Vereinfachte Version der auf Spring Kafka basierenden Implementierung

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

diff --git a/src/main/java/de/juplo/kafka/EndlessConsumer.java b/src/main/java/de/juplo/kafka/EndlessConsumer.java
deleted file mode 100644 (file)
index 27c1e44..0000000
--- a/src/main/java/de/juplo/kafka/EndlessConsumer.java
+++ /dev/null
@@ -1,102 +0,0 @@
-package de.juplo.kafka;
-
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
-import org.apache.kafka.clients.consumer.ConsumerRecord;
-import org.springframework.kafka.annotation.KafkaHandler;
-import org.springframework.kafka.annotation.KafkaListener;
-import org.springframework.kafka.config.KafkaListenerEndpointRegistry;
-import org.springframework.kafka.support.KafkaHeaders;
-import org.springframework.messaging.handler.annotation.Header;
-import org.springframework.messaging.handler.annotation.Payload;
-
-import java.util.List;
-import java.util.Optional;
-
-
-@RequiredArgsConstructor
-@Slf4j
-@KafkaListener(
-    id = "${spring.kafka.client-id}",
-    idIsGroup = false,
-    topics = "${sumup.adder.topic}",
-    autoStartup = "false")
-public class EndlessConsumer
-{
-  private final String id;
-  private final KafkaListenerEndpointRegistry registry;
-  private final RecordHandler recordHandler;
-
-  private long consumed = 0;
-
-
-  @KafkaHandler
-  public void addNumber(
-    @Header(KafkaHeaders.RECEIVED_MESSAGE_KEY) String key,
-    @Header(KafkaHeaders.RECEIVED_TOPIC) String topic,
-    @Header(KafkaHeaders.RECEIVED_PARTITION_ID) Integer partition,
-    @Header(KafkaHeaders.OFFSET) Long offset,
-    @Payload MessageAddNumber message)
-  {
-          log.info(
-              "{} - {}: {}/{} - {}={}",
-              id,
-              offset,
-              topic,
-              partition,
-              key,
-              message
-          );
-
-          recordHandler.addNumber(topic, partition, offset, key, message);
-
-          consumed++;
-  }
-
-  @KafkaHandler
-  public void calculateSum(
-    @Header(KafkaHeaders.RECEIVED_MESSAGE_KEY) String key,
-    @Header(KafkaHeaders.RECEIVED_TOPIC) String topic,
-    @Header(KafkaHeaders.RECEIVED_PARTITION_ID) Integer partition,
-    @Header(KafkaHeaders.OFFSET) Long offset,
-    @Payload MessageCalculateSum message)
-  {
-          log.info(
-              "{} - {}: {}/{} - {}={}",
-              id,
-              offset,
-              topic,
-              partition,
-              key,
-              message
-          );
-
-          recordHandler.calculateSum(topic, partition, offset, key, message);
-
-          consumed++;
-  }
-
-  public void start()
-  {
-    if (running())
-      throw new IllegalStateException("Consumer instance " + id + " is already running!");
-
-    log.info("{} - Starting - consumed {} messages before", id, consumed);
-    registry.getListenerContainer(id).start();
-  }
-
-  public void stop()
-  {
-    if (!running())
-      throw new IllegalStateException("Consumer instance " + id + " is not running!");
-
-    log.info("{} - Stopping", id);
-    registry.getListenerContainer(id).stop();
-    log.info("{} - Stopped - consumed {} messages so far", id, consumed);
-  }
-
-  public boolean running()
-  {
-    return registry.getListenerContainer(id).isRunning();
-  }
-}