leefichero.java

j2me游戏引擎

/*        
        GAEM - Graphical Adventure Engine for Mobiles (version 0.1)
        Copyright (C) 2005 Victor Borrull
        
        This file is part of GAEM.
        GAEM 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 2 of the License, or (at your option) any later version.
        GAEM 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/

import java.io.*;
/**     Esta clase se encarga de leer en fichero de texto .dat y devolverlo en forma de String.
*/
public class LeeFichero {
        /**     Lee el fichero segun la ruta pasada de par醡etro y lo devuelve como String.
        *       @param fichero Ruta al fichero.
        *       @return Contenido del fichero.
        */
        public String leeFichero(String fichero) {
                StringBuffer str = new StringBuffer();
        try {
                Class clase = this.getClass();
                InputStream is;
                is = clase.getResourceAsStream(fichero);
                byte [] arrayBytes = new byte[1];
        
                while ( is.read(arrayBytes) != -1 ) {
                        str.append(new String(arrayBytes));     //StringBuffer.append() es mas eficiente que String += String. Pero igualmente
                }                                               //sigo creando un String! :( InputStreamer no lee array de Chars, que append() si aceptaria sin convertir a String...
                is.close();
        } catch (IOException e) {
                e.printStackTrace();
        } catch (NullPointerException ficheroNoExiste) {
                return "";
        }
                return str.toString();
        }
}