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[mqtt.homeassistant] Add support for Event component (openhab#17599)
Signed-off-by: Cody Cutrer <cody@cutrer.us>
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116 changes: 116 additions & 0 deletions
116
...istant/src/main/java/org/openhab/binding/mqtt/homeassistant/internal/component/Event.java
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| /** | ||
| * Copyright (c) 2010-2024 Contributors to the openHAB project | ||
| * | ||
| * See the NOTICE file(s) distributed with this work for additional | ||
| * information. | ||
| * | ||
| * This program and the accompanying materials are made available under the | ||
| * terms of the Eclipse Public License 2.0 which is available at | ||
| * http://www.eclipse.org/legal/epl-2.0 | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| */ | ||
| package org.openhab.binding.mqtt.homeassistant.internal.component; | ||
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
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| import org.eclipse.jdt.annotation.NonNullByDefault; | ||
| import org.eclipse.jdt.annotation.Nullable; | ||
| import org.openhab.binding.mqtt.generic.ChannelStateUpdateListener; | ||
| import org.openhab.binding.mqtt.generic.values.TextValue; | ||
| import org.openhab.binding.mqtt.homeassistant.internal.ComponentChannelType; | ||
| import org.openhab.binding.mqtt.homeassistant.internal.HomeAssistantChannelTransformation; | ||
| import org.openhab.binding.mqtt.homeassistant.internal.config.dto.AbstractChannelConfiguration; | ||
| import org.openhab.core.thing.ChannelUID; | ||
| import org.openhab.core.types.Command; | ||
| import org.openhab.core.types.State; | ||
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| import com.google.gson.annotations.SerializedName; | ||
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| /** | ||
| * A MQTT Event, following the https://www.home-assistant.io/integrations/event.mqttspecification. | ||
| * | ||
| * @author Cody Cutrer - Initial contribution | ||
| */ | ||
| @NonNullByDefault | ||
| public class Event extends AbstractComponent<Event.ChannelConfiguration> implements ChannelStateUpdateListener { | ||
| public static final String EVENT_TYPE_CHANNEL_ID = "event-type"; | ||
| public static final String JSON_ATTRIBUTES_CHANNEL_ID = "json-attributes"; | ||
| private static final String EVENT_TYPE_TRANFORMATION = "{{ value_json.event_type }}"; | ||
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| /** | ||
| * Configuration class for MQTT component | ||
| */ | ||
| public static class ChannelConfiguration extends AbstractChannelConfiguration { | ||
| ChannelConfiguration() { | ||
| super("MQTT Event"); | ||
| } | ||
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| @SerializedName("state_topic") | ||
| protected String stateTopic = ""; | ||
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| @SerializedName("event_types") | ||
| protected List<String> eventTypes = new ArrayList(); | ||
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| @SerializedName("json_attributes_topic") | ||
| protected @Nullable String jsonAttributesTopic; | ||
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| @SerializedName("json_attributes_template") | ||
| protected @Nullable String jsonAttributesTemplate; | ||
| } | ||
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| private final HomeAssistantChannelTransformation transformation; | ||
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| public Event(ComponentFactory.ComponentConfiguration componentConfiguration, boolean newStyleChannels) { | ||
| super(componentConfiguration, ChannelConfiguration.class, newStyleChannels); | ||
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| transformation = new HomeAssistantChannelTransformation(getJinjava(), this, ""); | ||
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| buildChannel(EVENT_TYPE_CHANNEL_ID, ComponentChannelType.TRIGGER, new TextValue(), getName(), this) | ||
| .stateTopic(channelConfiguration.stateTopic, channelConfiguration.getValueTemplate()).trigger(true) | ||
| .build(); | ||
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| if (channelConfiguration.jsonAttributesTopic != null) { | ||
| // It's unclear from the documentation if the JSON attributes value is expected | ||
| // to be the same as the main topic, and thus would always have an event_type | ||
| // attribute (and thus could possibly be shared with multiple components). | ||
| // If that were the case, we would need to intercept events, and check that they | ||
| // had an event_type that is in channelConfiguration.eventTypes. If/when that | ||
| // becomes an issue, change `channelStateUpdateListener` to `this`, and handle | ||
| // the filtering below. | ||
| buildChannel(JSON_ATTRIBUTES_CHANNEL_ID, ComponentChannelType.TRIGGER, new TextValue(), getName(), | ||
| componentConfiguration.getUpdateListener()) | ||
| .stateTopic(channelConfiguration.jsonAttributesTopic, channelConfiguration.jsonAttributesTemplate) | ||
| .trigger(true).build(); | ||
| } | ||
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| finalizeChannels(); | ||
| } | ||
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| @Override | ||
