/*
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Mediazentrale - Personal Media Center
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Copyright (C) 2021 Ulrich Hilger
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package de.uhilger.mediaz;
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import com.sun.net.httpserver.HttpServer;
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import de.uhilger.mediaz.api.FileHandler;
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import de.uhilger.mediaz.api.GeraetSteuerung;
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import de.uhilger.mediaz.api.ListFileHandler;
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import de.uhilger.mediaz.api.ListHandler;
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import de.uhilger.mediaz.api.MediaSteuerung;
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import de.uhilger.mediaz.api.StopServerHandler;
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import de.uhilger.mediaz.api.StorageHandler;
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import de.uhilger.mediaz.store.FileStorage;
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import de.uhilger.mediaz.entity.Ablageort;
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import java.io.File;
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import java.io.IOException;
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import java.util.logging.Logger;
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import java.net.InetSocketAddress;
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import java.util.concurrent.Executors;
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import java.util.logging.Level;
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import de.uhilger.mediaz.entity.Entity;
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import java.util.Iterator;
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import java.util.List;
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/**
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* Die Klasse Server stellt Methoden zur Ausführung eines HTTP-Servers
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* bereit
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*
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* @author Ulrich Hilger
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* @version 0.1, 25.03.2021
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*/
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public class Server {
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private static final Logger logger = Logger.getLogger(Server.class.getName());
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public static final String RB_SERVER_START_MSG = "msgServerStart";
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public static final String RB_WEBROOT = "webroot";
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public static final String RB_STORE = "store";
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public static final String RB_STRG = "strg";
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public static final String RB_GSTRG = "gstrg";
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public static final String RB_ALIST= "alist";
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//public static final String RB_UI_ROOT = "uiroot";
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public static final String RB_STOP_SERVER = "stopServer";
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//public static final String RB_ABLAGE_TEST = "testAblage";
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//public static final String RB_STORE_TEST = "testStore";
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public static final String SLASH = "/";
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private int port;
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private String ctx;
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private HttpServer server;
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/**
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* Ein neues Objekt der Kalsse Server erzeugen
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*
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* @param port der Port, über den dieser Server erreichbar sein soll
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*/
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public Server(int port) {
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this.port = port;
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}
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/**
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* Den Port angeben, unter dem der Server erreichbar sein soll
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*
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* @param port der Port, unter dem der Server erreichbar sein soll
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*/
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public void setPort(int port) {
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this.port = port;
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}
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/**
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* Den Namen des Kontexts angeben, über den dieser Server erreichbar sein
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* soll
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*
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* @param ctxName Name des Kontexts, unter dem der Server aufrufbar sein soll
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*/
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public void setContextName(String ctxName) {
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if (!ctxName.startsWith(SLASH)) {
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this.ctx = SLASH + ctxName;
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} else {
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this.ctx = ctxName;
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}
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}
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/**
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* Die Endpunkte einrichten, unter denen die Dienste dieses
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* Servers erreichbar sein sollen und den Server starten
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*
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* @throws IOException wenn etwas schief geht, finden sich Angaben in diesem
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* Objekt
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* @throws java.lang.ClassNotFoundException
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*/
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public void start() throws IOException, ClassNotFoundException {
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logger.log(Level.INFO, App.getRs(RB_SERVER_START_MSG), Integer.toString(port));
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String wwwData = App.getInitParameter(App.getRs(App.RB_AP_WWW_DATA));
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File wwwDir = new File(wwwData);
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server = HttpServer.create(new InetSocketAddress(port), 0);
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server.createContext(ctx + App.getRs(RB_WEBROOT), new FileHandler(wwwDir.getAbsolutePath()));
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ablageorteEinklinken(server);
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server.createContext(ctx + App.getRs(RB_STORE), new StorageHandler());
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server.createContext(ctx + App.getRs(RB_STRG), new MediaSteuerung());
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server.createContext(ctx + App.getRs(RB_GSTRG), new GeraetSteuerung());
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server.createContext(ctx + App.getRs(RB_ALIST), new ListHandler());
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server.createContext(ctx + App.getRs(RB_STOP_SERVER), new StopServerHandler());
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server.setExecutor(Executors.newFixedThreadPool(20));
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server.start();
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}
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public void ablageortEntfernen(String url) {
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server.removeContext(ctx + url);
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}
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public void ablageortHinzufuegen(Ablageort ort) {
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server.createContext(ctx + ort.getUrl(),
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new ListFileHandler(new File(ort.getOrt()).getAbsolutePath()));
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}
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private void ablageorteEinklinken(HttpServer server)
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throws ClassNotFoundException, IOException {
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String typ = Ablageort.class.getSimpleName();
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FileStorage store = new FileStorage(App.getInitParameter(App.getRs(App.RB_AP_CONF)));
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List<String> orte = store.list(typ);
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Iterator<String> i = orte.iterator();
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while(i.hasNext()) {
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String ortName = i.next();
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Entity e = store.read(typ, ortName);
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if(e instanceof Ablageort) {
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Ablageort ablageort = (Ablageort) e;
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logger.log(Level.FINE, "{0}{1}", new Object[]{ctx, ablageort.getUrl()});
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logger.fine(ablageort.getOrt());
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server.createContext(ctx + ablageort.getUrl(),
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new ListFileHandler(new File(ablageort.getOrt()).getAbsolutePath()));
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}
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}
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}
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}
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