| 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 com.google.gson.Gson; | |
| 21 | import java.io.File; | |
| 22 | import java.io.IOException; | |
| 23 | import java.util.ArrayList; | |
| 24 | import java.util.Arrays; | |
| 25 | ||
| 26 | ||
| 27 | /** | |
| 28 | * Eine Klasse zur Bildung einer Liste mit den Dateien eines Verzeichnisses. | |
| 29 | * | |
| 30 | * Varianten von Bilddateien werden ausgeblendet. Enthaelt ein Ordner die Dateien | |
| 31 | * mein-bild.jpg | |
| 32 | * mein-bild_tn.jpg | |
| 33 | * mein-bild_kl.jpg | |
| 34 | * erscheint nur die Datei mein-bild.jpg in der Liste. | |
| 35 | * | |
| 36 | * | |
| 37 | * @author Ulrich Hilger | |
| 38 | * @version 0.1, 05.11.2024 | |
| 39 | */ | |
| 40 | public class Lister { | |
| 41 | ||
| 42 | public static final String STR_DOT = "."; | |
| 43 | ||
| 269203 | 44 | /** |
| U | 45 | * |
| 46 | * @param fName Name und relativer Pfad des Ordners, dessen Inhalt aufgelistet werden soll | |
| 47 | * @param ctxPath Kontext Pfad zur Bildung des URL, der auf die Miniaturansicht verweist | |
| 48 | * (koennte evtl. im Client gebildet werden, hier dann nur Mini-Dateiname zurueckgeben) | |
| 49 | * @param base Basisverzeichnis, gegen das der relative Pfad aufgeloest werden soll | |
| 50 | * @return die Dateiliste als JSON String | |
| 51 | * @throws IOException | |
| 52 | */ | |
| e369b9 | 53 | public String liste(String fName, String ctxPath, String base/*, String path*/) throws IOException { |
| U | 54 | File[] files = new File(base, fName).listFiles(new ImageFileFilter()); |
| 55 | if (files != null && files.length > 0) { | |
| 56 | Arrays.sort(files); | |
| 57 | ArrayList liste = new ArrayList(); | |
| 58 | for (File file : files) { | |
| 59 | Datei datei = new Datei(); | |
| 60 | String dateiName = file.getName(); | |
| 61 | datei.setName(dateiName); | |
| 62 | if (file.isDirectory()) { | |
| 63 | datei.setTyp(Datei.TYP_ORDNER); | |
| 64 | } else { | |
| 65 | datei.setTyp(Datei.TYP_DATEI); | |
| 66 | } | |
| 67 | String lowerName = dateiName.toLowerCase(); | |
| 973951 | 68 | if (lowerName.endsWith(ImageFileFilter.JPEG) |
| U | 69 | || lowerName.endsWith(ImageFileFilter.JPG) |
| 70 | || lowerName.endsWith(ImageFileFilter.PNG)) { | |
| e369b9 | 71 | datei.setBild(true); |
| U | 72 | String ext = dateiName.substring(dateiName.lastIndexOf(STR_DOT)); |
| 73 | String ohneExt = dateiName.substring(0, dateiName.lastIndexOf(STR_DOT)); | |
| 973951 | 74 | datei.setMiniurl(ctxPath + /*"/" + */ fName + ohneExt + ImageFileFilter.TN + ext); |
| e369b9 | 75 | //buildImgSrc(file, datei, ohneExt, ext); |
| U | 76 | } |
| 77 | liste.add(datei); | |
| 78 | } | |
| 79 | //while(threadCount > 0) { | |
| 80 | // try { | |
| 81 | // Thread.sleep(50); | |
| 82 | // } catch (InterruptedException ex) { | |
| 83 | // Logger.getLogger(FileManager.class.getName()).log(Level.SEVERE, null, ex); | |
| 84 | // } | |
| 85 | //} | |
| 86 | if (!liste.isEmpty()) { | |
| 87 | DirList list = new DirList(); | |
| 88 | list.setPfad(ctxPath + fName); | |
| 89 | list.setDateien(liste); | |
| 90 | Gson gson = new Gson(); | |
| 91 | String json = gson.toJson(list); | |
| 92 | return json; | |
| 93 | } else { | |
| 94 | return null; | |
| 95 | } | |
| 96 | } else { | |
| 97 | return null; | |
| 98 | } | |
| 99 | //} else { | |
| 100 | //} | |
| 101 | } | |
| 102 | ||
| 103 | } | |
