import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
+import org.springframework.kafka.support.serializer.JsonDeserializer;
import java.util.Properties;
import java.util.concurrent.ExecutorService;
public class ApplicationConfiguration
{
@Bean
- public Consumer<ConsumerRecord<String, Long>> consumer()
+ public Consumer<ConsumerRecord<String, ClientMessage>> consumer()
{
return (record) ->
{
}
@Bean
- public EndlessConsumer<String, Long> endlessConsumer(
- KafkaConsumer<String, Long> kafkaConsumer,
+ public EndlessConsumer<String, ClientMessage> endlessConsumer(
+ KafkaConsumer<String, ClientMessage> kafkaConsumer,
ExecutorService executor,
- Consumer<ConsumerRecord<String, Long>> handler,
+ Consumer<ConsumerRecord<String, ClientMessage>> handler,
ApplicationProperties properties)
{
return
}
@Bean(destroyMethod = "close")
- public KafkaConsumer<String, Long> kafkaConsumer(ApplicationProperties properties)
+ public KafkaConsumer<String, ClientMessage> kafkaConsumer(ApplicationProperties properties)
{
Properties props = new Properties();
props.put("auto.offset.reset", properties.getAutoOffsetReset());
props.put("metadata.max.age.ms", "1000");
props.put("key.deserializer", StringDeserializer.class.getName());
- props.put("value.deserializer", LongDeserializer.class.getName());
+ props.put("value.deserializer", JsonDeserializer.class.getName());
+ props.put(JsonDeserializer.TYPE_MAPPINGS, "message:" + ClientMessage.class.getName());
+ props.put(JsonDeserializer.TRUSTED_PACKAGES, "de.juplo.kafka");
return new KafkaConsumer<>(props);
}
import org.springframework.boot.test.context.TestConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Import;
+import org.springframework.kafka.support.serializer.JsonSerializer;
import org.springframework.kafka.test.context.EmbeddedKafka;
import org.springframework.test.context.TestPropertySource;
import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.function.BiConsumer;
+import java.util.function.BiFunction;
import java.util.function.Consumer;
-import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
@Autowired
KafkaProducer<String, Bytes> kafkaProducer;
@Autowired
- KafkaConsumer<String, Long> kafkaConsumer;
+ KafkaConsumer<String, ClientMessage> kafkaConsumer;
@Autowired
KafkaConsumer<Bytes, Bytes> offsetConsumer;
@Autowired
@Autowired
ExecutorService executor;
- Consumer<ConsumerRecord<String, Long>> testHandler;
- EndlessConsumer<String, Long> endlessConsumer;
+ Consumer<ConsumerRecord<String, ClientMessage>> testHandler;
+ EndlessConsumer<String, ClientMessage> endlessConsumer;
Map<TopicPartition, Long> oldOffsets;
Map<TopicPartition, Long> newOffsets;
- Set<ConsumerRecord<String, Long>> receivedRecords;
+ Set<ConsumerRecord<String, ClientMessage>> receivedRecords;
/** Tests methods */
{
send100Messages((partition, key, counter) ->
{
- Bytes value = new Bytes(valueSerializer.serialize(TOPIC, counter));
+ Bytes value = serialize(key, counter);
return new ProducerRecord<>(TOPIC, partition, key, value);
});
{
Bytes value = counter == 77
? new Bytes(stringSerializer.serialize(TOPIC, "BOOM!"))
- : new Bytes(valueSerializer.serialize(TOPIC, counter));
+ : serialize(key, counter);
return new ProducerRecord<>(TOPIC, partition, key, value);
});
ProducerRecord<String, Bytes> record =
recordGenerator.generate(partition, Integer.toString(partition*10+key%2), ++i);
+ record.headers().add("__TypeId__", "message".getBytes());
kafkaProducer.send(record, (metadata, e) ->
{
if (metadata != null)
}
}
+ Bytes serialize(String key, Long value)
+ {
+ ClientMessage message = new ClientMessage();
+ message.setClient(key);
+ message.setMessage(value.toString());
+ return new Bytes(valueSerializer.serialize(TOPIC, message));
+ }
+
@BeforeEach
public void init()
newOffsets.put(tp, offset - 1);
});
- Consumer<ConsumerRecord<String, Long>> captureOffsetAndExecuteTestHandler =
+ Consumer<ConsumerRecord<String, ClientMessage>> captureOffsetAndExecuteTestHandler =
record ->
{
newOffsets.put(
public static class Configuration
{
@Bean
- Serializer<Long> serializer()
+ Serializer<ClientMessage> serializer()
{
- return new LongSerializer();
+ return new JsonSerializer<>();
}
@Bean