| public void triggerChannel(ChannelUID channel, String event) { | ||
| String eventType = transformation.apply(EVENT_TYPE_TRANFORMATION, event).orElse(null); | ||
| if (eventType == null) { | ||
| // Warning logged from inside the transformation | ||
| return; | ||
| } | ||
| // The TextValue allows anything, because it receives the full JSON, and | ||
| // we don't check the actual event_type against valid event_types until here | ||
| if (!channelConfiguration.eventTypes.contains(eventType)) { | ||
| return; | ||
| } | ||
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| componentConfiguration.getUpdateListener().triggerChannel(channel, eventType); | ||
| } | ||
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| @Override | ||
| public void updateChannelState(ChannelUID channel, State state) { | ||
| // N/A (only trigger channels) | ||
| } | ||
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| @Override | ||
| public void postChannelCommand(ChannelUID channel, Command command) { | ||
| // N/A (only trigger channels) | ||
| } | ||
| } |
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89 changes: 89 additions & 0 deletions
89
...t/src/test/java/org/openhab/binding/mqtt/homeassistant/internal/component/EventTests.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,89 @@ | ||
| /** | ||
| * Copyright (c) 2010-2024 Contributors to the openHAB project | ||
| * | ||
| * See the NOTICE file(s) distributed with this work for additional | ||
| * information. | ||
| * | ||
| * This program and the accompanying materials are made available under the | ||
| * terms of the Eclipse Public License 2.0 which is available at | ||
| * http://www.eclipse.org/legal/epl-2.0 | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| */ | ||
| package org.openhab.binding.mqtt.homeassistant.internal.component; | ||
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| import static org.hamcrest.CoreMatchers.is; | ||
| import static org.hamcrest.MatcherAssert.assertThat; | ||
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| import java.util.Set; | ||
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| import org.eclipse.jdt.annotation.NonNullByDefault; | ||
| import org.junit.jupiter.api.Test; | ||
| import org.openhab.binding.mqtt.generic.values.TextValue; | ||
|
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| /** | ||
| * Tests for {@link Event} | ||
| * | ||
| * @author Cody Cutrer - Initial contribution | ||
| */ | ||
| @NonNullByDefault | ||
| public class EventTests extends AbstractComponentTests { | ||
| public static final String CONFIG_TOPIC = "event/doorbell/action"; | ||
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| @SuppressWarnings("null") | ||
| @Test | ||
| public void test() throws InterruptedException { | ||
| var component = discoverComponent(configTopicToMqtt(CONFIG_TOPIC), """ | ||
| { | ||
| "event_types": [ | ||
| "press", | ||
| "release" | ||
| ], | ||
| "state_topic": "zigbee2mqtt/doorbell/action" | ||
| } | ||
| """); | ||
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| assertThat(component.channels.size(), is(1)); | ||
| assertThat(component.getName(), is("MQTT Event")); | ||
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| assertChannel(component, "event-type", "zigbee2mqtt/doorbell/action", "", "MQTT Event", TextValue.class); | ||
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| publishMessage("zigbee2mqtt/doorbell/action", "{ \"event_type\": \"press\" }"); | ||
| assertTriggered(component, "event-type", "press"); | ||
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| publishMessage("zigbee2mqtt/doorbell/action", "{ \"event_type\": \"release\" }"); | ||
| assertTriggered(component, "event-type", "release"); | ||
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| publishMessage("zigbee2mqtt/doorbell/action", "{ \"event_type\": \"else\" }"); | ||
| assertNotTriggered(component, "event-type", "else"); | ||
| } | ||
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| @SuppressWarnings("null") | ||
| @Test | ||
| public void testJsonAttributes() throws InterruptedException { | ||
| var component = discoverComponent(configTopicToMqtt(CONFIG_TOPIC), """ | ||
| { | ||
| "event_types": [ | ||
| "press", | ||
| "release" | ||
| ], | ||
| "state_topic": "zigbee2mqtt/doorbell/action", | ||
| "json_attributes_topic": "zigbee2mqtt/doorbell/action" | ||
| } | ||
| """); | ||
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| assertThat(component.channels.size(), is(2)); | ||
| assertThat(component.getName(), is("MQTT Event")); | ||
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| assertChannel(component, "event-type", "zigbee2mqtt/doorbell/action", "", "MQTT Event", TextValue.class); | ||
| assertChannel(component, "json-attributes", "zigbee2mqtt/doorbell/action", "", "MQTT Event", TextValue.class); | ||
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| publishMessage("zigbee2mqtt/doorbell/action", "{ \"event_type\": \"press\" }"); | ||
| assertTriggered(component, "json-attributes", "{ \"event_type\": \"press\" }"); | ||
| } | ||
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| @Override | ||
| protected Set<String> getConfigTopics() { | ||
| return Set.of(CONFIG_TOPIC); | ||
| } | ||
| } |