Version des ``spring-consumer``, die ``long``-Werte erwartet

diff --git a/README.sh b/README.sh
index b46e235..f4696e0 100755 (executable)
--- a/README.sh
+++ b/README.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-IMAGE=juplo/spring-consumer:1.1-SNAPSHOT
+IMAGE=juplo/spring-consumer:1.1-long-SNAPSHOT
 
 if [ "$1" = "cleanup" ]
 then
@@ -10,7 +10,7 @@ then
 fi
 
 docker compose -f docker/docker-compose.yml up -d --remove-orphans kafka-1 kafka-2 kafka-3
-docker compose -f docker/docker-compose.yml rm -svf consumer
+docker compose -f docker/docker-compose.yml rm -svf consumer-1 consumer-2
 
 if [[
   $(docker image ls -q $IMAGE) == "" ||
@@ -27,13 +27,16 @@ docker compose -f docker/docker-compose.yml up --remove-orphans setup || exit 1
 
 
 docker compose -f docker/docker-compose.yml up -d producer
-docker compose -f docker/docker-compose.yml up -d consumer
+docker compose -f docker/docker-compose.yml up -d consumer-1 consumer-2
+sleep 15
 
-sleep 5
-docker compose -f docker/docker-compose.yml stop consumer
+docker compose -f docker/docker-compose.yml stop producer
 
-docker compose -f docker/docker-compose.yml start consumer
-sleep 5
+echo
+echo "Von consumer-1 empfangen:"
+docker compose -f docker/docker-compose.yml logs consumer-1 | grep '\ test\/.'
+echo
+echo "Von consumer-2 empfangen:"
+docker compose -f docker/docker-compose.yml logs consumer-2 | grep '\ test\/.'
 
-docker compose -f docker/docker-compose.yml stop producer consumer
-docker compose -f docker/docker-compose.yml logs consumer
+docker compose -f docker/docker-compose.yml stop consumer-1 consumer-2

diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index 6bd2766..b899570 100644 (file)
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -190,19 +190,24 @@ services:
       - kafka-3
 
   producer:
-    image: juplo/spring-producer:1.0-SNAPSHOT
+    image: juplo/spring-producer:1.0-long-SNAPSHOT
     environment:
       juplo.bootstrap-server: kafka:9092
       juplo.client-id: producer
       juplo.producer.topic: test
-      juplo.producer.linger-ms: 666
-      juplo.producer.throttle-ms: 100
 
-  consumer:
-    image: juplo/spring-consumer:1.1-SNAPSHOT
+  consumer-1:
+    image: juplo/spring-consumer:1.1-long-SNAPSHOT
     environment:
       juplo.bootstrap-server: kafka:9092
-      juplo.client-id: consumer
+      juplo.client-id: consumer-1
+      juplo.consumer.topic: test
+
+  consumer-2:
+    image: juplo/spring-consumer:1.1-long-SNAPSHOT
+    environment:
+      juplo.bootstrap-server: kafka:9092
+      juplo.client-id: consumer-2
       juplo.consumer.topic: test
 
 volumes:

diff --git a/pom.xml b/pom.xml
index 98a0a36..c32791f 100644 (file)
--- a/pom.xml
+++ b/pom.xml
@@ -15,7 +15,7 @@
   <artifactId>spring-consumer</artifactId>
   <name>Spring Consumer</name>
   <description>Super Simple Consumer-Group, that is implemented as Spring-Boot application and configured by Spring Kafka</description>
-  <version>1.1-SNAPSHOT</version>
+  <version>1.1-long-SNAPSHOT</version>
 
   <properties>
     <java.version>21</java.version>

diff --git a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
index a4856a6..37f0bf6 100644 (file)
--- a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
+++ b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
@@ -3,6 +3,7 @@ package de.juplo.kafka;
 import org.apache.kafka.clients.consumer.Consumer;
 import org.apache.kafka.clients.consumer.KafkaConsumer;
 import org.apache.kafka.clients.consumer.StickyAssignor;
+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.ConfigurableApplicationContext;
@@ -18,7 +19,7 @@ public class ApplicationConfiguration
 {
   @Bean
   public ExampleConsumer exampleConsumer(
-      Consumer<String, String> kafkaConsumer,
+      Consumer<String, Long> kafkaConsumer,
       ApplicationProperties properties,
       ConfigurableApplicationContext applicationContext)
   {
@@ -31,7 +32,7 @@ public class ApplicationConfiguration
   }
 
   @Bean(destroyMethod = "")
-  public KafkaConsumer<String, String> kafkaConsumer(ApplicationProperties properties)
+  public KafkaConsumer<String, Long> kafkaConsumer(ApplicationProperties properties)
   {
     Properties props = new Properties();
     props.put("bootstrap.servers", properties.getBootstrapServer());
@@ -48,7 +49,7 @@ public class ApplicationConfiguration
     props.put("metadata.maxage.ms", 5000); //  5 Sekunden
     props.put("partition.assignment.strategy", StickyAssignor.class.getName());
     props.put("key.deserializer", StringDeserializer.class.getName());
-    props.put("value.deserializer", StringDeserializer.class.getName());
+    props.put("value.deserializer", LongDeserializer.class.getName());
 
     return new KafkaConsumer<>(props);
   }

diff --git a/src/main/java/de/juplo/kafka/ExampleConsumer.java b/src/main/java/de/juplo/kafka/ExampleConsumer.java
index f832b45..faa4c0a 100644 (file)
--- a/src/main/java/de/juplo/kafka/ExampleConsumer.java
+++ b/src/main/java/de/juplo/kafka/ExampleConsumer.java
@@ -15,7 +15,7 @@ public class ExampleConsumer implements Runnable
 {
   private final String id;
   private final String topic;
-  private final Consumer<String, String> consumer;
+  private final Consumer<String, Long> consumer;
   private final Thread workerThread;
   private final Runnable closeCallback;
 
@@ -26,7 +26,7 @@ public class ExampleConsumer implements Runnable
   public ExampleConsumer(
     String clientId,
     String topic,
-    Consumer<String, String> consumer,
+    Consumer<String, Long> consumer,
     Runnable closeCallback)
   {
     this.id = clientId;
@@ -51,11 +51,11 @@ public class ExampleConsumer implements Runnable
 
       while (running)
       {
-        ConsumerRecords<String, String> records =
+        ConsumerRecords<String, Long> records =
             consumer.poll(Duration.ofSeconds(1));
 
         log.info("{} - Received {} messages", id, records.count());
-        for (ConsumerRecord<String, String> record : records)
+        for (ConsumerRecord<String, Long> record : records)
         {
           handleRecord(
             record.topic(),
@@ -90,7 +90,7 @@ public class ExampleConsumer implements Runnable
     Integer partition,
     Long offset,
     String key,
-    String value)
+    Long value)
   {
     consumed++;
     log.info("{} - {}: {}/{} - {}={}", id, offset, topic, partition, key, value);