kafka.entity.changelog.topic.TopicBootstrap Maven / Gradle / Ivy

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package kafka.entity.changelog.topic;

import io.micrometer.core.instrument.Metrics;
import kafka.entity.changelog.schema.Topic;

import static kafka.entity.changelog.schema.Topic.TopicsFound;

public class TopicBootstrap implements Runnable {

  final TopicMetadataSource metadataSource;
  final TopicCommandRepository commandRepository;

  TopicBootstrap(TopicChangelog topicChangelog) {
    this.metadataSource = topicChangelog.metadataSource;
    this.commandRepository = topicChangelog.commandRepository;
  }

  @Override public void run() {
    TopicsFound topicsFound = metadataSource.findTopics();
    if (topicsFound == null) throw new RuntimeException("Error bootstrapping topics");
    commandRepository.put(Topic.Command.newBuilder().setTopicsFound(topicsFound).build());
  }
}