Mark I. Dinges wrote:
I was going to start working on the annotation processing for
@Requires. Has anyone started working on it yet? Looking at the
current processing of the DataType annotation, it looks like we want
to create a PolicyJavaInterfaceProcessor class and register it with
the JavaInterfaceProcessorRegistryImpl. This way it will be call
during the introspection of the Java implementation.
PolicyJavaInterfaceProcessor would handle the @Requires and
@PolicySets annotations. Initial implementation will only handle the
@Requires. Any suggestions, comments, or recommendations?
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I don't think that anyone has started to work on this, so Thanks for
volunteering :)
What you describe sounds good to me. I suggest to implement this in a
self contained policy annotation support module as it'll make it easier
to integrate.
You may want to check the Intent class as I'm not sure it's in sync yet
with the SCA 1.0 spec.
You'll need to handle both interfaces and implementation classes, which
both can have @Requires. I would expect @Requires on a Java
implementation class and its interfaces to translate to Intent metadata
in the ComponentType model describing the implementation.
A Java interface can also be specified in a service or reference for a
particular component (independent of the implementation class and the
interfaces it implements). You may have to handle that too and translate
@Requires to Intent metadata in the Component model describing the
particular component (somehow refining the Intents specified on the
implementation). This is something to investigate as I couldn't find a
clear description of the behavior in this case in the SCA Java C&I spec.
Let us know if you run into any issues or questions.
--
Jean-Sebastien
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