SAX Sample Application

import java.io.FileReader;

import org.xml.sax.XMLReader;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.helpers.XMLReaderFactory;
import org.xml.sax.helpers.DefaultHandler;

/** Our handler must extend DefaultHandler */
public class MySAXApp extends DefaultHandler
{

  public static void main (String args[])
    throws Exception
  {
    //Create an instance of the XML parser.
    XMLReader xr = XMLReaderFactory.createXMLReader();

    //Create an instance of our handles (see below)
    MySAXApp handler = new MySAXApp();
    xr.setContentHandler(handler);
    xr.setErrorHandler(handler); //does double duty.

    // Parse each *file* provided on the
    // command line.
    for (int i = 0; i < args.length; i++) {
      FileReader r = new FileReader(args[i]);
      xr.parse(new InputSource(r));
    }
  }

  public MySAXApp ()
  {
    super();
  }


  ////////////////////////////////////////////////////////////////////
  // Event handlers.
  ////////////////////////////////////////////////////////////////////


  public void startDocument ()
  {
    System.out.println("Start document");
  }


  public void endDocument ()
  {
    System.out.println("End document");
  }

  /**
   * Receive notification at the beginning of an element.
   *
   * @param uri The Namespace URI, or the empty string if the element
     has no Namespace URI or if Namespace processing is not being
     performed.
   * @param name The local name (without prefix), or the empty string
     if Namespace processing is not being performed.
   * @param qName The qualified name (with prefix), or the empty
     string if qualified names are not available.[namespaceprefix:name]
   * @param atts The attributes attached to the element. If there are
     no attributes, it shall be an empty Attributes object.
   */
  public void startElement (String uri, String name,
                            String qName, Attributes atts)
  {
    if ("".equals (uri))
      System.out.println("Start element: " + qName);
    else
      System.out.println("Start element: {" + uri + "}" + name);
  }


  public void endElement (String uri, String name, String qName)
  {
    if ("".equals (uri))
      System.out.println("End element: " + qName);
    else
      System.out.println("End element:   {" + uri + "}" + name);
  }

  /**
   * Receive notification of character data.
   *
   * @param ch[] The characters from the XML document.
   * @param start The start position in the array.
   * @param length The number of characters to read from the array
   */
  public void characters (char ch[], int start, int length)
  {
    System.out.print("Characters:    \"");
    for (int i = start; i < start + length; i++) {
      switch (ch[i]) {
      case '\\':
        System.out.print("\\\\");
        break;
      case '"':
        System.out.print("\\\"");
        break;
      case '\n':
        System.out.print("\\n");
        break;
      case '\r':
        System.out.print("\\r");
        break;
      case '\t':
        System.out.print("\\t");
        break;
      default:
        System.out.print(ch[i]);
        break;
      }
    }
    System.out.print("\"\n");
  }

}