[client] do commit the changes :)

1 files changed, 52 insertions, 10 deletions

diff --git a/dozentenmodul/src/main/java/App.java b/dozentenmodul/src/main/java/App.java
index 10b9a460..0d3e0124 100644
--- a/dozentenmodul/src/main/java/App.java
+++ b/dozentenmodul/src/main/java/App.java
@@ -1,29 +1,71 @@
 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 {
-					// Pruefe und Erzeuge gegebenfalls Config
-					try {
-						Config.init();
-					} catch (IOException e) {
-						e.printStackTrace();
-						JOptionPane.showMessageDialog(null, e.getMessage(),
-								"Fehler", JOptionPane.ERROR_MESSAGE);
-						return;
-					}
-
 					// Aufruf und Anzeige des Login Fensters
 					Login_GUI frame = new Login_GUI();
 					frame.setVisible(true);