import org.dbflute.optional.OptionalEntity;

public class CharMappingFile extends DictionaryFile<CharMappingItem> {
    private static final Logger logger = LogManager.getLogger(CharMappingFile.class);

    private static final String MAPPING = "mapping";

    List<CharMappingItem> mappingItemList;

    public CharMappingFile(final String id, final String path, final Date timestamp) {
        super(id, path, timestamp);

        }).orElse(Collections.emptyList());
    }

    public OptionalEntity<CharMappingFile> getCharMappingFile(final String dictId) {
        return dictionaryManager.getDictionaryFile(dictId).filter(CharMappingFile.class::isInstance)
                .map(file -> OptionalEntity.of((CharMappingFile) file)).orElse(OptionalEntity.empty());
    }

        validateApi(form, messages -> {});
        final CharMappingFile file = charMappingService.getCharMappingFile(form.dictId).orElseGet(() -> {
            throwValidationErrorApi(messages -> messages.addErrorsFailedToUploadProtwordsFile(GLOBAL));
            return null;
        });
        try (InputStream inputStream = form.charMappingFile.getInputStream()) {
            file.update(inputStream);

        dictionaryManager.addCreator(this);
    }

    @Override
    protected DictionaryFile<? extends DictionaryItem> newDictionaryFile(final String id, final String path, final Date timestamp) {
        return new CharMappingFile(id, path, timestamp).manager(dictionaryManager);
    }

/**
 * @author nullpos
 * @author ma2tani
 */
public class UploadForm {

    @Required
    public String dictId;

    @Required
    public MultipartFormFile charMappingFile;

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