package de.juplo.kafka.wordcount.counter;
-import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
+import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.clients.consumer.ConsumerRecord;
+import org.apache.kafka.clients.producer.ProducerConfig;
+import org.apache.kafka.streams.KeyValue;
import org.apache.kafka.streams.state.KeyValueBytesStoreSupplier;
import org.apache.kafka.streams.state.Stores;
import org.junit.jupiter.api.BeforeEach;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Primary;
import org.springframework.kafka.annotation.KafkaListener;
-import org.springframework.kafka.core.KafkaTemplate;
+import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory;
+import org.springframework.kafka.core.*;
+import org.springframework.kafka.support.serializer.JsonDeserializer;
+import org.springframework.kafka.support.serializer.JsonSerializer;
import org.springframework.kafka.test.context.EmbeddedKafka;
import java.time.Duration;
import java.util.LinkedList;
import java.util.List;
+import java.util.Map;
+import java.util.Properties;
import static de.juplo.kafka.wordcount.counter.CounterApplicationIT.*;
+import static de.juplo.kafka.wordcount.counter.TestData.convertToMap;
import static org.awaitility.Awaitility.*;
static final int PARTITIONS = 2;
@Autowired
- KafkaTemplate<String, String> kafkaTemplate;
- @Autowired
- ObjectMapper mapper;
+ KafkaTemplate<String, Word> kafkaTemplate;
@Autowired
Consumer consumer;
await("Expexted converted data")
.atMost(Duration.ofSeconds(10))
- .untilAsserted(() -> TestData.assertExpectedResult(consumer.received, mapper));
+ .untilAsserted(() -> TestData.assertExpectedResult(consumer.getReceivedMessages()));
}
@RequiredArgsConstructor
static class Consumer
{
- private final List<Message> received = new LinkedList<>();
+ private final List<KeyValue<Word, WordCounter>> received = new LinkedList<>();
@KafkaListener(groupId = "TEST", topics = TOPIC_OUT)
- public void receive(ConsumerRecord<String, String> record)
+ public synchronized void receive(ConsumerRecord<Word, WordCounter> record)
{
log.debug("Received message: {}", record);
- received.add(Message.of(record.key(),record.value()));
+ received.add(KeyValue.pair(record.key(),record.value()));
+ }
+
+ synchronized List<KeyValue<Word, WordCounter>> getReceivedMessages()
+ {
+ return received;
}
}
@TestConfiguration
static class Configuration
{
+ @Bean
+ ProducerFactory<?, ?> producerFactory(Properties streamProcessorProperties)
+ {
+ Map<String, Object> propertyMap = convertToMap(streamProcessorProperties);
+
+ propertyMap.put(
+ ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG,
+ JsonSerializer.class.getName());
+ propertyMap.put(
+ ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG,
+ JsonSerializer.class.getName());
+
+ return new DefaultKafkaProducerFactory<>(propertyMap);
+ }
+
+ @Bean
+ ConcurrentKafkaListenerContainerFactory<?, ?> kafkaListenerContainerFactory(
+ Properties streamProcessorProperties)
+ {
+ Map<String, Object> propertyMap = convertToMap(streamProcessorProperties);
+
+ propertyMap.put(
+ ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG,
+ JsonDeserializer.class.getName());
+ propertyMap.put(
+ ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG,
+ JsonDeserializer.class.getName());
+
+ ConsumerFactory<? super Object, ? super Object> consumerFactory =
+ new DefaultKafkaConsumerFactory<>(propertyMap);
+
+ ConcurrentKafkaListenerContainerFactory<Object, Object> kafkaListenerContainerFactory =
+ new ConcurrentKafkaListenerContainerFactory<>();
+
+ kafkaListenerContainerFactory.setConsumerFactory(consumerFactory);
+
+ return kafkaListenerContainerFactory;
+ }
+
@Bean
Consumer consumer()
{