func (arn ARN) String() string {
	return strings.Join(
		[]string{
			arnPrefixArn,
			arn.Partition,
			arn.Service,
			arn.Region,
			"", // account-id is always empty in this implementation
			arn.ResourceType + "/" + arn.ResourceID,
		},
		":",
	)
}

// Parse - parses an ARN string into a type.
func Parse(arnStr string) (arn ARN, err error) {
	ps := strings.Split(arnStr, ":")

			},
			wantArn: ARN{},
			wantErr: true,
		},
		{
			name: "invalid ARN partition must fail",
			args: args{
				arnStr: "arn:invalid:iam:us-east-1::role/my-role",
			},
			wantArn: ARN{},
			wantErr: true,
		},
		{
			name: "invalid ARN service must fail",
			args: args{
				arnStr: "arn:minio:invalid:us-east-1::role/my-role",
			},
			wantArn: ARN{},
			wantErr: true,
		},
		{

		if _, ok := tgtsMap[rule.Destination.ARN]; !ok {
			tgtsMap[rule.Destination.ARN] = struct{}{}
		}
	}
	for k := range tgtsMap {
		arns = append(arns, k)
	}
	return arns

	}
	sort.Strings(arns)
	msgs := make([]string, 0, len(arns))
	for _, arn := range arns {
		msgs = append(msgs, color.Bold(arn))
	}

	logger.Info(fmt.Sprintf("%s %s", color.Blue("IAM Roles:"), strings.Join(msgs, " ")))
}

// HasWatcher - returns if the IAM system has a watcher to be notified of
// changes.
func (sys *IAMSys) HasWatcher() bool {
	return sys.store.HasWatcher()
}

		return
	}

	arnMsg := color.Blue("Object Lambda ARNs: ")
	for _, arn := range globalLambdaTargetList.List(globalSite.Region) {
		arnMsg += color.Bold(fmt.Sprintf("%s ", arn))
	}
	logger.Info(arnMsg + "\n")
}

// Prints bucket notification configurations.
func printEventNotifiers() {
	if globalNotificationSys == nil {
		return
	}

	arns := globalEventNotifier.GetARNList(true)
	if len(arns) == 0 {

	var arns []string
	if rCfg.RoleArn != "" {
		arns = append(arns, rCfg.RoleArn)
	} else {
		for _, rule := range rCfg.Rules {
			arns = append(arns, rule.Destination.String())
		}
	}
	var sameTarget bool
	for _, arnStr := range arns {
		arn, err := madmin.ParseARN(arnStr)
		if err != nil {

	}
}

// GetARNList - returns available ARNs.
func (evnot *EventNotifier) GetARNList(onlyActive bool) []string {
	arns := []string{}
	if evnot == nil {
		return arns
	}
	region := globalSite.Region
	for targetID, target := range evnot.targetList.TargetMap() {
		// httpclient target is part of ListenNotification
		// which doesn't need to be listed as part of the ARN list
		// This list is only meant for external targets, filter

	if update {
		ops = madmin.GetTargetUpdateOps(r.Form)
	} else {
		var exists bool // true if arn exists
		target.Arn, exists = globalBucketTargetSys.getRemoteARN(bucket, &target, "")
		if exists && target.Arn != "" { // return pre-existing ARN
			data, err := json.Marshal(target.Arn)
			if err != nil {
				writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
				return
			}

        final ParameterizedClassDesc[] args = desc.getArguments();
        assertThat(args.length, is(2));

        final ParameterizedClassDesc arg1 = args[0];
        assertThat(arg1.getRawClass(), is(sameClass(String.class)));
        assertThat(arg1.getArguments(), is(nullValue()));

        final ParameterizedClassDesc arg2 = args[1];
        assertThat(arg2.getRawClass(), is(sameClass(Set[].class)));

			}
		}
		sys.incTargetErr(bucket, arn)
	}()
	return nil
}

// GetRemoteBucketTargetByArn returns BucketTarget for a ARN
func (sys *BucketTargetSys) GetRemoteBucketTargetByArn(ctx context.Context, bucket, arn string) madmin.BucketTarget {
	sys.RLock()
	defer sys.RUnlock()
	var tgt madmin.BucketTarget
	for _, t := range sys.targetsMap[bucket] {
		if t.Arn == arn {
			tgt = t.Clone()