[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Converting Document object (DOM) into inputsource for XS
Do you mean that for small document (less than 10Kb), it's faster to transform DOM into byte[] and then reparse it ? Did I understand well? Thank for your help . Sebastien > -----Original Message----- > From: Maxime Levesque [mailto: ] > Sent: jeudi 26 août 1999 22:11 > To: xsl-list@xxxxxxxxxxxxxxxx > Subject: RE: Converting Document object (DOM) into inputsource for XSL > process ing in XT > > > > > My experiments with piping streams is that unless the size > of your stream > is too big for your memory, your the performance is better > when shoving > it in a byte array... > > > > Have you looked at using the PipedInputStream and PipedOutputStream > > combination? To gain the advantage, you would need to have > two Threads. > > The first thread would create a PipedOutputStream and write your > > DOM document > > to the stream. The second thread would create a PipedInputStream, > > using the > > previously created PipedOutputStream in the constructor. > > > > The advantage is you avoid having to convert the whole DOM tree > > to a byte array > > before sending it off to the the XSL processor. With the piped > > streams, the XSL > > processor could start processing the XML before the DOM > tree is fully > > converted. > > > > What I don't know is if the overhead of spawning a new Thread is > > worse than > > creating the byte arrary. As the file gets larger however, the > > piped streams > > would have more of an advantage. > > > > The code would look something like this. > > > > PipedOutputStream pipeOut = new PipedOutputStream(); > > DOMWriter dw = new DOMWriter(pipeOut, (XmlDocument)myDOMDocument); > > dw.start(); > > PipedInputStream pipeIn = new PipedInputStream(pipeOut); > > InputSource inputSource = new InputSource(pipeIn); > > myXslProcessor.parse(inputSource); > > > > public class DOMwriter extends Thread { > > OutputStream mOut; > > XmlDocument mDoc; > > DOMwriter(OutputStream out, XmlDocument doc) { > > mOut = out; > > mDoc = doc; > > } > > public void run() { > > mDoc.write(mOut); > > } > > } > > > > > > > > Beside this, I tried using DOM directly with XSL:P > processor, but it > > > wasn't faster than XT solution, so I'm deducting that it > take longer > > > to work with DOM that to parse again the XML document and > then work > > > with it internal and lightweight representation, is it true ? > > > > > > Thank for any reply, I would really appreciate. > > > > > > Sebastien Sahuc > > > ssahuc@xxxxxxxxxxxxxx > > > > > > > > > XSL-List info and archive: > http://www.mulberrytech.com/xsl/xsl-list > > >-- End of excerpt > from Sebastien Sahuc > > > > Dan > > > > -- > > <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><> > > <> Dan Machak <> machak@xxxxxxxxxxxx <> > > <> MS T27A-1 <> 650-604-2388 (VOICE) <> > > <> NASA Ames Research Center <> 650-604-3957 (FAX) <> > > <> Moffett Field, CA 94035-1000 <> <> > > <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><> > > > > > > XSL-List info and archive: > http://www.mulberrytech.com/xsl/xsl-list > > > > > XSL-List info > and archive: http://www.mulberrytech.com/xsl/xsl-list > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
|
PURCHASE STYLUS STUDIO ONLINE TODAY!Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced! Download The World's Best XML IDE!Accelerate XML development with our award-winning XML IDE - Download a free trial today! Subscribe in XML format
|