Quarkus converter for microprofile configMapping not giving full object

Question

I have the following configuration:

my:
  filter:
      number-range:
        - range:
              from: +994700110000
              to: +994700110002

The ConfigMapping is:

@ConfigMapping(prefix = "my.filter")
public interface SmsGatewayFilterListConfig {

    List<RangeWrapper> numberRange();
}

with pojos:


public record RangeWrapper(Range range) {
}

public record Range(String from,
                    String to) {
}

And my converter (registered in META-INF/services/org.eclipse.microprofile.config.spi.Converter ):

import org.eclipse.microprofile.config.spi.Converter;
import org.yaml.snakeyaml.Yaml;

public class RangeWrapperConverter implements Converter<RangeWrapper> {
    @Override
    public RangeWrapper convert(String s) throws IllegalArgumentException, NullPointerException {
        System.out.println("Got: " + s);
        return new Yaml().loadAs(s, RangeWrapper.class);
    }
}

I have the quarkus-config-yaml dependency set, and am using application.yml

When i try to startup my quarkus app, I am getting parsing issues however, as the string which is passed to my converter is being:

{"number-range": [{"range": {"from": "+994700110000"

This seems to somehow be in json format, and even then not providing the full content of my yaml. What can be wrong please?

score 0 · Answer 1 · answered Aug 30 '22 at 17:40

My recommendation is to use the following mapping strategy:

@ConfigMapping(prefix = "my.filter")
interface RangesMapping {
    List<Ranges> numberRange();

    interface Ranges {
        Range range();

        interface Range {
            String from();

            String to();
        }
    }
}

This does not require any specific Converter. Everything is handled for you automatically.

What you currently see is a legacy feature that provided the value of the parent property my.filter tree, so users could use a Converter, because there was no automatic conversion support for List or Map. That is not the case anymore and such property value will be removed.

Quarkus converter for microprofile configMapping not giving full object

1 Answers1