* thumbnail processing during indexing.
 *
 * <p>The IndexingHelper manages bulk operations, handles retries on failures,
 * and provides various query-based operations for document management.
 * It also integrates with the thumbnail generation system and handles
 * the cleanup of old documents during updates.</p>
 */
public class IndexingHelper {
    /** Logger for this class */

/**
 * Interface for transforming and processing crawled documents in Fess.
 * Provides utility methods for URL processing, site extraction, data mapping,
 * and field configuration handling during the document transformation process.
 */
public interface FessTransformer {

    /**
     * Synchronized LRU cache for storing parent URL encodings.

     * @param outputFile the file where the processed thumbnail will be saved
     * @return the result of the image processing operation
     * @throws IOException if an error occurs during image reading or writing operations
     */
    protected Result saveImage(final ImageInputStream input, final File outputFile) throws IOException {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

    dir: String,
    exitOnFailure: Boolean = true,
) = """
    REPO=$dir
    if [ -e ${'$'}REPO ] ; then
        tree ${'$'}REPO
        rm -rf ${'$'}REPO
        echo "${'$'}REPO was polluted during the build"
        ${if (exitOnFailure) "exit 1" else ""}
    else
        echo "${'$'}REPO does not exist"
    fi

    """.trimIndent()

fun checkCleanDirWindows(
    dir: String,

 * <p>
 * This service handles character mapping management including CRUD operations
 * and list retrieval. Character mappings are used for text normalization
 * and character substitution during document processing and search operations.
 * </p>
 */
public class CharMappingService {

    /**
     * Creates a new instance of CharMappingService.
     */
    public CharMappingService() {

     * Rewrites the query using the provided rewrite context.
     *
     * @param queryShardContext the query rewrite context
     * @return the rewritten query builder
     * @throws IOException if an I/O error occurs during rewriting
     */
    @Override
    public QueryBuilder rewrite(final QueryRewriteContext queryShardContext) throws IOException {
        return queryBuilder.rewrite(queryShardContext);
    }

    @Override

    public String toString() {
        return "ProtwordsFile [path=" + path + ", protwordsItemList=" + protwordsItemList + ", id=" + id + "]";
    }

    /**
     * Updater class for processing protwords items during dictionary updates.
     * This class handles the writing and committing of changes to the dictionary file.
     */
    protected class ProtwordsUpdater implements Closeable {

 * and initialization, including SSL setup, context path handling, and resource management.
 *
 * <p>The class handles system property configuration for paths, ports, and other
 * Fess-specific settings during application startup.</p>
 *
 * @since 1.0
 */
public class FessBoot extends TomcatBoot {

    /** Configuration file name for logging properties */

     * When enabled, thumbnails are generated for supported file types.
     */
    @Size(max = 10)
    public String thumbnail;

    /**
     * Types of crawling failures to ignore during crawling operations.
     * Specified failure types will not be logged or counted as errors.
     */
    @Size(max = 1000)
    public String ignoreFailureType;

    /**

        if (thumbnailManager != null) {
            try {
                thumbnailManager.destroy();
            } catch (Exception e) {
                // Ignore exceptions during teardown
            }
        }
        if (tempDir != null && tempDir.exists()) {
            deleteDirectory(tempDir);
        }
        super.tearDown(testInfo);
    }