@Execute
    public StreamResponse get$file(final String id) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        if (stream(fessConfig.getIndexBackupAllTargets()).get(stream -> stream.anyMatch(s -> s.equals(id)))) {
            if ("system.properties".equals(id)) {
                return asStream(id).contentTypeOctetStream().stream(out -> {
                    try (final ByteArrayOutputStream baos = new ByteArrayOutputStream()) {

import com.google.common.cache.CacheBuilder;

public class FessConfigImpl extends FessConfig.SimpleImpl {

    private static final long serialVersionUID = 1L;

    @Override
    protected ObjectiveProperties newObjectiveProperties(final String resourcePath, final PropertyFilter propertyFilter) {
        return new ObjectiveProperties(resourcePath) { // for e.g. checking existence and filtering value

        public static final String FAIL_FAST = "ff";
        public static final String FAIL_AT_END = "fae";
        public static final String FAIL_NEVER = "fn";
        public static final String RESUME = "r";
        public static final String RESUME_FROM = "rf";
        public static final String PROJECT_LIST = "pl";
        public static final String ALSO_MAKE = "am";
        public static final String ALSO_MAKE_DEPENDENTS = "amd";

     * @throws SQLRuntimeException
     *             If a {@link SQLException} occurs.
     */
    public static ResultSet executeQuery(final PreparedStatement ps) throws SQLRuntimeException {
        assertArgumentNotNull("ps", ps);

        try {
            return ps.executeQuery();
        } catch (final SQLException ex) {
            throw new SQLRuntimeException(ex);
        }
    }

    /**
     * Executes the update.

     */
    public void delete(final AccessToken accessToken) {

        accessTokenBhv.delete(accessToken, op -> op.setRefreshPolicy(Constants.TRUE));

    }

    /**
     * Set up the list condition.
     * @param cb The callback.
     * @param accessTokenPager The pager for access token.
     */
    protected void setupListCondition(final AccessTokenCB cb, final AccessTokenPager accessTokenPager) {

    private final int searchAttributes;
    private final String oldFileName;
    private final String newFileName;

    /**
     * Constructs a rename request.
     *
     * @param config the configuration
     * @param oldFileName the current file name
     * @param newFileName the new file name
     */
    public SmbComRename(final Configuration config, final String oldFileName, final String newFileName) {

    /** Property name for proxy authentication scheme setting */
    public static final String PROXY_AUTH_SCHEME_PROPERTY = "proxyAuthScheme";

    /** Property name for proxy credentials setting */
    public static final String PROXY_CREDENTIALS_PROPERTY = "proxyCredentials";

    /** Property name for user agent setting */

        return 0;
    }

    @Override
    protected int writeBytesWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    @Override
    protected int readParameterWordsWireFormat(final byte[] buffer, int bufferIndex) {
        final int start = bufferIndex;
        this.isLoggedInAsGuest = ((buffer[bufferIndex] & 0x01) == 0x01) == true;

            if (permissions == null) {
                final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
                final Set<String> permissionSet = new HashSet<>();
                final IAccount account = authResult.account();
                final String homeAccountId = account.homeAccountId();
                final String username = account.username();
                if (logger.isDebugEnabled()) {

     */
    @Execute
    public JsonResponse<ApiResult> settings(final SearchBody body) {
        validateApi(body, messages -> {});
        final FileConfigPager pager = copyBeanToNewBean(body, FileConfigPager.class);
        final List<FileConfig> list = fileConfigService.getFileConfigList(pager);
        return asJson(