/*
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mini-server - Ein minimalistischer HTTP-Server
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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.minsrv;
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import java.io.IOException;
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import java.util.HashMap;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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/**
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* <p>Die Hauptklasse des mini-server</p>
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*
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* <p>Folgende Kommandozeilenparameter werden verarbeitet </p>
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*
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* <p>ctx - Kontext des Servers <br>
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* www-data - lokales Datenverzeichnis <br>
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* port - Port</p>>
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*
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* <p>Beispiel: <code>java -jar mini-server.jar ctx="srv" www-data="/home/fred/www"
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* port=9090</code></p>
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*
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* <p>Startet den Server auf http://localhost:9090/srv und liefert Inhalte aus
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* dem Verzeichnis <code>/home/fred/www</code> aus.
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*
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* Ein Aufruf von http://localhost:9090/srv/pfad/zum/inhalt/index.html liefert
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* also die Datei 'index.html' aus dem Ordner /home/fred/www/pfad/zum/inhalt
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* aus.</p>
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*
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* <p>Mit http://localhost:9090/srv/server/stop werden Server und App
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* beendet.</p>
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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 App {
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private static final Logger logger = Logger.getLogger(App.class.getName());
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public static final String IP_PORT = "port";
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public static final String IP_WWW_DATA = "www-data";
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public static final String IP_CTX = "ctx";
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private static HashMap initParams;
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/**
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* <p>Start-Methode dieser Anwendung</p>
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*
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* @param args Kommandozeilenparameter
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*/
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public static void main(String[] args) {
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initParams = new HashMap();
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for (String arg : args) {
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String[] argParts = arg.split("=");
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initParams.put(argParts[0], argParts[1]);
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}
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String portStr = getInitParameter(IP_PORT);
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if (portStr != null) {
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Server server = new Server(Integer.parseInt(portStr));
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try {
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String ctxName = getInitParameter(IP_CTX);
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if (ctxName != null) {
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server.setContextName(ctxName);
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server.start();
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} else {
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logger.severe("Der Parameter " + IP_CTX + " muss angegeben werden.");
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}
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} catch (IOException ex) {
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Logger.getLogger(App.class.getName()).log(Level.SEVERE, null, ex);
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}
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} else {
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logger.severe("Der Parameter " + IP_PORT + " muss angegeben werden.");
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}
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}
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/**
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* Diese Anwendung stoppen
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*/
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public static void stop() {
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System.exit(0);
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}
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/**
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* Einen Kommandozeilenparameter ermitteln
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*
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* @param pname Names des Parameters
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* @return Inhalt des Parameters oder null, wenn der Parameter nicht gefunden
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* wurde
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*/
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public static String getInitParameter(String pname) {
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String param = null;
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Object o = initParams.get(pname);
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if (o != null) {
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param = o.toString();
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}
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return param;
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}
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}
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