From: Kai Moritz <kai@juplo.de>
Date: Sat, 14 Oct 2023 12:59:16 +0000 (+0200)
Subject: "Endlose" Version des Super-Simplen Producers
X-Git-Tag: spring/endless-producer-DEPRECATED
X-Git-Url: http://juplo.de/gitweb/?a=commitdiff_plain;h=d848fcf30549f3874d90bdb5c462e1be0c5a0d0b;p=demos%2Fkafka%2Ftraining

"Endlose" Version des Super-Simplen Producers

* Problem: Beendet sich nicht sauber...
* Grund: Die Endlosschleife läuft _in_ der Initialisierungs-Phase!
---

diff --git a/README.sh b/README.sh
index c39fe5b..ebafed7 100755
--- a/README.sh
+++ b/README.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-IMAGE=juplo/supersimple-producer:1.0-SNAPSHOT
+IMAGE=juplo/endless-spring-producer:1.0-SNAPSHOT
 
 if [ "$1" = "cleanup" ]
 then
@@ -27,8 +27,8 @@ docker-compose -f docker/docker-compose.yml run --rm cli cub kafka-ready -b kafk
 
 docker-compose -f docker/docker-compose.yml up -t0 -d cli
 docker-compose -f docker/docker-compose.yml ps
-docker-compose -f docker/docker-compose.yml up producer
+docker-compose -f docker/docker-compose.yml up -d producer
 
-# tag::kafkacat[]
-kafkacat -b :9092 -t test -e -f'topic=%t\tpartition=%p\toffset=%o\tkey=%k\tvalue=%s\n'
-# end::kafkacat[]
+kafkacat -b :9092 -t test -c 100 -f'topic=%t\tpartition=%p\toffset=%o\tkey=%k\tvalue=%s\n'
+
+docker-compose stop producer
diff --git a/pom.xml b/pom.xml
index ee60567..244f8df 100644
--- a/pom.xml
+++ b/pom.xml
@@ -12,9 +12,9 @@
   </parent>
 
   <groupId>de.juplo.kafka</groupId>
-  <artifactId>supersimple-producer</artifactId>
-  <name>Super Simple Producer</name>
-  <description>Most minimal Kafka Producer ever!</description>
+  <artifactId>endless-spring-producer</artifactId>
+  <name>Super Simple Endless Producer</name>
+  <description>Most minimal endless Kafka Producer ever!</description>
   <version>1.0-SNAPSHOT</version>
 
   <properties>
diff --git a/src/main/java/de/juplo/kafka/Application.java b/src/main/java/de/juplo/kafka/Application.java
index 5e123dd..e3a46d9 100644
--- a/src/main/java/de/juplo/kafka/Application.java
+++ b/src/main/java/de/juplo/kafka/Application.java
@@ -11,7 +11,6 @@ import org.springframework.kafka.support.SendResult;
 import org.springframework.util.concurrent.ListenableFuture;
 
 
-// tag::supersimple[]
 @Slf4j
 @SpringBootApplication
 public class Application implements ApplicationRunner
@@ -22,14 +21,10 @@ public class Application implements ApplicationRunner
   @Override
   public void run(ApplicationArguments args)
   {
-    for (int i = 0; i < 100; i++)
+    for (int i = 0; true; i++)
     {
-      // end::supersimple[]
-      // tag::callback[]
       ListenableFuture<SendResult<String, String>> listenableFuture =
-      // tag::supersimple[]
           kafkaTemplate.sendDefault(Long.toString(i%10), Long.toString(i));
-      // end::supersimple[]
 
       listenableFuture.addCallback(
           result -> log.info(
@@ -39,8 +34,6 @@ public class Application implements ApplicationRunner
               result.getRecordMetadata().partition(),
               result.getRecordMetadata().offset()),
           e -> log.error("ERROR sendig message", e));
-      // end::callback[]
-      // tag::supersimple[]
     }
   }
 
@@ -49,4 +42,3 @@ public class Application implements ApplicationRunner
     SpringApplication.run(Application.class, args);
   }
 }
-// end::supersimple[]