return err
	}

	// FilterRuleList must have only one prefix and/or suffix.
	nameSet := set.NewStringSet()
	for _, rule := range rules.Rules {
		if nameSet.Contains(rule.Name) {
			if rule.Name == "prefix" {
				return &ErrFilterNamePrefix{}
			}

			return &ErrFilterNameSuffix{}
		}

		nameSet.Add(rule.Name)
	}

	*ruleList = FilterRuleList(rules)
	return nil
}