Add immutable namespace views

internal/domain/resource_identity.go

@@ -43,6 +43,12 @@ func resourceNamespaceFromID(id string) (string, bool) {
 // valid namespace/local-ID pair.
 func IsValidResourceID(id string) bool { return validResourceID(id) }
 
+// QualifyResourceID validates id and applies namespace to an unqualified ID.
+// An already-qualified ID is returned unchanged.
+func QualifyResourceID(id, namespace string) (string, bool) {
+	return qualifyResourceID(id, namespace)
+}
+
 // IsValidResourceNamespace reports whether namespace is nonblank and contains
 // no namespace separator.
 func IsValidResourceNamespace(namespace string) bool { return validResourceNamespace(namespace) }