Package org.springframework.kafka.support.converter

Class StringJsonMessageConverter

java.lang.Object

org.springframework.kafka.support.converter.MessagingMessageConverter

org.springframework.kafka.support.converter.JsonMessageConverter

org.springframework.kafka.support.converter.StringJsonMessageConverter

All Implemented Interfaces:

MessageConverter, RecordMessageConverter

public class StringJsonMessageConverter
extends JsonMessageConverter

JSON Message converter - String on output, String, Bytes, or byte[] on input. Used in conjunction with Kafka StringSerializer/(StringDeserializer, BytesDeserializer, or ByteArrayDeserializer). Consider using the ByteArrayJsonMessageConverter instead to avoid unnecessary String->byte[] conversion.

Author:

Gary Russell, Artem Bilan, Dariusz Szablinski, Vladimir Loginov

Field Summary

Fields inherited from class org.springframework.kafka.support.converter.MessagingMessageConverter

logger

Constructor Summary

Constructors

Constructor	Description
StringJsonMessageConverter()
StringJsonMessageConverter(com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Method Summary

Modifier and Type	Method	Description
protected Object	convertPayload(Message<?> message)	Subclasses can convert the payload; by default, it's sent unchanged to Kafka.

Methods inherited from class org.springframework.kafka.support.converter.JsonMessageConverter

extractAndConvertValue, getObjectMapper, getTypeMapper, initialRecordHeaders, setTypeMapper

Methods inherited from class org.springframework.kafka.support.converter.MessagingMessageConverter

fromMessage, getMessagingConverter, setGenerateMessageId, setGenerateTimestamp, setHeaderMapper, setMessagingConverter, setRawRecordHeader, toMessage

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

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

commonHeaders

Constructor Details

StringJsonMessageConverter

public StringJsonMessageConverter()

StringJsonMessageConverter

public StringJsonMessageConverter(com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Method Details

convertPayload

protected Object convertPayload(Message<?> message)

Description copied from class: MessagingMessageConverter

Subclasses can convert the payload; by default, it's sent unchanged to Kafka.

Overrides:

convertPayload in class JsonMessageConverter

Parameters:

message - the message.

Returns:

the payload.