On Mon, 2008-09-22 at 21:44 +0530, Saliya Ekanayake wrote:
> Hi Salu
hehe, it is Thorsten.
The "salu2" stands for "saludos" which is Spanish for greetings. ;)
>
> Could you please post the rootPath string, which you use to create the names
> of the elements?
That can variate from one format to the other. However in html out put
that mostly likely will be just one
String rootPath="/html";
> Additionally according to your XPath the "body" element
> should be the first element of the root element.
Yes.
> So please debug and see if
> that's the first element present in your OM tree.
Yeah, it is.
firstChild OMElementImpl (id=113)
attributes null
builder null
done true
factory OMLinkedListImplFactory (id=80)
firstChild null
lastChild null
lineNumber 0
localName "body" (id=120)
namespaces null
nextSibling null
nodeType 0
noPrefixNamespaceCounter 0
ns null
parent OMElementImpl (id=93)
previousSibling null
>
> Just FYI, you can write much more clean code to accomplish your task.
My ears are width open. :)
> If you
> post or explain the structure of the rootPath string I will be able to
> provide you with a much better code sample to suit your work.
The rootPath can be any string that is the common denominator for all
paths of a structurer [http://markmail.org/message/mwg5le6slrikjyak].
In html it is the root element "html" in fo it will be "fo:root". ...
but it could be basically everything like "html/body" if no injection to
"html/head" are made. The rootPath is the longest common path for all
injections.
I wonder - reading your other answers - whether AXIOMXPath is only
working with OM's that a builder has generated (parsing a file) and not
like I do an OMElement that I created from the factory (without parsing
a file), hence builder = null.
Thanks for your feedback Saliya.
salu2
>
> Thanks,
> Saliya
>
> On Mon, Sep 22, 2008 at 6:24 PM, Thorsten Scherler <
> [EMAIL PROTECTED]> wrote:
>
> > Hi all,
> >
> > having following code I always get null which I do not understand:
> > OMFactory factory = OMAbstractFactory.getOMFactory();
> > StAXOMBuilder builder = new StAXOMBuilder();
> > ...
> > String[] tokenizer = rootPath.split("/");
> > // create all nodes that are in the root path
> > LinkedHashSet<OMElement> path = new LinkedHashSet<OMElement>();
> > int i = 0;
> > for (String pathPart : tokenizer) {
> > if (!pathPart.equals("")) {
> > OMElement element = factory.createOMElement(pathPart, null);
> > path.add(element);
> > }
> > }
> > // now we have all nodes created but with no hierarchy
> > OMElement[] elements = new OMElement[0];
> > elements= path.toArray(new OMElement[path.size()]);
> > // create the hierarchy by adding the last node to the
> > // previous one till we reached the first one.
> > for (int j = elements.length-1; j > 0; j--) {
> > elements[j-1].addChild(elements[j]);
> > }
> > // Get rid of the overhead and expose just one node
> > OMElement root = elements[0];
> > ...
> > AXIOMXPath xpath = new AXIOMXPath("/html/body");
> > OMElement injectionPoint = (OMElement)xpath.selectSingleNode(root);
> > ...
> >
> > When I debug the code I get for root:
> > root OMElementImpl (id=61)
> > attributes null
> > builder null
> > done true
> > factory OMLinkedListImplFactory (id=50)
> > firstChild OMElementImpl (id=80)
> > lastChild OMElementImpl (id=80)
> > lineNumber 0
> > localName "html" (id=84)
> > namespaces null
> > nextSibling null
> > nodeType 0
> > noPrefixNamespaceCounter 0
> > ns null
> > parent null
> > previousSibling null
> >
> > but then for xpath.selectSingleNode(root) it always returns null.
> >
> > I am doing obvious something wrong, but I am not sure what. Is there
> > some obvious problem?
> >
> > salu2
> > --
> > Thorsten Scherler thorsten.at.apache.org
> > Open Source Java consulting, training and solutions
> >
> >
>
>
--
Thorsten Scherler thorsten.at.apache.org
Open Source Java consulting, training and solutions
