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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.nanoleaf.internal;
  14
  15 import static org.openhab.binding.nanoleaf.internal.NanoleafBindingConstants.*;
  16
  17 import java.util.Collections;
  18 import java.util.HashMap;
  19 import java.util.Hashtable;
  20 import java.util.Map;
  21 import java.util.Set;
  22 import java.util.stream.Collectors;
  23 import java.util.stream.Stream;
  24
  25 import org.eclipse.jdt.annotation.NonNullByDefault;
  26 import org.eclipse.jdt.annotation.Nullable;
  27 import org.eclipse.jetty.client.HttpClient;
  28 import org.openhab.binding.nanoleaf.internal.discovery.NanoleafPanelsDiscoveryService;
  29 import org.openhab.binding.nanoleaf.internal.handler.NanoleafControllerHandler;
  30 import org.openhab.binding.nanoleaf.internal.handler.NanoleafPanelHandler;
  31 import org.openhab.core.config.discovery.DiscoveryService;
  32 import org.openhab.core.io.net.http.HttpClientFactory;
  33 import org.openhab.core.thing.Bridge;
  34 import org.openhab.core.thing.Thing;
  35 import org.openhab.core.thing.ThingTypeUID;
  36 import org.openhab.core.thing.ThingUID;
  37 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  38 import org.openhab.core.thing.binding.ThingHandler;
  39 import org.openhab.core.thing.binding.ThingHandlerFactory;
  40 import org.osgi.framework.ServiceRegistration;
  41 import org.osgi.service.component.annotations.Activate;
  42 import org.osgi.service.component.annotations.Component;
  43 import org.osgi.service.component.annotations.Reference;
  44 import org.slf4j.Logger;
  45 import org.slf4j.LoggerFactory;
  46
  47 /**
  48  * The {@link NanoleafHandlerFactory} is responsible for creating the controller (bridge)
  49  * and panel (thing) handlers.
  50  *
  51  * @author Martin Raepple - Initial contribution
  52  */
  53 @NonNullByDefault
  54 @Component(configurationPid = "binding.nanoleaf", service = ThingHandlerFactory.class)
  55 public class NanoleafHandlerFactory extends BaseThingHandlerFactory {
  56
  57     public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Collections
  58             .unmodifiableSet(Stream.of(THING_TYPE_LIGHT_PANEL, THING_TYPE_CONTROLLER).collect(Collectors.toSet()));
  59
  60     private final Logger logger = LoggerFactory.getLogger(NanoleafHandlerFactory.class);
  61     private final Map<ThingUID, ServiceRegistration<?>> discoveryServiceRegs = new HashMap<>();
  62     private final HttpClient httpClient;
  63
  64     @Activate
  65     public NanoleafHandlerFactory(@Reference final HttpClientFactory httpClientFactory) {
  66         this.httpClient = httpClientFactory.getCommonHttpClient();
  67     }
  68
  69     @Override
  70     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  71         return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  72     }
  73
  74     @Override
  75     protected @Nullable ThingHandler createHandler(Thing thing) {
  76         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  77
  78         if (THING_TYPE_CONTROLLER.equals(thingTypeUID)) {
  79             NanoleafControllerHandler handler = new NanoleafControllerHandler((Bridge) thing, httpClient);
  80             registerDiscoveryService(handler);
  81             logger.debug("Nanoleaf controller handler created.");
  82             return handler;
  83         } else if (THING_TYPE_LIGHT_PANEL.equals(thingTypeUID)) {
  84             NanoleafPanelHandler handler = new NanoleafPanelHandler(thing, httpClient);
  85             logger.debug("Nanoleaf panel handler created.");
  86             return handler;
  87         }
  88         return null;
  89     }
  90
  91     @Override
  92     protected void removeHandler(ThingHandler thingHandler) {
  93         if (thingHandler instanceof NanoleafControllerHandler) {
  94             unregisterDiscoveryService(thingHandler.getThing());
  95             logger.debug("Nanoleaf controller handler removed.");
  96         }
  97     }
  98
  99     private synchronized void registerDiscoveryService(NanoleafControllerHandler bridgeHandler) {
 100         NanoleafPanelsDiscoveryService discoveryService = new NanoleafPanelsDiscoveryService(bridgeHandler);
 101         discoveryServiceRegs.put(bridgeHandler.getThing().getUID(),
 102                 bundleContext.registerService(DiscoveryService.class.getName(), discoveryService, new Hashtable<>()));
 103         logger.debug("Discovery service for panels registered.");
 104     }
 105
 106     @SuppressWarnings("null")
 107     private synchronized void unregisterDiscoveryService(Thing thing) {
 108         @Nullable
 109         ServiceRegistration<?> serviceReg = discoveryServiceRegs.remove(thing.getUID());
 110         // would require null check but "if (response!=null)" throws warning on comoile time :´-(
 111         if (serviceReg != null) {
 112             serviceReg.unregister();
 113         }
 114         logger.debug("Discovery service for panels removed.");
 115     }
 116 }