com.k42b3.quantum.Entry.java Source code

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Here is the source code for com.k42b3.quantum.Entry.java

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/**
 * Quantum is an aggregator service which collects messages from different 
 * sources and publish them through an REST API.
 * 
 * Copyright (c) 2014 Christoph Kappestein <k42b3.x@gmail.com>
 * 
 * This file is part of Quantum. Quantum is free software: you can 
 * redistribute it and/or modify it under the terms of the GNU 
 * General Public License as published by the Free Software Foundation, 
 * either version 3 of the License, or at any later version.
 * 
 * Quantum 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Quantum. If not, see <http://www.gnu.org/licenses/>.
 */

package com.k42b3.quantum;

import org.apache.commons.cli.BasicParser;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Options;
import org.apache.log4j.Layout;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;
import org.apache.log4j.WriterAppender;

/**
 * Entry
 *
 * @author  Christoph Kappestein <k42b3.x@gmail.com>
 * @license http://www.gnu.org/licenses/gpl.html GPLv3
 * @link    https://github.com/k42b3/quantum
 */
public class Entry {
    public static void main(String[] args) throws Exception {
        // logging
        Layout layout = new PatternLayout(PatternLayout.TTCC_CONVERSION_PATTERN);

        Logger.getLogger("com.k42b3.quantum").addAppender(new WriterAppender(layout, System.out));

        // options
        Options options = new Options();
        options.addOption("p", "port", false, "Port for the web server default is 8080");
        options.addOption("i", "interval", false,
                "The interval how often each worker gets triggered in minutes default is 2");
        options.addOption("d", "database", false, "Path to the sqlite database default is \"quantum.db\"");
        options.addOption("l", "log", false,
                "Defines the log level default is ERROR possible is (ALL, TRACE, DEBUG, INFO, WARN, ERROR, FATAL, OFF)");
        options.addOption("v", "version", false, "Shows the current version");
        options.addOption("h", "help", false, "Shows the help");

        CommandLineParser parser = new BasicParser();
        CommandLine cmd = parser.parse(options, args);

        // start app
        Quantum app = new Quantum();

        if (cmd.hasOption("p")) {
            try {
                int port = Integer.parseInt(cmd.getOptionValue("p"));

                app.setPort(port);
            } catch (NumberFormatException e) {
                Logger.getLogger("com.k42b3.quantum").info("Port must be an integer");
            }
        }

        if (cmd.hasOption("i")) {
            try {
                int pollInterval = Integer.parseInt(cmd.getOptionValue("i"));

                app.setPollInterval(pollInterval);
            } catch (NumberFormatException e) {
                Logger.getLogger("com.k42b3.quantum").info("Interval must be an integer");
            }
        }

        if (cmd.hasOption("d")) {
            String dbPath = cmd.getOptionValue("d");

            if (!dbPath.isEmpty()) {
                app.setDbPath(dbPath);
            }
        }

        if (cmd.hasOption("l")) {
            Logger.getLogger("com.k42b3.quantum").setLevel(Level.toLevel(cmd.getOptionValue("l")));
        } else {
            Logger.getLogger("com.k42b3.quantum").setLevel(Level.ERROR);
        }

        if (cmd.hasOption("v")) {
            System.out.println("Version: " + Quantum.VERSION);
            System.exit(0);
        }

        if (cmd.hasOption("h")) {
            HelpFormatter formatter = new HelpFormatter();
            formatter.printHelp("quantum.jar", options);
            System.exit(0);
        }

        app.run();
    }
}