Interface RecordMessageConverter

All Superinterfaces:

MessageConverter

All Known Implementing Classes:

ByteArrayJacksonJsonMessageConverter, ByteArrayJsonMessageConverter, BytesJacksonJsonMessageConverter, BytesJsonMessageConverter, JacksonJsonMessageConverter, JacksonProjectingMessageConverter, JsonMessageConverter, MessagingMessageConverter, ProjectingMessageConverter, StringJacksonJsonMessageConverter, StringJsonMessageConverter

public interface RecordMessageConverter
extends MessageConverter

A Kafka-specific Message converter strategy.

Since:

1.1

Author:

Gary Russell

Method Summary

Modifier and Type	Method	Description
org.apache.kafka.clients.producer.ProducerRecord<?,?>	fromMessage(Message<?> message, @Nullable String defaultTopic)	Convert a message to a producer record.
@NonNull Message<?>	toMessage(org.apache.kafka.clients.consumer.ConsumerRecord<?,?> record, @Nullable Object acknowledgment, @Nullable Object consumer, @Nullable Type payloadType)	Convert a ConsumerRecord to a Message.

Methods inherited from interface org.springframework.kafka.support.converter.MessageConverter

commonHeaders

Method Details

toMessage

@NonNull Message<?> toMessage(org.apache.kafka.clients.consumer.ConsumerRecord<?,?> record,
 @Nullable Object acknowledgment,
 @Nullable Object consumer,
 @Nullable Type payloadType)

Convert a ConsumerRecord to a Message.

Parameters:

record - the record.

acknowledgment - the acknowledgment (can be Acknowledgment or ShareAcknowledgment).

consumer - the consumer (can be Consumer or ShareConsumer).

payloadType - the required payload type.

Returns:

the message.

fromMessage

org.apache.kafka.clients.producer.ProducerRecord<?,?> fromMessage(Message<?> message,
 @Nullable String defaultTopic)

Convert a message to a producer record.

Parameters:

message - the message.

defaultTopic - the default topic to use if no header found.

Returns:

the producer record.