logger.debug("Fess JSON import started: fileName={}", fileName);
        }

        try (final InputStream in = new FileInputStream(tempFile); final OutputStream out = Files.newOutputStream(getFessJsonPath())) {
            CopyUtil.copy(in, out);

            if (logger.isInfoEnabled()) {
                logger.info("Fess JSON import completed successfully: fileName={}", fileName);
            }

            final Path tempFile = ComponentUtil.getSystemHelper().createTempFile("fess-badword-", ".csv").toPath();
            try {
                try (Writer writer = new BufferedWriter(new OutputStreamWriter(Files.newOutputStream(tempFile), getCsvEncoding()))) {
                    badWordService.exportCsv(writer);
                } catch (final Exception e) {
                    logger.warn("Failed to process a request.", e);

            final Path tempFile = ComponentUtil.getSystemHelper().createTempFile("fess-elevate-", ".csv").toPath();
            try {
                try (Writer writer = new BufferedWriter(new OutputStreamWriter(Files.newOutputStream(tempFile), getCsvEncoding()))) {
                    elevateWordService.exportCsv(writer);
                } catch (final Exception e) {
                    logger.warn("Failed to process a request.", e);