the ThingRegistry! See https://github.com/openhab/openhab-addons/pull/6080 and
  64     // https://github.com/eclipse/smarthome/issues/5182
  65     private final ThingRegistry thingRegistry;
  66     private final AudioHTTPServer audioHTTPServer;
  67     private final NetworkAddressService networkAddressService;
  68     private String callbackUrl;
  69
  70     @Activate
  71     public AllPlayHandlerFactory(final @Reference ThingRegistry thingRegistry,
  72             final @Reference AudioHTTPServer audioHTTPServer,
  73             final @Reference NetworkAddressService networkAddressService) {
  74         this.thingRegistry = thingRegistry;
  75         this.audioHTTPServer = audioHTTPServer;
  76         this.networkAddressService = networkAddressService;
  77     }
  78
  79     @Override
  80     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  81         return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  82     }
  83
  84     @Override
  85     protected ThingHandler createHandler(Thing thing) {
  86         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  87         if (thingTypeUID.equals(SPEAKER_THING_TYPE)) {
  88             logger.debug("Creating AllPlayHandler for thing {}", thing.getUID());
  89
  90             AllPlayHandler handler = new AllPlayHandler(thingRegistry, thing, allPlay, bindingProperties);
  91             registerAudioSink(thing, handler);
  92
  93             return handler;
  94         }
  95         return null;
  96     }
  97
  98     private void registerAudioSink(Thing thing, AllPlayHandler handler) {
  99         AllPlayAudioSink audioSink = new AllPlayAudioSink(handler, audioHTTPServer, callbackUrl);
 100         @SuppressWarnings("unchecked")
 101         ServiceRegistration<AudioSink> reg = (ServiceRegistration<AudioSink>) bundleContext
 102                 .registerService(AudioSink.class.getName(), audioSink, new Hashtable<>());
 103         audioSinkRegistrations.put(thing.getUID().toString(), reg);
 104     }
 105
 106     @Override
 107     public void unregisterHandler(Thing thing) {
 108         super.unregisterHandler(thing);
 109         unregisterAudioSink(thing);
 110     }
 111
 112     private void unregisterAudioSink(Thing thing) {
 113         ServiceRegistration<AudioSink> reg = audioSinkRegistrations.get(thing.getUID().toString());
 114         if (reg != null) {
 115             reg.unregister();
 116         }
 117     }
 118
 119     @Override
 120     protected void activate(ComponentContext componentContext) {
 121         super.activate(componentContext);
 122         logger.debug("Activating AllPlayHandlerFactory");
 123         allPlay = new AllPlay("openHAB2");
 124         try {
 125             logger.debug("Connecting to AllPlay");
 126             allPlay.connect();
 127         } catch (AllPlayException e) {
 128             logger.error("Cannot initialize AllPlay", e);
 129         }
 130         Dictionary<String, Object> properties = componentContext.getProperties();
 131         bindingProperties = new AllPlayBindingProperties(properties);
 132         callbackUrl = assembleCallbackUrl();
 133     }
 134
 135     @Override
 136     protected void deactivate(ComponentContext componentContext) {
 137         logger.debug("Deactivating AllPlayHandlerFactory");
 138         allPlay.disconnect();
 139         allPlay = null;
 140         super.deactivate(componentContext);
 141     }
 142
 143     private String assembleCallbackUrl() {
 144         String callbackUrl = bindingProperties.getCallbackUrl();
 145         if (callbackUrl == null) {
 146             String ipAddress = networkAddressService.getPrimaryIpv4HostAddress();
 147             if (ipAddress == null) {
 148                 logger.warn("No network interface could be found.");
 149                 return null;
 150             }
 151             // we do not use SSL as it can cause certificate validation issues.
 152             final int port = HttpServiceUtil.getHttpServicePort(bundleContext);
 153             if (port == -1) {
 154                 logger.warn("Cannot find port of the http service.");
 155                 return null;
 156             }
 157             callbackUrl = "http://" + ipAddress + ":" + port;
 158         }
 159         return callbackUrl;
 160     }
 161 }