public float getWeight() {
            return 0.0f;
        }

        @Override
        public void setCreateTime(Long createTime) {
        }

        @Override
        public void setLastModified(Long lastModified) {
        }

        @Override
        public void setDepth(Integer depth) {
        }

        @Override
        public void setParentUrl(String parentUrl) {
        }

                // TODO should this be inside the above check?
                // touch file so that this is not checked again until interval has passed
                if (file.exists()) {
                    file.setLastModified(System.currentTimeMillis());
                }
            }
        }

        try {
            mergeMetadata(metadata, remoteRepositories, localRepo);

                            if (!downloaded) {
                                // prevent additional checks of this artifact until it expires again
                                destination.setLastModified(System.currentTimeMillis());
                            }
                        } catch (UnsupportedOperationException e) {
                            // older wagons throw this. Just get() instead

                if (lastModified == null) {
                    return true;
                }
                urlQueue.setLastModified(lastModified.getTime());
                log(logHelper, LogType.CHECK_LAST_MODIFIED, crawlerContext, urlQueue);

                if (responseData == null) {
                    // head method

     * <br>
     * This method does not apply to workgroups, servers, or shares.
     *
     * @see #setCreateTime
     * @see #setLastAccess
     * @see #setLastModified
     *
     * @param createTime
     *            the create time as milliseconds since Jan 1, 1970
     * @param lastModified
     *            the last modified time as milliseconds since Jan 1, 1970

            checkMaxContentLength(responseData);

            responseData.setHttpStatusCode(Constants.OK_STATUS_CODE);
            responseData.setCharSet(getCharset());
            responseData.setLastModified(statObject.lastModified() == null ? null : Date.from(statObject.lastModified().toInstant()));
            responseData.setMimeType(statObject.contentType());

            return 1000L;
        }

        @Override
        public Long getLastModified() {
            return System.currentTimeMillis();
        }

        @Override
        public void setLastModified(Long lastModified) {
            // Do nothing in test
        }

        @Override
        public AccessResultData<String> getAccessResultData() {
            return null;
        }

                if (generator.isAvailable()) {
                    if (!generator.generate(entity.getThumbnailId(), outputFile)) {
                        new File(outputFile.getAbsolutePath() + NOIMAGE_FILE_SUFFIX).setLastModified(systemHelper.getCurrentTimeAsLong());
                    } else {
                        final long interval = fessConfig.getThumbnailGeneratorIntervalAsInteger().longValue();
                        if (interval > 0) {

            }
        }

        if (file.isFile()) {
            responseData.setHttpStatusCode(Constants.OK_STATUS_CODE);
            responseData.setCharSet(Constants.UTF_8);
            responseData.setLastModified(file.getTimestamp().getTime());

            // check file size
            responseData.setContentLength(file.getSize());
            checkMaxContentLength(responseData);

   */
  @SuppressWarnings("GoodTime") // reading system time without TimeSource
  public static void touch(File file) throws IOException {
    checkNotNull(file);
    if (!file.createNewFile() && !file.setLastModified(System.currentTimeMillis())) {
      throw new IOException("Unable to update modification time of " + file);
    }
  }

  /**