return err
	}

	if parsedConfig.ObjectLockEnabled != Enabled {
		return fmt.Errorf("only 'Enabled' value is allowed to ObjectLockEnabled element")
	}

	*config = Config(parsedConfig)
	return nil
}

// ToRetention - convert to Retention type.
func (config *Config) ToRetention() Retention {
	r := Retention{
		LockEnabled: config.ObjectLockEnabled == Enabled,
	}
	if config.Rule != nil {

	bucketMetadataFormat  = 1
	bucketMetadataVersion = 1
)

var (
	enabledBucketObjectLockConfig = []byte(`<ObjectLockConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><ObjectLockEnabled>Enabled</ObjectLockEnabled></ObjectLockConfiguration>`)
	enabledBucketVersioningConfig = []byte(`<VersioningConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Status>Enabled</Status></VersioningConfiguration>`)
)

		return
	}

	vars := mux.Vars(r)
	bucket := vars["bucket"]

	objectLockEnabled := false
	if vs := r.Header.Get(xhttp.AmzObjectLockEnabled); len(vs) > 0 {
		v := strings.ToLower(vs)
		switch v {
		case "true", "false":
			objectLockEnabled = v == "true"
		default:
			writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
			return
		}
	}