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   1 /**
   2  * Copyright (c) 2010-2023 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.smartmeter.internal;
  14
  15 import static org.openhab.binding.smartmeter.SmartMeterBindingConstants.THING_TYPE_SMLREADER;
  16
  17 import java.util.Set;
  18 import java.util.function.Supplier;
  19
  20 import org.eclipse.jdt.annotation.NonNullByDefault;
  21 import org.eclipse.jdt.annotation.Nullable;
  22 import org.openhab.core.io.transport.serial.SerialPortManager;
  23 import org.openhab.core.thing.Thing;
  24 import org.openhab.core.thing.ThingTypeUID;
  25 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  26 import org.openhab.core.thing.binding.ThingHandler;
  27 import org.openhab.core.thing.binding.ThingHandlerFactory;
  28 import org.osgi.service.component.annotations.Component;
  29 import org.osgi.service.component.annotations.ConfigurationPolicy;
  30 import org.osgi.service.component.annotations.Reference;
  31
  32 /**
  33  * The {@link SmartMeterHandlerFactory} is responsible for creating things and thing
  34  * handlers.
  35  *
  36  * @author Matthias Steigenberger - Initial contribution
  37  */
  38 @Component(service = ThingHandlerFactory.class, configurationPolicy = ConfigurationPolicy.OPTIONAL)
  39 @NonNullByDefault
  40 public class SmartMeterHandlerFactory extends BaseThingHandlerFactory {
  41
  42     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Set.of(THING_TYPE_SMLREADER);
  43     private @NonNullByDefault({}) SmartMeterChannelTypeProvider channelProvider;
  44     private @NonNullByDefault({}) Supplier<SerialPortManager> serialPortManagerSupplier = () -> null;
  45
  46     @Override
  47     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  48         return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  49     }
  50
  51     @Reference
  52     protected void setSmartMeterChannelTypeProvider(SmartMeterChannelTypeProvider provider) {
  53         this.channelProvider = provider;
  54     }
  55
  56     protected void unsetSmartMeterChannelTypeProvider(SmartMeterChannelTypeProvider provider) {
  57         this.channelProvider = null;
  58     }
  59
  60     @Reference
  61     protected void setSerialPortManager(SerialPortManager serialPortManager) {
  62         serialPortManagerSupplier = () -> serialPortManager;
  63     }
  64
  65     protected void unsetSerialPortManager(SerialPortManager serialPortManager) {
  66         this.serialPortManagerSupplier = () -> null;
  67     }
  68
  69     @Override
  70     protected @Nullable ThingHandler createHandler(Thing thing) {
  71         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  72
  73         if (thingTypeUID.equals(THING_TYPE_SMLREADER)) {
  74             return new SmartMeterHandler(thing, channelProvider, serialPortManagerSupplier);
  75         }
  76
  77         return null;
  78     }
  79 }