X-Git-Url: http://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2FApplicationConfiguration.java;fp=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2FApplicationConfiguration.java;h=d0334a2317ab267509c16ae757a4871149fff74e;hb=81c08612c6636a04864699233e7806d72e2ecf3a;hp=0000000000000000000000000000000000000000;hpb=d115070b9cbc56f4ec9d47ec658f49527fbeb35e;p=demos%2Fkafka%2Ftraining

diff --git a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
new file mode 100644
index 0000000..d0334a2
--- /dev/null
+++ b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
@@ -0,0 +1,64 @@
+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.util.Properties;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+
+@Configuration
+@EnableConfigurationProperties(ApplicationProperties.class)
+public class ApplicationConfiguration
+{
+  @Bean
+  public RecordHandler noopRecordHandler()
+  {
+    return record -> {};
+  }
+
+  @Bean
+  public EndlessConsumer<String, Long> endlessConsumer(
+      KafkaConsumer<String, Long> kafkaConsumer,
+      ExecutorService executor,
+      RecordHandler noopRecordHandler,
+      ApplicationProperties properties)
+  {
+    return
+        new EndlessConsumer<>(
+            executor,
+            properties.getClientId(),
+            properties.getTopic(),
+            kafkaConsumer,
+            noopRecordHandler);
+  }
+
+  @Bean
+  public ExecutorService executor()
+  {
+    return Executors.newSingleThreadExecutor();
+  }
+
+  @Bean(destroyMethod = "close")
+  public KafkaConsumer<String, Long> 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("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());
+
+    return new KafkaConsumer<>(props);
+  }
+}