From: Kai Moritz <kai@juplo.de>
Date: Sat, 30 Apr 2022 09:38:26 +0000 (+0200)
Subject: Merge branch 'deserialization' into springified-consumer--serialization
X-Git-Tag: sumup-adder---lvm-2-tage~9^2~7^2~5
X-Git-Url: https://juplo.de/gitweb/?a=commitdiff_plain;h=d2f482e5eb951e725f4193f97d979330e91c930e;hp=c4fd031abdae00bdbd934216579f0a38ddd46783;p=demos%2Fkafka%2Ftraining

Merge branch 'deserialization' into springified-consumer--serialization
---

diff --git a/src/main/java/de/juplo/kafka/Application.java b/src/main/java/de/juplo/kafka/Application.java
index 6601e6d..b5bd1b9 100644
--- a/src/main/java/de/juplo/kafka/Application.java
+++ b/src/main/java/de/juplo/kafka/Application.java
@@ -46,12 +46,12 @@ public class Application implements ApplicationRunner
     }
     finally
     {
-      if (!executor.isShutdown())
+      if (!executor.isTerminated())
       {
         log.warn("Forcing shutdown of ExecutorService!");
         executor
             .shutdownNow()
-            .forEach(runnable -> log.warn("Unfinished task: {}", runnable.getClass().getSimpleName()));
+            .forEach(runnable -> log.warn("Unprocessed task: {}", runnable.getClass().getSimpleName()));
       }
       log.info("Shutdow of ExecutorService finished");
     }
diff --git a/src/main/java/de/juplo/kafka/EndlessConsumer.java b/src/main/java/de/juplo/kafka/EndlessConsumer.java
index b173b12..8802df9 100644
--- a/src/main/java/de/juplo/kafka/EndlessConsumer.java
+++ b/src/main/java/de/juplo/kafka/EndlessConsumer.java
@@ -19,7 +19,7 @@ import java.util.concurrent.locks.ReentrantLock;
 
 @Slf4j
 @RequiredArgsConstructor
-public class EndlessConsumer<K, V> implements Runnable
+public class EndlessConsumer<K, V> implements ConsumerRebalanceListener, Runnable
 {
   private final ExecutorService executor;
   private final String id;
@@ -37,55 +37,55 @@ public class EndlessConsumer<K, V> implements Runnable
   private final Map<Integer, Long> offsets = new HashMap<>();
 
 
+  @Override
+  public void onPartitionsRevoked(Collection<TopicPartition> partitions)
+  {
+    partitions.forEach(tp ->
+    {
+      Integer partition = tp.partition();
+      Long newOffset = consumer.position(tp);
+      Long oldOffset = offsets.remove(partition);
+      log.info(
+          "{} - removing partition: {}, consumed {} records (offset {} -> {})",
+          id,
+          partition,
+          newOffset - oldOffset,
+          oldOffset,
+          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);
+      }
+    });
+  }
+
+  @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);
+      offsets.put(partition, offset);
+      seen.put(partition, new HashMap<>());
+    });
+  }
+
+
   @Override
   public void run()
   {
     try
     {
       log.info("{} - Subscribing to topic {}", id, topic);
-      consumer.subscribe(Arrays.asList(topic), new ConsumerRebalanceListener()
-      {
-        @Override
-        public void onPartitionsRevoked(Collection<TopicPartition> partitions)
-        {
-          partitions.forEach(tp ->
-          {
-            Integer partition = tp.partition();
-            Long newOffset = consumer.position(tp);
-            Long oldOffset = offsets.remove(partition);
-            log.info(
-                "{} - removing partition: {}, consumed {} records (offset {} -> {})",
-                id,
-                partition,
-                newOffset - oldOffset,
-                oldOffset,
-                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);
-            }
-          });
-        }
-
-        @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);
-            offsets.put(partition, offset);
-            seen.put(partition, new HashMap<>());
-          });
-        }
-      });
+      consumer.subscribe(Arrays.asList(topic), this);
 
       while (true)
       {