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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.ipp.internal;
  14
  15 import static org.openhab.binding.ipp.internal.IppBindingConstants.PRINTER_THING_TYPE;
  16
  17 import org.openhab.binding.ipp.internal.handler.IppPrinterHandler;
  18 import org.openhab.core.config.core.Configuration;
  19 import org.openhab.core.config.discovery.DiscoveryServiceRegistry;
  20 import org.openhab.core.thing.Thing;
  21 import org.openhab.core.thing.ThingTypeUID;
  22 import org.openhab.core.thing.ThingUID;
  23 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  24 import org.openhab.core.thing.binding.ThingHandler;
  25 import org.openhab.core.thing.binding.ThingHandlerFactory;
  26 import org.osgi.service.component.annotations.Component;
  27 import org.osgi.service.component.annotations.Reference;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 /**
  32  * The {@link IppHandlerFactory} is responsible for creating things and thing
  33  * handlers.
  34  *
  35  * @author Tobias Braeutigam - Initial contribution
  36  */
  37 @Component(service = ThingHandlerFactory.class, configurationPid = "binding.ipp")
  38 public class IppHandlerFactory extends BaseThingHandlerFactory {
  39     private final Logger logger = LoggerFactory.getLogger(IppHandlerFactory.class);
  40
  41     private DiscoveryServiceRegistry discoveryServiceRegistry;
  42
  43     @Reference
  44     protected void setDiscoveryServiceRegistry(DiscoveryServiceRegistry discoveryServiceRegistry) {
  45         this.discoveryServiceRegistry = discoveryServiceRegistry;
  46     }
  47
  48     protected void unsetDiscoveryServiceRegistry(DiscoveryServiceRegistry discoveryServiceRegistry) {
  49         this.discoveryServiceRegistry = null;
  50     }
  51
  52     @Override
  53     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  54         return IppBindingConstants.SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  55     }
  56
  57     @Override
  58     public Thing createThing(ThingTypeUID thingTypeUID, Configuration configuration, ThingUID thingUID,
  59             ThingUID bridgeUID) {
  60         logger.trace("createThing({},{},{},{})", thingTypeUID, configuration, thingUID, bridgeUID);
  61         if (IppBindingConstants.PRINTER_THING_TYPE.equals(thingTypeUID)) {
  62             ThingUID deviceUID = getIppPrinterUID(thingTypeUID, thingUID, configuration);
  63             logger.debug("creating thing {} from deviceUID: {}", thingTypeUID, deviceUID);
  64             return super.createThing(thingTypeUID, configuration, deviceUID, null);
  65         }
  66         throw new IllegalArgumentException("The thing type {} " + thingTypeUID + " is not supported by the binding.");
  67     }
  68
  69     private ThingUID getIppPrinterUID(ThingTypeUID thingTypeUID, ThingUID thingUID, Configuration configuration) {
  70         if (thingUID == null) {
  71             String name = (String) configuration.get(IppBindingConstants.PRINTER_PARAMETER_NAME);
  72             thingUID = new ThingUID(thingTypeUID, name);
  73         }
  74         return thingUID;
  75     }
  76
  77     @Override
  78     protected ThingHandler createHandler(Thing thing) {
  79         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  80         if (thingTypeUID.equals(PRINTER_THING_TYPE)) {
  81             return new IppPrinterHandler(thing, discoveryServiceRegistry);
  82         }
  83         return null;
  84     }
  85 }