What I actually want to do is the following:- 1. Validate the original XML. 2. Transform the XML. 3. Use the resulting nodes in the application - I don't want to send the results to a stream.
Is there a useage pattern for this? Thanks -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: 30 April 2003 16:51 To: xalan-c-users@xml.apache.org Subject: RE: problem with XSLT tranformation using Xalan Hi Michael, Please download Xalan-C++ 1.5. It has support for the new Xerces DOM. The old DOM is now deprecated because the performance of the new DOM is much better. Just to re-iterate here -- it looks like you're using the Xerces DOM for the sake of using it, not because you need to. Make sure that between the time you parse the document, and the time you do the transformation, that you're actually going to modify the DOM instance in some way. Otherwise, you are much better off just letting Xalan parse the document. Dave "Michael Hughes" <michael.hughes@ To: <xalan-c-users@xml.apache.org> gf-x.com> cc: (bcc: David N Bertoni/Cambridge/IBM) Subject: RE: problem with XSLT tranformation using Xalan 04/30/2003 07:41 AM Please correct me if I'm wrong, but the useage pattern you referred to is the following... #include <parsers/DOMParser.hpp> #include <XalanTransformer/XercesDOMWrapperParsedSource.hpp> void parseWithXerces(XalanTransformer &xalan, const XSLTInputSource &xmlInput, const XalanCompiledStylesheet* styleSheer, const XSLTResultTarget &output, XMLFileReporter &logFile) { XercesDOMParser theParser; // Turn on validatiion and namespace support. theParser.setDoValidation(true); theParser.setDoNamespaces(true); // Parse the document theParser.parse(xmlInput); DOMDocument *theDOM = theParser.getDocument(); theDOM->normalize(); XercesDOMSupport theDOMSupport; XercesParserLiaison theParserLiaison; // Use the DOM to create a XercesDOMWrapperParsedSource, // which you can pass to the transform method. try { const XercesDOMWrapperParsedSource parsedSource( theDOM, theParserLiaison, theDOMSupport, XalanDOMString(xmlInput.getSystemId())); xalan.transform(parsedSource, stylesheet, output); } catch (....) { ... } } XercesDOMWrapperParsedSource's first argument in its constructor is 'const DOM_Document &' (which is deprecated) whereas the XercesDOMParser::getDocument() returns 'DOMDocument *'. Now obviously you could just use the deprecated DOMParser instead of XercesDOMParser, but is that dangerous? Why is it deprecated? Thanks in advance for your help. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: 22 April 2003 17:07 To: xalan-c-users@xml.apache.org Subject: Re: problem with XSLT tranformation using Xalan Please make sure you respond to the list, not to my personal address. Since XalanDocument is an abstract base class, saying your "requirement is to transform a document of type XalanDocument*" is not really meaningful. If you have already parsed a document with the Xerces parser, and you want to transform that, then following the link to the usage pattern I pointed out, or look at the sample application I mentioned. Using the Xerces DOM for transformations, if there is no need, is a waste of processing cycles, as it's not terribly efficient. The XalanNode* constructor for XSLTInputSource will be deprecated and disappear in future release -- that's the reason for the wrapper class. Dave Ashay <[EMAIL PROTECTED] To: [EMAIL PROTECTED] .com> cc: Subject: Re: problem with XSLT tranformation using Xalan 04/22/2003 08:50 AM Hi David, I tried out the tranformation of an xml file the same way you've stated below and it worked fine. But my requirement is to transform a document of type XalanDocument* . An XSLTInputSource object can be created with a XalanDocument object which can then be passed to the transform() method. But this does not seem to be working and gives me the error that I mentioned. Any ideas what could be causing this error or what I might be missing in my code. [EMAIL PROTECTED] wrote: Unless you really need to use the Xerces DOM, you should avoid it. Here's a much simpler version without it: XalanTranformer::intialize(); { XalanTransformer theTransformer; int theResult = theTransformer.transform("foo.xml","foo.xsl","foo.out"); cout << "theResult is: " << theResult ; } XalanTransformer::terminate(); If you really need to use the Xerces DOM, see the ParsedSourceWrappers sample, or this usage pattern: http://xml.apache.org/xalan-c/usagepatterns.html#xercesdomwrapperparseds ource Dave Ashay .com> cc: (bcc: David N Bertoni/Cambridge/IBM) Subject: problem with XSLT tranformation using Xalan 04/22/2003 04:32 AM Hi, I am very new to Xerces and Xalan. I am using Xerces 2.1.! 0 and Xalan 1.4.0. Based on one of the examples given on the Apache site, I wrote the below given simple code and got the following error message while transforming a XalanDocument. I am getting -2 as a result of XalanTransformer::tranform() method. Error msg: Fatal Error at (file , line 0, column 0): An exception occurred! Type:RuntimeException, Message:The primary document entity could not be opened. Id={null} theResult = -2 Could someone give me pointers as to why this error is caused. A speedy reply would be highly appreciated. Thanks in advance. The code: ************************************************************************ ** // Use the Xerces DOM parser to create a DOM_Document. #include #include DOMParser theParser; // You MUST instruct the Xerces DOMParser NOT to create a DOM_XMLDecNode // in the DOM to represent the XML declaration. See! "Limitations" below. DOMParser::setToCreateXMLDeclTypeNode(false); theParser.parse("foo.xml"); const DOM_Document theDOM = theParser.getDocument(); // Set up a XercesParserLiaison and use it to wrap the DOM_Document // in a XalanDocument. XercesDOMSupport theDOMSupport; XercesParserLiaison theParserLiaison(theDOMSupport); XalanDocument* theDoc = theParserLiaison.createDocument(theDOM); // Use the XalanDocument to create an XSLTInputSource object, which // you can then use in a transformation. XSLTInputSource theInputSource(theDoc); XSLTInputSource theXSLInput("foo.xsl"); XSLTResultTarget theOutput("foo.out"); XalanTranformer::intialize(); XalanTransformer theTransformer int theResult = theTransformer.transform(theInputSource,theXSLInput,theOutput); cout << "theresult is: " << theResult ; ************************************************************************ **** Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo. Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo.
