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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.mqtt.homeassistant.internal.component;
  14
  15 import org.eclipse.jdt.annotation.NonNullByDefault;
  16 import org.eclipse.jdt.annotation.Nullable;
  17 import org.openhab.binding.mqtt.generic.values.TextValue;
  18 import org.openhab.binding.mqtt.homeassistant.internal.config.dto.AbstractChannelConfiguration;
  19
  20 import com.google.gson.annotations.SerializedName;
  21
  22 /**
  23  * An MQTT button, following the https://www.home-assistant.io/integrations/button.mqtt/ specification.
  24  *
  25  * @author Cody Cutrer - Initial contribution
  26  */
  27 @NonNullByDefault
  28 public class Button extends AbstractComponent<Button.ChannelConfiguration> {
  29     public static final String BUTTON_CHANNEL_ID = "button";
  30
  31     /**
  32      * Configuration class for MQTT component
  33      */
  34     static class ChannelConfiguration extends AbstractChannelConfiguration {
  35         ChannelConfiguration() {
  36             super("MQTT Button");
  37         }
  38
  39         protected @Nullable Boolean optimistic;
  40
  41         @SerializedName("command_topic")
  42         protected @Nullable String commandTopic;
  43
  44         @SerializedName("payload_press")
  45         protected String payloadPress = "PRESS";
  46     }
  47
  48     public Button(ComponentFactory.ComponentConfiguration componentConfiguration) {
  49         super(componentConfiguration, ChannelConfiguration.class);
  50
  51         TextValue value = new TextValue(new String[] { channelConfiguration.payloadPress });
  52
  53         buildChannel(BUTTON_CHANNEL_ID, value, getName(), componentConfiguration.getUpdateListener())
  54                 .commandTopic(channelConfiguration.commandTopic, channelConfiguration.isRetain(),
  55                         channelConfiguration.getQos())
  56                 .build();
  57     }
  58 }