path: root/dozentenmodul/src/main/java/App.java

import gui.intro.Login_GUI;

import java.awt.EventQueue;
import java.io.File;
import java.io.IOException;

import javax.swing.JOptionPane;

import org.apache.log4j.FileAppender;
import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;

import config.Config;


public class App {

	// Logger
	private final static Logger LOGGER = Logger.getLogger(App.class);

	private static void setupLogger() {

		// path to the log file
		final String logFilePath = Config.getPath() + System.getProperty("file.separator") + "bwSuite.log";

		// check if we had an old log file
		final File logFile = new File(logFilePath);
		if (logFile.exists() && !logFile.isDirectory()) {
			// we have one, rename it to 'bwSuite.log.old'
			try {
				logFile.renameTo(new File(logFilePath + ".old"));
			} catch (Exception e) {
				LOGGER.error("Could not move '" + logFilePath +
							"' to '" + logFilePath + ".old':");
				e.printStackTrace();
			}
		}

		// add file appender to global logger
		FileAppender fa = null;
		try {
			fa = new FileAppender(new PatternLayout("%d [%F:%M] %m%n"), Config.getPath() + System.getProperty("file.separator") + "bwSuite.log");
			LOGGER.addAppender(fa);
			LOGGER.info("Starting logging to: " + Config.getPath() + System.getProperty("file.separator") + "bwSuite.log");
		} catch (IOException e) {
			e.printStackTrace();
		}
		LOGGER.info("Logger initialised.");
	}

	public static void main(String[] args) {

		// Pruefe und Erzeuge gegebenfalls Config
		try {
			Config.init();
		} catch (IOException e) {
			e.printStackTrace();
			JOptionPane.showMessageDialog(null, e.getMessage(),
					"Fehler", JOptionPane.ERROR_MESSAGE);
			return;
		}

		setupLogger();

		// start the GUI
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					// Aufruf und Anzeige des Login Fensters
					Login_GUI frame = new Login_GUI();
					frame.setVisible(true);

				} catch (Exception e) {
					e.printStackTrace();
					JOptionPane.showMessageDialog(null, e.getStackTrace(),
							"Message", JOptionPane.ERROR_MESSAGE);
				}
			}

		});
	}
}