/**
     * Adds a conversion rule for mapping input file extensions to output extensions.
     *
     * @param inExt the input file extension
     * @param outExt the output file extension
     */
    public void addConversionRule(final String inExt, final String outExt) {
        extensionMap.put(inExt, outExt);
    }

    /*
     * (non-Javadoc)
     *

    public void test_constructor() {
        CrawlerContext context = new CrawlerContext();
        assertNotNull(context);
        assertNull(context.getSessionId());
        assertEquals(0, context.getActiveThreadCount().intValue());
        assertEquals(0L, context.getAccessCount());
        assertEquals(CrawlerStatus.INITIALIZING, context.getStatus());
        assertNull(context.getUrlFilter());
        assertNull(context.getRuleManager());

                if (context.get(EmbeddedDocumentExtractor.class) == null) {
                    final Parser p = context.get(Parser.class);
                    if (p == null) {
                        context.set(Parser.class, this);
                    }
                    context.set(EmbeddedDocumentExtractor.class, new ParsingEmbeddedDocumentExtractor(context));
                }

    <component name="fileTransformer" class="org.codelibs.fess.crawler.transformer.impl.FileTransformer" instance="singleton"/>
</components>
```

### Crawler Context Configuration

```java
// Set maximum number of URLs to crawl
crawler.crawlerContext.setMaxAccessCount(1000);

// Set number of crawler threads
crawler.crawlerContext.setNumOfThread(10);

 */
public final class TextUtil {
    private static final Logger logger = LogManager.getLogger(TextUtil.class);

    private TextUtil() {
    }

    /**
     * This class provides a context for normalizing text.
     */
    public static class TextNormalizeContext {

        private final Reader reader;

        private int initialCapacity = 10000;

        private int maxAlphanumTermSize = -1;

    }

    /**
     * Runs the crawling process in a separate thread.
     * This method initializes the crawler context, creates and starts crawler threads,
     * and waits for their completion.
     */
    @Override
    public void run() {
        // context
        crawlerContext.urlFilter = urlFilter;
        crawlerContext.ruleManager = ruleManager;

     */
    public void setAuthCache(final AuthCache authCache) {
        this.authCache = authCache;
    }

    /**
     * Sets the HTTP client context.
     * @param httpClientContext The HTTP client context.
     */
    public void setHttpClientContext(final HttpClientContext httpClientContext) {
        this.httpClientContext = httpClientContext;
    }

    /**

        sidSet.add(sid);
        if (type == SID.SID_TYPE_DOM_GRP || type == SID.SID_TYPE_ALIAS) {
            try {
                final CIFSContext context = file.getContext();
                final SID[] children = context.getSIDResolver()
                        .getGroupMemberSids(context, file.getServer(), sid.getDomainSid(), sid.getRid(),
                                org.codelibs.jcifs.smb.impl.SID.SID_FLAG_RESOLVE_SIDS);

        }

        return true;
    }

    /**
     * Deletes the scroll context associated with the given scroll ID.
     *
     * @param client the OpenSearch client used to clear the scroll context
     * @param scrollId the ID of the scroll context to be deleted; if null, no action is taken
     */
    public static void deleteScrollContext(final Client client, final String scrollId) {

     */
    @Resource
    protected LogHelper logHelper;

    /**
     * Factory for creating crawler clients.
     */
    protected CrawlerClientFactory clientFactory;

    /**
     * Context object containing crawler state and configuration.
     */
    protected CrawlerContext crawlerContext;

    /**
     * Flag indicating whether to wait on folder operations.
     */