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Xerces and Saxon incompatible wrt namespaces
Added by Anonymous almost 20 years ago
Legacy ID: #2883134
Legacy Poster: sid (siddharth_c)
hi When I build a saxon document and import the documentElement in a xerces Document
I lose all the namespace declarations. Is this a known issue or a known bug or am i
doing something wrong(which i think is the most likely option)? Unfortuantely due to
xalans lack of proper support for xpath extension functions I have to mix Saxon and
Xerces in my current SOAP project. I am posting my test case for your analysis Any light
you can shed on this issue or point me to a possible workaround for this would be
greatly appreciated. -thanks Siddharth Test Case public static void testSoap(){ try{
System.setProperty(
"javax.xml.parsers.DocumentBuilderFactory","net.sf.saxon.om.DocumentBuilderFactoryImpl");
// set Saxon Doc DocumentBuilderFactory dbFactory= DocumentBuilderFactory.newInstance();
dbFactory.setNamespaceAware(true); DocumentBuilder builder =
dbFactory.newDocumentBuilder(); Document document =
builder.parse("file:///c:\temp\test.xml"); System.setProperty(
"javax.xml.parsers.DocumentBuilderFactory","org.apache.xerces.jaxp.DocumentBuilderFactoryImpl");
dbFactory= DocumentBuilderFactory.newInstance(); dbFactory.setNamespaceAware(true);
builder = dbFactory.newDocumentBuilder(); Document document2 = builder.newDocument();
document2.appendChild(document2.importNode(document.getDocumentElement(),true));
System.out.println("Saxon Doc : ");
printDocument(document,System.out,true); System.out.println("\nXerces Doc :
"); printDocument(document2,System.out,true); }catch(Exception ex){
ex.printStackTrace(); } } Test.xml <m:GetLastTradePrice
xmlns:m="http://wombat.ztrade.com"> <n:symbol
xmlns:n="http://wombat.ztrade.com">SUNW</n:symbol>
</m:GetLastTradePrice> Output from the program : <?xml
version="1.0" encoding="UTF-8"?>
<m:GetLastTradePrice xmlns:m="http://wombat.ztrade.com">
<n:symbol
xmlns:n="http://wombat.ztrade.com">SUNW</n:symbol>
</m:GetLastTradePrice> Xerces Doc : <?xml
version="1.0" encoding="UTF-8"?>
<m:GetLastTradePrice>
<n:symbol>SUNW</n:symbol>
</m:GetLastTradePrice>
Legacy ID: #2883198
Legacy Poster: Michael Kay (mhkay)
It looks as if Xerces is calling the DOM interfaces supplied by Saxon in some way
that Saxon doesn't expect. This isn't greatly surprising because the way DOM handles
namespaces is pretty bizarre, there are so many permutations possible, and it's always
quite difficult to get the same result out of two different DOM implementations. I'll
try to get a trace on what interfaces Xerces is calling to see if the situation can be
fixed. Michael Kay
Legacy ID: #2884324
Legacy Poster: sid (siddharth_c)
I found a thread on the xerces-j-user mailing list which was reporting a similar
problem. That does not talk about saxon though. But the essence of the problem is the
same. Unfortuantely the post went unanswered. FYI....and to help you debug
http://marc.theaimsgroup.com/?l=xerces-j-user&m=106730648807514&w=4
-thanks for ur help Siddharth
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