*
 * The class provides methods for retrieving, adding, updating, and
 * deleting synonym items, as well as reloading the dictionary
 * from its source file.
 */
public class SynonymFile extends DictionaryFile<SynonymItem> {
    private static final String SYNONYM = "synonym";

    /** The list of synonym items loaded from the dictionary file. */
    List<SynonymItem> synonymItemList;

    /**

         final SynonymFile synonymFile = new SynonymFile(file1);
         final PagingList<SynonymItem> itemList1 = synonymFile.selectList(0, 20);
         assertEquals(5, itemList1.size());

         final SynonymItem synonymItem1 = itemList1.get(0);
         synonymFile.delete(synonymItem1);
         final PagingList<SynonymItem> itemList2 = synonymFile.selectList(0, 20);

        final SynonymCreator synonymCreator = new SynonymCreator();
        final SynonymFile synonymFile = (SynonymFile) synonymCreator.create(file1.getPath(), new Date());
        dictionaryManager.store(synonymFile, file1);
        final DictionaryFile<? extends DictionaryItem>[] synonymFiles = dictionaryManager.getDictionaryFiles();
        assertEquals(1, synonymFiles.length);
    }
    */

        dictionaryManager.addCreator(this);
    }

    /**
     * Creates a new {@link SynonymFile} instance.
     *
     * @param id        The unique identifier for the dictionary file.
     * @param path      The file path of the dictionary.
     * @param timestamp The last modified timestamp of the file.
     * @return A new {@link SynonymFile} associated with the dictionary manager.
     */
    @Override

     * @return An optional entity containing the synonym file, or empty if not found.
     */
    public OptionalEntity<SynonymFile> getSynonymFile(final String dictId) {
        return dictionaryManager.getDictionaryFile(dictId)
                .filter(SynonymFile.class::isInstance)
                .map(file -> OptionalEntity.of((SynonymFile) file))
                .orElse(OptionalEntity.empty());
    }

    /**

        form.dictId = dictId;
        validateApi(form, messages -> {});
        final SynonymFile file = synonymService.getSynonymFile(form.dictId).orElseGet(() -> {
            throwValidationErrorApi(messages -> messages.addErrorsFailedToUploadProtwordsFile(GLOBAL));
            return null;
        });
        try (InputStream inputStream = form.synonymFile.getInputStream()) {
            file.update(inputStream);

    /**
     * The multipart file containing the synonym mappings to be uploaded.
     * This file should contain synonym definitions in the appropriate format.
     */
    @Required
    public MultipartFormFile synonymFile;

    /**
     * Default constructor for UploadForm.
     * Creates a new instance with default values.
     */
    public UploadForm() {
        // Default constructor
    }

labels.scriptData=Script
labels.scriptResult=Result
labels.scriptType=Execution Method
labels.segmentation=Segmentation
labels.startTime=Start Time
labels.target=Target
labels.token=Token
labels.synonymFile=Synonym File
labels.stopwordsFile=Stopwords File
labels.stemmerOverrideFile=Stemmer Override File
labels.mappingFile=Mapping File
labels.protwordsFile=Protwords File
labels.kuromojiFile=Kuromoji File

labels.reading=讀音
labels.roleTypeIds=角色ID
labels.scriptData=腳本
labels.scriptResult=結果
labels.scriptType=執行方法
labels.segmentation=分段
labels.startTime=開始時間
labels.target=目標
labels.token=令牌
labels.synonymFile=同義詞檔案
labels.stopwordsFile=停用詞檔案
labels.stemmerOverrideFile=詞幹覆蓋檔案
labels.mappingFile=映射檔案
labels.protwordsFile=Protwords檔案
labels.kuromojiFile=Kuromoji檔案
labels.elevateWordFile=提升詞檔案
labels.badWordFile=不良詞檔案

        verifyToken(() -> uploadpage(form.dictId));
        return synonymService.getSynonymFile(form.dictId).map(file -> {
            try (InputStream inputStream = form.synonymFile.getInputStream()) {
                file.update(inputStream);
            } catch (final IOException e) {
                logger.warn("Failed to process a request.", e);