Create an ObjectMapperCustomizer to allow tailoring ObjectMapper through media types configuration

[gregturn]

Create a hook for users to customize the ObjectMapper created in the serializer, like this:

public interface ObjectMapperCustomizer extends Consumer<ObjectMapper> {
}

Then, HalConfiguration could add withObjectMapperCustomizer(ObjectMapperCustomizer), allowing users to supply a lambda function.

Jackson2HalModule can then leverage halConfiguration.getObjectMapperCustomizer.accept(mapper) after getting or creating the ObjectMapper.

[toedter]

Seem like a great idea, I implemented this in https://github.com/toedter/spring-hateoas-jsonapi
Now the object mapper can be customized like

        @Bean
        JsonApiConfiguration jsonApiConfiguration() {
            return new JsonApiConfiguration()
                    .withObjectMapperCustomizer(objectMapper -> {
                        objectMapper.registerModule(new JavaTimeModule());
                        objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
                    });
        }

Question: Why would you introduce a new interface instead of just using

withObjectMapperCustomizer(Consumer<ObjectMapper>)

[gregturn]

Actually, your suggestion makes sense. I was away from my IDE and couldn't remember if a concrete interface was needed or not. Clearly not.