Fichero.java

/***********************************************************************

	This file is part of KEEL-software, the Data Mining tool for regression, 
	classification, clustering, pattern mining and so on.

	Copyright (C) 2004-2010
	
	F. Herrera (herrera@decsai.ugr.es)
    L. S�nchez (luciano@uniovi.es)
    J. Alcal�-Fdez (jalcala@decsai.ugr.es)
    S. Garc�a (sglopez@ujaen.es)
    A. Fern�ndez (alberto.fernandez@ujaen.es)
    J. Luengo (julianlm@decsai.ugr.es)

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program.  If not, see http://www.gnu.org/licenses/
  
**********************************************************************/

/*
 * Created on 16-Jun-2004
 *
 * Functions for using data file
 * 
 */

/**
 * @author Jes�s Alcal� Fern�ndez
 */
package keel.Algorithms.RE_SL_Postprocess.TSKSelect;
import java.io.*;
import java.util.*;

public class Fichero{


	/* Function for reading a data file in a String Object */
	public static String leeFichero(String nombreFichero) {
		String cadena = "";

	    try {
			FileInputStream fis = new FileInputStream(nombreFichero);

			byte[] leido = new byte[4096];
			int bytesLeidos = 0;

			while (bytesLeidos != -1) {
				bytesLeidos = fis.read(leido);

				if (bytesLeidos != -1) {
					cadena += new String(leido, 0, bytesLeidos);
				}
			}

			fis.close();
		}
		catch (IOException e) {
			e.printStackTrace();
			System.exit(-1);
		}

		return cadena;
	}


	/* Function for writing a String Object in a file */
	public static void escribeFichero (String nombreFichero, String cadena) {
	    try {
			FileOutputStream f = new FileOutputStream(nombreFichero);
			DataOutputStream fis = new DataOutputStream((OutputStream) f);

			fis.writeBytes(cadena);

			fis.close();
		}
		catch (IOException e) {
			e.printStackTrace();
			System.exit(-1);
		}
	}


	/* Function for adding a String Object to a file */
	public static void AnadirtoFichero (String nombreFichero, String cadena) {
	    try {
			RandomAccessFile fis = new RandomAccessFile(nombreFichero, "rw");
			fis.seek(fis.length());

			fis.writeBytes(cadena);

			fis.close();
		}
		catch (IOException e) {
			e.printStackTrace();
			System.exit(-1);
		}
	}

}