Node Reporter

import javax.xml.parsers.*;
import org.w3c.dom.*;
import org.xml.sax.*;
import java.io.*;

public class NodeReporter {

  public static void main(String[] args) {
     
    try {       
      DocumentBuilderFactory builderFactory 
       = DocumentBuilderFactory.newInstance();
      DocumentBuilder parser 
       = builderFactory.newDocumentBuilder();
      NodeReporter iterator = new NodeReporter();
        
      for (int i = 0; i < args.length; i++) {
        try {
          // Read the entire document into memory
          Document doc = parser.parse(args[i]); 
          iterator.followNode(doc);
        }
        catch (SAXException ex) {
          System.err.println(args[i] + " is not well-formed."); 
        }
        catch (IOException ex) {
          System.err.println(ex); 
        }
      }
    }
    catch (ParserConfigurationException ex) {
      System.err.println("You need to install a JAXP aware parser.");
    }
  
  } // end main

  // note use of recursion
  public void followNode(Node node) {
    
    processNode(node);
    if (node.hasChildNodes()) {
      NodeList children = node.getChildNodes();
      for (int i = 0; i < children.getLength(); i++) {
        followNode(children.item(i));
      } 
    }
    
  }

  public void processNode(Node node) {
    String name = node.getNodeName();
    String type = getTypeName(node.getNodeType());
    System.out.println("Type " + type + ": " + name);
  }
  
  public static String getTypeName(int type) {
    
    switch (type) {
      case Node.ELEMENT_NODE: 
        return "Element";
      case Node.ATTRIBUTE_NODE: 
        return "Attribute";
      case Node.TEXT_NODE: 
        return "Text";
      case Node.CDATA_SECTION_NODE: 
        return "CDATA Section";
      case Node.ENTITY_REFERENCE_NODE: 
        return "Entity Reference";
      case Node.ENTITY_NODE: 
        return "Entity";
      case Node.PROCESSING_INSTRUCTION_NODE: 
        return "Processing Instruction";
      case Node.COMMENT_NODE : 
        return "Comment";
      case Node.DOCUMENT_NODE: 
        return "Document";
      case Node.DOCUMENT_TYPE_NODE: 
        return "Document Type Declaration";
      case Node.DOCUMENT_FRAGMENT_NODE: 
        return "Document Fragment";
      case Node.NOTATION_NODE: 
        return "Notation";
      default: 
        return "Unknown Type"; 
    }
  }
}