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[demos/kafka/training] / src / main / java / de / juplo / kafka / ApplicationConfiguration.java

diff --git a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
index 766740b..3be8f95 100644 (file)
--- a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
+++ b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
@@ -1,17 +1,16 @@
 package de.juplo.kafka;
 
-import org.apache.kafka.clients.consumer.ConsumerRecord;
+import org.apache.kafka.clients.consumer.Consumer;
 import org.apache.kafka.clients.consumer.KafkaConsumer;
-import org.apache.kafka.common.serialization.LongDeserializer;
 import org.apache.kafka.common.serialization.StringDeserializer;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.time.Clock;
 import java.util.Properties;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
-import java.util.function.Consumer;
 
 
 @Configuration
@@ -19,19 +18,34 @@ import java.util.function.Consumer;
 public class ApplicationConfiguration
 {
   @Bean
-  public Consumer<ConsumerRecord<String, Long>> consumer()
+  public SumRecordHandler sumRecordHandler()
   {
-    return (record) ->
-    {
-      // Handle record
-    };
+    return new SumRecordHandler();
   }
 
   @Bean
-  public EndlessConsumer<String, Long> endlessConsumer(
-      KafkaConsumer<String, Long> kafkaConsumer,
+  public SumRebalanceListener sumRebalanceListener(
+      SumRecordHandler sumRecordHandler,
+      PartitionStatisticsRepository repository,
+      Consumer<String, String> consumer,
+      ApplicationProperties properties)
+  {
+    return new SumRebalanceListener(
+        sumRecordHandler,
+        repository,
+        properties.getClientId(),
+        properties.getTopic(),
+        Clock.systemDefaultZone(),
+        properties.getCommitInterval(),
+        consumer);
+  }
+
+  @Bean
+  public EndlessConsumer<String, String> endlessConsumer(
+      KafkaConsumer<String, String> kafkaConsumer,
       ExecutorService executor,
-      Consumer<ConsumerRecord<String, Long>> handler,
+      SumRebalanceListener sumRebalanceListener,
+      SumRecordHandler sumRecordHandler,
       ApplicationProperties properties)
   {
     return
@@ -40,7 +54,8 @@ public class ApplicationConfiguration
             properties.getClientId(),
             properties.getTopic(),
             kafkaConsumer,
-            handler);
+            sumRebalanceListener,
+            sumRecordHandler);
   }
 
   @Bean
@@ -50,18 +65,19 @@ public class ApplicationConfiguration
   }
 
   @Bean(destroyMethod = "close")
-  public KafkaConsumer<String, Long> kafkaConsumer(ApplicationProperties properties)
+  public KafkaConsumer<String, String> kafkaConsumer(ApplicationProperties properties)
   {
     Properties props = new Properties();
 
     props.put("bootstrap.servers", properties.getBootstrapServer());
+    props.put("partition.assignment.strategy", "org.apache.kafka.clients.consumer.CooperativeStickyAssignor");
     props.put("group.id", properties.getGroupId());
     props.put("client.id", properties.getClientId());
+    props.put("enable.auto.commit", false);
     props.put("auto.offset.reset", properties.getAutoOffsetReset());
-    props.put("auto.commit.interval.ms", (int)properties.getCommitInterval().toMillis());
     props.put("metadata.max.age.ms", "1000");
     props.put("key.deserializer", StringDeserializer.class.getName());
-    props.put("value.deserializer", LongDeserializer.class.getName());
+    props.put("value.deserializer", StringDeserializer.class.getName());
 
     return new KafkaConsumer<>(props);
   }