return asStream(id).contentTypeOctetStream().stream(out -> {
                    final Path fessJsonPath = getFessJsonPath();
                    try (final InputStream in = Files.newInputStream(fessJsonPath)) {
                        out.write(in);
                    }
                });
            } else if ("doc.json".equals(id)) {

        @Override
        public Path getPath() {
            return path;
        }

        @Override
        public InputStream openStream() throws IOException {
            return Files.newInputStream(src);
        }

        @Override
        public String getLocation() {
            return src.toString();
        }

        @Override
        public Source resolve(String relative) {

                    syncContext.acquire(null, Collections.singleton(metadata));

                    if (metadata.getPath() != null && Files.exists(metadata.getPath())) {
                        try (InputStream in = Files.newInputStream(metadata.getPath())) {
                            versioning = new Versioning(
                                    new MetadataStaxReader().read(in, false).getVersioning());
                        }

                lock = channel.lock();

                if (touchfile.canRead()) {
                    getLogger().debug("Reading resolution-state from: " + touchfile);
                    props.load(Channels.newInputStream(channel));
                }

                props.setProperty(key, Long.toString(System.currentTimeMillis()));

                if (error != null) {

        if (Files.isDirectory(filePath)) {
            filePath = filePath.resolve("index.html");
        }
        if (Files.exists(filePath)) {
            try (InputStream in = Files.newInputStream(filePath); ServletOutputStream out = response.getOutputStream()) {
                response.setStatus(HttpServletResponse.SC_OK);
                writeHeaders(response);
                CopyUtil.copy(in, out);

                    syncContext.acquire(null, Collections.singleton(metadata));

                    if (metadata.getPath() != null && Files.exists(metadata.getPath())) {
                        try (InputStream in = Files.newInputStream(metadata.getPath())) {
                            versioning = new Versioning(
                                    new MetadataStaxReader().read(in, false).getVersioning());

                            /*

                    throwValidationError(messages -> messages.addErrorsFailedToDownloadBadwordFile(GLOBAL), this::asDownloadHtml);
                }
                try (InputStream in = Files.newInputStream(tempFile)) {
                    out.write(in);
                }
            } finally {
                Files.delete(tempFile);
            }
        });
    }

            throws ParserException, IOException {
        try {
            if (extensionsFile != null && Files.exists(extensionsFile)) {
                try (InputStream is = Files.newInputStream(extensionsFile)) {
                    return new CoreExtensionsStaxReader().read(is, true).getExtensions();
                }
            }
            return List.of();
        } catch (XMLStreamException e) {

                    throwValidationError(messages -> messages.addErrorsFailedToDownloadElevateFile(GLOBAL), this::asDownloadHtml);
                }
                try (InputStream in = Files.newInputStream(tempFile)) {
                    out.write(in);
                }
            } finally {
                Files.delete(tempFile);
            }
        });
    }

            return;
        }
        Properties props = new Properties();
        try ( FileChannel ch = FileChannel.open(config, StandardOpenOption.READ);
              InputStream is = Channels.newInputStream(ch) ) {
            props.load(is);

        }
        if ( !props.isEmpty() ) {
            Map<String, String> map = toMap(props);
            String cfgname = fname.substring(0, fname.length() - 5);