X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2FEndlessConsumer.java;h=f0e74d39fd1737d59fdaa22f98815baca4c61df3;hb=5805651c16e07a0710b88c2822894941f67c313e;hp=a93ae2cf415fd9e8ab0bac84d4902082ab2fc177;hpb=6ded138c6b8139da2cdc13f2380b5f5a4e51cc4e;p=demos%2Fkafka%2Ftraining

diff --git a/src/main/java/de/juplo/kafka/EndlessConsumer.java b/src/main/java/de/juplo/kafka/EndlessConsumer.java
index a93ae2c..f0e74d3 100644
--- a/src/main/java/de/juplo/kafka/EndlessConsumer.java
+++ b/src/main/java/de/juplo/kafka/EndlessConsumer.java
@@ -19,14 +19,14 @@ import java.util.concurrent.locks.ReentrantLock;
 
 @Slf4j
 @RequiredArgsConstructor
-public class EndlessConsumer<K, V> implements ConsumerRebalanceListener, Runnable
+public class EndlessConsumer<K, V> implements Runnable
 {
   private final ExecutorService executor;
-  private final PartitionStatisticsRepository repository;
   private final String id;
   private final String topic;
   private final Consumer<K, V> consumer;
-  private final java.util.function.Consumer<ConsumerRecord<K, V>> handler;
+  private final ConsumerRebalanceListener rebalanceListener;
+  private final RecordHandler<K, V> recordHandler;
 
   private final Lock lock = new ReentrantLock();
   private final Condition condition = lock.newCondition();
@@ -34,56 +34,6 @@ public class EndlessConsumer<K, V> implements ConsumerRebalanceListener, Runnabl
   private Exception exception;
   private long consumed = 0;
 
-  private final Map<Integer, Map<String, Long>> seen = new HashMap<>();
-
-
-  @Override
-  public void onPartitionsRevoked(Collection<TopicPartition> partitions)
-  {
-    partitions.forEach(tp ->
-    {
-      Integer partition = tp.partition();
-      Long newOffset = consumer.position(tp);
-      log.info(
-          "{} - removing partition: {}, offset of next message {})",
-          id,
-          partition,
-          newOffset);
-      Map<String, Long> removed = seen.remove(partition);
-      for (String key : removed.keySet())
-      {
-        log.info(
-            "{} - Seen {} messages for partition={}|key={}",
-            id,
-            removed.get(key),
-            partition,
-            key);
-      }
-      repository.save(new StatisticsDocument(partition, removed, consumer.position(tp)));
-    });
-  }
-
-  @Override
-  public void onPartitionsAssigned(Collection<TopicPartition> partitions)
-  {
-    partitions.forEach(tp ->
-    {
-      Integer partition = tp.partition();
-      Long offset = consumer.position(tp);
-      log.info("{} - adding partition: {}, offset={}", id, partition, offset);
-      StatisticsDocument document =
-          repository
-              .findById(Integer.toString(partition))
-              .orElse(new StatisticsDocument(partition));
-      if (document.offset >= 0)
-      {
-        // Only seek, if a stored offset was found
-        // Otherwise: Use initial offset, generated by Kafka
-        consumer.seek(tp, document.offset);
-      }
-      seen.put(partition, document.statistics);
-    });
-  }
 
 
   @Override
@@ -92,7 +42,7 @@ public class EndlessConsumer<K, V> implements ConsumerRebalanceListener, Runnabl
     try
     {
       log.info("{} - Subscribing to topic {}", id, topic);
-      consumer.subscribe(Arrays.asList(topic), this);
+      consumer.subscribe(Arrays.asList(topic), rebalanceListener);
 
       while (true)
       {
@@ -113,32 +63,15 @@ public class EndlessConsumer<K, V> implements ConsumerRebalanceListener, Runnabl
               record.value()
           );
 
-          handler.accept(record);
+          recordHandler.accept(record);
 
           consumed++;
-
-          Integer partition = record.partition();
-          String key = record.key() == null ? "NULL" : record.key().toString();
-          Map<String, Long> byKey = seen.get(partition);
-
-          if (!byKey.containsKey(key))
-            byKey.put(key, 0l);
-
-          long 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)
     {
-      log.info("{} - RIIING! Request to stop consumption - commiting current offsets!", id);
+      log.info("{} - RIIING! Request to stop consumption.", id);
       shutdown();
     }
     catch(RecordDeserializationException e)
@@ -201,11 +134,6 @@ public class EndlessConsumer<K, V> implements ConsumerRebalanceListener, Runnabl
     }
   }
 
-  public Map<Integer, Map<String, Long>> getSeen()
-  {
-    return seen;
-  }
-
   public void start()
   {
     lock.lock();
@@ -225,7 +153,7 @@ public class EndlessConsumer<K, V> implements ConsumerRebalanceListener, Runnabl
     }
   }
 
-  public synchronized void stop() throws ExecutionException, InterruptedException
+  public synchronized void stop() throws InterruptedException
   {
     lock.lock();
     try