Implementierung des Consumers aus 'first-contact' vereinfacht

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

diff --git a/src/main/java/de/juplo/kafka/SimpleProducer.java b/src/main/java/de/juplo/kafka/SimpleProducer.java
deleted file mode 100644 (file)
index 43a7227..0000000
--- a/src/main/java/de/juplo/kafka/SimpleProducer.java
+++ /dev/null
@@ -1,117 +0,0 @@
-package de.juplo.kafka;
-
-import lombok.extern.slf4j.Slf4j;
-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;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Future;
-
-
-@Slf4j
-public class SimpleProducer
-{
-  private final String id;
-  private final String topic;
-  private final KafkaProducer<String, String> producer;
-
-  private long produced = 0;
-
-  public SimpleProducer(String clientId, String topic)
-  {
-    // tag::create[]
-    Properties props = new Properties();
-    props.put("bootstrap.servers", "localhost:9092");
-    props.put("key.serializer", StringSerializer.class.getName());
-    props.put("value.serializer", StringSerializer.class.getName());
-
-    KafkaProducer<String, String> producer = new KafkaProducer<>(props);
-    // end::create[]
-
-    this.id = clientId;
-    this.topic = topic;
-    this.producer = producer;
-  }
-
-  public void run()
-  {
-    long i = 0;
-
-    try
-    {
-      for (; i < 100 ; i++)
-      {
-        send(Long.toString(i%10), Long.toString(i));
-      }
-
-      log.info("{} - Done", id);
-    }
-    finally
-    {
-      log.info("{}: Closing the KafkaProducer", id);
-      producer.close();
-      log.info("{}: Produced {} messages in total, exiting!", id, produced);
-    }
-  }
-
-  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 key={} message={} partition={}/{} timestamp={} latency={}ms",
-            id,
-            record.key(),
-            record.value(),
-            metadata.partition(),
-            metadata.offset(),
-            metadata.timestamp(),
-            now - time
-        );
-      }
-      else
-      {
-        // HANDLE ERROR
-        log.error(
-            "{} - ERROR key={} timestamp={} latency={}ms: {}",
-            id,
-            record.key(),
-            metadata == null ? -1 : metadata.timestamp(),
-            now - time,
-            e.toString()
-        );
-      }
-    });
-
-    long now = System.currentTimeMillis();
-    log.trace(
-        "{} - Queued #{} key={} latency={}ms",
-        id,
-        value,
-        record.key(),
-        now - time
-    );
-  }
-
-
-  public static void main(String[] args) throws Exception
-  {
-    SimpleProducer producer = new SimpleProducer("P", "test");
-    producer.run();
-  }
-}