Cannot view PDF created by passing xml and XSL-FO using UTL_HTTP

Question

Hi,
Using UTL_HTTP Iam trying to contact a servlet which uses the input XML and XSL/FO to produce a PDF.However, when I run the procedure , I get the following error 'File does not begin with -%PDF' ? I checked the output on the console and the blob values does not start with %PDF . Below is the sample from my code , please let me know if Iam commiting a mistake somewhere. I confirmed that the servlet itself is working fine by confirming with test webpage that takes xml and stylesheet input and generates a PDF when 'submitted' to servlet on the click of a button.
INSERT INTO TESTPDF ( PDF_REPORT ) VALUES ( Empty_Blob() ) RETURNING PDF_REPORT INTO vBlobRef;
vReportURL :='/rufop/fop?xml='||xmldoc||'&xsltRPath=../../test/PAXSL.xsl';
req := UTL_HTTP.BEGIN_REQUEST (url=>vReportURL, method=>'POST');
resp := utl_http.get_response(req);
loop
begin
Utl_Http.read_raw(resp, vData);
Dbms_Lob.writeAppend ( lob_loc => vBlobRef , amount => Utl_Raw.length(vData) , buffer => vData );
exception
when utl_http.end_of_body then
exit;
end;
end loop;
Utl_Http.end_response(resp);
owa_util.mime_header('application/pdf',false);
htp.p('Content-Disposition: inline; filename="test.pdf"');
htp.p('Content-Length: '|| dbms_lob.getlength(vBlobRef));
owa_util.http_header_close;
wpg_docload.download_file(vBlobRef);
Thanks in advance,
Jen

Answer 1

Hello guys! I have been assigned the same task,i.e to generate pdf through xml using xsl stylesheet.
I have a procedure which is creating the xml and the stylesheet. But I have no idea how to write the procedure which passes this xml to fo engine. I am very new to this. Can anyone please share your thoughts with me so as how to accomplish this? By reading blogs on internet I figured I would have to use UTIL_HTTP but don't know how.
Sunny
Edited by: 887252 on May 29, 2012 1:24 AM