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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.ntp.internal.discovery;
  14
  15 import static org.openhab.binding.ntp.internal.NtpBindingConstants.*;
  16
  17 import java.util.HashMap;
  18 import java.util.Map;
  19 import java.util.concurrent.TimeUnit;
  20
  21 import org.eclipse.jdt.annotation.NonNullByDefault;
  22 import org.eclipse.jdt.annotation.Nullable;
  23 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  24 import org.openhab.core.config.discovery.DiscoveryResult;
  25 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  26 import org.openhab.core.config.discovery.DiscoveryService;
  27 import org.openhab.core.i18n.LocaleProvider;
  28 import org.openhab.core.i18n.TimeZoneProvider;
  29 import org.openhab.core.i18n.TranslationProvider;
  30 import org.openhab.core.thing.ThingUID;
  31 import org.osgi.service.component.annotations.Activate;
  32 import org.osgi.service.component.annotations.Component;
  33 import org.osgi.service.component.annotations.Reference;
  34
  35 /**
  36  *
  37  * The {@link NtpDiscovery} is used to add a ntp Thing for the local time in the discovery inbox
  38  * *
  39  *
  40  * @author Marcel Verpaalen - Initial contribution
  41  */
  42 @NonNullByDefault
  43 @Component(service = DiscoveryService.class, configurationPid = "discovery.ntp")
  44 public class NtpDiscovery extends AbstractDiscoveryService {
  45
  46     private final TimeZoneProvider timeZoneProvider;
  47
  48     @Activate
  49     public NtpDiscovery(final @Reference LocaleProvider localeProvider,
  50             final @Reference TranslationProvider i18nProvider, final @Reference TimeZoneProvider timeZoneProvider,
  51             @Nullable Map<String, Object> configProperties) throws IllegalArgumentException {
  52         super(SUPPORTED_THING_TYPES_UIDS, 2);
  53         this.localeProvider = localeProvider;
  54         this.i18nProvider = i18nProvider;
  55         this.timeZoneProvider = timeZoneProvider;
  56         activate(configProperties);
  57     }
  58
  59     @Override
  60     protected void startBackgroundDiscovery() {
  61         scheduler.schedule(() -> {
  62             discoverNtp();
  63         }, 1, TimeUnit.SECONDS);
  64     }
  65
  66     @Override
  67     protected void startScan() {
  68         discoverNtp();
  69     }
  70
  71     /**
  72      * Add a ntp Thing for the local time in the discovery inbox
  73      */
  74     private void discoverNtp() {
  75         Map<String, Object> properties = new HashMap<>(4);
  76         properties.put(PROPERTY_TIMEZONE, timeZoneProvider.getTimeZone().getId());
  77         ThingUID uid = new ThingUID(THING_TYPE_NTP, "local");
  78         DiscoveryResult result = DiscoveryResultBuilder.create(uid).withProperties(properties).withLabel("Local Time")
  79                 .build();
  80         thingDiscovered(result);
  81     }
  82 }