https://issues.apache.org/bugzilla/show_bug.cgi?id=43294
--- Comment #5 from Philippe Mouawad <p.moua...@ubik-ingenierie.com> 2011-09-20
07:15:00 UTC ---
Hello,
I tested quickly this approach by replacing current code of
XPathExtractor#getValuesForXPath by this code:
----------------------------------------------------------------------
private void getValuesForXPath(Document d,String query, List<String>
matchStrings)
throws TransformerException, XPathExpressionException {
String val = null;
final PrefixResolver resolver = new PrefixResolverDefault(d
.getDocumentElement());
NamespaceContext ctx = new NamespaceContext() {
public String getNamespaceURI(String prefix) {
String uri= null;
// HARD CODED PREFIX THAT WOULD BE REPLACED BY TABLE INPUT OF USER
if (prefix.equals("ns"))
return "http://biz.aol.com/schema/2006-12-18";;
else
return resolver.getNamespaceForPrefix(prefix);
}
// Dummy implementation - not used!
public Iterator getPrefixes(String val) {
return null;
}
// Dummy implemenation - not used!
public String getPrefix(String uri) {
return null;
}
};
XPathFactory xpathFact = XPathFactory.newInstance();
XPath xpath = xpathFact.newXPath();
xpath.setNamespaceContext(ctx);
XPathExpression expr = xpath.compile(query);
NodeList nodeList = (NodeList) expr.evaluate(d,
XPathConstants.NODESET);
int length = nodeList.getLength();
for (int i = 0 ; i < length; i++) {
Node match = nodeList.item(i);
if ( match instanceof Element){
if (getFragment()){
val = getValueForNode(match);
} else {
// elements have empty nodeValue, but we are usually
interested in their content
final Node firstChild = match.getFirstChild();
if (firstChild != null) {
val = firstChild.getNodeValue();
} else {
val = match.getNodeValue(); // TODO is this correct?
}
}
} else {
val = match.getNodeValue();
}
matchStrings.add(val);
}
}
---------------------------------------------------------------------------
And it works.
Do you agree with it ?
If so what would be the best :
- Adding a table to input prefix=full namespace values to XPath Extractor ?
- Adding a table to input prefix=full namespace values to XPath Extractor
Config element ?
Thank you for your answers.
Regards
Philippe Mouawad
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