}
            final List<AliasMetadata> list = response.getAliases().get(s);
            if (list == null) {
                return true;
            }
            return list.isEmpty();
        }).forEach(s -> {
            if (logger.isInfoEnabled()) {
                logger.info("Delete index: {}", s);
            }

                        .prepareGetMappings(actualIndex)
                        .execute()
                        .actionGet(settings.getIndicesTimeout())
                        .getMappings()
                        .isEmpty();
            } catch (final IndexNotFoundException e) {
                empty = true;
                final CreateIndexResponse response = client.admin()
                        .indices()

     */
    protected String getResultDataBody(final String name, final List<String> values) {
        final StringBuilder buf = new StringBuilder();
        buf.append("<list>");
        if (values != null && !values.isEmpty()) {
            for (final String value : values) {
                buf.append("<item>");
                buf.append(trimSpace(XmlUtil.escapeXml(value)));
                buf.append("</item>");
            }

     * @param uri the URI to preprocess
     * @return the preprocessed URI
     * @throws CrawlerSystemException if the URI is empty
     */
    protected String preprocessUri(final String uri) {
        if (StringUtil.isEmpty(uri)) {
            throw new CrawlerSystemException("The uri is empty.");
        }

        return uri;
    }

    /**
     * Returns the character set for the given SMB file.
     *

                        break;
                    }
                    queryLogs.add(queryLog);
                    queryLog = queryLogReader.read();
                    if (queryLog == null && !queryLogs.isEmpty() || queryLogs.size() >= docPerReq) {
                        final SuggestIndexResponse res = indexFromQueryLog(queryLogs.toArray(new QueryLog[queryLogs.size()]));
                        errors.addAll(res.getErrors());

                .setConnectionManager(clientConnectionManager)
                .setDefaultRequestConfig(requestConfigBuilder.build())
                .build();
        if (!httpClientPropertyMap.isEmpty()) {
            final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(closeableHttpClient.getClass());
            for (final Map.Entry<String, Object> entry : httpClientPropertyMap.entrySet()) {