Merge der überarbeiteten Compose-Konfiguration ('endless-stream-producer')

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

diff --git a/src/main/java/de/juplo/kafka/EndlessProducer.java b/src/main/java/de/juplo/kafka/EndlessProducer.java
index 43b0e41..df5ff01 100644 (file)
--- a/src/main/java/de/juplo/kafka/EndlessProducer.java
+++ b/src/main/java/de/juplo/kafka/EndlessProducer.java
@@ -9,7 +9,6 @@ import javax.annotation.PreDestroy;
 import java.util.Properties;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Future;
 
 
 @Slf4j
@@ -18,14 +17,12 @@ public class EndlessProducer implements Runnable
   private final ExecutorService executor;
   private final String id;
   private final String topic;
-  private final String acks;
   private final int throttleMs;
   private final KafkaProducer<String, String> producer;
 
   private boolean running = false;
   private long i = 0;
   private long produced = 0;
-  private Future<?> future = null;
 
   public EndlessProducer(
       ExecutorService executor,
@@ -38,7 +35,6 @@ public class EndlessProducer implements Runnable
     this.executor = executor;
     this.id = clientId;
     this.topic = topic;
-    this.acks = acks;
     this.throttleMs = throttleMs;
 
     Properties props = new Properties();
@@ -58,54 +54,7 @@ public class EndlessProducer implements Runnable
     {
       for (; running; i++)
       {
-        final long time = System.currentTimeMillis();
-
-        final ProducerRecord<String, String> record = new ProducerRecord<>(
-            topic,                 // Topic
-            Long.toString(i % 10), // Key
-            Long.toString(i)       // 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,
-            i,
-            record.key(),
-            now - time
-        );
+        send(Long.toString(i%10), Long.toString(i));
 
         if (throttleMs > 0)
         {
@@ -124,8 +73,21 @@ public class EndlessProducer implements Runnable
     }
     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)
+  {
+    // TODO: Die übergebene Nachricht versenden
   }
 
   public synchronized void start()
@@ -135,7 +97,7 @@ public class EndlessProducer implements Runnable
 
     log.info("{} - Starting - produced {} messages before", id, produced);
     running = true;
-    future = executor.submit(this);
+    executor.submit(this);
   }
 
   public synchronized void stop() throws ExecutionException, InterruptedException
@@ -145,8 +107,6 @@ public class EndlessProducer implements Runnable
 
     log.info("{} - Stopping...", id);
     running = false;
-    future.get();
-    log.info("{} - Stopped - produced {} messages so far", id, produced);
   }
 
   @PreDestroy