import java.util.Properties;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Future;
@Slf4j
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,
this.executor = executor;
this.id = clientId;
this.topic = topic;
- this.acks = acks;
this.throttleMs = throttleMs;
Properties props = new Properties();
{
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)
{
}
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()
log.info("{} - Starting - produced {} messages before", id, produced);
running = true;
- future = executor.submit(this);
+ executor.submit(this);
}
public synchronized void stop() throws ExecutionException, InterruptedException
log.info("{} - Stopping...", id);
running = false;
- future.get();
- log.info("{} - Stopped - produced {} messages so far", id, produced);
}
@PreDestroy