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Offset-Position in der MongoDB wird vor jedem `poll()` aktualisiert
[demos/kafka/training]
/
src
/
main
/
java
/
de
/
juplo
/
kafka
/
EndlessConsumer.java
diff --git
a/src/main/java/de/juplo/kafka/EndlessConsumer.java
b/src/main/java/de/juplo/kafka/EndlessConsumer.java
index
be371ae
..
b152310
100644
(file)
--- a/
src/main/java/de/juplo/kafka/EndlessConsumer.java
+++ b/
src/main/java/de/juplo/kafka/EndlessConsumer.java
@@
-22,6
+22,7
@@
import java.util.concurrent.atomic.AtomicBoolean;
public class EndlessConsumer implements Runnable
{
private final ExecutorService executor;
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 final String bootstrapServer;
private final String groupId;
private final String id;
@@
-33,11
+34,12
@@
public class EndlessConsumer implements Runnable
private KafkaConsumer<String, String> consumer = null;
private Future<?> future = null;
private KafkaConsumer<String, String> consumer = null;
private Future<?> future = null;
- private final Map<
Integer, Map<String, Integer>
> seen = new HashMap<>();
+ private final Map<
TopicPartition, PartitionStatistics
> seen = new HashMap<>();
public EndlessConsumer(
ExecutorService executor,
public EndlessConsumer(
ExecutorService executor,
+ PartitionStatisticsRepository repository,
String bootstrapServer,
String groupId,
String clientId,
String bootstrapServer,
String groupId,
String clientId,
@@
-45,6
+47,7
@@
public class EndlessConsumer implements Runnable
String autoOffsetReset)
{
this.executor = executor;
String autoOffsetReset)
{
this.executor = executor;
+ this.repository = repository;
this.bootstrapServer = bootstrapServer;
this.groupId = groupId;
this.id = clientId;
this.bootstrapServer = bootstrapServer;
this.groupId = groupId;
this.id = clientId;
@@
-61,6
+64,7
@@
public class EndlessConsumer implements Runnable
props.put("bootstrap.servers", bootstrapServer);
props.put("group.id", groupId);
props.put("client.id", id);
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());
props.put("auto.offset.reset", autoOffsetReset);
props.put("metadata.max.age.ms", "1000");
props.put("key.deserializer", StringDeserializer.class.getName());
@@
-77,16
+81,17
@@
public class EndlessConsumer implements Runnable
partitions.forEach(tp ->
{
log.info("{} - removing partition: {}", id, tp);
partitions.forEach(tp ->
{
log.info("{} - removing partition: {}", id, tp);
-
Map<String, Integer> removed = seen.remove(tp.partition()
);
- for (
String key : removed.keySet
())
+
PartitionStatistics removed = seen.remove(tp
);
+ for (
KeyCounter counter : removed.getStatistics
())
{
log.info(
"{} - Seen {} messages for partition={}|key={}",
id,
{
log.info(
"{} - Seen {} messages for partition={}|key={}",
id,
-
removed.get(key
),
- removed,
-
key
);
+
counter.getResult(
),
+ removed
.getPartition()
,
+
counter.getKey()
);
}
}
+ repository.save(new StatisticsDocument(removed, consumer.position(tp)));
});
}
});
}
@@
-96,7
+101,12
@@
public class EndlessConsumer implements Runnable
partitions.forEach(tp ->
{
log.info("{} - adding partition: {}", id, tp);
partitions.forEach(tp ->
{
log.info("{} - adding partition: {}", id, tp);
- seen.put(tp.partition(), new HashMap<>());
+ StatisticsDocument document =
+ repository
+ .findById(tp.toString())
+ .orElse(new StatisticsDocument(tp));
+ consumer.seek(tp, document.offset);
+ seen.put(tp, new PartitionStatistics(document));
});
}
});
});
}
});
@@
-121,17
+131,12
@@
public class EndlessConsumer implements Runnable
record.value()
);
record.value()
);
-
Integer partition = record.partition(
);
+
TopicPartition partition = new TopicPartition(record.topic(), record.partition()
);
String key = record.key() == null ? "NULL" : record.key();
String key = record.key() == null ? "NULL" : record.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.get(partition).increment(key);
}
}
+
+ seen.forEach((tp, statistics) -> repository.save(new StatisticsDocument(statistics, consumer.position(tp))));
}
}
catch(WakeupException e)
}
}
catch(WakeupException e)
@@
-151,7
+156,7
@@
public class EndlessConsumer implements Runnable
}
}
}
}
- public Map<
Integer, Map<String, Integer>
> getSeen()
+ public Map<
TopicPartition, PartitionStatistics
> getSeen()
{
return seen;
}
{
return seen;
}