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/*-
* ============LICENSE_START=======================================================
* dmaap-kafka-client
* ================================================================================
* Copyright (C) 2023 Nordix Foundation. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.dmaap.kafka.sample;
import java.util.List;
import org.apache.kafka.clients.producer.RecordMetadata;
import org.onap.dmaap.kafka.OnapKafkaClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class Main implements CommandLineRunner{
private final Logger log = LoggerFactory.getLogger(OnapKafkaClient.class.getName());
@Autowired
private SampleConfiguration configuration;
public static void main(String[] args) {
SpringApplication.run(Main.class, args);
}
@Override
public void run(String... args) throws InterruptedException {
OnapKafkaClient handler = new OnapKafkaClient(configuration);
String testTopic = configuration.getConsumerTopics().get(0);
for (int i = 0; i < 5; i++) {
RecordMetadata recordMetadata = handler.publishToTopic(testTopic, "dummy-message-"+i);
if (recordMetadata != null) {
log.info("Topic: {}, Partition: {}, Offset: {}", recordMetadata.topic(), recordMetadata.partition(), recordMetadata.offset());
}
}
int fetch = 0;
while (true) {
fetch++;
log.info("Fetch {} from topic: {}", fetch, testTopic);
List<String> res = handler.fetchFromTopic(testTopic);
log.info("Messages from fetch {}: " + res, fetch);
Thread.sleep(3000);
}
}
}
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