Hi Dave,
Thanks for the response, It helped me to proceed one step further.
I searched in the mailing list to understand few more things.
Now I am facing a new problem , the mapNode always returns some hexadecimal value. Should I use some data type conversion ?
Input
<MAIN>
<Name>
<Skill>Praveen</Skill>
<Level>0000</Level>
</Name>
<Name1>
<Skill>Prashanth</Skill>
<Level>1111</Level>
</Name1>
<Name2>
<Skill>Jaya</Skill>
<Level>2222</Level>
</Name2>
<Name3>
<Skill>Asha</Skill>
<Level>3333</Level>
</Name3>
</MAIN>
Xpath given is = /MAIN/Name/Level
Here is code snippet
const DOMDocument* Domdoc = theLiaisonPtr->mapToXercesDocument(theDocumentPtr);
XalanDocument *Xalandoc = theLiaisonPtr->createDocument(Domdoc,false,true);
if ( Xalandoc == NULL ) {
cerr << "Xalandoc doc is NULL" << endl;
exit(1);
}
XalanNode * root_context_node = Xalandoc;
XalanElement *namespace_node =Xalandoc->getDocumentElement();
const XalanDOMString _expression_(inXPath.data());
XPathEvaluator evaluator;
XalanNode* found = evaluator.selectSingleNode(
(*theDOMSupportPtr),
root_context_node,
_expression_.c_str(),
namespace_node);
if (found) {
XercesDocumentWrapper *xerces_document_wrapper =
theLiaisonPtr->mapDocumentToWrapper(Xalandoc);
const DOMNode * target =(const DOMNode *) xerces_document_wrapper->mapNode(found);
cout << "Node Name = " << target->getNodeName() << endl;
cout << "Node Value = " << target->getNodeValue() << endl;
cout << "Node URI = " << target->getNamespaceURI() << endl;
cout << "Node Prefix = " << target->getPrefix() << endl;
cout << "Node LocalName = " << target->getLocalName() << endl;
cout << "Node Type = " << target->getNodeType() << endl;
}
The output I get is
Node Name = 3a865c
Node Value = 0
Node URI = 0
Node Prefix = 0
Node LocalName = 0
Node Type = 1
Please do help me, my ultimate target is to add new node to the "found" XalanNode.
Please hint me how to do these ?
1. How to add a new Node to "found" XalanNode ? I searched in all the mailing list without success.
2. How to rebuild the Wrapper after modification ?
Thanks
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Monday, May 16, 2005 10:36 PM
To: [email protected]
Subject: Re: Convert Xalan Document to Xerces
> XercesDOMSupport domSupport;
> XercesParserLiaison parserLiaison(domSupport);
> const DOMDocument* Domdoc =
parserLiaison.mapToXercesDocument(theDocument);
> if ( Domdoc == NULL ) {
> cerr << "Domdoc is NULL" << endl; }
It looks like you've create a XercesParserLiaison instance in order to recover the underlying Xerces DOMDocument from an instance you've created with XalanSourceTreeParserLiaison. Since there is no underlying DOMDocument, it's not surprising it returns a null pointer.
If you really want to work the Xerces-C DOM, then use a XercesParserLiaison instance instead of a XalanSourceTreeParserLiaison.
However, you should be aware that performance will suffer. If you intend to modify the DOMDocument and use it again with Xalan-C, you must start with a Xerces DOMDocument and use the XercesParserLiaison to wrap it for use with Xalan-C. There is some information regarding this in the documentation, and you can search the mail archive for more information.
Dave
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