Extracting elements from an xml string - org.apache.xerces.dom.DeferredText

Question

Hello all,
I am new to xml, and I thought I had a handle on things until I got this problem...I am getting an xml string from the body of an e-mail message, and then I am trying to extract elements out of it. Here is an example xml string:
<?xml version="1.0" encoding="UTF-8"?>
<filterRoot>
   <filter action="MOVE" bool="AND" name="My Saved Filter" target="Deleted Items">
      <condition attribute="TO" bool="AND" contains="CONTAINS">
         <value>[email protected]</value>
         <value>[email protected]</value>
         <value>[email protected]</value>
         <value>[email protected]</value>
         <value>[email protected]</value>
      </condition>
   </filter>
</filterRoot>I am trying to extract the <filter> element out and store it into a Vector of Elements (called, not surprisingly, filters). However, I am getting a class cast exception:
java.lang.ClassCastException: org.apache.xerces.dom.DeferredTextImplIt is being called from where I trying to extract the <filter> in this way:
        filterRoot = doc.getDocumentElement(); // get topmost element
        NodeList list = filterRoot.getChildNodes();
        Vector newFilters = new Vector();
        debug("There are "+list.getLength()+" filters in document");
        for(int i=0; i<list.getLength(); i++) {
            Node n = list.item(i);
            debug("Node "+i+" getNodeValue() is "+n.getNodeValue());
            Element temp = (Element)n;
            newFilters.add(temp);
        }Perhaps my question is, how do I correctly get hold of the <filter> node so that I may cast it as an Element?
thanks,
Riz

Answer 1

Yes, I already knew that it is not a bug.
But, I got next step problem.
I put "false" to "include-ignorable-whitespace" feature in xerces parser.
But, I still found unnecessary TextNodes in my parser object.
Feature link : http://xerces.apache.org/xerces-j/features.html.
I use xerces-2_8_0.
DOMParser parser = new DOMParser();
parser.setFeature("http://apache.org/xml/features/dom/include-ignorable-whitespace", false);
parser.parse(inputSource);
document = ps.getDocument();
System.out.println(document.getDocumentElement().getChildNodes().length()); // still wrong lengthIs tehre any example of usage this feature?
What is default defination of white-space "\n "(enter with one space) or " "(juz white space) or something else?
Thanks,