Tracer.java

package org.softlang.company.features.sax;

import org.xml.sax.Attributes;
import org.xml.sax.helpers.DefaultHandler;

/**
 * A parser that merely prints a trace for the XML input.
 */
public class Tracer extends DefaultHandler {
	/**
	 * Handle "start document"
	 */
	public void startDocument() {
		System.out.println("Start document");
	}

	/**
	 * Handle "end document"
	 */
	public void endDocument() {
		System.out.println("End document");
	}

	/**
	 * Handle "start element"
	 */
	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);
	}

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

	/**
	 * Handle "characters"
	 */
	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");
	}
	/*
	 * public static void main (String args[]) throws Exception { parse(new
	 * Tracer(), "Year2008.xml"); }
	 */
}