FileTools.java Source code

Introduction

Here is the source code for FileTools.java

Source

/**
 *
DEScribe - A Discrete Experience Sampling cross platform application
Copyright (C) 2011
Sbastien Faure <sebastien.faure3@gmail.com>,
Bertrand Gros   <gros.bertrand@gmail.com>,
Yannick Prie    <yannick.prie@univ-lyon1.fr>.
    
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/>.
 *
 */

//package api.utils;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

/**
 * Class FileTools.java
 * @description Tools for files
 * @author Sbastien Faure  <sebastien.faure3@gmail.com>
 * @author Bertrand Gros    <gros.bertrand@gmail.com>
 * @version 2011-02-02
 */
public class FileTools {

    /** copie le fichier source dans le fichier resultat
     * retourne vrai si cela russit
     */
    public static boolean copyFile(File source, File dest) {
        try {
            // Declaration et ouverture des flux
            java.io.FileInputStream sourceFile = new java.io.FileInputStream(source);

            try {
                java.io.FileOutputStream destinationFile = null;

                try {
                    destinationFile = new FileOutputStream(dest);

                    // Lecture par segment de 0.5Mo
                    byte buffer[] = new byte[512 * 1024];
                    int nbLecture;

                    while ((nbLecture = sourceFile.read(buffer)) != -1) {
                        destinationFile.write(buffer, 0, nbLecture);
                    }
                } finally {
                    destinationFile.close();
                }
            } finally {
                sourceFile.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
            return false; // Erreur
        }

        return true; // Rsultat OK
    }

    /**
     * Dplace le fichier source dans le fichier rsultat
     */
    public static boolean moveFile(File source, File destination) {
        if (!destination.exists()) {
            // On essaye avec renameTo
            boolean result = source.renameTo(destination);
            if (!result) {
                // On essaye de copier
                result = true;
                result &= copyFile(source, destination);
                if (result)
                    result &= source.delete();

            }
            return (result);
        } else {
            // Si le fichier destination existe, on annule ...
            return (false);
        }
    }

}