.orElseGet(() -> {
                                    HashCode hashCode = hasher.hash(file, fileMetadata.getLength(), fileMetadata.getLastModified());
                                    return vfsStorer.store(new RegularFileSnapshot(location, file.getName(), hashCode, fileMetadata));
                                })));
                    default:

        }
        // content_length
        putResultDataBody(dataMap, fessConfig.getIndexFieldContentLength(), Long.toString(responseData.getContentLength()));
        // last_modified
        final Date lastModified = getLastModified(dataMap, responseData);
        if (lastModified != null) {
            dataMap.put(fessConfig.getIndexFieldLastModified(), lastModified); // overwrite
            // timestamp

            }
        };
    }

    @Nullable
    private static Long hashFor(@Nullable LocallyAvailableExternalResource resource) {
        return resource == null ? null : resource.getMetaData().getLastModified().getTime();
    }

    @Override
    public boolean isUpToDate(String resource, @Nullable Long oldValue) {
        String[] parts = resource.split(";");
        if (!rootUriAsString.equals(parts[0])) {

            this.mode = mode
        }

        String getDisplayName() {
            return "display name"
        }

        File getFile() {
            return file
        }

        long getLastModified() {
            return file.lastModified()
        }

        boolean isDirectory() {
            return file.isDirectory()
        }

        long getSize() {
            return file.length()

            default:
                throw new AssertionError();
        }
    }

    @Override
    public FileType getType() {
        return type;
    }

    @Override
    public long getLastModified() {
        return lastModified;
    }

    @Override
    public long getLength() {
        return length;
    }

    @Override
    public AccessType getAccessType() {
        return accessType;

    }

    @Override
    public RelativePath getRelativePath() {
        return new RelativePath(!getArchiveEntry().isDirectory(), safeEntryName().split("/"));
    }

    @Override
    public long getLastModified() {
        return getArchiveEntry().getLastModifiedDate().getTime();
    }

    @Override
    public boolean isDirectory() {
        return getArchiveEntry().isDirectory();
    }

    @Override

     */
    boolean isDirectory();

    /**
     * Returns the last modified time of this file at the time of file traversal.
     *
     * @return The last modified time.
     */
    long getLastModified();

    /**
     * Returns the size of this file at the time of file traversal.
     *
     * @return The size, in bytes.
     */
    long getSize();

    /**

            }
        }
    }

    private long getArchiveTimeFor(FileCopyDetails details) {
        return preserveFileTimestamps ? details.getLastModified() : CONSTANT_TIME_FOR_TAR_ENTRIES;
    }

                    }
                    return false;
                }
                if (responseData.getLastModified() == null) {
                    return true;
                }
                if (responseData.getLastModified().getTime() <= lastModified.getTime() && httpStatusCode == 200) {

                    log(logHelper, LogType.NOT_MODIFIED, crawlerContext, urlQueue);

            return file;
        }

        @Override
        public boolean isDirectory() {
            return !relativePath.isFile();
        }

        @Override
        public long getLastModified() {
            return file.lastModified();
        }

        @Override
        public long getSize() {
            return file.length();
        }

        @Override