// purgeDeletedNamespaces will remove all namespaces enumerated in a reviewRecordStore that are not in the namespace set
func purgeDeletedNamespaces(namespaceSet *util.StringSet, userSubjectRecordStore cache.Store, groupSubjectRecordStore cache.Store, reviewRecordStore cache.Store) {
reviewRecordItems := reviewRecordStore.List()
for i := range reviewRecordItems {
reviewRecord := reviewRecordItems[i].(*reviewRecord)
if !namespaceSet.Has(reviewRecord.namespace) {
deleteNamespaceFromSubjects(userSubjectRecordStore, reviewRecord.users, reviewRecord.namespace)
deleteNamespaceFromSubjects(groupSubjectRecordStore, reviewRecord.groups, reviewRecord.namespace)
reviewRecordStore.Delete(reviewRecord)
}
}
}
// deleteNamespaceFromSubjects removes the namespace from each subject
// if no other namespaces are active to that subject, it will also delete the subject from the cache entirely
func deleteNamespaceFromSubjects(subjectRecordStore cache.Store, subjects []string, namespace string) {
for _, subject := range subjects {
obj, exists, _ := subjectRecordStore.GetByKey(subject)
if exists {
subjectRecord := obj.(*subjectRecord)
delete(subjectRecord.namespaces, namespace)
if len(subjectRecord.namespaces) == 0 {
subjectRecordStore.Delete(subjectRecord)
}
}
}
}