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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.rfxcom.internal;
  14
  15 import java.util.HashMap;
  16 import java.util.Hashtable;
  17 import java.util.Map;
  18 import java.util.Set;
  19 import java.util.stream.Collectors;
  20 import java.util.stream.Stream;
  21
  22 import org.eclipse.jdt.annotation.NonNullByDefault;
  23 import org.eclipse.jdt.annotation.Nullable;
  24 import org.openhab.binding.rfxcom.internal.discovery.RFXComDeviceDiscoveryService;
  25 import org.openhab.binding.rfxcom.internal.handler.RFXComBridgeHandler;
  26 import org.openhab.binding.rfxcom.internal.handler.RFXComHandler;
  27 import org.openhab.core.config.discovery.DiscoveryService;
  28 import org.openhab.core.io.transport.serial.SerialPortManager;
  29 import org.openhab.core.thing.Bridge;
  30 import org.openhab.core.thing.Thing;
  31 import org.openhab.core.thing.ThingTypeUID;
  32 import org.openhab.core.thing.ThingUID;
  33 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  34 import org.openhab.core.thing.binding.ThingHandler;
  35 import org.openhab.core.thing.binding.ThingHandlerFactory;
  36 import org.osgi.framework.ServiceRegistration;
  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
  41 /**
  42  * The {@link RFXComHandlerFactory} is responsible for creating things and thing
  43  * handlers.
  44  *
  45  * @author Pauli Anttila - Initial contribution
  46  */
  47 @NonNullByDefault
  48 @Component(service = ThingHandlerFactory.class, configurationPid = "binding.rfxcom")
  49 public class RFXComHandlerFactory extends BaseThingHandlerFactory {
  50
  51     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Stream
  52             .concat(RFXComBindingConstants.SUPPORTED_DEVICE_THING_TYPES_UIDS.stream(),
  53                     RFXComBindingConstants.SUPPORTED_BRIDGE_THING_TYPES_UIDS.stream())
  54             .collect(Collectors.toSet());
  55
  56     /**
  57      * Service registration map
  58      */
  59     private final Map<ThingUID, ServiceRegistration<?>> discoveryServiceRegs = new HashMap<>();
  60
  61     private final SerialPortManager serialPortManager;
  62
  63     @Activate
  64     public RFXComHandlerFactory(final @Reference SerialPortManager serialPortManager) {
  65         this.serialPortManager = serialPortManager;
  66     }
  67
  68     @Override
  69     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  70         return SUPPORTED_THING_TYPES.contains(thingTypeUID);
  71     }
  72
  73     @Override
  74     protected @Nullable ThingHandler createHandler(Thing thing) {
  75         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  76
  77         if (RFXComBindingConstants.SUPPORTED_BRIDGE_THING_TYPES_UIDS.contains(thingTypeUID)) {
  78             RFXComBridgeHandler handler = new RFXComBridgeHandler((Bridge) thing, serialPortManager);
  79             registerDeviceDiscoveryService(handler);
  80             return handler;
  81         } else if (supportsThingType(thingTypeUID)) {
  82             return new RFXComHandler(thing);
  83         }
  84
  85         return null;
  86     }
  87
  88     @Override
  89     protected void removeHandler(ThingHandler thingHandler) {
  90         if (thingHandler instanceof RFXComBridgeHandler) {
  91             unregisterDeviceDiscoveryService(thingHandler.getThing());
  92         }
  93     }
  94
  95     private synchronized void registerDeviceDiscoveryService(RFXComBridgeHandler handler) {
  96         RFXComDeviceDiscoveryService discoveryService = new RFXComDeviceDiscoveryService(handler);
  97         discoveryService.activate();
  98         this.discoveryServiceRegs.put(handler.getThing().getUID(),
  99                 bundleContext.registerService(DiscoveryService.class.getName(), discoveryService, new Hashtable<>()));
 100     }
 101
 102     private synchronized void unregisterDeviceDiscoveryService(Thing thing) {
 103         ServiceRegistration<?> serviceReg = discoveryServiceRegs.remove(thing.getUID());
 104         if (serviceReg != null) {
 105             RFXComDeviceDiscoveryService service = (RFXComDeviceDiscoveryService) bundleContext
 106                     .getService(serviceReg.getReference());
 107             serviceReg.unregister();
 108             if (service != null) {
 109                 service.deactivate();
 110             }
 111         }
 112     }
 113 }