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   1 /**
   2  * Copyright (c) 2010-2020 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.bluetooth.bluez.internal;
  14
  15 import java.util.Collections;
  16 import java.util.HashMap;
  17 import java.util.Hashtable;
  18 import java.util.Map;
  19 import java.util.Set;
  20
  21 import org.openhab.binding.bluetooth.BluetoothAdapter;
  22 import org.openhab.binding.bluetooth.bluez.BlueZAdapterConstants;
  23 import org.openhab.binding.bluetooth.bluez.handler.BlueZBridgeHandler;
  24 import org.openhab.core.thing.Bridge;
  25 import org.openhab.core.thing.Thing;
  26 import org.openhab.core.thing.ThingTypeUID;
  27 import org.openhab.core.thing.ThingUID;
  28 import org.openhab.core.thing.UID;
  29 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  30 import org.openhab.core.thing.binding.ThingHandler;
  31 import org.openhab.core.thing.binding.ThingHandlerFactory;
  32 import org.osgi.framework.ServiceRegistration;
  33 import org.osgi.service.component.annotations.Component;
  34
  35 /**
  36  * The {@link BlueZHandlerFactory} is responsible for creating things and thing
  37  * handlers.
  38  *
  39  * @author Kai Kreuzer - Initial contribution and API
  40  */
  41 @Component(service = ThingHandlerFactory.class, configurationPid = "binding.bluetooth.bluez")
  42 public class BlueZHandlerFactory extends BaseThingHandlerFactory {
  43
  44     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Collections
  45             .singleton(BlueZAdapterConstants.THING_TYPE_BLUEZ);
  46
  47     private final Map<ThingUID, ServiceRegistration<?>> serviceRegs = new HashMap<>();
  48
  49     @Override
  50     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  51         return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  52     }
  53
  54     @Override
  55     protected ThingHandler createHandler(Thing thing) {
  56         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  57
  58         if (thingTypeUID.equals(BlueZAdapterConstants.THING_TYPE_BLUEZ)) {
  59             BlueZBridgeHandler handler = new BlueZBridgeHandler((Bridge) thing);
  60             registerBluetoothAdapter(handler);
  61             return handler;
  62         } else {
  63             return null;
  64         }
  65     }
  66
  67     private synchronized void registerBluetoothAdapter(BluetoothAdapter adapter) {
  68         this.serviceRegs.put(adapter.getUID(),
  69                 bundleContext.registerService(BluetoothAdapter.class.getName(), adapter, new Hashtable<>()));
  70     }
  71
  72     @Override
  73     protected synchronized void removeHandler(ThingHandler thingHandler) {
  74         if (thingHandler instanceof BluetoothAdapter) {
  75             UID uid = ((BluetoothAdapter) thingHandler).getUID();
  76             ServiceRegistration<?> serviceReg = this.serviceRegs.remove(uid);
  77             if (serviceReg != null) {
  78                 serviceReg.unregister();
  79             }
  80         }
  81     }
  82 }