XSQL servlet cannots set Content-Disposition

Question

XSQLPageRequestImpl does not have a method to set the value of the "Content-Disposition" parameter of the HttpServletResponse.
In the PLSQL Package HTP one can set additional headers of the HttpServletResponse.
Currently, due to the lack of support of XSQLPageRequestImpl, it is not possible to provide proper filename to save e.g. servlet output.
Something like
res.setHeader("Content-disposition","attachment; filename=\""+pathName+"\"")
is needed at serializer level and therefore shall be implemented in XSQLPageRequestImpl or at least accessible from it.

Answer 1

The following code does the job.
import oracle.xml.parser.v2.XMLElement;
import oracle.xml.xsql.XSQLDocumentSerializer;
import org.w3c.dom.*;
import oracle.xml.xsql.XSQLPageRequest;
import oracle.xml.xsql.XSQLServletPageRequest;
import oracle.xml.sql.core.OracleXMLConvert;
import java.io.OutputStream;
import javax.activation.*;
import javax.servlet.http.HttpServletResponse;
public class BLOBSerializer implements XSQLDocumentSerializer {
public BLOBSerializer() { }
public void serialize(Document doc, XSQLPageRequest env) throws java.lang.Throwable {
XMLElement docRoot=(XMLElement)doc.getDocumentElement();
String contentDisp="attachment; filename="+docRoot.valueOf("./filename");
XSQLServletPageRequest xspr=(XSQLServletPageRequest)env;
HttpServletResponse hsp=xspr.getHttpServletResponse();
hsp.setHeader("Content-disposition",contentDisp);
OutputStream out = env.getOutputStream();
env.setContentType(docRoot.valueOf("./request/parameters/doc_type"));
String DocString=docRoot.valueOf("./ROWSET/ROW/DOCUMENT");
byte abyte0[] = oracle.xml.sql.core.OracleXMLConvert.convertHexStringToByte(DocString);
out.write(abyte0, 0, abyte0.length);
out.flush();
out.close();