From 3cd56e85d68384ddf15b002dd03fcbb4d490aed6 Mon Sep 17 00:00:00 2001
From: Tim Hockin <thockin@google.com>
Date: Wed, 2 Jul 2014 14:57:24 -0700
Subject: [PATCH] Simplify supported manifest versions

---
 pkg/api/validation.go | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/pkg/api/validation.go b/pkg/api/validation.go
index 19cf33662d0..8182be3351c 100644
--- a/pkg/api/validation.go
+++ b/pkg/api/validation.go
@@ -23,13 +23,9 @@ import (
 	"github.com/golang/glog"
 )
 
-func isSupportedManifestVersion(value string) bool {
-	switch value {
-	case "v1beta1", "v1beta2":
-		return true
-	}
-	return false
-}
+var (
+	supportedManifestVersions util.StringSet = util.NewStringSet("v1beta1", "v1beta2")
+)
 
 func errInvalid(field string, value interface{}) error {
 	return fmt.Errorf("%s is invalid: '%v'", field, value)
@@ -109,7 +105,7 @@ func ValidateManifest(manifest *ContainerManifest) error {
 	if len(manifest.Version) == 0 {
 		return errInvalid("ContainerManifest.Version", manifest.Version)
 	}
-	if !isSupportedManifestVersion(manifest.Version) {
+	if !supportedManifestVersions.Has(manifest.Version) {
 		return errNotSupported("ContainerManifest.Version", manifest.Version)
 	}
 	if len(manifest.ID) > 255 || !util.IsDNSSubdomain(manifest.ID) {