/* Copyright 2002-2004 Elliotte Rusty Harold
This library is free software; you can redistribute it and/or modify
it under the terms of version 2.1 of the GNU Lesser General Public
License as published by the Free Software Foundation.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330,
Boston, MA 02111-1307 USA
You can contact Elliotte Rusty Harold by sending e-mail to
[email protected]. Please include the word "XOM" in the
subject line. The XOM home page is located at http://www.xom.nu/
*/
package nu.xom.samples;
import java.io.IOException;
import nu.xom.Builder;
import nu.xom.Document;
import nu.xom.Element;
import nu.xom.Node;
import nu.xom.ParsingException;
/**
*
* <p>
* Demonstrates recursive descent through a document
* using the <code>Node</code> class.
* </p>
*
* @author Elliotte Rusty Harold
* @version 1.0
*
*/
public class NodeLister {
public static void main(String[] args) {
if (args.length == 0) {
System.out.println("Usage: java nu.xom.samples.NodeLister URL");
return;
}
Builder builder = new Builder();
try {
Document doc = builder.build(args[0]);
Element root = doc.getRootElement();
listChildren(root, 0);
}
// indicates a well-formedness error
catch (ParsingException ex) {
System.out.println(args[0] + " is not well-formed.");
System.out.println(ex.getMessage());
}
catch (IOException ex) {
System.out.println(ex);
}
}
public static void listChildren(Node current, int depth) {
printSpaces(depth);
String name = "";
if (current instanceof Element) {
Element temp = (Element) current;
name = ": " + temp.getQualifiedName();
}
System.out.println(current.getClass().getName() + name);
for (int i = 0; i < current.getChildCount(); i++) {
listChildren(current.getChild(i), depth+1);
}
}
private static void printSpaces(int n) {
for (int i = 0; i < n; i++) {
System.out.print(' ');
}
}
}
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