From: Kai Moritz <kai@juplo.de>
Date: Wed, 25 Sep 2024 16:19:36 +0000 (+0200)
Subject: Einheitliche Benennung des Producers -- MOVE
X-Git-Url: http://juplo.de/gitweb/?a=commitdiff_plain;h=b7bf777e8ba26dc6667b84c365260910e62a62fc;p=demos%2Fkafka%2Ftraining

Einheitliche Benennung des Producers -- MOVE
---

diff --git a/src/main/java/de/juplo/kafka/EndlessProducer.java b/src/main/java/de/juplo/kafka/EndlessProducer.java
deleted file mode 100644
index 30fefab..0000000
--- a/src/main/java/de/juplo/kafka/EndlessProducer.java
+++ /dev/null
@@ -1,162 +0,0 @@
-package de.juplo.kafka;
-
-import lombok.extern.slf4j.Slf4j;
-import org.apache.kafka.clients.producer.ProducerRecord;
-import org.apache.kafka.clients.producer.RecordMetadata;
-import org.springframework.kafka.core.KafkaTemplate;
-import org.springframework.kafka.support.SendResult;
-import org.springframework.util.concurrent.ListenableFuture;
-
-import javax.annotation.PreDestroy;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.ExecutorService;
-
-
-@Slf4j
-public class EndlessProducer implements Runnable
-{
-  private final ExecutorService executor;
-  private final String id;
-  private final int throttleMs;
-  private final KafkaTemplate<String, String> kafkaTemplate;
-
-  private boolean running = false;
-  private long i = 0;
-  private long produced = 0;
-
-  public EndlessProducer(
-      ExecutorService executor,
-      String clientId,
-      int throttleMs,
-      KafkaTemplate<String, String> kafkaTemplate)
-  {
-    this.executor = executor;
-    this.id = clientId;
-    this.throttleMs = throttleMs;
-    this.kafkaTemplate = kafkaTemplate;
-  }
-
-  @Override
-  public void run()
-  {
-    try
-    {
-      for (; running; i++)
-      {
-        send(Long.toString(i%10), Long.toString(i));
-
-        if (throttleMs > 0)
-        {
-          try
-          {
-            Thread.sleep(throttleMs);
-          }
-          catch (InterruptedException e)
-          {
-            log.warn("{} - Interrupted while throttling!", e);
-          }
-        }
-      }
-
-      log.info("{} - Done", id);
-    }
-    catch (Exception e)
-    {
-      log.error("{} - Unexpected Exception:", id, e);
-    }
-    finally
-    {
-      synchronized (this)
-      {
-        running = false;
-        log.info("{} - Stopped - produced {} messages so far", id, produced);
-      }
-    }
-  }
-
-  void send(String key, String value)
-  {
-    final long time = System.currentTimeMillis();
-
-    ListenableFuture<SendResult<String, String>> listenableFuture = kafkaTemplate.sendDefault(key, value);
-    listenableFuture.addCallback(
-      result ->
-      {
-        long now = System.currentTimeMillis();
-        RecordMetadata metadata = result.getRecordMetadata();
-        ProducerRecord<String, String> record = result.getProducerRecord();
-
-        // 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
-        );
-      },
-      e ->
-      {
-        long now = System.currentTimeMillis();
-
-        // HANDLE ERROR
-        log.error(
-            "{} - ERROR key={} latency={}ms: {}",
-            id,
-            key,
-            now - time,
-            e.toString()
-        );
-      });
-
-    long now = System.currentTimeMillis();
-    log.trace(
-        "{} - Queued #{} key={} latency={}ms",
-        id,
-        value,
-        key,
-        now - time
-    );
-  }
-
-  public synchronized void start()
-  {
-    if (running)
-      throw new IllegalStateException("Producer instance " + id + " is already running!");
-
-    log.info("{} - Starting - produced {} messages before", id, produced);
-    running = true;
-    executor.submit(this);
-  }
-
-  public synchronized void stop() throws ExecutionException, InterruptedException
-  {
-    if (!running)
-      throw new IllegalStateException("Producer instance " + id + " is not running!");
-
-    log.info("{} - Stopping...", id);
-    running = false;
-  }
-
-  @PreDestroy
-  public void destroy() throws ExecutionException, InterruptedException
-  {
-    log.info("{} - Destroy!", id);
-    try
-    {
-      stop();
-    }
-    catch (IllegalStateException e)
-    {
