* @return a {@link File} representing the directory corresponding to the package
     */
    protected static File getPackageDir(final File rootDir, final String rootPackage) {
        File packageDir = rootDir;
        if (rootPackage != null) {
            for (final String name : rootPackage.split("\\.")) {
                packageDir = new File(packageDir, name);
            }
        }

        // search

    }

    /**
     * Retrieves all file authentication configurations associated with a specific file configuration.
     *
     * @param fileConfigId the ID of the file configuration to retrieve authentications for
     * @return a list of file authentication configurations for the specified file configuration
     */

/**
 * Service class for managing file configuration operations.
 * This service provides CRUD operations for file crawler configurations,
 * including retrieval, storage, deletion, and search functionality.
 * It handles pagination and integrates with the file authentication system.
 */
public class FileConfigService extends FessAppService {

    /**
     * Default constructor for file configuration service.

    }

    /**
     * Returns the file of the resource.
     *
     * @param url
     *            The resource URL. Must not be {@literal null}.
     * @return The file.
     */
    public static File getFile(final URL url) {
        assertArgumentNotNull("url", url);

        final File file = new File(getFileName(url));
        if (file != null && file.exists()) {
            return file;
        }

    protected ChannelUtil() {
    }

    /**
     * Returns a {@link ByteBuffer} that maps the file channel to memory.
     *
     * @param channel
     *            The file channel. Must not be {@literal null}.
     * @param mode
     *            The mode. Must not be {@literal null}.
     * @return A {@link ByteBuffer} that maps the file channel to memory.
     */

                if ("file".equals(resource.getProtocol())) {
                    final File directory = new File(resource.getFile());
                    if (directory.exists() && directory.isDirectory()) {
                        final File[] files = directory.listFiles(File::isDirectory);
                        if (files != null) {
                            for (final File file : files) {

                // Copy tempFile to the actual file
                try {
                    java.nio.file.Files.copy(tempFile.toPath(), new File(file.getPath()).toPath(),
                            java.nio.file.StandardCopyOption.REPLACE_EXISTING);
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
        };

        getStopwordsFile(dictId).ifPresent(file -> {
            if (stopwordsItem.getId() == 0) {
                file.insert(stopwordsItem);
            } else {
                file.update(stopwordsItem);
            }
        });
    }

    /**
     * Deletes a stopword item from the specified dictionary.
     *
     * @param dictId        The ID of the dictionary.

        return getSynonymFile(dictId).map(file -> file.get(id).get());
    }

    /**
     * Stores a synonym item in the specified dictionary.
     *
     * @param dictId      The ID of the dictionary.
     * @param synonymItem The synonym item to store.
     */
    public void store(final String dictId, final SynonymItem synonymItem) {
        getSynonymFile(dictId).ifPresent(file -> {
            if (synonymItem.getId() == 0) {

        }
    }

    @Test
    public void testFileBasedCacheCloseNonExistentFile() {
        tempFile = new File(Curl.tmpDir, "non-existent-file.tmp");
        assertFalse(tempFile.exists());

        ContentCache cache = new ContentCache(tempFile);

        // Should throw IOException when file doesn't exist
        try {
            cache.close();