Artem Bilan
2017-09-29 10:38:01 -04:00
committed by Soby Chacko
parent a07a0017bb
commit fd48a1d0eb

View File

@@ -37,6 +37,7 @@ import org.apache.kafka.common.serialization.ByteArrayDeserializer;
import org.apache.kafka.common.serialization.ByteArraySerializer;
import org.apache.kafka.common.utils.Utils;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.cloud.stream.binder.AbstractMessageChannelBinder;
import org.springframework.cloud.stream.binder.Binder;
import org.springframework.cloud.stream.binder.BinderHeaders;
@@ -97,8 +98,7 @@ import org.springframework.util.concurrent.ListenableFutureCallback;
* @author Doug Saus
*/
public class KafkaMessageChannelBinder extends
AbstractMessageChannelBinder<ExtendedConsumerProperties<KafkaConsumerProperties>,
ExtendedProducerProperties<KafkaProducerProperties>, KafkaTopicProvisioner>
AbstractMessageChannelBinder<ExtendedConsumerProperties<KafkaConsumerProperties>, ExtendedProducerProperties<KafkaProducerProperties>, KafkaTopicProvisioner>
implements ExtendedPropertiesBinder<MessageChannel, KafkaConsumerProperties, KafkaProducerProperties> {
private final KafkaBinderConfigurationProperties configurationProperties;
@@ -150,31 +150,24 @@ public class KafkaMessageChannelBinder extends
@Override
protected MessageHandler createProducerMessageHandler(final ProducerDestination destination,
ExtendedProducerProperties<KafkaProducerProperties> producerProperties, MessageChannel errorChannel)
throws Exception {
throws Exception {
/*
* IMPORTANT: With a transactional binder, individual producer properties for
* Kafka are ignored; the global binder
* (spring.cloud.stream.kafka.binder.transaction.producer.*) properties are used
* instead, for all producers. A binder is transactional when
* IMPORTANT: With a transactional binder, individual producer properties for Kafka are
* ignored; the global binder (spring.cloud.stream.kafka.binder.transaction.producer.*)
* properties are used instead, for all producers. A binder is transactional when
* 'spring.cloud.stream.kafka.binder.transaction.transaction-id-prefix' has text.
*/
final ProducerFactory<byte[], byte[]> producerFB = this.transactionManager != null
? this.transactionManager.getProducerFactory()
: getProducerFactory(null, producerProperties);
? this.transactionManager.getProducerFactory()
: getProducerFactory(null, producerProperties);
Collection<PartitionInfo> partitions = provisioningProvider.getPartitionsForTopic(
producerProperties.getPartitionCount(),
false,
new Callable<Collection<PartitionInfo>>() {
@Override
public Collection<PartitionInfo> call() throws Exception {
Producer<byte[], byte[]> producer = producerFB.createProducer();
List<PartitionInfo> partitionsFor = producer.partitionsFor(destination.getName());
producer.close();
producerFB.destroy();
return partitionsFor;
}
producerProperties.getPartitionCount(), false,
() -> {
Producer<byte[], byte[]> producer = producerFB.createProducer();
List<PartitionInfo> partitionsFor = producer.partitionsFor(destination.getName());
producer.close();
((DisposableBean) producerFB).destroy();
return partitionsFor;
});
this.topicsInUse.put(destination.getName(), new TopicInformation(null, partitions));
if (producerProperties.getPartitionCount() < partitions.size()) {
@@ -184,12 +177,11 @@ public class KafkaMessageChannelBinder extends
+ partitions.size() + " of the topic. The larger number will be used instead.");
}
/*
* This is dirty; it relies on the fact that we, and the partition
* interceptor, share a hard reference to the producer properties instance.
* But I don't see another way to fix it since the interceptor has already
* been added to the channel, and we don't have access to the channel here; if
* we did, we could inject the proper partition count there.
* TODO: Consider this when doing the 2.0 binder restructuring.
* This is dirty; it relies on the fact that we, and the partition interceptor, share a
* hard reference to the producer properties instance. But I don't see another way to fix
* it since the interceptor has already been added to the channel, and we don't have
* access to the channel here; if we did, we could inject the proper partition count
* there. TODO: Consider this when doing the 2.0 binder restructuring.
*/
producerProperties.setPartitionCount(partitions.size());
}
@@ -212,7 +204,8 @@ public class KafkaMessageChannelBinder extends
if (!patterns.contains("!" + MessageHeaders.ID)) {
patterns.add(0, "!" + MessageHeaders.ID);
}
DefaultKafkaHeaderMapper headerMapper = new DefaultKafkaHeaderMapper(patterns.toArray(new String[patterns.size()]));
DefaultKafkaHeaderMapper headerMapper = new DefaultKafkaHeaderMapper(
patterns.toArray(new String[patterns.size()]));
handler.setHeaderMapper(headerMapper);
}
return handler;
@@ -270,16 +263,11 @@ public class KafkaMessageChannelBinder extends
Collection<PartitionInfo> allPartitions = provisioningProvider.getPartitionsForTopic(partitionCount,
extendedConsumerProperties.getExtension().isAutoRebalanceEnabled(),
new Callable<Collection<PartitionInfo>>() {
@Override
public Collection<PartitionInfo> call() throws Exception {
Consumer<?, ?> consumer = consumerFactory.createConsumer();
List<PartitionInfo> partitionsFor = consumer.partitionsFor(destination.getName());
consumer.close();
return partitionsFor;
}
() -> {
Consumer<?, ?> consumer = consumerFactory.createConsumer();
List<PartitionInfo> partitionsFor = consumer.partitionsFor(destination.getName());
consumer.close();
return partitionsFor;
});
Collection<PartitionInfo> listenedPartitions;
@@ -313,9 +301,8 @@ public class KafkaMessageChannelBinder extends
}
int concurrency = Math.min(extendedConsumerProperties.getConcurrency(), listenedPartitions.size());
@SuppressWarnings("rawtypes")
final ConcurrentMessageListenerContainer<?, ?> messageListenerContainer =
new ConcurrentMessageListenerContainer(
consumerFactory, containerProperties) {
final ConcurrentMessageListenerContainer<?, ?> messageListenerContainer = new ConcurrentMessageListenerContainer(
consumerFactory, containerProperties) {
@Override
public void stop(Runnable callback) {
@@ -379,7 +366,8 @@ public class KafkaMessageChannelBinder extends
final byte[] key = record.key() != null ? Utils.toArray(ByteBuffer.wrap((byte[]) record.key()))
: null;
final byte[] payload = record.value() != null
? Utils.toArray(ByteBuffer.wrap((byte[]) record.value())) : null;
? Utils.toArray(ByteBuffer.wrap((byte[]) record.value()))
: null;
String dlqName = StringUtils.hasText(extendedConsumerProperties.getExtension().getDlqName())
? extendedConsumerProperties.getExtension().getDlqName()
: "error." + destination.getName() + "." + group;