* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package jcifs.internal.util;


/**
 * 
 */
public final class StringUtil {

    /**
     * 
     */
    private StringUtil () {}


    /**
     * Implementation of {@link java.lang.String#join} backported for JDK7.
     * 
     * @param delimiter
     * @param elements

     * <p>
     * 次のように使います．
     * </p>
     *
     * <pre>
     * StringUtil.defaultString(null, "NULL")  = "NULL"
     * StringUtil.defaultString("", "NULL")    = ""
     * StringUtil.defaultString("aaa", "NULL") = "aaa"
     * StringUtil.defaultString("aaa", null) = "aaa"
     * StringUtil.defaultString(null, null) = null
     * </pre>
     *
     * @param str

        assertEquals("c", StringUtil.substringToLast("abc", "b"));
        assertEquals("c", StringUtil.substringToLast("abcbc", "b"));
        assertEquals("abc", StringUtil.substringToLast("abc", ""));
        assertEquals("abc", StringUtil.substringToLast("abc", null));
        assertEquals("abc", StringUtil.substringToLast("abc", "dddd"));
    }

    /**
     * @throws Exception
     */

                .ifPresent(s -> entry.put(new BasicAttribute(fessConfig.getLdapAttrSurname(), s)));
        OptionalUtil.ofNullable(user.getGivenName()).filter(StringUtil::isNotBlank)
                .ifPresent(s -> entry.put(new BasicAttribute(fessConfig.getLdapAttrGivenName(), s)));
        OptionalUtil.ofNullable(user.getMail()).filter(StringUtil::isNotBlank)

            credentials = new NTCredentials(username, password == null ? StringUtil.EMPTY : password,
                    workstation == null ? StringUtil.EMPTY : workstation, domain == null ? StringUtil.EMPTY : domain);
        } else {
            credentials = new UsernamePasswordCredentials(username, password == null ? StringUtil.EMPTY : password);
        }
        return credentials;
    }

        putResultDataBody(dataMap, fessConfig.getIndexFieldVirtualHost(),
                stream(crawlingConfig.getVirtualHosts()).get(stream -> stream.filter(StringUtil::isNotBlank).collect(Collectors.toList())));
        // TODO date
        // lang
        if (StringUtil.isNotBlank(fessConfig.getCrawlerDocumentFileDefaultLang())) {

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        if (StringUtil.isNotBlank(fessConfig.getQueryFacetFields())) {
            field = StreamUtil.split(fessConfig.getQueryFacetFields(), ",")
                    .get(stream -> stream.map(String::trim).filter(StringUtil::isNotEmpty).distinct().toArray(n -> new String[n]));
        }
        if (StringUtil.isNotBlank(fessConfig.getQueryFacetFieldsSize())) {

            return true;
        }
        return stream(values).get(stream -> stream.allMatch(StringUtil::isBlank));
    }

    protected static String[] simplifyArray(final String[] values) {
        return stream(values).get(stream -> stream.filter(StringUtil::isNotBlank).distinct().toArray(n -> new String[n]));
    }

        final String password = fessConfig.getFesenPassword();
        if (StringUtil.isNotBlank(username) && StringUtil.isNotBlank(password)) {
            builder.put(Constants.FESEN_USERNAME, username);
            builder.put(Constants.FESEN_PASSWORD, password);
        }
        final String authorities = fessConfig.getFesenHttpSslCertificateAuthorities();
        if (StringUtil.isNotBlank(authorities)) {

            if (StringUtil.isNotBlank(getIncludedDocUrls())) {
                final List<Pattern> urlPatterList = new ArrayList<>();
                final String[] urls = getIncludedDocUrls().split("[\r\n]");
                for (final String u : urls) {
                    final String v = systemHelper.normalizeConfigPath(u);
                    if (StringUtil.isNotBlank(v)) {