src/de/uhilger/mediaz/api/StorageHandler.java | ●●●●● patch | view | raw | blame | history | |
src/de/uhilger/mediaz/store/FileStorage.java | ●●●●● patch | view | raw | blame | history | |
src/de/uhilger/mediaz/store/Storage.java | ●●●●● patch | view | raw | blame | history |
src/de/uhilger/mediaz/api/StorageHandler.java
@@ -22,6 +22,7 @@ import com.sun.net.httpserver.HttpHandler; import de.uhilger.mediaz.App; import de.uhilger.mediaz.Server; import static de.uhilger.mediaz.Server.RB_SLASH; import de.uhilger.mediaz.store.FileStorage; import de.uhilger.mediaz.entity.Entity; import java.io.BufferedReader; @@ -30,6 +31,7 @@ import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; @@ -45,13 +47,18 @@ /* HTTP GET: lies einen Ablageort und schreibe JSON HTTP PUT: schreibe einen neuen Ablageort auf die Platte HTTP POST: schreibe Aenderungen auf die Platte HTTP DELETE: loesche den Ablageort Das REST-Muster sieht je Entitaet fuenf Faelle vor (Beispiel Ablageort): 1. HTTP GET Ablageort/[Name]: Liefere den Ablageort als JSON 2. HTTP GET Ablageort/: Liefere einer Liste von Ablageorten als JSON 3. HTTP PUT: schreibe einen neuen Ablageort auf die Platte 4. HTTP POST: schreibe Aenderungen auf die Platte 5. HTTP DELETE: loesche den Ablageort Beispiele: HTTP GET an /mz/api/store/Ablageort/ liefert eine Liste der Namen vorhandener Ablageorte HTTP GET an /mz/api/store/Ablageort/Katalog liest den Ablageort namens "Katalog" @@ -68,9 +75,16 @@ */ /** Name der HTTP Methode GET */ public static final String HTTP_GET = "GET"; /** Name der HTTP Methode PUT */ public static final String HTTP_PUT = "PUT"; /** Name der HTTP Methode POST */ public static final String HTTP_POST = "POST"; /** Name der HTTP Methode DELETE */ public static final String HTTP_DELETE = "DELETE"; @Override @@ -90,7 +104,7 @@ break; case HTTP_PUT: response = "PUT noch bauen."; response = aendern(e); break; case HTTP_POST: @@ -98,7 +112,12 @@ break; case HTTP_DELETE: response = "DELETE noch bauen."; boolean geloescht = loeschen(e); if(geloescht) { response = "geloescht"; } else { response = "nicht geloescht"; } break; } logger.info(response); @@ -129,23 +148,34 @@ return type + FileHandler.STR_BLANK + filename; } private void aendern() { private String aendern(HttpExchange e) throws IOException { return neu(e); // einstweilen wird einfach ueberschrieben } private void loeschen() { } private String lesen(HttpExchange e) { private boolean loeschen(HttpExchange e) { String path = e.getRequestURI().toString(); String[] elems = path.split(App.getRs(Server.RB_SLASH)); String type = elems[elems.length - 2]; String elemName = elems[elems.length - 1]; FileStorage fs = new FileStorage(App.getInitParameter(App.getRs(App.RB_AP_CONF))); //Entity entity = fs.read(type, elemName); //return entity; return fs.readJson(type, elemName); return fs.delete(type, elemName); } private String lesen(HttpExchange e) { String path = e.getRequestURI().toString(); String[] elems = path.split(App.getRs(Server.RB_SLASH)); FileStorage fs = new FileStorage(App.getInitParameter(App.getRs(App.RB_AP_CONF))); if(path.endsWith(App.getRs(RB_SLASH))) { String type = elems[elems.length - 1]; logger.info(type); List list = fs.list(type); Gson gson = new Gson(); return gson.toJson(list); } else { String type = elems[elems.length - 2]; String elemName = elems[elems.length - 1]; return fs.readJson(type, elemName); } } src/de/uhilger/mediaz/store/FileStorage.java
@@ -1,7 +1,19 @@ /* * 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; @@ -25,7 +37,7 @@ import java.util.logging.Level; /** * Ablage fuer Dateien * Ablage fuer Dateien der Mediazentrale * * [Basispfad]/[Typ]/[Name] * @@ -66,20 +78,20 @@ * Der Name der Ablage muss eindeutig sein * * * @param o * @param entity */ public File writeToFile(Entity o) throws IOException { 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); Gson gson = new Gson(); fw.write(gson.toJson(o)); fw.write(gson.toJson(entity)); fw.flush(); fw.close(); return file; @@ -105,7 +117,6 @@ private String typeNameFromPath(File file) { String[] parts = file.getPath().split(App.getRs(Server.RB_SLASH)); logger.info(parts[parts.length-2]); return parts[parts.length-2]; } @@ -162,6 +173,16 @@ 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; } } } src/de/uhilger/mediaz/store/Storage.java
@@ -76,4 +76,6 @@ public List<String> list(String typ); public TypeToken typeFromName(String name); public boolean delete(String typ, String name); }