Package org.springframework.kafka.support.serializer

Class DelegatingByTopicSerializer

java.lang.Object

org.springframework.kafka.support.serializer.DelegatingByTopicSerialization<org.apache.kafka.common.serialization.Serializer<?>>

org.springframework.kafka.support.serializer.DelegatingByTopicSerializer

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.kafka.common.serialization.Serializer<Object>

public class DelegatingByTopicSerializer
extends DelegatingByTopicSerialization<org.apache.kafka.common.serialization.Serializer<?>>
implements org.apache.kafka.common.serialization.Serializer<Object>

A Serializer that delegates to other serializers based on a topic pattern.

Since:

2.8

Author:

Gary Russell

Field Summary

Fields inherited from class org.springframework.kafka.support.serializer.DelegatingByTopicSerialization

CASE_SENSITIVE, KEY_SERIALIZATION_TOPIC_CONFIG, KEY_SERIALIZATION_TOPIC_DEFAULT, VALUE_SERIALIZATION_TOPIC_CONFIG, VALUE_SERIALIZATION_TOPIC_DEFAULT

Constructor Summary

Constructors

Constructor	Description
DelegatingByTopicSerializer()	Construct an instance that will be configured in configure(Map, boolean) with producer properties DelegatingByTopicSerialization.VALUE_SERIALIZATION_TOPIC_CONFIG and DelegatingByTopicSerialization.KEY_SERIALIZATION_TOPIC_CONFIG.
DelegatingByTopicSerializer(Map<Pattern,org.apache.kafka.common.serialization.Serializer<?>> delegates, org.apache.kafka.common.serialization.Serializer<?> defaultDelegate)	Construct an instance with the supplied mapping of topic patterns to delegate serializers.

Method Summary

Modifier and Type	Method	Description
void	configure(Map<String,?> configs, boolean isKey)
protected org.apache.kafka.common.serialization.Serializer<?>	configureDelegate(Map<String,?> configs, boolean isKey, org.apache.kafka.common.serialization.Serializer<?> delegate)	Configure the delegate.
protected boolean	isInstance(Object instance)	Return true if this object is an instance of T.
byte[]	serialize(String topic, Object data)
byte[]	serialize(String topic, org.apache.kafka.common.header.Headers headers, Object data)

Methods inherited from class org.springframework.kafka.support.serializer.DelegatingByTopicSerialization

addDelegate, build, buildDefault, close, findDelegate, instantiateAndConfigure, removeDelegate, setCaseSensitive

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.kafka.common.serialization.Serializer

close

Constructor Details

DelegatingByTopicSerializer

public DelegatingByTopicSerializer()

Construct an instance that will be configured in configure(Map, boolean) with producer properties DelegatingByTopicSerialization.VALUE_SERIALIZATION_TOPIC_CONFIG and DelegatingByTopicSerialization.KEY_SERIALIZATION_TOPIC_CONFIG.

DelegatingByTopicSerializer

public DelegatingByTopicSerializer(Map<Pattern,org.apache.kafka.common.serialization.Serializer<?>> delegates,
 org.apache.kafka.common.serialization.Serializer<?> defaultDelegate)

Construct an instance with the supplied mapping of topic patterns to delegate serializers.

Parameters:

delegates - the map of delegates.

defaultDelegate - the default to use when no topic name match.

Method Details

configure

public void configure(Map<String,?> configs,
 boolean isKey)

Specified by:

configure in interface org.apache.kafka.common.serialization.Serializer<Object>

Overrides:

configure in class DelegatingByTopicSerialization<org.apache.kafka.common.serialization.Serializer<?>>

configureDelegate

protected org.apache.kafka.common.serialization.Serializer<?> configureDelegate(Map<String,?> configs,
 boolean isKey,
 org.apache.kafka.common.serialization.Serializer<?> delegate)

Description copied from class: DelegatingByTopicSerialization

Configure the delegate.

Specified by:

configureDelegate in class DelegatingByTopicSerialization<org.apache.kafka.common.serialization.Serializer<?>>

Parameters:

configs - the configs.

isKey - true if this is for keys.

delegate - the delegate.

Returns:

the delegate.

isInstance

protected boolean isInstance(Object instance)

Description copied from class: DelegatingByTopicSerialization

Return true if this object is an instance of T.

Specified by:

isInstance in class DelegatingByTopicSerialization<org.apache.kafka.common.serialization.Serializer<?>>

Parameters:

instance - the delegate.

Returns:

true if a T.

serialize

public byte[] serialize(String topic,
 Object data)

Specified by:

serialize in interface org.apache.kafka.common.serialization.Serializer<Object>

serialize

public byte[] serialize(String topic,
 org.apache.kafka.common.header.Headers headers,
 Object data)

Specified by:

serialize in interface org.apache.kafka.common.serialization.Serializer<Object>