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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
  14 package org.openhab.binding.mqtt.espmilighthub.internal.discovery;
  15
  16 import static org.openhab.binding.mqtt.MqttBindingConstants.BINDING_ID;
  17 import static org.openhab.binding.mqtt.espmilighthub.internal.EspMilightHubBindingConstants.*;
  18
  19 import java.util.HashMap;
  20 import java.util.Map;
  21
  22 import org.eclipse.jdt.annotation.NonNullByDefault;
  23 import org.openhab.binding.mqtt.discovery.AbstractMQTTDiscovery;
  24 import org.openhab.binding.mqtt.discovery.MQTTTopicDiscoveryService;
  25 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  26 import org.openhab.core.config.discovery.DiscoveryService;
  27 import org.openhab.core.io.transport.mqtt.MqttBrokerConnection;
  28 import org.openhab.core.thing.ThingTypeUID;
  29 import org.openhab.core.thing.ThingUID;
  30 import org.osgi.service.component.annotations.Activate;
  31 import org.osgi.service.component.annotations.Component;
  32 import org.osgi.service.component.annotations.Reference;
  33
  34 /**
  35  * The {@link EspMilightHubDiscoveryService} is responsible for finding globes
  36  * and setting them up for the handlers.
  37  *
  38  * @author Matthew Skinner - Initial contribution
  39  */
  40
  41 @Component(service = DiscoveryService.class, configurationPid = "discovery.mqttespmilighthub")
  42 @NonNullByDefault
  43 public class EspMilightHubDiscoveryService extends AbstractMQTTDiscovery {
  44     protected final MQTTTopicDiscoveryService discoveryService;
  45
  46     @Activate
  47     public EspMilightHubDiscoveryService(@Reference MQTTTopicDiscoveryService discoveryService) {
  48         super(SUPPORTED_THING_TYPES, 3, true, STATES_BASE_TOPIC + "#");
  49         this.discoveryService = discoveryService;
  50     }
  51
  52     @Override
  53     protected MQTTTopicDiscoveryService getDiscoveryService() {
  54         return discoveryService;
  55     }
  56
  57     @Override
  58     public void receivedMessage(ThingUID connectionBridge, MqttBrokerConnection connection, String topic,
  59             byte[] payload) {
  60         resetTimeout();
  61         if (topic.startsWith(STATES_BASE_TOPIC)) {
  62             String cutTopic = topic.replace(STATES_BASE_TOPIC, "");
  63             int index = cutTopic.indexOf("/");
  64             if (index != -1) // -1 means "not found"
  65             {
  66                 String remoteCode = (cutTopic.substring(0, index)); // Store the remote code for use later
  67                 cutTopic = topic.replace(STATES_BASE_TOPIC + remoteCode + "/", "");
  68                 index = cutTopic.indexOf("/");
  69                 if (index != -1) {
  70                     String globeType = (cutTopic.substring(0, index));
  71                     String remoteGroupID = (cutTopic.substring(index + 1, index + 2));
  72                     // openHAB's framework has better code for handling groups then the firmware does
  73                     if (!"0".equals(remoteGroupID)) {// Users can manually add group 0 things if they wish
  74                         publishDevice(connectionBridge, connection, topic, remoteCode, globeType, remoteGroupID);
  75                     }
  76                 }
  77             }
  78         }
  79     }
  80
  81     void publishDevice(ThingUID connectionBridge, MqttBrokerConnection connection, String topic, String remoteCode,
  82             String globeType, String remoteGroupID) {
  83         Map<String, Object> properties = new HashMap<>();
  84         properties.put("deviceid", remoteCode + remoteGroupID);
  85         properties.put("basetopic", STATES_BASE_TOPIC + remoteCode + "/" + globeType + "/" + remoteGroupID);
  86         thingDiscovered(DiscoveryResultBuilder
  87                 .create(new ThingUID(new ThingTypeUID(BINDING_ID, globeType), connectionBridge,
  88                         remoteCode + remoteGroupID))
  89                 .withProperties(properties).withRepresentationProperty("deviceid").withBridge(connectionBridge)
  90                 .withLabel("Milight " + globeType).build());
  91     }
  92
  93     @Override
  94     public void topicVanished(ThingUID connectionBridge, MqttBrokerConnection connection, String topic) {
  95     }
  96 }