String[] floatFields = floatFieldsStr.isEmpty() ? new String[0] : floatFieldsStr.split(",");
        assertNotNull(floatFields);
        assertEquals(0, floatFields.length);

        String doubleFieldsStr = fessConfig.getIndexAdminDoubleFields();
        assertEquals("", doubleFieldsStr);
        String[] doubleFields = doubleFieldsStr.isEmpty() ? new String[0] : doubleFieldsStr.split(",");
        assertNotNull(doubleFields);

    protected String sessionId;

    /** The HTTP method used for the URL in the queue. */
    protected String method;

    /** The URL from the queue. */
    protected String url;

    /** The metadata associated with the URL queue. */
    protected String metaData;

    /** The encoding of the URL queue. */
    protected String encoding;

    public UserAgentHelper() {
        // Default constructor
    }

    /** The HTTP header name for User-Agent */
    protected static final String USER_AGENT = "user-agent";

    /** The request attribute key for storing cached user agent type */
    protected static final String USER_AGENT_TYPE = "ViewHelper.UserAgent";

    /**
     * Determines the user agent type from the current HTTP request.

        @Option(name = "-s", aliases = "--sessionId", metaVar = "sessionId", usage = "Session ID")
        protected String sessionId;

        /** The name of the suggest creator instance. */
        @Option(name = "-n", aliases = "--name", metaVar = "name", usage = "Name")
        protected String name;

        /** The path to the properties file for configuration. */

Crawler crawler = container.getComponent("crawler");
crawler.addUrl("https://example.com");
crawler.crawlerContext.setMaxAccessCount(500);
String sessionId = crawler.execute();
```

### Background Crawling

```java
// Configure for background execution
crawler.setBackground(true);
String sessionId = crawler.execute();

// Check crawling status
while (crawler.crawlerContext.getStatus() == CrawlerStatus.RUNNING) {

     * deletes all related file authentication entries.
     *
     * @param fileConfig the file configuration to be deleted
     */
    public void delete(final FileConfig fileConfig) {

        final String fileConfigId = fileConfig.getId();

        fileConfigBhv.delete(fileConfig, op -> {
            op.setRefreshPolicy(Constants.TRUE);
        });

        fileAuthenticationBhv.queryDelete(cb -> {

     * @return a list of URLs from the input list that are in the user's favorites, or an empty list if the user is not found or has no matching favorites
     */
    public List<String> getUrlList(final String userCode, final List<String> urlList) {
        if (urlList.isEmpty()) {
            return urlList;
        }

        return userInfoBhv.selectByPK(userCode).map(userInfo -> {

     */
    public PurgeDocJob() {
        // Default constructor
    }

    /**
     * Executes the document purging job.
     * Removes all documents from the search index that have expired based on their expires field.
     *
     * @return a string containing the execution result and any error messages
     */
    public String execute() {

     * @return a map containing all key-value parameter pairs for the session
     */
    public Map<String, String> getInfoMap(final String sessionId) {
        final List<CrawlingInfoParam> crawlingInfoParamList = getCrawlingInfoService().getLastCrawlingInfoParamList(sessionId);
        final Map<String, String> map = new HashMap<>();
        for (final CrawlingInfoParam crawlingInfoParam : crawlingInfoParamList) {

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String username = fessConfig.getFesenUsername();
        final String password = fessConfig.getFesenPassword();
        if (StringUtil.isNotBlank(username) && StringUtil.isNotBlank(password)) {
            final String value = username + ":" + password;