Quarkus extension filter doesn’t work when registers via AdditionalBeanBuildItem

I want to implement my custom filter in my application.

TemplateOverrideFilter

public class TemplateOverrideFilter implements ContainerRequestFilter {
    private static final Logger LOG = Logger.getLogger(TemplateOverrideFilter.class);

    @Override
    public void filter(ContainerRequestContext requestContext) throws IOException {
        LOG.info("TEMPLATE OVERRIDE FILTER TEST");
    }
}

I provide the configuration for the filter using

ContextConfiguration

@Provider
@PreMatching
public class ContextConfiguration implements DynamicFeature {

    @Override
    public void configure(ResourceInfo resourceInfo, FeatureContext context) {
        context.register(TemplateOverrideFilter.class);
    }
}

And when I register my bean using the registerConfiguration method, it works well. But when I use registerAdditionalBeans, it doesn’t work.

class TemplateOverrideProcessor {
    private static final String FEATURE = "template-override";

    @BuildStep
    FeatureBuildItem feature() {
        return new FeatureBuildItem(FEATURE);
    }

    // Does not work
    @BuildStep
    AdditionalBeanBuildItem registerAdditionalBeans() {
        return AdditionalBeanBuildItem.builder()
            .setUnremovable()
            .addBeanClass(ContextConfiguration.class)
            .build();

    }

    // Works well
    @BuildStep
    ResteasyJaxrsProviderBuildItem registerConfiguration() {
        return new ResteasyJaxrsProviderBuildItem(ContextConfiguration.class.getName());
    }
}

So I want to make the use of AdditionalBeanBuildItem also working. Can you help me?

Answer

So, I figured out how to achieve my goal. I don’t need the ContextConfiguration class.

It’s enough for me to just use the plugin in the runtime pom.xml:

<plugin>
    <groupId>org.jboss.jandex</groupId>
    <artifactId>jandex-maven-plugin</artifactId>
    <version>1.1.1</version>
    <executions>
        <execution>
             <id>make-index</id>
             <goals>
                 <goal>jandex</goal>
             </goals>
        </execution>
    </executions>
</plugin>

And my filter started to look like this:

@Provider
public class TemplateOverrideFilter implements ContainerRequestFilter {
   ...
}

After that I was able to register my filter via AdditionalBeanBuildItem

    @BuildStep
    AdditionalBeanBuildItem registerAdditionalBeans() {
        return AdditionalBeanBuildItem.builder()
            .setUnremovable()
            .addBeanClass(TemplateOverrideFilter.class)
            .build();

    }