* This method manages local caches and fetches from OpenSearch when needed.
     *
     * @param sessionId The session ID.
     * @return The next URL queue entry, or null if none available.
     */
    @Override
    public OpenSearchUrlQueue poll(final String sessionId) {
        final QueueHolder queueHolder = getQueueHolder(sessionId);

                final ExtractData extractData = new ExtractData(content);
                final long contentLength;
                if (isByteStream) {
                    contentLength = ((ByteArrayInputStream) inputStream).available();
                } else {
                    contentLength = tempFile != null ? tempFile.length() : 0;
                }
                extractData.putValue("Content-Length", Long.toString(contentLength));

      not limited to compiled object code, generated documentation,
      and conversions to other media types.

      "Work" shall mean the work of authorship, whether in Source or
      Object form, made available under the License, as indicated by a
      copyright notice that is included in or attached to the work
      (an example is provided in the Appendix below).

     * @return the embedded file, or null if not found
     */
    protected PDEmbeddedFile getEmbeddedFile(final PDComplexFileSpecification fileSpec) {
        // search for the first available alternative of the embedded file
        PDEmbeddedFile embeddedFile = null;
        if (fileSpec != null) {
            embeddedFile = fileSpec.getEmbeddedFileUnicode();
            if (embeddedFile == null) {

        try {
            final StandardQueryParser parser = new StandardQueryParser();
            parser.setDefaultOperator(StandardQueryConfigHandler.Operator.AND);

            // Parse with the first field if available, otherwise use "default"
            String defaultField = fields != null && fields.length > 0 ? fields[0] : "default";
            termQueryList = getTermQueryList(parser.parse(q, defaultField), fields);

        <match value="facet " offset="7:256" type="string"/>
      </match>
    </magic>
  </mime-type>
  <mime-type type="model/x.stl-binary">
    <_comment>no magic available</_comment>
    <glob pattern="*.stl"/>
  </mime-type>
  <mime-type type="model/vnd.dwf">
    <acronym>DWF</acronym>
    <_comment>AutoCAD Design Web Format</_comment>
    <alias type="drawing/x-dwf"/>