| | |
| | | /* |
| | | * To change this license header, choose License Headers in Project Properties. |
| | | * To change this template file, choose Tools | Templates |
| | | * and open the template in the editor. |
| | | Mediazentrale - Personal Media Center |
| | | Copyright (C) 2021 Ulrich Hilger |
| | | |
| | | This program is free software: you can redistribute it and/or modify |
| | | it under the terms of the GNU Affero 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 Affero General Public License for more details. |
| | | |
| | | You should have received a copy of the GNU Affero General Public License |
| | | along with this program. If not, see <https://www.gnu.org/licenses/>. |
| | | */ |
| | | package de.uhilger.mediaz.store; |
| | | |
| | | import com.google.gson.Gson; |
| | | import com.google.gson.reflect.TypeToken; |
| | | import de.uhilger.mediaz.App; |
| | | import de.uhilger.mediaz.Server; |
| | | import de.uhilger.mediaz.entity.Ablageort; |
| | |
| | | import java.util.logging.Logger; |
| | | import de.uhilger.mediaz.entity.Entity; |
| | | import java.util.ArrayList; |
| | | import java.util.HashMap; |
| | | import java.util.List; |
| | | import java.util.Map; |
| | | import java.util.logging.Level; |
| | | |
| | | /** |
| | | * Ablage fuer Dateien |
| | | * Ablage fuer Dateien der Mediazentrale |
| | | * |
| | | * [Basispfad]/[Typ]/[Name] |
| | | * |
| | |
| | | |
| | | private String fileBase; |
| | | |
| | | private Map<String, TypeToken> types; |
| | | |
| | | public FileStorage(String base) { |
| | | this.fileBase = base; |
| | | |
| | | // Beispiel: TypeToken<List<String>> list = new TypeToken<List<String>>() {}; |
| | | TypeToken<Ablageort> ttAblageort = new TypeToken<Ablageort>() {}; |
| | | types = new HashMap(); |
| | | types.put(Ablageort.class.getSimpleName(), ttAblageort); |
| | | } |
| | | |
| | | /** |
| | |
| | | * Der Name der Ablage muss eindeutig sein |
| | | * |
| | | * |
| | | * @param o |
| | | * @param entity |
| | | */ |
| | | public File writeToFile(Entity o) throws IOException { |
| | | Gson gson = new Gson(); |
| | | String className = o.getClass().getSimpleName(); |
| | | public File writeToFile(Entity entity) throws IOException { |
| | | String className = entity.getClass().getSimpleName(); |
| | | logger.finer(className); |
| | | File dir = new File(fileBase, className); |
| | | dir.mkdirs(); |
| | | File file = new File(dir, o.getName()); |
| | | File file = new File(dir, entity.getName()); |
| | | if(file.exists()) { |
| | | file.delete(); |
| | | } |
| | | FileWriter fw = new FileWriter(file); |
| | | fw.write(gson.toJson(o)); |
| | | Gson gson = new Gson(); |
| | | fw.write(gson.toJson(entity)); |
| | | fw.flush(); |
| | | fw.close(); |
| | | return file; |
| | | } |
| | | |
| | | public Entity readFromFile(File file) throws ClassNotFoundException, FileNotFoundException, IOException { |
| | | String type = typeFromName(file); |
| | | public String readFromFile(File file) throws IOException { |
| | | StringBuilder sb = new StringBuilder(); |
| | | FileReader in = new FileReader(file); |
| | | BufferedReader r = new BufferedReader(in); |
| | | BufferedReader r = new BufferedReader(new FileReader(file)); |
| | | String line = r.readLine(); |
| | | while(line != null) { |
| | | sb.append(line); |
| | | line = r.readLine(); |
| | | } |
| | | r.close(); |
| | | in.close(); |
| | | String json = sb.toString(); |
| | | Gson gson = new Gson(); |
| | | switch(type) { |
| | | case ST_ABLAGEORT: |
| | | return gson.fromJson(json, Ablageort.class); |
| | | default: |
| | | Ablageort ablage = new Ablageort(); |
| | | ablage.setName("Test"); |
| | | return ablage; |
| | | } |
| | | return sb.toString(); |
| | | } |
| | | |
| | | private String typeFromName(File file) { |
| | | //String path = file.getPath(); |
| | | //logger.info(path); |
| | | public Entity entityFromFile(File file) throws ClassNotFoundException, FileNotFoundException, IOException { |
| | | String json = readFromFile(file); |
| | | Gson gson = new Gson(); |
| | | return gson.fromJson(json, typeFromName(typeNameFromPath(file)).getType()); |
| | | } |
| | | |
| | | private String typeNameFromPath(File file) { |
| | | String[] parts = file.getPath().split(App.getRs(Server.RB_SLASH)); |
| | | //for(String part : parts) { |
| | | //logger.info(part); |
| | | //} |
| | | //logger.info("" + parts.length); |
| | | logger.info(parts[parts.length-2]); |
| | | return parts[parts.length-2]; |
| | | } |
| | | |
| | |
| | | |
| | | @Override |
| | | public Entity read(String typ, String name) { |
| | | File base = new File(fileBase); |
| | | File dir = new File(base, typ); |
| | | File file = new File(dir, name); |
| | | try { |
| | | return readFromFile(file); |
| | | return entityFromFile(getFile(typ, name)); |
| | | } catch (ClassNotFoundException | IOException ex) { |
| | | logger.log(Level.SEVERE, null, ex); |
| | | return null; |
| | |
| | | return list; |
| | | } |
| | | |
| | | @Override |
| | | public TypeToken typeFromName(String name) { |
| | | return types.get(name); |
| | | } |
| | | |
| | | @Override |
| | | public String readJson(String typ, String name) { |
| | | try { |
| | | return readFromFile(getFile(typ, name)); |
| | | } catch (IOException ex) { |
| | | logger.log(Level.SEVERE, null, ex); |
| | | return null; |
| | | } |
| | | } |
| | | |
| | | private File getFile(String typ, String name) { |
| | | File base = new File(fileBase); |
| | | File dir = new File(base, typ); |
| | | return new File(dir, name); |
| | | } |
| | | |
| | | @Override |
| | | public boolean delete(String typ, String name) { |
| | | File file = getFile(typ, name); |
| | | if(file.exists()) { |
| | | return file.delete(); |
| | | } else { |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | |
| | | |
| | | } |