import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
+import org.apache.kafka.clients.consumer.ConsumerRebalanceListener;
import org.apache.kafka.common.TopicPartition;
-import java.time.Clock;
-import java.time.Duration;
-import java.time.Instant;
import java.util.Collection;
+import java.util.HashMap;
import java.util.Map;
@RequiredArgsConstructor
@Slf4j
-public class KeyCountingRebalanceListener implements PollIntervalAwareConsumerRebalanceListener
+public class KeyCountingRebalanceListener implements ConsumerRebalanceListener
{
private final KeyCountingRecordHandler handler;
- private final PartitionStatisticsRepository repository;
private final String id;
- private final Clock clock;
- private final Duration commitInterval;
-
- private Instant lastCommit = Instant.EPOCH;
@Override
public void onPartitionsAssigned(Collection<TopicPartition> partitions)
{
Integer partition = tp.partition();
log.info("{} - adding partition: {}", id, partition);
- StatisticsDocument document =
- repository
- .findById(Integer.toString(partition))
- .orElse(new StatisticsDocument(partition));
- handler.addPartition(partition, document.statistics);
+ handler.addPartition(partition, new HashMap<>());
});
}
partition,
key);
}
- repository.save(new StatisticsDocument(partition, removed));
});
}
-
-
- @Override
- public void beforeNextPoll()
- {
- if (lastCommit.plus(commitInterval).isBefore(clock.instant()))
- {
- log.debug("Storing data, last commit: {}", lastCommit);
- handler.getSeen().forEach((partiton, statistics) -> repository.save(
- new StatisticsDocument(
- partiton,
- statistics)));
- lastCommit = clock.instant();
- }
- }
}