data             []byte
		expectedTargetID *TargetID
		expectErr        bool
	}{
		{[]byte(`""`), nil, true},
		{[]byte(`"httpclient+2e33cdee-fbec-4bdd-917e-7d8e3c5a2531:localhost:55638"`), nil, true},
		{[]byte(`":"`), &TargetID{}, false},
		{[]byte(`"1:webhook"`), &TargetID{"1", "webhook"}, false},
	}

	for i, testCase := range testCases {
		targetID := &TargetID{}
		err := targetID.UnmarshalJSON(testCase.data)

		data             []byte
		expectedTargetID *TargetID
		expectErr        bool
	}{
		{[]byte(`""`), nil, true},
		{[]byte(`"httpclient+2e33cdee-fbec-4bdd-917e-7d8e3c5a2531:localhost:55638"`), nil, true},
		{[]byte(`":"`), &TargetID{}, false},
		{[]byte(`"1:webhook"`), &TargetID{"1", "webhook"}, false},
	}

	for i, testCase := range testCases {
		targetID := &TargetID{}
		err := targetID.UnmarshalJSON(testCase.data)

	testCases := []struct {
		eventNames     []Name
		pattern        string
		targetID       TargetID
		expectedResult RulesMap
	}{
		{[]Name{ObjectAccessedAll}, "", TargetID{"1", "webhook"}, rulesMapCase1},
		{[]Name{ObjectAccessedAll, ObjectCreatedPut}, "", TargetID{"1", "webhook"}, rulesMapCase2},
		{[]Name{ObjectRemovedDelete}, "2010*.jpg", TargetID{"1", "webhook"}, rulesMapCase3},
	}

func (list *TargetList) Exists(id TargetID) bool {
	list.RLock()
	defer list.RUnlock()

	_, found := list.targets[id]
	return found
}

// TargetIDResult returns result of Remove/Send operation, sets err if
// any for the associated TargetID
type TargetIDResult struct {
	// ID where the remove or send were initiated.
	ID TargetID

	rulesCase2.Add(NewPattern("2010*", ""), TargetID{"1", "webhook"})

	rulesCase3 := make(Rules)
	rulesCase3.Add(NewPattern("", "*.jpg"), TargetID{"1", "webhook"})

	testCases := []struct {
		rules    Rules
		prefix   string
		targetID TargetID
	}{
		{rulesCase1, "2010*", TargetID{"1", "webhook"}},
		{rulesCase2, "2000*", TargetID{"2", "amqp"}},
		{rulesCase3, "2010*", TargetID{"1", "webhook"}},
	}

	"strings"
)

// ARN - SQS resource name representation.
type ARN struct {
	TargetID
	region string
}

// String - returns string representation.
func (arn ARN) String() string {
	if arn.ID == "" && arn.Name == "" && arn.region == "" {
		return ""
	}

	return "arn:minio:sqs:" + arn.region + ":" + arn.TargetID.String()
}

// MarshalXML - encodes to XML data.

	"reflect"
	"testing"
)

func TestARNString(t *testing.T) {
	testCases := []struct {
		arn            ARN
		expectedResult string
	}{
		{ARN{}, ""},
		{ARN{TargetID{"1", "webhook"}, ""}, "arn:minio:sqs::1:webhook"},
		{ARN{TargetID{"1", "webhook"}, "us-east-1"}, "arn:minio:sqs:us-east-1:1:webhook"},
	}

	for i, testCase := range testCases {
		result := testCase.arn.String()

type RulesMap map[Name]Rules

// add - adds event names, prefixes, suffixes and target ID to rules map.
func (rulesMap RulesMap) add(eventNames []Name, pattern string, targetID TargetID) {
	rules := make(Rules)
	rules.Add(pattern, targetID)

	for _, eventName := range eventNames {
		for _, name := range eventName.Expand() {
			rulesMap[name] = rulesMap[name].Union(rules)
		}
	}
}

	if err != nil {
		return nil, err
	}

	id, found := list.targets[arn.TargetID]
	if !found {
		return nil, &ErrARNNotFound{}
	}
	return id, nil
}

// TargetIDResult returns result of Remove/Send operation, sets err if
// any for the associated TargetID
type TargetIDResult struct {
	// ID where the remove or send were initiated.
	ID TargetID
	// Stores any error while removing a target or while sending an event.
	Err error

import (
	"strings"
)

// ARN - SQS resource name representation.
type ARN struct {
	TargetID
	region string
}

// String - returns string representation.
func (arn ARN) String() string {
	if arn.ID == "" && arn.Name == "" && arn.region == "" {
		return ""
	}

	return "arn:minio:s3-object-lambda:" + arn.region + ":" + arn.TargetID.String()
}

// ParseARN - parses string to ARN.
func ParseARN(s string) (*ARN, error) {