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/*
* Copyright 2022 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 com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.Producer;
import org.apache.kafka.clients.producer.ProducerRecord;
import org.traccar.config.Config;
import org.traccar.config.Keys;
import java.util.Properties;
public class EventForwarderKafka implements EventForwarder {
private final Producer<String, String> producer;
private final ObjectMapper objectMapper;
private final String topic;
public EventForwarderKafka(Config config, ObjectMapper objectMapper) {
this.objectMapper = objectMapper;
Properties properties = new Properties();
properties.put("bootstrap.servers", config.getString(Keys.EVENT_FORWARD_URL));
properties.put("acks", "all");
properties.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
properties.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");
producer = new KafkaProducer<>(properties);
topic = config.getString(Keys.EVENT_FORWARD_TOPIC);
}
@Override
public void forward(EventData eventData, ResultHandler resultHandler) {
try {
String key = Long.toString(eventData.getDevice().getId());
String value = objectMapper.writeValueAsString(eventData);
producer.send(new ProducerRecord<>(topic, key, value));
resultHandler.onResult(true, null);
} catch (JsonProcessingException e) {
resultHandler.onResult(false, e);
}
}
}
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