LogProcessor

logprocessor.xtend

@Target(TYPE)
@Active(LogProcessor)
annotation Log {
}

class LogProcessor extends AbstractClassProcessor {
  override doTransform(MutableClassDeclaration cls, extension TransformationContext context) {
    cls.addField("log") [
      static = true
      final = true
      type = Logger.newTypeReference
      initializer = '''
        «Logger».getLogger("«cls.qualifiedName»")
      '''
      primarySourceElement = cls
    ]
  }
}