Camel Kafka consumer/producer

This is a simple integration I used with springboot, camel, kafka. I had to consume from a topic and do some logic to produce on another topic. I followed the same idea to develop a "topic switcher" that chose on what topic to produce (not in this post but the solution is immediate).
The routebuilder is the main camel class that call "getBody" method on a bean that do the magic. The bean call back the routebuilder to produce on Kafka.



//ROUTEBUILDER:

@Component
public class MyRouteBuilder extends RouteBuilder {

    @Override
    public void configure() throws Exception {

        from("kafka:{{consumer.topic}}?brokers={{kafka.brokers}}&consumersCount={{consumer.consumersCount}}&groupId={{consumer.group}}")
                .routeId("FromKafka")
                .log("------- ROUTE BUILDER -------")
                .onException(Exception.class)
                .log(LoggingLevel.ERROR, "crash-data-stream", "Invalid Input")
                .maximumRedeliveries(2).redeliveryDelay(30000)
                .end()
                .to("bean:externalBean?method=getBody(${body})");

        from("direct:myproducer")
                .routeId("myproducer")
                .to("kafka:{{producer.topic}}?brokers={{kafka.brokers}}")
                ;
    }
}


----------------------------------

//EXTERNAL BEAN

@Service
public class ExternalBean {

    @EndpointInject("direct:myproducer")
    ProducerTemplate producer;
 
    public void getBody(String body) throws Exception {
        //do stuff and send back to camel
        myproducer.sendBody(body);
    }

}