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Logging: Default Global Exception Handler and Standardized Legacy Logging #993

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Jan 4, 2022
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Logging: Default Global Exception Handler and Standardized Legacy Logging #993

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51 changes: 24 additions & 27 deletions src/megameklab/com/MegaMekLab.java
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
/*
* MegaMekLab - Copyright (C) 2008
* MegaMekLab
* Copyright (c) 2008-2022 - The MegaMek Team. All Rights Reserved.
*
* Original author - jtighe (torren@users.sourceforge.net)
*
Expand Down Expand Up @@ -28,7 +29,8 @@

import javax.swing.*;
import java.awt.*;
import java.io.*;
import java.io.File;
import java.io.IOException;
import java.text.NumberFormat;
import java.time.LocalDate;
import java.util.ArrayList;
Expand All @@ -37,39 +39,35 @@
import java.util.Locale;

public class MegaMekLab {
public static void main(String[] args) {
public static void main(String... args) {
// First, create a global default exception handler
Thread.setDefaultUncaughtExceptionHandler((thread, t) -> {
LogManager.getLogger().error("Uncaught Exception Detected", t);
final String name = t.getClass().getName();
JOptionPane.showMessageDialog(null,
String.format("Uncaught %s detected. Please open up an issue containing all logs and the current unit file at https://github.com/MegaMek/megameklab/issues", name),
"Uncaught " + name, JOptionPane.ERROR_MESSAGE);
});

// Second, let's handle logging
MegaMek.showInfo();
showInfo();
MegaMek.handleLegacyLogging();

// Third, let's set some default properties
System.setProperty("apple.laf.useScreenMenuBar", "true");
System.setProperty("com.apple.mrj.application.apple.menu.about.name","MegaMekLab");
redirectOutput();
// Register any fonts in the fonts directory

// Fourth, register any fonts in the fonts directory
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
List<Font> fontList = new ArrayList<>();
collectFontsFromDir(Configuration.fontsDir(), fontList);
for (Font font : fontList) {
ge.registerFont(font);
}
startup();
}

private static void redirectOutput() {
try {
System.out.println("Redirecting output to megameklablog.txt");
File logDir = new File("logs");
if (!logDir.exists()) {
logDir.mkdir();
}
final String logFilename = "logs" + File.separator + "megameklablog.txt";
MegaMek.resetLogFile(logFilename);
PrintStream ps = new PrintStream(
new BufferedOutputStream(
new FileOutputStream(logFilename,
true),
64));
System.setOut(ps);
System.setErr(ps);
} catch (Exception e) {
LogManager.getLogger().error("Unable to redirect output to megameklablog.txt", e);
}
// Finally, let's handle startup
startup();
}

/**
Expand Down Expand Up @@ -119,7 +117,6 @@ public static void showInfo() {
}

private static void startup() {
showInfo();
Locale.setDefault(Locale.US);
EquipmentType.initializeTypes();
MechSummaryCache.getInstance();
Expand Down