SearchEngineUtil.scroll(index, hit -> {
                            try {
                                writer.write("{\"index\":{\"_index\":\"" + index + "\",\"_id\":\""
                                        + StringEscapeUtils.escapeJson(hit.getId()) + "\"}}\n");

{
  "settings": {
    "index": {
      "codec": "${fess.index.codec}",
      "refresh_interval": "1s",
      "number_of_shards": "${fess.index.number_of_shards}",
      "number_of_replicas": 0,
      "auto_expand_replicas": "${fess.index.auto_expand_replicas}"
    },
    "analysis": {
      "char_filter": {
        "mapping_fa_filter": {
          "type": "mapping",
          "mappings_path": "${fess.dictionary.path}fa/mapping.txt"
        },

    //                                                                      ==============
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index() {
        return asHtml(path_AdminDict_AdminDictJsp).renderWith(data -> {
            final DictionaryFile<? extends DictionaryItem>[] dictFiles = dictionaryManager.getDictionaryFiles();

    //                                                                      ==============

    // GET /api/admin/systeminfo
    @Execute
    public JsonResponse<ApiResult> get$index() {
        final List<Map<String, String>> bugReportItems = getBugReportItems();
        final List<Map<String, String>> envItems = getEnvItems();
        final List<Map<String, String>> fessPropItems = getFessPropItems(fessConfig);

import org.opensearch.index.query.RangeQueryBuilder;
import org.opensearch.index.query.RegexpQueryBuilder;
import org.opensearch.index.query.SpanTermQueryBuilder;
import org.opensearch.index.query.TermQueryBuilder;
import org.opensearch.index.query.TermsQueryBuilder;
import org.opensearch.index.query.WildcardQueryBuilder;
import org.opensearch.index.query.functionscore.FunctionScoreQueryBuilder;

    //                                                                      Search Execute
    //                                                                      ==============

    @Execute
    public HtmlResponse index(final ErrorForm form) {
        return asHtml(virtualHost(path_Error_NotFoundJsp));
    }

    //                                                                      Search Execute
    //                                                                      ==============

    @Execute
    public ActionResponse index() {
        if (isLoginRequired()) {
            return redirectToLogin();
        }
        return osddHelper.asStream();
    }

        assertEscapePattern("", "# Test");
        assertEscapePattern(".*\\Q!/\\E.*", "!/");
        assertEscapePattern("\\Qindex.html\\E", "index.html");
        assertEscapePattern("^\\Qhttp://\\E.*", "^http://");
        assertEscapePattern(".*\\Qindex.html\\E$", "index.html$");
        assertEscapePattern("^\\Qhttp://www.codelibs.org/page.html\\E$", "^http://www.codelibs.org/page.html$");

            final Map<String, String> tags = new HashMap<>();
            getObjectTags(getObjectName(path, name)).entrySet().forEach(e -> {
                final int index = tags.size() / 2 + 1;
                tags.put("name" + index, e.getKey());
                tags.put("value" + index, e.getValue());
            });
            RenderDataUtil.register(data, "savedTags", tags);
        });
    }

    public static class PathInfo {

import org.codelibs.fess.util.DocList;
import org.codelibs.fess.util.MemoryUtil;
import org.codelibs.fess.util.ThreadDumpUtil;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.search.sort.SortOrder;

public class IndexUpdater extends Thread {
    private static final Logger logger = LogManager.getLogger(IndexUpdater.class);