public class EndlessConsumer implements Runnable
{
private final ExecutorService executor;
+ private final PartitionStatisticsRepository repository;
private final String bootstrapServer;
private final String groupId;
private final String id;
private KafkaConsumer<String, String> consumer = null;
private Future<?> future = null;
- private final Map<TopicPartition, PartitionStatistics> seen = new HashMap<>();
+ private final Map<Integer, Map<String, Integer>> seen = new HashMap<>();
public EndlessConsumer(
ExecutorService executor,
+ PartitionStatisticsRepository repository,
String bootstrapServer,
String groupId,
String clientId,
String autoOffsetReset)
{
this.executor = executor;
+ this.repository = repository;
this.bootstrapServer = bootstrapServer;
this.groupId = groupId;
this.id = clientId;
props.put("bootstrap.servers", bootstrapServer);
props.put("group.id", groupId);
props.put("client.id", id);
+ props.put("enable.auto.commit", false);
props.put("auto.offset.reset", autoOffsetReset);
props.put("metadata.max.age.ms", "1000");
props.put("key.deserializer", StringDeserializer.class.getName());
partitions.forEach(tp ->
{
log.info("{} - removing partition: {}", id, tp);
- PartitionStatistics removed = seen.remove(tp);
- for (KeyCounter counter : removed.getStatistics())
+ Map<String, Integer> removed = seen.remove(tp.partition());
+ for (String key : removed.keySet())
{
log.info(
"{} - Seen {} messages for partition={}|key={}",
id,
- counter.getResult(),
- removed.getPartition(),
- counter.getKey());
+ removed.get(key),
+ tp.partition(),
+ key);
}
+ repository.save(new StatisticsDocument(tp.partition(), removed, consumer.position(tp)));
});
}
partitions.forEach(tp ->
{
log.info("{} - adding partition: {}", id, tp);
- seen.put(tp, new PartitionStatistics(tp));
+ StatisticsDocument document =
+ repository
+ .findById(Integer.toString(tp.partition()))
+ .orElse(new StatisticsDocument(tp.partition()));
+ consumer.seek(tp, document.offset);
+ seen.put(tp.partition(), document.statistics);
});
}
});
record.value()
);
- TopicPartition partition = new TopicPartition(record.topic(), record.partition());
+ Integer partition = record.partition();
String key = record.key() == null ? "NULL" : record.key();
- seen.get(partition).increment(key);
+ Map<String, Integer> byKey = seen.get(partition);
+
+ if (!byKey.containsKey(key))
+ byKey.put(key, 0);
+
+ int seenByKey = byKey.get(key);
+ seenByKey++;
+ byKey.put(key, seenByKey);
}
+
+ seen.forEach((partiton, statistics) -> repository.save(
+ new StatisticsDocument(
+ partiton,
+ statistics,
+ consumer.position(new TopicPartition(topic, partiton)))));
}
}
catch(WakeupException e)
}
}
- public Map<TopicPartition, PartitionStatistics> getSeen()
+ public Map<Integer, Map<String, Integer>> getSeen()
{
return seen;
}