verifyTokenKeep(() -> downloadpage(form.dictId));
        return stopwordsService.getStopwordsFile(form.dictId)
                .map(file -> asStream(new File(file.getPath()).getName()).contentTypeOctetStream().stream(out -> {
                    file.writeOut(out);
                })).orElseGet(() -> {
                    throwValidationError(messages -> messages.addErrorsFailedToDownloadStopwordsFile(GLOBAL),

        // WEB-INF/env/thumbnail/lib
        appendJarFile(cpSeparator, buf, new File(servletContext.getRealPath("/WEB-INF/env/" + getExecuteType() + "/lib")),
                "WEB-INF" + File.separator + "env" + File.separator + getExecuteType() + File.separator + "lib" + File.separator);
        // WEB-INF/plugin
        appendJarFile(cpSeparator, buf, new File(servletContext.getRealPath("/WEB-INF/plugin")),

        // WEB-INF/env/suggest/lib
        appendJarFile(cpSeparator, buf, new File(servletContext.getRealPath("/WEB-INF/env/" + getExecuteType() + "/lib")),
                "WEB-INF" + File.separator + "env" + File.separator + getExecuteType() + File.separator + "lib" + File.separator);
        // WEB-INF/plugin
        appendJarFile(cpSeparator, buf, new File(servletContext.getRealPath("/WEB-INF/plugin")),

            if (e.getCause() == null) {
                logger.debug(e.getMessage());
            } else {
                logger.warn("Failed to process {}", id, e);
            }
        } catch (final Exception e) {
            logger.warn("Failed to process {}", id, e);
        }
        return false;
    }

    protected boolean process(final String id, final Predicate<ResponseData> consumer) {

                }
            } catch (final Exception e) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Failed to parse {}", pager.requestedTimeRange, e);
                }
            }
        }
    }

    private void createFavoriteLogCondition(final SearchLogPager pager, final FavoriteLogCB cb) {

    }

    public File createTempFile(final String prefix, final String suffix) {
        try {
            final File file = File.createTempFile(prefix, suffix);
            if (logger.isDebugEnabled()) {
                logger.debug("Create {} as a temp file.", file.getAbsolutePath());
            }
            return file;
        } catch (final IOException e) {

            return true;
        });
    }

    public boolean update(final String id, final String field, final Object value) {
        return ComponentUtil.getSearchEngineClient().update(ComponentUtil.getFessConfig().getIndexDocumentUpdateIndex(), id, field, value);
    }

    public boolean update(final String id, final Consumer<UpdateRequestBuilder> builderLambda) {
        try {

        } catch (final Exception e) {
            logger.warn("Failed to delete UrlFilter for {}", sid, e);
        }

        try {
            // clear queue
            urlQueueService.clearCache();
            urlQueueService.delete(sid);
        } catch (final Exception e) {
            logger.warn("Failed to delete UrlQueue for {}", sid, e);
        }

        try {
            // clear

                    putResultDataBody(dataMap, fessConfig.getIndexFieldHasCache(), Constants.TRUE);
                } catch (final Exception e) {
                    logger.warn("Failed to write a cache: {}:{}", sessionId, responseData, e);
                }
            } else {
                logger.debug("Content size is too large({} > {}): {}", responseData.getContentLength(),

                        "Failed to process metadata.", e);
            }
        }).orElseThrow(() -> new SsoMessageException(
                messages -> messages.addErrorsFailedToProcessSsoRequest(UserMessages.GLOBAL_PROPERTY_KEY, "Invalid state."),
                "Failed to process metadata.", new SsoProcessException("Invalid state.")));
    }