controller.setDefaultIntervalTime(1000);
});
```

### Sitemap Support

```java
// Enable sitemap processing
container.singleton("sitemapsRule", SitemapsRule.class, rule -> {
    rule.addRule("url", ".*sitemap.*");
});

// Add sitemap URL
crawler.addUrl("https://example.com/sitemap.xml");
```

## Data Access and Storage

### Accessing Crawled Data

```java

            final Set<RequestData> requestDataSet = new LinkedHashSet<>();
            for (final Sitemap sitemap : sitemapSet.getSitemaps()) {
                if (sitemap != null) {
                    requestDataSet.add(RequestDataBuilder.newRequestData().get().url(sitemap.getLoc()).build()); // TODO priority
                }
            }

        sitemapList.add(sitemap);
    }

    /**
     * Removes a sitemap from this set.
     * @param sitemap the sitemap to remove
     */
    public void removeSitemap(final Sitemap sitemap) {
        sitemapList.remove(sitemap);
    }

    /**
     * Gets all sitemaps in this set as an array.
     * @return an array of sitemaps
     */
    public Sitemap[] getSitemaps() {

        String[] sitemaps = new String[] { "http://example.com/sitemap.xml", "http://test.com/sitemap.xml" };
        crawlerContext.addSitemaps(sitemaps);

        // Remove and verify
        String[] removedSitemaps = crawlerContext.removeSitemaps();
        assertNotNull(removedSitemaps);
        assertEquals(2, removedSitemaps.length);
        assertEquals("http://example.com/sitemap.xml", removedSitemaps[0]);

package org.codelibs.fess.crawler.entity;

import org.codelibs.core.lang.StringUtil;

/**
 * Represents a Sitemap file entry, conforming to the Sitemap XML format.
 * This class holds information about a single Sitemap, including its location and last modification timestamp.
 * It implements the {@link Sitemap} interface.
 *
 * <p>
 * A Sitemap file provides search engines with a list of URLs available for crawling.

            final String sessionId = crawler.execute();

            // Wait for crawler to start running with polling
            long startTime = System.currentTimeMillis();
            while (crawler.crawlerContext.getStatus() != CrawlerStatus.RUNNING && System.currentTimeMillis() - startTime < 5000) {
                try {
                    Thread.sleep(50);
                } catch (InterruptedException e) {

     *
     * @param in Input stream for a sitemap
     * @return a sitemap set
     */
    public SitemapSet parse(final InputStream in) {
        return parse(in, true);
    }

    /**
     * Parses a sitemap from the given input stream.
     * @param in the input stream to parse
     * @param recursive whether to recursively parse compressed files
     * @return the parsed sitemap set
     */

 * represents a valid sitemap. It uses a SitemapsHelper to validate the response body as an InputStream.
 * The rule checks if the URL matches the defined regex pattern and then validates the content as a sitemap.
 * If any exception occurs during the sitemap validation, it logs the error and returns false.
 *
 */
public class SitemapsRule extends RegexRule {
    /**

            if (item == null) {
                return new SuggestIndexResponse(0, 1, null, System.currentTimeMillis() - start);
            }
            final long parseTime = System.currentTimeMillis();
            final SuggestIndexResponse response = index(item);
            final long indexTime = System.currentTimeMillis();
            if (logger.isInfoEnabled()) {

    }

    /**
     * Adds a sitemap URL to the list of sitemaps.
     *
     * @param url The URL of the sitemap to be added
     */
    public void addSitemap(final String url) {
        if (!sitemapList.contains(url)) {
            sitemapList.add(url);
        }
    }

    /**
     * Returns an array of sitemap URLs.
     *
     * @return an array of sitemap URLs
     */