Kafka Clients Enhanced

This project provides wrappers around Apache Kafka official java client. The wrappers bring best practice initial config for exactly once delivery and extend the basic functionality for a more easy and resilient use.

Currently only KafkaProducerWrapper is supported.

KafkaProducerWrapper

This wrapper provides out of the box config to support exactly once delivery. When all of the native client retries failed, the wrapper stores the message in a local persistent store. Periodically it retries to re-send them while preserving original messages order (only between the failed ones).

Prerequisites

Java >= 8 Maven Git

Installing

git clone https://github.com/personali/kafka-clients-enhanced cd kafka-clients-enhanced mvn clean install

Adding to project

Add the following dependency to your pom.xml:

<dependency>
  <groupId>com.personali</groupId>
  <artifactId>kafka-clients-enhanced</artifactId>
  <version>1.0-SNAPSHOT</version>
</dependency>

Usage example

KafkaProducerWrapper producer = new KafkaProducerWrapper<String,Event>( "localhost:9092", "http://localhost:8081", "avro-topic", new org.apache.kafka.common.serialization.StringSerializer(), new io.confluent.kafka.serializers.KafkaAvroSerializer(), new org.apache.kafka.common.serialization.StringDeserializer(), new io.confluent.kafka.serializers.KafkaAvroDeserializer(), false );

producer.send("key1", avroObjectInstance);

Authors

• Or Sher