/*
|
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.api;
|
|
import com.google.gson.Gson;
|
import com.sun.net.httpserver.HttpExchange;
|
import de.uhilger.mediaz.App;
|
import static de.uhilger.mediaz.App.RB_EP_LISTE;
|
import de.uhilger.mediaz.Server;
|
import de.uhilger.mediaz.store.FileStorage;
|
import de.uhilger.mediaz.entity.Entity;
|
import java.io.IOException;
|
import java.util.List;
|
import java.util.logging.Level;
|
import java.util.logging.Logger;
|
|
/**
|
* HttpHandler fuer die Verwaltung von Entitaeten der Mediazentrale
|
*
|
* @author Ulrich Hilger
|
* @version 1, 5.4.2021
|
*/
|
public class StorageHandler extends AbstractHandler {
|
|
private static final Logger logger = Logger.getLogger(StorageHandler.class.getName());
|
|
@Override
|
protected String put(HttpExchange e) throws IOException {
|
String path = e.getRequestURI().toString();
|
String[] elems = path.split(Server.SLASH);
|
String type = elems[elems.length - 2];
|
String elemName = elems[elems.length - 1]; // alter Name, wenn Aenderung
|
if(!elemName.equalsIgnoreCase(App.getRs(RB_EP_LISTE))) {
|
FileStorage fs = new FileStorage(App.getInitParameter(App.getRs(App.RB_AP_CONF)));
|
Gson gson = new Gson();
|
logger.log(Level.FINE, "type: {0}, token: {1}", new Object[]{type, fs.typeFromName(type).getType().getTypeName()});
|
Object o = gson.fromJson(bodyLesen(e), fs.typeFromName(type).getType());
|
if(o instanceof Entity) {
|
Entity entity = (Entity) o;
|
if(fs.exists(type, elemName)) {
|
fs.delete(type, elemName);
|
fs.write(entity, true);
|
} else {
|
fs.write(entity, false);
|
}
|
return type + Server.SLASH + entity.getName();
|
} else {
|
return "Ungueltiges Objekt im Body.";
|
}
|
} else {
|
return "Ungueltiger Elementname: " + App.getRs(RB_EP_LISTE);
|
}
|
}
|
|
private boolean loeschen(HttpExchange e) {
|
String path = e.getRequestURI().toString();
|
String[] elems = path.split(Server.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)));
|
return fs.delete(type, elemName);
|
}
|
|
private String lesen(HttpExchange e) {
|
String path = e.getRequestURI().toString();
|
String[] elems = path.split(Server.SLASH);
|
FileStorage fs = new FileStorage(App.getInitParameter(App.getRs(App.RB_AP_CONF)));
|
if(path.endsWith(Server.SLASH)) {
|
List list = null;
|
if(elems[elems.length - 1].equalsIgnoreCase(App.getRs(RB_EP_LISTE))) {
|
String type = elems[elems.length - 2];
|
logger.fine(type);
|
list = fs.list(type);
|
} else {
|
String type = elems[elems.length - 1];
|
logger.fine(type);
|
list = fs.listObjects(type);
|
}
|
return jsonWithEnclosingType(list);
|
} else {
|
String type = elems[elems.length - 2];
|
String elemName = elems[elems.length - 1];
|
return fs.readJson(type, elemName);
|
}
|
}
|
|
@Override
|
public String get(HttpExchange e) {
|
return lesen(e);
|
}
|
|
@Override
|
public String post(HttpExchange e) {
|
return "nicht unterstuetzt";
|
}
|
|
@Override
|
public boolean delete(HttpExchange e) {
|
return loeschen(e);
|
}
|
}
|