spring boot app to integrate kafka with active mq - spring-boot

Question

i'm trying to build a spring boot app that reads messages from kafka and put them into activeMQ
and vice versa (read from activeMQ and write to kafka)
i didn't find any useful tutorial to jumpstart my project

Answer 1

See Spring Integration and the Spring Integration Extension for Apache Kafka.
Use inbound and outbound channel adapters
jms -> kafka
kafka -> jms
Kafka Connect also has some capabilities in this space, but I am not familiar with it.
EDIT
This simple Spring Boot app shows transferring data from Kafka to RabbitMQ and vice versa:
package com.example.demo;
import org.apache.kafka.clients.admin.NewTopic;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.core.QueueBuilder;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.ApplicationRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.kafka.annotation.KafkaListener;
import org.springframework.kafka.config.TopicBuilder;
import org.springframework.kafka.core.KafkaTemplate;
#SpringBootApplication
public class So61069735Application {
public static void main(String[] args) {
SpringApplication.run(So61069735Application.class, args);
}
#Autowired
private KafkaTemplate<String, String> kafkaTemplate;
#Autowired
private RabbitTemplate rabbitTemplate;
#Bean
public ApplicationRunner toKafka() {
return args -> this.kafkaTemplate.send("so61069735-1", "foo");
}
#KafkaListener(id = "so61069735-1", topics = "so61069735-1")
public void listen1(String in) {
System.out.println("From Kafka: " + in);
this.rabbitTemplate.convertAndSend("so61069735-2", in.toUpperCase());
}
#RabbitListener(queues = "so61069735-2")
public void listen2(String in) {
System.out.println("From Rabbit: " + in);
this.kafkaTemplate.send("so61069735-3", in + in);
}
#KafkaListener(id = "so61069735-3", topics = "so61069735-3")
public void listen(String in) {
System.out.println("Final: " + in);
}
#Bean
public NewTopic topic1() {
return TopicBuilder.name("so61069735-1").partitions(1).replicas(1).build();
}
#Bean
public Queue queue() {
return QueueBuilder.durable("so61069735-2").build();
}
#Bean
public NewTopic topic2() {
return TopicBuilder.name("so61069735-3").partitions(1).replicas(1).build();
}
}
spring.kafka.consumer.auto-offset-reset=earliest
Result
From Kafka: foo
From Rabbit: FOO
Final: FOOFOO