* with <tt>setAttributes()</tt> will be a system file
 */
    public static final int ATTR_SYSTEM     = 0x04;
/**
 * A file with this bit on as returned by <tt>getAttributes()</tt> is
 * a volume
 */
    public static final int ATTR_VOLUME     = 0x08;
/**
 * A file with this bit on as returned by <tt>getAttributes()</tt> is
 * a directory
 */
    public static final int ATTR_DIRECTORY  = 0x10;
/**

    }

    protected boolean isEmptyArray(final String[] values) {
        if (values == null || values.length == 0) {
            return true;
        }
        return stream(values).get(stream -> stream.allMatch(StringUtil::isBlank));
    }

    protected static String[] simplifyArray(final String[] values) {

                final String[] values = extractData.getValues(key);
                metaDataMap.put(key, values);

                // meta -> content
                if (fessConfig.isCrawlerMetadataContentIncluded(key)) {
                    final String joinedValue = StringUtils.join(values, ' ');
                    if (StringUtil.isNotBlank(joinedValue)) {

    public void setAvailable_PercentileRanks(double[] values) {
        setAvailable_PercentileRanks(values, null);
    }

    public void setAvailable_PercentileRanks(double[] values, ConditionOptionCall<PercentileRanksAggregationBuilder> opLambda) {
        setAvailable_PercentileRanks("available", values, opLambda);
    }

    public void setAvailable_PercentileRanks(String name, double[] values,

        setCreatedTime_PercentileRanks(values, null);
    }

    public void setCreatedTime_PercentileRanks(double[] values, ConditionOptionCall<PercentileRanksAggregationBuilder> opLambda) {
        setCreatedTime_PercentileRanks("createdTime", values, opLambda);
    }

    public void setCreatedTime_PercentileRanks(String name, double[] values,

public class StreamUtil {
    private StreamUtil() {
        // nothing
    }

    @SafeVarargs
    public static <T> StreamOf<T> stream(final T... values) {
        return new StreamOf<>(() -> values != null ? Arrays.stream(values) : Collections.<T> emptyList().stream());
    }

    public static StreamOf<String> split(final String value, final String regex) {

        }
        return list.toArray(new String[list.size()]);
    }

    public String getHeaderValue(final String name) {
        final String[] values = getHeaderValues(name);
        if (values.length == 0) {
            return null;
        }
        return values[0];
    }

    public void setHitCount_PercentileRanks(double[] values) {
        setHitCount_PercentileRanks(values, null);
    }

    public void setHitCount_PercentileRanks(double[] values, ConditionOptionCall<PercentileRanksAggregationBuilder> opLambda) {
        setHitCount_PercentileRanks("hitCount", values, opLambda);
    }

                    final String[] values = paramEntry.getValue();
                    if (values == null) {
                        continue;
                    }
                    final String key = paramEntry.getKey();
                    for (final String value : values) {
                        if (append) {
                            locationBuf.append('&');

                .map(s -> clientRuleCache.computeIfAbsent(s, t -> {
                    final String[] values = t.split(":", 2);
                    if (values.length != 2) {
                        return null;
                    }
                    return new Pair<>(values[0], Pattern.compile(values[1]));
                })).toList());
    }