| 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.DirectoryStream; | |
| 23 | import java.nio.file.Files; | |
| 24 | import java.nio.file.Path; | |
| 25 | import java.util.List; | |
| 26 | ||
| 27 | /** | |
| 28 | * Eine Klasse mit Methoden zum Loeschen von Dateien | |
| 29 | * | |
| 30 | * @author Ulrich Hilger, 15. Januar 2024 | |
| 31 | */ | |
| 32 | public class Eraser { | |
| 973951 | 33 | |
| U | 34 | public static final int OP_DELETE = 3; |
| 35 | ||
| 8f4ae9 | 36 | private final String STR_DOT = "."; |
| U | 37 | |
| e369b9 | 38 | public String deleteFiles(String relPath, List<String> fileNames, String base) { |
| U | 39 | String result = null; |
| 40 | try { | |
| 41 | //logger.fine(fileNames.toString()); | |
| 8f4ae9 | 42 | if (!relPath.startsWith(STR_DOT)) { |
| e369b9 | 43 | File targetDir = new File(base, relPath); // getTargetDir(relPath); |
| U | 44 | //logger.fine("targetDir: " + targetDir); |
| 45 | for (String fileName : fileNames) { | |
| 46 | File targetFile = new File(targetDir, fileName); | |
| 47 | //logger.fine(targetFile.getAbsolutePath()); | |
| 48 | if (targetFile.isDirectory()) { | |
| a11f6c | 49 | FileOpsVisitor bearbeiter = new FileOpsVisitor(); |
| 973951 | 50 | bearbeiter.setOperation(OP_DELETE); |
| e369b9 | 51 | Files.walkFileTree(targetFile.toPath(), bearbeiter); |
| U | 52 | } else { |
| 53 | /* | |
| 54 | Wenn targetFile mit jpg, jpeg oder png endet, | |
| 55 | muss eine Unterfunktion eine Liste aller Dateien bilden, | |
| 56 | die so heissen, also z.B. alle [Dateiname]*.jpg | |
| 57 | */ | |
| 58 | String fname = targetFile.getName().toLowerCase(); | |
| 973951 | 59 | if (fname.endsWith(ImageFileFilter.JPEG) |
| U | 60 | || fname.endsWith(ImageFileFilter.JPG) |
| 61 | || fname.endsWith(ImageFileFilter.PNG)) { | |
| e369b9 | 62 | deleteImgFiles(targetDir, targetFile); |
| U | 63 | } else { |
| 64 | targetFile.delete(); | |
| 65 | } | |
| 66 | } | |
| 67 | } | |
| 68 | result = "deleted"; | |
| 69 | } | |
| 70 | } catch (IOException ex) { | |
| 71 | //logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex); | |
| 72 | } | |
| 73 | return result; | |
| 74 | } | |
| 75 | ||
| 76 | private void deleteImgFiles(File targetDir, File targetFile) throws IOException { | |
| 77 | String fnameext = targetFile.getName(); | |
| 8f4ae9 | 78 | int dotpos = fnameext.lastIndexOf(STR_DOT); |
| e369b9 | 79 | String fname = fnameext.substring(0, dotpos); |
| U | 80 | String ext = fnameext.substring(dotpos); |
| 81 | //logger.fine("fname: " + fname + ", ext: " + ext); | |
| 82 | DirectoryStream<Path> stream = Files.newDirectoryStream(targetDir.toPath(), fname + "*" + ext); //"*.{txt,doc,pdf,ppt}" | |
| 83 | for (Path path : stream) { | |
| 84 | //logger.fine(path.getFileName().toString()); | |
| 85 | Files.delete(path); | |
| 86 | } | |
| 87 | stream.close(); | |
| 88 | } | |
| 89 | ||
| 90 | } | |
