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/*
* Copyright 2022 - 2023 Anton Tananaev (anton@traccar.org)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.traccar.forward;
import org.traccar.config.Config;
import org.traccar.config.Keys;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
public class EventForwarderMqtt implements EventForwarder {
private final MqttClient mqttClient;
private final ObjectMapper objectMapper;
private final String topic;
public EventForwarderMqtt(Config config, ObjectMapper objectMapper) {
this.topic = config.getString(Keys.EVENT_FORWARD_TOPIC);
mqttClient = new MqttClient(config.getString(Keys.FORWARD_URL));
this.objectMapper = objectMapper;
}
@Override
public void forward(EventData eventData, ResultHandler resultHandler) {
String payload;
try {
payload = objectMapper.writeValueAsString(eventData);
mqttClient.publish(topic, payload, (message, e) -> resultHandler.onResult(e == null, e));
} catch (JsonProcessingException e) {
resultHandler.onResult(false, e);
}
}
}
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