// compare the size of the JDom Object and the DOM Object.

import java.io.*;
import org.jdom.*;
import org.jdom.input.*;
import org.jdom.output.*;

public class Compare
{
    public Compare()
    {
        System.out.println("inside compare");        
    }
    
    public static void main(String args[])
    {
        Compare comp = new Compare();
        if (args.length > 0)
        {
            String fileName = args[0];
            System.out.println("Xml file to be parsed : " + fileName);                    
            
            int i = (new Integer(args[1])).intValue();
            if (i == 1)
            {
				primeDom();
                comp.buildDom(fileName);
            }
            
            if (i == 2)
            {
				primeJDom();
                comp.buildJDom(fileName);
            }
        }
    }
    
    public void buildDom(String f)
    {
        
        try
        {
            System.out.println("inside build Dom");
            long start = System.currentTimeMillis();
            
            // dom parsing code here 
            org.apache.xerces.parsers.DOMParser parser = new org.apache.xerces.parsers.DOMParser();
            //parser.setFeature("http://apache.org/xml/features/dom/defer-node-expansion", true);
            //parser.setFeature("http://apache.org/xml/features/continue-after-fatal-error", true);
            //Errors errors = new Errors();
            //parser.setErrorHandler(errors);
            parser.parse(f);
            org.w3c.dom.Document document = parser.getDocument();            
            // end parsing code 
            
            long end = System.currentTimeMillis();
            System.out.println("Time taken to build Dom: " + (end - start));
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }       
    }
    
    public void buildJDom(String f)
    {
        System.out.println("inside build JDom");
        try
        {
            long start = System.currentTimeMillis();
            SAXBuilder builder = new SAXBuilder();
            org.jdom.Document doc = builder.build(new File(f));
            long end = System.currentTimeMillis();
            System.out.println("Time taken to build JDom: " + (end - start));
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }       
    }

/**
 * primeDOM 
 */
public static void primeDom() {
	
	String sdoc = "<?xml version=\"1.0\" ?><root><child /></root>";
	//just run a xerces parse to "prime" the system
	try {
		org.apache.xerces.parsers.DOMParser parser = new org.apache.xerces.parsers.DOMParser();

    	parser.parse(new org.xml.sax.InputSource(new StringReader(sdoc)));
	
	} catch (Exception e) {
		e.printStackTrace(System.err);
		System.exit(1);
	}
}
/**
 * prime JDOM 
 */
public static void primeJDom() {
	
	String sdoc = "<?xml version=\"1.0\" ?><root><child /></root>";
	//just run a xerces parse to "prime" the system
	try {

		SAXBuilder builder = new SAXBuilder();
    	org.jdom.Document doc = builder.build(new StringReader(sdoc));
	} catch (Exception e) {
		e.printStackTrace(System.err);
		System.exit(1);
	}
	
}

}