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spring-kafka

Using spring-kafka as configuration framework

My question may sound weird, but still. Is it possible to use spring-kafka only as a configuration framework - like parsing application.properties or application.yaml and instantiate consumer and producer without Spring Boot Autoconfiguration facilities? Basically, minimal sprinkles of spring and spring-kafka for just public static void main application.

Thank you

Solution

  • Not sure what you mean with a "configuration framework", but from your description it sounds like you still want to use spring-kafka. So, there is nothing wrong to have a PropertySourcesPlaceholderConfigurer to resolve @Value annotations for configuration properties against your application.properties in the @PropertySource.

    See docs for more info: https://docs.spring.io/spring/docs/5.2.4.RELEASE/spring-framework-reference/core.html#beans

    See sample in Spring for Apache Kafka docs how to configure spring-kafka without Spring Boot: https://docs.spring.io/spring-kafka/docs/2.4.3.RELEASE/reference/html/#with-java-configuration

    So, you need to combine spring-kafka feature with that @PropertySource + @Value for parsing configuration properties.

    Essentially you are going to do whatever Spring Boot does for you ;-)