| commit | author | age | ||
| e369b9 | 1 | /* |
| c45b52 | 2 | fm - File management class library |
| e369b9 | 3 | Copyright (C) 2024 Ulrich Hilger |
| U | 4 | |
| 5 | This program is free software: you can redistribute it and/or modify | |
| 6 | it under the terms of the GNU Affero General Public License as | |
| 7 | published by the Free Software Foundation, either version 3 of the | |
| 8 | License, or (at your option) any later version. | |
| 9 | ||
| 10 | This program is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | GNU Affero General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Affero General Public License | |
| 16 | along with this program. If not, see <https://www.gnu.org/licenses/>. | |
| 17 | */ | |
| 18 | package de.uhilger.fm; | |
| 19 | ||
| 20 | import java.io.File; | |
| 21 | import java.io.IOException; | |
| 22 | import java.nio.file.Files; | |
| 23 | ||
| 24 | /** | |
| ae26b0 | 25 | * Eine Datei duplizieren |
| U | 26 | * |
| e369b9 | 27 | * @author Ulrich Hilger |
| U | 28 | * @version 0.1, 08.11.2024 |
| 29 | */ | |
| 30 | public class Duplicator { | |
| 31 | ||
| ae26b0 | 32 | /** |
| U | 33 | * Eine Datei duplizieren. Es entsteht eine neue Datei mit Namen |
| 34 | * [Dateiname]-Kopie.[Endung], d.h. eine Datei namens datei.txt | |
| 35 | * wird dupliziert in datei-Kopie.txt | |
| 36 | * | |
| 37 | * Wenn die Zieldatei bereits existiert, wird der neuen Datei eine | |
| 38 | * laufende Nummer angehaengt, d.h. aus datei.txt wird datei-Kopie-1.txt, | |
| 39 | * wenn datei-Kopie.txt bereits existiert. | |
| 40 | * | |
| 41 | * @param base der absolute Basispfad | |
| 42 | * @param relPfad relative Pfad nebst Name der zu duplizierenden Datei | |
| 43 | * @return Name des erstellten Duplikats | |
| 44 | * @throws IOException wenn etwas schief geht | |
| 45 | */ | |
| e369b9 | 46 | public String duplizieren(String base, String relPfad) throws IOException { |
| U | 47 | File srcFile = new File(base, relPfad); |
| 48 | String fnameext = srcFile.getName(); | |
| 49 | int dotpos = fnameext.lastIndexOf("."); | |
| 50 | String fname = fnameext.substring(0, dotpos); | |
| 51 | String ext = fnameext.substring(dotpos); | |
| 52 | File srcDir = srcFile.getParentFile(); | |
| 53 | File destFile = new File(srcDir, fname + "-Kopie" + ext); | |
| 54 | int i = 1; | |
| 55 | while (destFile.exists()) { | |
| 56 | destFile = new File(srcDir, fname + "-Kopie-" + Integer.toString(++i) + ext); | |
| 57 | } | |
| 58 | Files.copy(srcFile.toPath(), destFile.toPath()); | |
| 59 | return destFile.getName(); | |
| 60 | } | |
| 61 | ||
| 62 | } | |
