final List<Tuple3<String, String, String>> virtualHostList = new ArrayList<>();
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            @SuppressWarnings("unchecked")
            @Override
            public Tuple3<String, String, String>[] getVirtualHosts() {

	return nil, auth.Credentials{}
}

// AdminError - is a generic error for all admin APIs.
type AdminError struct {
	Code       string
	Message    string
	StatusCode int
}

func (ae AdminError) Error() string {
	return ae.Message
}

func toAdminAPIErr(ctx context.Context, err error) APIError {
	if err == nil {
		return noError
	}

	var apiErr APIError

	defer updateOSMetrics(osMetricMkdirAll, dirPath)(err)
	return osMkdirAll(dirPath, mode, baseDir)
}

// Rename captures time taken to call os.Rename
func Rename(src, dst string) (err error) {
	defer updateOSMetrics(osMetricRename, src, dst)(err)
	return RenameSys(src, dst)
}

// OpenFile captures time taken to call os.OpenFile

| Action          | String  | Yes      | Value must be `AssumeRoleWithCustomToken`                         |
| Version         | String  | Yes      | Value must be `2011-06-15`                                           |
| Token           | String  | Yes      | Token to be authenticated by identity plugin                         |

		}
	}
}

func (z *erasureServerPools) NewNSLock(bucket string, objects ...string) RWLocker {
	return z.serverPools[0].NewNSLock(bucket, objects...)
}

// GetDisksID will return disks by their ID.
func (z *erasureServerPools) GetDisksID(ids ...string) []StorageAPI {
	idMap := make(map[string]struct{}, len(ids))
	for _, id := range ids {
		idMap[id] = struct{}{}
	}

/**
 * @param {?string} str
 * @return {boolean} Whether the given string is null or is the empty string.
 * @public
 */
Platform.stringIsNullOrEmpty = function(str) {
  return !str;
};


/**
 * @param {?string} str
 * @return {string} Original str, if it is non-null. Otherwise empty string.
 */
Platform.nullToEmpty = function(str) {
  return str || "";
};


/**
 * @param {?string} str

        final String[] geoFields = fessConfig.getQueryGeoFieldsAsArray();
        final Map<String, List<QueryBuilder>> geoMap = new HashMap<>();

        StreamUtil.stream(request.getParameterMap())
                .of(stream -> stream.filter(e -> e.getKey().startsWith("geo.") && e.getKey().endsWith(".point")).forEach(e -> {
                    final String key = e.getKey();

        }
    }

    public void scriptedMetric(String name, ConditionOptionCall<ScriptedMetricAggregationBuilder> opLambda) {
        ScriptedMetricAggregationBuilder builder = regScriptedMetricA(name);
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

    public void topHits(String name, ConditionOptionCall<TopHitsAggregationBuilder> opLambda) {

        }
    }

    public void scriptedMetric(String name, ConditionOptionCall<ScriptedMetricAggregationBuilder> opLambda) {
        ScriptedMetricAggregationBuilder builder = regScriptedMetricA(name);
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

    public void topHits(String name, ConditionOptionCall<TopHitsAggregationBuilder> opLambda) {

	res = make(map[string][]string)
	ctx, cancel := context.WithCancel(ctx)
	defer cancel()
	for item := range listIAMConfigItems(ctx, iamOS.objAPI, iamConfigPrefix+SlashSeparator) {
		if item.Err != nil {
			return nil, item.Err
		}

		secondIndex := strings.HasPrefix(item.Item, policyDBPrefix)
		listKey, trimmedItem := splitPath(item.Item, secondIndex)
		if listKey == iamFormatFile {
			continue