//Author: ^-^Veerle^-^
import java.io.IOException;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.util.Calendar;
import java.text.DecimalFormat;

public class calcWriteXML
{
	
	private static final String[] strHeader = {"<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>",
										"",
										"<!DOCTYPE conversions[",
										"",
										"	<!ELEMENT conversions (convertFrom, convertTo)>",
										"		<!ELEMENT convertFrom (#PCDATA)>",
										"		<!ELEMENT convertTo (#PCDATA)>",
										"",
										"]>"};
	private static final String strRootTag = "conversions";
	private static final String strSourceTag = "convertFrom";
	private static final String strDesTag = "convertTo";
	private static final String strAttribute = " currency=\"";
	
	private static final String[] convertFrom = {"1.00", "0.6862", "0.5751"};
	private static final String[] convertTo = {"1.00", "1.4574", "1.7386"};
	private static final String[] strCurrencies = {"Pound", "Euro", "Dollar"};
	
	public static void create (String strFile) throws Exception
	{
		
		try
		{
					
			BufferedWriter createXML = new BufferedWriter(new FileWriter(strFile));
			
			for (int i = 0; i < strHeader.length; i++)
			{
				writeLine(strHeader[i], createXML);
			}
			
			createXML.newLine();
			writeLine(getTimeStamp(), createXML);
			createXML.newLine();
			writeLine("<" + strRootTag + ">", createXML);
			createXML.newLine();
			writeLine("<!-- Rates for converting the specified currency into Pound -->", createXML);
			
			for (int i = 0; i < convertFrom.length; i++)
			{
				writeLine("		<" + strSourceTag + strAttribute + strCurrencies[i] + "\">" + convertFrom[i] + "</" + strSourceTag + ">", createXML);
			}
			
			createXML.newLine();
			writeLine("<!-- Rates for converting Pound into the specified currency -->", createXML);
			
			for (int i = 0; i < convertTo.length; i++)
			{
				writeLine("		<" + strDesTag + strAttribute + strCurrencies[i] + "\">" + convertTo[i] + "</" + strDesTag + ">", createXML);
			}
			
			createXML.newLine();
			writeLine("</" + strRootTag + ">", createXML);
			
			createXML.close();
			
		}
		catch (IOException ex)
		{
			throw ex;
		}
	
	}
	
	private static void writeLine (String strLine, BufferedWriter createXML) throws IOException
	{
		
		try
		{
			
			createXML.write(strLine, 0, strLine.length());
			createXML.newLine();
			
		}
		catch (IOException ex)
		{
			throw ex;
		}
		
	}
	
	private static String getTimeStamp ()
	{
		
		Calendar calNow = Calendar.getInstance();
		DecimalFormat decFormat = new DecimalFormat("00");
		return "<!-- Last updated 09\\03\\2006 at 11:54. File created on " + decFormat.format(calNow.get(Calendar.DAY_OF_MONTH)) + "\\" + decFormat.format((calNow.get(Calendar.MONTH) + 1)) + "\\" + calNow.get(Calendar.YEAR) + ", at " + decFormat.format(calNow.get(Calendar.HOUR_OF_DAY)) + ":" + decFormat.format(calNow.get(Calendar.MINUTE)) + " -->";

	}
	
}