From: Kai Moritz <kai@juplo.de>
Date: Sun, 10 Nov 2024 16:19:53 +0000 (+0100)
Subject: Version des ``spring-producer``, die ``long``-Werte verschickt
X-Git-Tag: producer/spring-producer--long--2025-04-signal-spickzettel
X-Git-Url: http://juplo.de/gitweb/?a=commitdiff_plain;h=e1f5b42f20f747a0caeb2b7decddd085c49bcb24;p=demos%2Fkafka%2Ftraining

Version des ``spring-producer``, die ``long``-Werte verschickt
---

diff --git a/README.sh b/README.sh
index 77fc374..5e6270a 100755
--- a/README.sh
+++ b/README.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-IMAGE=juplo/spring-producer:2.0-SNAPSHOT
+IMAGE=juplo/spring-producer:2.0-long-SNAPSHOT
 
 if [ "$1" = "cleanup" ]
 then
diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index 59e7ed5..0fbb8de 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -136,23 +136,29 @@ services:
       - kafka-3
 
   producer:
-    image: juplo/spring-producer:2.0-SNAPSHOT
+    image: juplo/spring-producer:2.0-long-SNAPSHOT
     environment:
       spring.kafka.bootstrap-servers: kafka:9092
       spring.kafka.client-id: producer
       juplo.producer.topic: test
 
   consumer:
-    image: juplo/simple-consumer:1.0-SNAPSHOT
-    command: kafka:9092 test my-group consumer
+    image: juplo/spring-consumer:1.1-SNAPSHOT
+    environment:
+      juplo.bootstrap-server: kafka:9092
+      juplo.client-id: consumer
 
   peter:
-    image: juplo/simple-consumer:1.0-SNAPSHOT
-    command: kafka:9092 test my-group peter
+    image: juplo/spring-consumer:1.1-long-SNAPSHOT
+    environment:
+      juplo.bootstrap-server: kafka:9092
+      juplo.client-id: peter
 
   ute:
-    image: juplo/simple-consumer:1.0-SNAPSHOT
-    command: kafka:9092 test my-group ute
+    image: juplo/spring-consumer:1.1-long-SNAPSHOT
+    environment:
+      juplo.bootstrap-server: kafka:9092
+      juplo.client-id: ute
 
 volumes:
   zookeeper-data:
diff --git a/pom.xml b/pom.xml
index be7dea5..a8b37b4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -15,7 +15,7 @@
   <artifactId>spring-producer</artifactId>
   <name>Spring Producer</name>
   <description>A Simple Producer, based on Spring Boot, that sends messages via Kafka</description>
-  <version>2.0-SNAPSHOT</version>
+  <version>2.0-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 efdfafa..c0bade1 100644
--- a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
+++ b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
@@ -19,7 +19,7 @@ public class ApplicationConfiguration
   public ExampleProducer exampleProducer(
     @Value("${spring.kafka.client-id}") String clientId,
     ApplicationProperties properties,
-    Producer<String, String> kafkaProducer,
+    Producer<String, Long> kafkaProducer,
     ConfigurableApplicationContext applicationContext)
   {
     return
diff --git a/src/main/java/de/juplo/kafka/ExampleProducer.java b/src/main/java/de/juplo/kafka/ExampleProducer.java
index c5a5a80..c0633b0 100644
--- a/src/main/java/de/juplo/kafka/ExampleProducer.java
+++ b/src/main/java/de/juplo/kafka/ExampleProducer.java
@@ -13,7 +13,7 @@ public class ExampleProducer implements Runnable
   private final String id;
   private final String topic;
   private final Duration throttle;
-  private final Producer<String, String> producer;
+  private final Producer<String, Long> producer;
   private final Thread workerThread;
   private final Runnable closeCallback;
 
@@ -25,7 +25,7 @@ public class ExampleProducer implements Runnable
     String id,
     String topic,
     Duration throttle,
-    Producer<String, String> producer,
+    Producer<String, Long> producer,
     Runnable closeCallback)
   {
     this.id = id;
@@ -49,7 +49,7 @@ public class ExampleProducer implements Runnable
     {
       for (; running; i++)
       {
-        send(Long.toString(i%10), Long.toString(i));
+        send(Long.toString(i%10), i);
 
         if (throttle.isPositive())
         {
@@ -78,11 +78,11 @@ public class ExampleProducer implements Runnable
     }
   }
 
-  void send(String key, String value)
+  void send(String key, long value)
   {
     final long time = System.currentTimeMillis();
 
-    final ProducerRecord<String, String> record = new ProducerRecord<>(
+    final ProducerRecord<String, Long> record = new ProducerRecord<>(
       topic,  // Topic
       key,    // Key
       value   // Value
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 3f6c233..d4ca69a 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -11,6 +11,7 @@ spring:
       buffer-memory: 33554432
       batch-size: 16384
       compression-type: gzip
+      value-serializer: org.apache.kafka.common.serialization.LongSerializer
       properties:
         metadata.max.age.ms: 5000
         request.timeout.ms: 5000