resource type is interface, may be string, or []byte, all handle with json Marshal is not right

[aseTo2016]

resource type is interface, may be string, or []byte, all handle with json Marshal is not right

	var resourceValue []byte
	switch rv := resource.(type) {
	case string:
		resourceValue = []byte(rv)
	case []byte:
		resourceValue = rv
	default:
		resourceValue, err = json.Marshal(resource)
		if err != nil {
			return nil, err
		}
	}