/*
 * Created on Nov 20, 2003
 *  
 */
package net.sourceforge.fenixedu.applicationTier.utils;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

/**
 * @author Luis Cruz
 * 
 */
public abstract class FileUtil {

    protected static String inputFile;

    protected static String outputFile;

    protected static BufferedReader bufferedReader;

    public void processFile() {
	String outputBuffer = generateHeader();

	try {
	    bufferedReader = new BufferedReader(new FileReader(inputFile));
	    String line = new String();
	    int i = 0;
	    while (line != null) {
		line = bufferedReader.readLine();
		outputBuffer += processLine(Integer.valueOf(++i), line);
	    }
	} catch (FileNotFoundException e) {
	    e.printStackTrace();
	} catch (IOException e) {
	    e.printStackTrace();
	}

	outputBuffer += generateFooter();

	try {
	    FileWriter fileWriter = new FileWriter(outputFile);
	    fileWriter.write(outputBuffer);
	    fileWriter.close();
	} catch (IOException e1) {
	    e1.printStackTrace();
	}
    }

    /**
     * @param line
     * @return
     */
    abstract protected String processLine(Integer lineNumber, String line);

    /**
     * @param
     * @return
     */
    abstract protected String generateHeader();

    /**
     * @param
     * @return
     */
    abstract protected String generateFooter();

}