* Set to -1 to disable automatic cleanup.
     */
    @Required
    @Min(-1)
    @Max(1000)
    @ValidateTypeFailure
    public Integer dayForCleanup;

    /**
     * Number of threads to use for crawling operations.
     * Higher values increase crawling speed but consume more resources.
     */
    @Required
    @Min(0)
    @Max(100)
    @ValidateTypeFailure
    public Integer crawlingThreadCount;

						</data>
						<!-- Add bin directory -->
						<data>
							<type>files</type>
							<paths>
								<path>${project.basedir}/src/main/assemblies/files/fess</path>
								<path>${project.basedir}/src/main/assemblies/files/fess.in.sh</path>
								<path>${project.basedir}/src/main/assemblies/files/generate-thumbnail</path>
								<path>${project.basedir}/plugin.xml</path>
							</paths>

    <jsp:include page="/WEB-INF/view/common/admin/sidebar.jsp">
        <jsp:param name="menuCategoryType" value="system"/>
        <jsp:param name="menuType" value="general"/>
    </jsp:include>
    <main class="content-wrapper">
        <div class="content-header">
            <div class="container-fluid">
                <div class="row mb-2">
                    <div class="col-sm-6">
                        <h1>

---

## Key Components

### Suggester (Main Entry Point)
Location: `src/main/java/org/codelibs/fess/suggest/Suggester.java`

Main operations: `suggest()`, `popularWords()`, `indexer()`, `createIndexIfNothing()`, `createNextIndex()`, `switchIndex()`, `removeDisableIndices()`

### SuggestIndexer (Indexing Engine)
Location: `src/main/java/org/codelibs/fess/suggest/index/SuggestIndexer.java`

└── ds/                        # Data store connectors

src/main/resources/
├── fess_config.properties     # Main config
├── app.xml                    # DI configuration
├── fess_label_*.properties    # UI labels (i18n)
├── fess_message_*.properties  # Validation messages (i18n)
└── fess_indices/              # OpenSearch index mappings

src/main/webapp/WEB-INF/view/  # JSP templates
```

## DBFlute Code Generation

	<property name="webinf.dir" value="${basedir}/src/main/webapp/WEB-INF" />
	<property name="crawler.dir" value="${basedir}/src/main/webapp/WEB-INF/env/crawler" />
	<property name="suggest.dir" value="${basedir}/src/main/webapp/WEB-INF/env/suggest" />
	<property name="thumbnail.dir" value="${basedir}/src/main/webapp/WEB-INF/env/thumbnail" />
	<property name="site.dir" value="${basedir}/src/main/webapp/WEB-INF/site" />

        // Set values in main thread
        UrlQueue<?> mainUrlQueue = createMockUrlQueue("main-thread", "http://main.com");
        CrawlingParameterUtil.setUrlQueue(mainUrlQueue);

        CrawlerContext mainContext = new CrawlerContext();
        mainContext.setSessionId("main-context");
        CrawlingParameterUtil.setCrawlerContext(mainContext);

        // Verify main thread values

labels.facet_filetype_odp=ODF Sunum
labels.facet_filetype_pdf=PDF
labels.facet_filetype_fb2=FictionBook
labels.facet_filetype_epub=EPUB
labels.facet_filetype_ibooks=iBooks
labels.facet_filetype_txt=Metin
labels.facet_filetype_rtf=Zengin Metin
labels.facet_filetype_chm=Derlenmiş HTML Yardımı
labels.facet_filetype_zip=ZIP Arşivi
labels.facet_filetype_7z=7z Arşivi
labels.facet_filetype_bz=BZIP Arşivi
labels.facet_filetype_bz2=BZIP2 Arşivi

        final RangeQueryBuilder rangeQuery = QueryBuilders.rangeQuery(field);
        final BytesRef min = termRangeQuery.getLowerTerm();
        if (min != null) {
            if (termRangeQuery.includesLower()) {
                rangeQuery.gte(min.utf8ToString());
            } else {
                rangeQuery.gt(min.utf8ToString());
            }
        }
        final BytesRef max = termRangeQuery.getUpperTerm();

### Key File Locations

**Core**: `fess-crawler/src/main/java/org/codelibs/fess/crawler/`
- `Crawler.java`, `CrawlerContext.java`, `CrawlerThread.java`

**Clients**: `fess-crawler/src/main/java/org/codelibs/fess/crawler/client/`
- `http/HcHttpClient.java`, `fs/FileSystemClient.java`, `storage/StorageClient.java`

**DI Config**: `fess-crawler-lasta/src/main/resources/crawler.xml`

### Exception Hierarchy

```