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[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: My first try at XSL..can someone give me a few poi
 My co-worker just bought the book from Kay, and I will purchase that one as well, and the other. Thanks for the pointers. You said the code looks alright..the 4 lines of TrAX API calls being made look correct? Do you have perhaps a snippet that you know would work that I could look at? By chance do you know what sort of performance hit will be taken when using XSLT compared to just a JSP page returned dynamcially? Is it 2x as long for a page to be returned, 4x, or only say..1.5x? I am trying to gauge what sort of performance can be expected compared to using just JSP. I eventually want to return WML, PDF and RTF, but I don't want to see a major slowdown in our site when using this technology. Thanks. > -----Original Message----- > From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx > [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx]On Behalf Of Max Dunn > Sent: Sunday, January 07, 2001 4:02 PM > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx > Subject: RE: My first try at XSL..can someone give me a few > pointers? > > > Michael Kay's XSLT Programmer's reference is pretty much a > required text for > XSL programmers, and does explain the full syntax of XSLT and XPATH. > Another good book that covers XSLFO as well as XSLT is the XSL > Companion by > Neil Bradley. Also see the list of online XSL resources at > http://www.siliconpublishing.org/XSL.asp > > It would appear that your XML/XSL is OK, it is probably not being passed > into the program correctly. > > Max > > -----Original Message----- > From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx > [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx]On Behalf Of Kevin Duffey > Sent: Sunday, January 07, 2001 3:18 PM > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx > Subject: My first try at XSL..can someone give me a few pointers? > > > Hi there, > > Just joined this list in hopes to figure out a few things. > First..what is a > recommended XSL book? I see a few that are coming out soon, but is there a > good one right now that explains the full syntax of XSL and XPATH? Also, > being that I am using Xalan (the latest build as of three days ago), it > supports something called TrAX, which I am trying to use to > convert..it is a > Java API or something and right now I seem to be using only 4 > lines of code. > I pass in two StreamSources, one of which is XML, and the other > of which is > XSL. I don't know if how I am doing this is correct or not, but here is a > very basic XML file I have, and the XSL I am using to convert it > to HTML. If > someone could just let me know if this should work or not that would be > great. I keep getting an error saying the XML file needs to have a root > element, and I am not sure what it is saying. > > XML: > > <?xml version="1.0" encoding="ISO-8859-1"?> > <OrderBuilder> > <Name>HELLO</Name> > </OrderBuilder> > > > XSL: > > <?xml version="1.0"?> > <xsl:stylesheet version="1.0" > xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> > <xsl:output method="html"/> > > <xsl:template match="OrderBuilder"> > <html> > <body> > <xsl:apply-templates/> > </body> > </html> > </xsl:template> > > <xsl:template match="Name"> > <xsl:apply-templates/> > </xsl:template> > > </xsl:stylesheet> > > > Lastly, what I am trying to do is something like the cocoon project, but > much smaller in size. I have a working, very simple mvc framework using a > singel controller servlet and a few other helper classes. It is similar to > Struts, but much smaller in size and a little bit different. I added an > xslControllerServlet, which instead of forwarding to a JSP page, it grabs > the output of the JSP page (which results in XML well-formed..I > think), and > applies an XSL to it, to transform it. Here is the last bit of code, but I > can supply the whole thing if necessary. I don't want anyone to > do the whole > thing for me..I just want to know if what I read from the XSL stuff online > if what I am doing should work, or am I way off the mark here. From what I > gathered, the TrAX api is supposed to make the process very simple..simply > supply the xml stream and xsl stream, and the result is put in the output > stream you supply. Here is the code snippet. > > String urlPrefix = "http://localhost/"; > URL url = new URL(urlPrefix + "xsl/demo.jsp"); > HttpURLConnection urlConnection = (HttpURLConnection) > url.openConnection(); > InputStream is = urlConnection.getInputStream(); > xmlStream = new StreamSource(is); > TransformerFactory tFactory = TransformerFactory.newInstance(); > Transformer transformer = tFactory.newTransformer(xslStream); > transformer.transform(xmlStream, new > StreamResult(response.getOutputStream())); > > That above is the portion that grabs the JSP page output (as if a web > browser accessed it so that I can dynamically create the XML output it > returns), and then calls the TrAX api transform() method with the > xmlStream > and uses the HttpServletResponse outputstream for the output. > > I set the response.setContentType() to the xsl output (which in my case > right now..is always HTML). I should ask..do I need to do a > response.flush() > call or anything..or should the above work and send the transformed output > to the browser that requested the initial page? > > > Thanks for any help. While not a big deal..if anyone would like my simple > mvc framework with source, I am happy to give it out. A few things it > does..much like Struts, is supports auto-bean population, a single xml > config file mapping for all actions (and multiple forwards per > action, each > forward having the ability to specify an XSL page to use to transform it; > the auto-population actually works on nested objects, so that if > you have a > JavaBean with an object in it as a field, you can auto-populate > that object > (and nested objects, etc), which allows you to use "pass-through" > abilities > (ask for more details if you would like). It also uses reflection > to make it > very easy to know what action method is being called on any page (or any > button that submits a form or any href link). > > Anyways..thanks for any help. > > > > > 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 
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