Metacat

  public InputSource resolveEntity (String publicId, String systemId)

                     throws SAXException

  {

    String dbSystemID;

    String doctype = null;

        DBSAXHandler dhandler = null;

        dhandler = (DBSAXHandler)handler;

        if ( dhandler.processingDTD() ) {

          // public ID is doctype

          if (publicId != null) {

            doctype = publicId;

          // assume public ID (doctype) is docname

          } else if (systemId != null) {

            doctype = dhandler.getDocname();

    // get System ID for doctype

    if (doctype != null) {

      // look at db XML Catalog for System ID

      dbSystemID = getDTDSystemID(doctype);

      boolean doctypeIsInDB = true;

      // no System ID found in db XML Catalog

      if (dbSystemID == null) {

        if (systemId != null) {

          dbSystemID = systemId;

        }

      }

      // there are dtd text provided; try to upload on Metacat

      if ( dtdtext != null ) {

      return is;

    } else {

      // use provided systemId for the other cases

      InputStream istream = checkURLConnection(systemId);

      return null;