Is there a way log/trace files that are not covered by any layer of a LayeredArchitecture?

[gadton]

Defining layers and allowed access is easy but how to check if all loaded classes are covered by at least one layer?

[codecholeric]

I don't think there is a way at the moment. Originally I thought, that the white list way to define layers would draw in all relevant classes in in time anyway. E.g. define layer persistence may only be accessed by service, and also only persistence may use the EntityManager. Now any class that wants to access the database must reside in the persistence layer, or use a class from the persistence layer, but then it must reside in the service layer, and so on.
I guess LayeredArchitecture could be extended to allow some strict mode, where all classes must be covered by layers, similar like how a PlantUML rule fails, if not all checked classes are covered by the diagram. But LayeredArchitecture as opposed to the PlantUML rules, allows no way to filter the classes before.
Anyway, you can still somewhat mitigate your pain by simply writing a second rule

classes().should().resideInAnyPackage(allLayerPackageIdentifiers);

[codecholeric]

I think this would by a nice addition, so if anybody is looking for a simple starter to contributions, this here is open for grabs 😉
I guess we could introduce something like enforceAllClassesResideInLayers(), but we also would need an additional ignoreClasses(Class<?>...) and ignoreClasses(DescribedPredicate<JavaClass>) to enable specific ignores (let's be realistic about the world out there 😉).

[clojj]

Very nice to see this addition! exactly the thin I tried to test by using something like this

ArchRuleDefinition.classes().that()
            .resideOutsideOfPackage("$orderBoundedContext..").should()
            .containNumberOfElements(DescribedPredicate.equalTo(0))

...really hope this gets merged soon !?