io.quicksign.kafka.crypto.pairing.internal

Class CryptoAwareSerializerWrapper<T>

java.lang.Object

io.quicksign.kafka.crypto.pairing.internal.CryptoAwareSerializerWrapper<T>

Type Parameters:

T -

All Implemented Interfaces:

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

public class CryptoAwareSerializerWrapper<T>
extends Object
implements org.apache.kafka.common.serialization.ExtendedSerializer<T>

A wrapper for Serializer. It will call the KeyReferenceExtractor and then serialize the data using the underlying serializer

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.kafka.common.serialization.ExtendedSerializer

org.apache.kafka.common.serialization.ExtendedSerializer.Wrapper<T>

Constructor Summary

Constructors

Constructor and Description
CryptoAwareSerializerWrapper(org.apache.kafka.common.serialization.Serializer<T> rawSerializer, KeyReferenceExtractor keyReferenceExtractor, ThreadLocal<byte[]> keyRefHolder)

Method Summary

Modifier and Type	Method and Description
void	close()
void	configure(Map<String,?> configs, boolean isKey)
byte[]	serialize(String topic, org.apache.kafka.common.header.Headers headers, T data) Call the KeyReferenceExtractor with the topic and the data and set the result in the kafka header KafkaCryptoConstants.KEY_REF_HEADER
byte[]	serialize(String topic, T data) Call the KeyReferenceExtractor with the topic and the data and set the computed value into the ThreadLocal reference holder.

Methods inherited from class java.lang.Object

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

Constructor Detail

CryptoAwareSerializerWrapper

public CryptoAwareSerializerWrapper(org.apache.kafka.common.serialization.Serializer<T> rawSerializer,
                                    KeyReferenceExtractor keyReferenceExtractor,
                                    ThreadLocal<byte[]> keyRefHolder)

Parameters:

rawSerializer - the Serializer to use

keyReferenceExtractor - the KeyReferenceExtractor to use

keyRefHolder - the ThreadLocal to share the keyref (only used in the context of a Kafka Stream)

Method Detail

configure

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

Specified by:

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

serialize

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

Call the KeyReferenceExtractor with the topic and the data and set the computed value into the ThreadLocal reference holder.

This method is called in the context of a kafka stream and not in the Kafka Producer

Specified by:

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

Parameters:

topic -

data -

Returns:

the result of the underlying serializer

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in interface org.apache.kafka.common.serialization.Serializer<T>

serialize

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

Call the KeyReferenceExtractor with the topic and the data and set the result in the kafka header KafkaCryptoConstants.KEY_REF_HEADER

This method is called by the Kafka Producer

Specified by:

serialize in interface org.apache.kafka.common.serialization.ExtendedSerializer<T>

Parameters:

topic -

headers -

data -

Returns:

the result of the underlying serializer