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[Prototype] Timing out generation of record via avro-random-generator in datagen … #104

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[Prototype] Timing out generation of record via avro-random-generator in datagen … #104

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15 changes: 14 additions & 1 deletion src/main/java/io/confluent/kafka/connect/datagen/DatagenTask.java
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,8 @@

import io.confluent.avro.random.generator.Generator;
import io.confluent.connect.avro.AvroData;

import java.time.Duration;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
Expand All @@ -26,6 +28,7 @@
import java.util.Map;
import java.util.Random;
import java.util.Set;
import java.util.concurrent.*;
import java.util.stream.Collectors;
import org.apache.avro.generic.GenericData.Record;
import org.apache.avro.generic.GenericRecord;
Expand All @@ -51,6 +54,9 @@ public class DatagenTask extends SourceTask {
public static final String CURRENT_ITERATION = "current.iteration";
public static final String RANDOM_SEED = "random.seed";

private final ExecutorService executor = Executors.newSingleThreadExecutor();
private static final Duration timeout = Duration.ofMillis(100);


private DatagenConnectorConfig config;
private String topic;
Expand Down Expand Up @@ -167,7 +173,14 @@ public List<SourceRecord> poll() throws InterruptedException {
}
}

final Object generatedObject = generator.generate();
final Object generatedObject;
Future<Object> generatedObjectFuture = executor.submit(() -> generator.generate());
try {
generatedObject = generatedObjectFuture.get(timeout.toMillis(), TimeUnit.MILLISECONDS);
} catch (TimeoutException | ExecutionException | InterruptedException ex) {
throw new ConnectException("Task failed with error", ex);
}

if (!(generatedObject instanceof GenericRecord)) {
throw new RuntimeException(String.format(
"Expected Avro Random Generator to return instance of GenericRecord, found %s instead",
Expand Down