No idea where that could come from. I think the only thing you can do is
profile the JVM and find out where exactly the time is lost. When you
say transformer.transform() takes more than 30 seconds it can still be
one of thousand things. Profiling is the only option really.
Jeremias Maerki
On 28.11.2007 16:46:46 Noya Paolo wrote:
> I'm using FOP 0.94 with JDK 1.4 for producing a simple 1 page PDF
> transforming a simple XML on a Mandrake Linux release 9.2 for i586.
> If I try with command line the result is about in 3 or 4 second.
> Next I write a Servlet on JRun 4.0:
>
> public void init() throws ServletException {
> uriResolver = new ServletContextURIResolver(getServletContext());
> TransformerFactory tFactory = TransformerFactory.newInstance();
>
> tFactory.setURIResolver(uriResolver);
>
> //Cache del template XSLT
> try {
> Source xsltSrc =
> uriResolver.resolve("servlet-context:/template/fo.xsl", null);
> cachedXSLT = tFactory.newTemplates(xsltSrc);
> } catch (Exception e) {
> throw new ServletException(e);
> }
>
> //config di FOP
> fopFactory = FopFactory.newInstance();
> fopFactory.setURIResolver(uriResolver);
> fopFactory.setSourceResolution(96); //96dpi
> fopFactory.setTargetResolution(96); //96dpi
> }
>
> protected void doPost(HttpServletRequest request, HttpServletResponse
> response) throws ServletException, IOException {
> (...)
>
> ByteArrayOutputStream pdf = new ByteArrayOutputStream();
>
> Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF,
> fopFactory.newFOUserAgent(), pdf);
>
> Transformer transformer = cachedXSLT.newTransformer();
> transformer.setURIResolver(uriResolver);
>
> Result res = new SAXResult(fop.getDefaultHandler());
>
> Source src = new StreamSource(new StringReader(theXML));
>
> transformer.setParameter("param", "value");
> transformer.transform(src, res);
>
> (...)
> }
>
> All work fine but the latter line (transformer.transform(src, res);)
> take about 40 seconds to generate PDF, I saw that during transformation
> CPU usage is about 50% user and about 10% system.
> Can anyone tell me what is the problem?
>
> Thanks in advance for your kind attention
> Paolo
>
>
>
>
>
>
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