final File tempFile = ComponentUtil.getSystemHelper().createTempFile("tmp-adminplugin-", ".jar");
                try (final InputStream is = form.jarFile.getInputStream(); final OutputStream os = new FileOutputStream(tempFile)) {
                    CopyUtil.copy(is, os);
                } catch (final Exception e) {
                    if (tempFile.exists() && !tempFile.delete()) {

            case 1:
                importSystemProperties(fileName, tempFile);
                break;
            case 2:
                importGsaXml(fileName, tempFile);
                break;
            case 3:
                importBulk(fileName, tempFile);
                break;
            case 4:
                importFessJson(fileName, tempFile);
                break;
            case 5:

        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);

        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) {