Ivelin, Thank you for spearheading this!
I am currently moving my code to Saxon to improve performance; it's quite a bit more painful than I thought--will post my observations shortly. Point being XSLT performance is really important as you have been saying, and thanks for getting this moving. Stephen Ng Lumigent > -----Original Message----- > From: Ivelin Ivanov [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, May 21, 2002 9:33 AM > To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED] > Cc: [EMAIL PROTECTED] > Subject: Re: XSLTC and Cocoon > > > > Folks, > > > The XSLTC team is trying to resolve the issues preventing > XSLTC from being used in Cocoon. > > Please see below the problem they got into and try to help, > if you can. > > > > BTW, Tom, > > I think I can safely suggest that you post further issues > related to Cocoon directly to the dev list. It is of common > interest that XSLTC gets in Cocoon. > > > Regards, > > Ivelin > > > ----- Original Message ----- > From: "Tom Amiro" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]>; "Ivelin Ivanov" > <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> > Sent: Monday, May 20, 2002 2:34 PM > Subject: Re: XSLTC and Cocoon > > > > Hi, > > > > After modifying ./documentation/stylesheets/book2menu.xsl so XSLTC > > could compile it, I got to the next problem, which doesn't > appear to > > be XSLTC related. > > > > After bringing up the http://localhost:8080/cocoon and > clicking on the > > Documentation link, it throws > > > > java.lang.NullPointerException > > at > org.apache.cocoon.components.notification.DefaultNotifyingBuil > der.build(Defa > ultNotifyingBuilder.java:111) > > at > org.apache.cocoon.components.notification.DefaultNotifyingBuil > der.build(Defa > ultNotifyingBuilder.java:170) > > at > org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet. > java:1083) > > at > javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilt > er(Application > FilterChain.java:247) > > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(Appli > cationFilterCh > ain.java:193) > > > > The error happens in a block that traps a SAXParserException on the > following line of > > code > > > > n.addExtraDescription("location", sourceLocator.getSystemId()); > > > > What do you suggest you/we do to get further? > > > > -- > > Tom Amiro -- SQA Engineer > > Sun XML Technology Development > > voice: 781-442-0589 Fax: 781-442-1437 > > eMail: tom.amiro@.sun.com > > > > Tom Amiro wrote: > > > > > > Stefano and Ivelin, > > > > > > I was able to use the war file you sent us -- as you suggested in > > > the following quote -- to investigate the problems with XSLTC. > > > > > > > Since many bugs that I find in xsltc aren't simply > reproducible by > > > > running the scripts from command line, I prepared a WAR > file with > > > > a prebuild Cocoon that uses Xalan XSLTC as the XSLT > processor for > > > > some parts of it. > > > > > > > > 1) the /status page > > > > 2) the /documentation/* pages > > > > > > > > You can find the WAR package here: > > > > > > > > > > > > > http://www.apache.org/~stefano/dist/cocoon_with_xsltc-20020420.war > > > > > > > > To install it on your servlet container of choice follow the > > > > instructions at: > > > > > > Note, I replaced the version of the XSLTC jar in the war > file with > > > the latest version of xsltc.jar. > > > > > > When I click on the documentation link, the following error is > > > thrown > > > > > > java.lang.VerifyError: (class: book2menu, method: > applyTemplates > signature: > > > > (Lorg/apache/xalan/xsltc/DOM;Lorg/apache/xalan/xsltc/NodeItera > tor;Lorg/apach > e/xalan/xsltc/TransletOutputHandler;)V) > > > Unable to pop operand off an empty stack > > > at java.lang.Class.newInstance0(Native Method) > > > at java.lang.Class.newInstance(Class.java:232) > > > at > org.apache.xalan.xsltc.trax.TemplatesImpl.getTransletInstance( > TemplatesImpl. > java:234) > > > at > org.apache.xalan.xsltc.trax.TemplatesImpl.newTransformer(Templ > atesImpl.java: > 259) > > > at > org.apache.xalan.xsltc.trax.TransformerFactoryImpl.newTransfor > merHandler(Tra > nsformerFactoryImpl.java:588) > > > at > org.apache.cocoon.components.xslt.XSLTProcessorImpl.getTransfo > rmerHandler(XS > LTProcessorImpl.java:241) > > > at > org.apache.cocoon.transformation.TraxTransformer.setup(TraxTra > nsformer.java: > 306) > > > > > > Looking at book2menu.xsl, there was an error the > stylesheet. It had > > > > > > <xsl:stylesheet > xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; > > > xmlns:NetUtils="org.apache.cocoon.util.NetUtils" > > > > > > but the url for the external java function should be > > > > > > > xmlns:NetUtils="http://xml.apache.org/xslt/java/org.apache.coc > oon.util.NetUt > ils" > > > > > > XSLTC couldn't compile the stylesheet because of this > syntax error. > > > > > > After correcting the stylesheet, XSLTC still has a problem with > > > > > > <xsl:variable name="encLabel" > select="NetUtils:encodePath(@label)"/> > > > > > > because @label is of type nodeset and NetUtils.java > expects a string > > > as > show in the snippet below > > > > > > * @param path the path to encode > > > * @return the encoded path > > > */ > > > public static String encodePath(String path) { > > > > > > So you need to cast the @label nodest to a string, e.g., > > > > > > <xsl:variable name="encLabel" > select="NetUtils:encodePath(string(@label))"/> > > > > > > It doesn't look like encLabel is even used. > > > > > > I'll see what happens next after changing book2menu to > get past this > problem. > > > Just wanted to let you know that we are working on it. > > > > > > -- > > > Tom Amiro -- SQA Engineer > > > Sun XML Technology Development > > > voice: 781-442-0589 Fax: 781-442-1437 > > > eMail: tom.amiro@.sun.com > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, email: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
