}
		if !rule.Transition.IsNull() { // this allows for Transition.Days to be zero.
			return true
		}
	}
	return false
}

// ParseLifecycleConfigWithID - parses for a Lifecycle config and assigns
// unique id to rules with empty ID.
func ParseLifecycleConfigWithID(r io.Reader) (*Lifecycle, error) {
	var lc Lifecycle
	if err := xml.NewDecoder(r).Decode(&lc); err != nil {
		return nil, err
	}

	// Check if bucket exists.
	rcfg, err := globalBucketObjectLockSys.Get(bucket)
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	bucketLifecycle, err := lifecycle.ParseLifecycleConfigWithID(r.Body)
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	// Validate the received bucket policy document
	if err = bucketLifecycle.Validate(rcfg); err != nil {

		                          <Expiration><Days>3</Days></Expiration>
		                          </Rule>
		                          </LifecycleConfiguration>`))
	lc, err := ParseLifecycleConfigWithID(r)
	if err != nil {
		t.Fatalf("Expected parsing to succeed but failed with %v", err)
	}
	for _, rule := range lc.Rules {
		if rule.ID == "" {