verifyTokenKeep(() -> downloadpage(form.dictId));
        return protwordsService.getProtwordsFile(form.dictId)
                .map(file -> asStream(new File(file.getPath()).getName()).contentTypeOctetStream().stream(out -> {
                    file.writeOut(out);
                }))
                .orElseGet(() -> {

     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public ActionResponse download(final DownloadForm form) {
        verifyToken(this::asDownloadHtml);

        return asStream("badword.csv").contentTypeOctetStream().stream(out -> {
            final Path tempFile = ComponentUtil.getSystemHelper().createTempFile("fess-badword-", ".csv").toPath();
            try {

        final String diagnosticId = "log" + new SimpleDateFormat("yyyyMMddHHmm").format(ComponentUtil.getSystemHelper().getCurrentTime());
        return asStream(diagnosticId + ".zip").contentTypeOctetStream().stream(out -> {
            try (ZipOutputStream zos = new ZipOutputStream(out.stream())) {
                writeLogFiles(zos, diagnosticId);
                writeSystemProperties(zos, diagnosticId);

                    op -> op.exclude(Stream.concat(Stream.of(Constants.COMMON_CONVERSION_RULE), Stream.of(Constants.PERMISSIONS))
                            .toArray(n -> new String[n])));
            final PermissionHelper permissionHelper = ComponentUtil.getPermissionHelper();
            entity.setPermissions(split(form.permissions, "\n").get(

        verifyTokenKeep(() -> downloadpage(form.dictId));
        return kuromojiService.getKuromojiFile(form.dictId)
                .map(file -> asStream(new File(file.getPath()).getName()).contentTypeOctetStream().stream(out -> {
                    file.writeOut(out);
                }))
                .orElseGet(() -> {

        verifyTokenKeep(() -> downloadpage(form.dictId));
        return charMappingService.getCharMappingFile(form.dictId)
                .map(file -> asStream(new File(file.getPath()).getName()).contentTypeOctetStream().stream(out -> {
                    file.writeOut(out);
                }))
                .orElseGet(() -> {

        verifyTokenKeep(() -> downloadpage(form.dictId));
        return stemmerOverrideService.getStemmerOverrideFile(form.dictId)
                .map(file -> asStream(new File(file.getPath()).getName()).contentTypeOctetStream().stream(out -> {
                    file.writeOut(out);
                }))
                .orElseGet(() -> {

     * @return ActionResponse with the file download stream
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public ActionResponse download(final DownloadForm form) {
        validate(form, messages -> {}, () -> downloadpage(form.dictId));
        verifyTokenKeep(() -> downloadpage(form.dictId));
        return synonymService.getSynonymFile(form.dictId)

	// If the request context is canceled, the stream will no longer process requests.
	// Requests sent cannot be used any further by the called.
	Requests chan<- []byte

	muxID uint64
	ctx   context.Context
}

// Send a payload to the remote server.
func (s *Stream) Send(b []byte) error {
	if s.Requests == nil {
		return errors.New("stream does not accept requests")
	}
	select {

	"github.com/tinylib/msgp/msgp"
	"github.com/valyala/bytebufferpool"
)

// metadata stream format:
//
// The stream is s2 compressed.
// https://github.com/klauspost/compress/tree/master/s2#s2-compression
// This ensures integrity and reduces the size typically by at least 50%.
//
// All stream elements are msgpack encoded.
//
// 1 Integer, metacacheStreamVersion of the writer.