Vorlage

diff --git a/Dockerfile b/Dockerfile
deleted file mode 100644 (file)
index 74e66ed..0000000
--- a/Dockerfile
+++ /dev/null
@@ -1,6 +0,0 @@
-FROM eclipse-temurin:21-jre
-VOLUME /tmp
-COPY target/*.jar /opt/app.jar
-COPY target/libs /opt/libs
-ENTRYPOINT [ "java", "-jar", "/opt/app.jar" ]
-CMD [ "kafka:9092", "test", "DCKR" ]

diff --git a/README.sh b/README.sh
deleted file mode 100755 (executable)
index 3d98ace..0000000
--- a/README.sh
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/bin/bash
-
-IMAGE=juplo/simple-producer:1.0-SNAPSHOT
-
-if [ "$1" = "cleanup" ]
-then
-  docker compose -f docker/docker-compose.yml down -t0 -v --remove-orphans
-  mvn clean
-  exit
-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 producer
-
-if [[
-  $(docker image ls -q $IMAGE) == "" ||
-  "$1" = "build"
-]]
-then
-  mvn clean install || exit
-else
-  echo "Using image existing images:"
-  docker image ls $IMAGE
-fi
-
-docker compose -f docker/docker-compose.yml up --remove-orphans setup || exit 1
-
-
-docker compose -f docker/docker-compose.yml up -d producer
-sleep 5
-
-docker compose -f docker/docker-compose.yml exec cli kafkacat -b kafka:9092 -t test -c 20 -f'topic=%t\tpartition=%p\toffset=%o\tkey=%k\tvalue=%s\n'
-
-docker compose -f docker/docker-compose.yml stop producer
-docker compose -f docker/docker-compose.yml exec cli kafkacat -b kafka:9092 -t test -e -f'topic=%t\tpartition=%p\toffset=%o\tkey=%k\tvalue=%s\n'
-docker compose -f docker/docker-compose.yml logs producer

diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index 5b19de7..39cc67a 100644 (file)
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -135,10 +135,6 @@ services:
       - kafka-2
       - kafka-3
 
-  producer:
-    image: juplo/simple-producer:1.0-SNAPSHOT
-    command: kafka:9092 test producer
-
 volumes:
   zookeeper-data:
   zookeeper-log:

diff --git a/src/main/java/de/juplo/kafka/ExampleProducer.java b/src/main/java/de/juplo/kafka/ExampleProducer.java
index c3db7e7..a0e53c7 100644 (file)
--- a/src/main/java/de/juplo/kafka/ExampleProducer.java
+++ b/src/main/java/de/juplo/kafka/ExampleProducer.java
@@ -1,157 +1,12 @@
 package de.juplo.kafka;
 
 import lombok.extern.slf4j.Slf4j;
-import org.apache.kafka.clients.producer.Producer;
-import org.apache.kafka.clients.producer.KafkaProducer;
-import org.apache.kafka.clients.producer.ProducerRecord;
-import org.apache.kafka.common.serialization.StringSerializer;
-
-import java.util.Properties;
 
 
 @Slf4j
 public class ExampleProducer
 {
-  private final String id;
-  private final String topic;
-  private final Producer<String, String> producer;
-
-  private volatile boolean running = true;
-  private volatile boolean done = false;
-  private long produced = 0;
-
-  public ExampleProducer(
-    String broker,
-    String topic,
-    String clientId)
-  {
-    Properties props = new Properties();
-    props.put("bootstrap.servers", broker);
-    props.put("client.id", clientId); // Nur zur Wiedererkennung
-    props.put("key.serializer", StringSerializer.class.getName());
-    props.put("value.serializer", StringSerializer.class.getName());
-
-    this.id = clientId;
-    this.topic = topic;
-    producer = new KafkaProducer<>(props);
-  }
-
-  public void run()
-  {
-    long i = 0;
-
-    try
-    {
-      for (; running; i++)
-      {
-        send(Long.toString(i%10), Long.toString(i));
-        Thread.sleep(500);
-      }
-    }
-    catch (Exception e)
-    {
-      log.error("{} - Unexpected error!", id, e);
-    }
-    finally
-    {
-      log.info("{}: Closing the KafkaProducer", id);
-      producer.close();
-      log.info("{}: Produced {} messages in total, exiting!", id, produced);
-      done = true;
-    }
-  }
-
-  void send(String key, String value)
-  {
-    final long time = System.currentTimeMillis();
-
-    final ProducerRecord<String, String> record = new ProducerRecord<>(
-      topic,  // Topic
-      key,    // Key
-      value   // Value
-    );
-
-    producer.send(record, (metadata, e) ->
-    {
-      long now = System.currentTimeMillis();
-      if (e == null)
-      {
-        // HANDLE SUCCESS
-        produced++;
-        log.debug(
-          "{} - Sent message {}={}, partition={}, offset={}, timestamp={}, latency={}ms",
-          id,
-          key,
-          value,
-          metadata.partition(),
-          metadata.offset(),
-          metadata.timestamp(),
-          now - time
-        );
-      }
-      else
-      {
-        // HANDLE ERROR
-        log.error(
-          "{} - ERROR for message {}={}, latency={}ms: {}",
-          id,
-          key,
-          value,
-          now - time,
-          e.toString()
-        );
-      }
-    });
-
-    long now = System.currentTimeMillis();
-    log.trace(
-      "{} - Queued message {}={}, latency={}ms",
-      id,
-      key,
-      value,
-      now - time
-    );
-  }
-
-
   public static void main(String[] args) throws Exception
   {
-    String broker = ":9092";
-    String topic = "test";
-    String clientId = "DEV";
-
-    switch (args.length)
-    {
-      case 3:
-        clientId = args[2];
-      case 2:
-        topic = args[1];
-      case 1:
-        broker = args[0];
-    }
-
-    ExampleProducer instance = new ExampleProducer(broker, topic, clientId);
-
-    Runtime.getRuntime().addShutdownHook(new Thread(() ->
-    {
-      instance.running = false;
-      while (!instance.done)
-      {
-        log.info("Waiting for main-thread...");
-        try
-        {
-          Thread.sleep(1000);
-        }
-        catch (InterruptedException e) {}
-      }
-      log.info("Shutdown completed.");
-    }));
-
-    log.info(
-      "Running ExampleProducer: broker={}, topic={}, client-id={}",
-      broker,
-      topic,
-      clientId);
-    instance.run();
   }
 }