Konfig-Parameter zum künstlichen Verzögern der Verabeitung eingebaut

[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 6e04453..4d056c4 100644 (file)
--- a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
+++ b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
@@ -1,13 +1,15 @@
 package de.juplo.kafka;
 
 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.Optional;
 import java.util.Properties;
+import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 
 
@@ -16,20 +18,57 @@ import java.util.concurrent.Executors;
 public class ApplicationConfiguration
 {
   @Bean
-  public EndlessConsumer endlessConsumer(
+  public ApplicationRecordHandler recordHandler(
+      AdderResults adderResults,
+      ApplicationProperties properties)
+  {
+    return new ApplicationRecordHandler(
+        adderResults,
+        Optional.ofNullable(properties.getThrottle()));
+  }
+
+  @Bean
+  public AdderResults adderResults()
+  {
+    return new AdderResults();
+  }
+
+  @Bean
+  public ApplicationRebalanceListener rebalanceListener(
+      ApplicationRecordHandler recordHandler,
+      AdderResults adderResults,
+      StateRepository stateRepository,
+      ApplicationProperties properties)
+  {
+    return new ApplicationRebalanceListener(
+        recordHandler,
+        adderResults,
+        stateRepository,
+        properties.getClientId());
+  }
+
+  @Bean
+  public EndlessConsumer<String, String> endlessConsumer(
       KafkaConsumer<String, String> kafkaConsumer,
+      ExecutorService executor,
+      ApplicationRebalanceListener rebalanceListener,
+      ApplicationRecordHandler recordHandler,
       ApplicationProperties properties)
   {
-    EndlessConsumer consumer =
-        new EndlessConsumer(
-            Executors.newFixedThreadPool(1),
+    return
+        new EndlessConsumer<>(
+            executor,
             properties.getClientId(),
             properties.getTopic(),
-            kafkaConsumer);
-
-    consumer.start();
+            kafkaConsumer,
+            rebalanceListener,
+            recordHandler);
+  }
 
-    return consumer;
+  @Bean
+  public ExecutorService executor()
+  {
+    return Executors.newSingleThreadExecutor();
   }
 
   @Bean(destroyMethod = "close")
@@ -38,12 +77,14 @@ public class ApplicationConfiguration
     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("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);
   }