return asStream("elevate.csv").contentTypeOctetStream().stream(out -> {
            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);

                final File tempFile = ComponentUtil.getSystemHelper().createTempFile("esreq_", ".json");
                try (final InputStream in = response.getContentAsStream()) {
                    CopyUtil.copy(in, tempFile);
                } catch (final Exception e1) {
                    if (tempFile != null && tempFile.exists() && !tempFile.delete()) {

        return asStream("badword.csv").contentTypeOctetStream().stream(out -> {
            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) {

        }

        return process(thumbnailId, responseData -> {
            final File tempFile = ComponentUtil.getSystemHelper().createTempFile("thumbnail_", "");
            try {
                CopyUtil.copy(responseData.getResponseBody(), tempFile);

                final String tempPath = tempFile.getAbsolutePath();
                final String outputPath = outputFile.getAbsolutePath();