How to read/interpret data in xml files

Question

Hi,
I am trying to write a program using DOM to read an xml file - that doesn't have a dtd. My aim is to get the node names and the content enclosed in the node. The xml I have is something like:
<ARTICLE>
<TITLE>
</TITLE>
<DESCRIPTION>
</DESCRIPTION>
<SYNOPSIS>
</SYNOPSIS>
<SOURCE>
<FOOT>
</FOOT>
</SOURCE>
<PARA>
</PARA>
<PARA>
</PARA>
<PARA>
</PARA>
</ARTICLE>
My java code thus far is:
public class Word2dmt {
String fileExt = "";
int fileNameLength = 0;
public void Word2dmt(){
// Default constructor
public void processFiles(){
String fileName = "";
String filePath = "/MyProjects/FOP/word2dmt/";
String[] files = null;
File dirWhereXmlFilesAre = null;
Document document;
DocumentBuilder builder = null;
try {
dirWhereXmlFilesAre = new File(filePath);
files = dirWhereXmlFilesAre.list();
} catch (IllegalArgumentException iae) {
Log.message("Caught iae: " + iae.getMessage());
DocumentBuilderFactory factory =
DocumentBuilderFactory.newInstance();
// factory.setValidating(true);
// factory.setNamespaceAware(true);
try{
builder = factory.newDocumentBuilder();
} catch (ParserConfigurationException pce) {
// Parser with specified options can't be built
pce.printStackTrace();
for (int z = 0; z < files.length; z++){
fileName = filePath + files[z];
fileNameLength = fileName.length();
fileExt = fileName.substring(fileName.indexOf(".") + 1,
fileNameLength);
if(fileExt.equalsIgnoreCase("xml")){
try {
document = builder.parse(new File(fileName));
if(document.hasChildNodes()){
NodeList nodes = document.getChildNodes();
processNodes(nodes);
} catch (SAXParseException spe) {
// Error generated by the parser
System.out.println("\n** Parsing error" + ", line " +
} catch (SAXException sxe) {
// Error generated during parsing)
} catch (FileNotFoundException fnf) {
Log.message("The file: " + fileName + " is not found");
} catch (IOException e) {
Log.message("IOexception: " + e.getMessage());
} // Ends the main for loop on the files
public static void main(String[] args) {
Word2dmt w2dmt = new Word2dmt();
w2dmt.processFiles();
} // end main()
public void processNodes(NodeList nodes){
Node thisNode = null;
NamedNodeMap nodeMap = null;
Element curElement = null;
int numNodes = nodes.getLength();
String nodeValue = "";
String nodeName = "";
String localName = "";
String prefix = "";
for(int j = 0; j < numNodes; j++){
thisNode = (Node) nodes.item(j);
if(thisNode.hasChildNodes()){
processNodes(thisNode.getChildNodes());
} else {
nodeValue = thisNode.getNodeValue();
nodeName = thisNode.getNodeName();
Log.message("\t\t" + "nodeName is: " + nodeName);
Log.message("\t\t" + "nodeValue is: " + nodeValue);
When I try to print the node name, all I get is: "#test" except for the node ARTICLE, which happens to be the root node. My requirement is that I need the node name (TITLE, SYNOPSIS, DESCRIPTION ..etc) and be able to associate the content in other areas of my larger program. I tried almost all the methods of the class org.w3c.dom.Node, but without luck.
Any help is appreciated.
Thanks.
- Sharma

Answer 1

When I try to print the node name, all I get is: "#test"I think if you look more carefully you'll see it really says "#text". That's the "name" of a text node, of which you have a lot there. Also, if a node has children then you aren't printing its name, that's why you miss most of your elements.