rulesCopy[pattern] = targetIDSet.Clone()
	}

	return rulesCopy
}

// Union - returns union with given rules as new rules.
func (rules Rules) Union(rules2 Rules) Rules {
	nrules := rules.Clone()

	for pattern, targetIDSet := range rules2 {
		nrules[pattern] = nrules[pattern].Union(targetIDSet)
	}

	return nrules
}

// Difference - returns difference with given rules as new rules.

	}
	if !r.Prefix.set {
		return r.Filter.Validate()
	}
	return nil
}

func (r Rule) validateTransition() error {
	return r.Transition.Validate()
}

func (r Rule) validateNoncurrentTransition() error {
	return r.NoncurrentVersionTransition.Validate()
}

// GetPrefix - a rule can either have prefix under <rule></rule>, <filter></filter>
// or under <filter><and></and></filter>. This method returns the prefix from the

		return err
	}
	if len(erep.Status) == 0 {
		erep.Status = Disabled
	}
	e.Status = erep.Status
	return nil
}

// Rule - a rule for replication configuration.
type Rule struct {
	XMLName                 xml.Name                `xml:"Rule" json:"Rule"`
	ID                      string                  `xml:"ID,omitempty" json:"ID,omitempty"`

	testCases := []struct {
		inputConfig    string
		opts           ObjectOpts
		expectedResult bool
	}{
		// case 1 - rule with replica modification enabled; not a replica
		{

# no rules should be needed...

                              <Status></Status>
	                    </Rule>`,
			expectedErr: errEmptyRuleStatus,
		},
		{ // Rule with invalid status
			inputXML: ` <Rule>
			                  <ID>rule with invalid status</ID>
                              <Status>OK</Status>
	                    </Rule>`,
			expectedErr: errInvalidRuleStatus,
		},

			continue
		}
		if rule.Filter.TestTags(obj.UserTags) {
			rules = append(rules, rule)
		}
	}
	sort.Slice(rules, func(i, j int) bool {
		return rules[i].Priority > rules[j].Priority && rules[i].Destination.String() == rules[j].Destination.String()
	})

	return rules
}

// GetDestination returns destination bucket and storage class.
func (c Config) GetDestination() Destination {

	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
}

func (ruleList FilterRuleList) isEmpty() bool {

		inpodMarkRule.Mark = InpodTProxyMark
		inpodMarkRule.Mask = InpodTProxyMask
		inpodMarkRule.Priority = 32764
		rules = append(rules, inpodMarkRule)
	}

	for _, rule := range rules {
		log.Debugf("Iterating netlink rule : %+v", rule)
		if err := f(rule); err != nil {
			return fmt.Errorf("failed to configure netlink rule: %w", err)
		}
	}

	return nil
}

func AddLoopbackRoutes(cfg *Config) error {

		{
			inputXML:    `<ServerSideEncryptionConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Rule><ApplyServerSideEncryptionByDefault><SSEAlgorithm>AES256</SSEAlgorithm></ApplyServerSideEncryptionByDefault></Rule><Rule><ApplyServerSideEncryptionByDefault><SSEAlgorithm>AES256</SSEAlgorithm></ApplyServerSideEncryptionByDefault></Rule></ServerSideEncryptionConfiguration>`,
			expectedErr: errors.New("only one server-side encryption rule is allowed at a time"),