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
}

func (ruleList FilterRuleList) isEmpty() bool {
	return len(ruleList.Rules) == 0
}

			lookupConfigs(srvCfg, objAPI)
			return nil, err
		}
	}

	json := jsoniter.ConfigCompatibleWithStandardLibrary
	if err := json.Unmarshal(data, &srvCfg); err != nil {
		return nil, err
	}

	// Add any missing entries
	return srvCfg.Merge(), nil
}

// ConfigSys - config system.
type ConfigSys struct{}

// Init - initializes config system from config.json.