Spring ConversionService adding Converters

Question

I searched for the below problem, but couldn\'t find an answer.

I want to use spring\'s conversion service by writing my custom converter that implements org.spri

Answer 1

To resolve any circular dependencies, here the steps I followed (Spring Boot v5.2.1):

Register a simple conversionService

@Configuration
public class ConverterProvider {

    @Bean
    public ConversionService conversionService() {
        ConversionService conversionService = new GenericConversionService();
        return conversionService;
    }
}

Inject your custom converters

@Component
public class ConvertersInjection {

    @Autowired
    private GenericConversionService conversionService;

    @Autowired
    private void converters(Set converters) {
        converters.forEach(conversionService::addConverter);
    }
}

The converter can even autowire your conversionService

@Component
public class PushNotificationConverter implements Converter {
    @Lazy
    @Autowired
    private ConversionService conversionService;

    @Override
    public GCM convert(PushNotificationMessages.PushNotification source) {
        GCM gcm = new GCM();
        if (source.hasContent()) {
            PushNotificationMessages.PushNotification.Content content = source.getContent();
            if (content.hasData()) {
                conversionService.convert(content.getData(), gcm.getData().getClass());
            } else if (content.hasNotification()) {
                conversionService.convert(content.getNotification(), gcm.getNotification().getClass());
            }
        }
        return gcm;
    }
}