-      log.info("{} - Was already stopped", id);
-    }
-    finally
-    {
-      log.info("{}: Produced {} messages in total, exiting!", id, produced);
-    }
-  }
-}
diff --git a/src/main/java/de/juplo/kafka/ExampleProducer.java b/src/main/java/de/juplo/kafka/ExampleProducer.java
new file mode 100644
index 0000000..30fefab
--- /dev/null
+++ b/src/main/java/de/juplo/kafka/ExampleProducer.java
@@ -0,0 +1,162 @@
+package de.juplo.kafka;
+
+import lombok.extern.slf4j.Slf4j;
+import org.apache.kafka.clients.producer.ProducerRecord;
+import org.apache.kafka.clients.producer.RecordMetadata;
+import org.springframework.kafka.core.KafkaTemplate;
+import org.springframework.kafka.support.SendResult;
+import org.springframework.util.concurrent.ListenableFuture;
+
+import javax.annotation.PreDestroy;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+
+
+@Slf4j
+public class EndlessProducer implements Runnable
+{
+  private final ExecutorService executor;
+  private final String id;
+  private final int throttleMs;
+  private final KafkaTemplate<String, String> kafkaTemplate;
+
+  private boolean running = false;
+  private long i = 0;
+  private long produced = 0;
+
+  public EndlessProducer(
+      ExecutorService executor,
+      String clientId,
+      int throttleMs,
+      KafkaTemplate<String, String> kafkaTemplate)
+  {
+    this.executor = executor;
+    this.id = clientId;
+    this.throttleMs = throttleMs;
+    this.kafkaTemplate = kafkaTemplate;
+  }
+
+  @Override
+  public void run()
+  {
+    try
+    {
+      for (; running; i++)
+      {
+        send(Long.toString(i%10), Long.toString(i));
+
+        if (throttleMs > 0)
+        {
+          try
+          {
+            Thread.sleep(throttleMs);
+          }
+          catch (InterruptedException e)
+          {
+            log.warn("{} - Interrupted while throttling!", e);
+          }
+        }
+      }
+
+      log.info("{} - Done", id);
+    }
+    catch (Exception e)
+    {
+      log.error("{} - Unexpected Exception:", id, e);
+    }
+    finally
+    {
+      synchronized (this)
+      {
+        running = false;
+        log.info("{} - Stopped - produced {} messages so far", id, produced);
+      }
+    }
+  }
+
+  void send(String key, String value)
+  {
+    final long time = System.currentTimeMillis();
+
+    ListenableFuture<SendResult<String, String>> listenableFuture = kafkaTemplate.sendDefault(key, value);
+    listenableFuture.addCallback(
+      result ->
+      {
+        long now = System.currentTimeMillis();
+        RecordMetadata metadata = result.getRecordMetadata();
+        ProducerRecord<String, String> record = result.getProducerRecord();
+
+        // 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
+        );
+      },
+      e ->
+      {
+        long now = System.currentTimeMillis();
+
+        // HANDLE ERROR
+        log.error(
+            "{} - ERROR key={} latency={}ms: {}",
+            id,
+            key,
+            now - time,
+            e.toString()
+        );
+      });
+
+    long now = System.currentTimeMillis();
+    log.trace(
+        "{} - Queued #{} key={} latency={}ms",
+        id,
+        value,
+        key,
+        now - time
+    );
+  }
+
+  public synchronized void start()
+  {
+    if (running)
+      throw new IllegalStateException("Producer instance " + id + " is already running!");
+
+    log.info("{} - Starting - produced {} messages before", id, produced);
+    running = true;
+    executor.submit(this);
+  }
+
+  public synchronized void stop() throws ExecutionException, InterruptedException
+  {
+    if (!running)
+      throw new IllegalStateException("Producer instance " + id + " is not running!");
+
+    log.info("{} - Stopping...", id);
+    running = false;
+  }
+
+  @PreDestroy
+  public void destroy() throws ExecutionException, InterruptedException
+  {
+    log.info("{} - Destroy!", id);
+    try
+    {
+      stop();
+    }
+    catch (IllegalStateException e)
+    {
+      log.info("{} - Was already stopped", id);
+    }
+    finally
+    {
+      log.info("{}: Produced {} messages in total, exiting!", id, produced);
+    }
+  }
+}