TaiGameLaunch.java

package Deployments.LocalOnly;

import java.awt.Component;
import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Properties;

import javax.swing.JOptionPane;
import javax.swing.JTextArea;

/**
 * Basically just handles logging, for now.
 * @author Benjamin
 */
public abstract class TaiGameLaunch {
	/**
	 * Class to launch is the first argument.
	 */
	public static void main(String[] args) {
		String classToLoad = args[0];
		launch(classToLoad);
	}

	private ThreadGroup group;

	private static void launch(String classToLoad) {
		try {
			ClassLoader cl = TaiGameLaunch.class.getClassLoader();
			Class child = cl.loadClass(classToLoad);
			final TaiGameLaunch k = (TaiGameLaunch) child.newInstance();
			setErrorLog(k);
			k.group = new ThreadGroup(k.getGameName() + "ThreadGroup") {
				public void uncaughtException(Thread t, Throwable e) {
					death0(e, k.getGameName(), k.logFile, true, k.myGUI); //These will kill the game
				}
			};
			new Thread(k.group, "TaiGameLaunch") {
				public void run() {
					k.launch();
				}
			}.start();
		} catch (Throwable e) {
			death0(e, "TaiGameLaunch", "N/A", true, null); //Couldn't get error handling in time.
		}
	}

	public abstract String getGameName();

	public abstract void launch();

	private Component myGUI;

	/**
	 * So that the error window pops up correctly.
	 */
	public void setMainGUIElement(Component e) {
		myGUI = e;
	}

	public void death(Throwable e) {
		death0(e, getGameName(), logFile, true, myGUI);
	}

	private static void death0(Throwable e, String name, String logFile,
			boolean die, Component GUIElement) {
		e.printStackTrace(); //Goes to logger
		JTextArea txtarea = new JTextArea();
		String txt = "";
		if (e.getCause() != null) {
			txt += e.getCause().getMessage() + "\r\n";
			txt += "(Was child exception of " + e.getClass().getSimpleName()
					+ ")\r\n";
		} else {
			txt += e.getMessage() + "\r\n";
		}
		txt += "See the logfile: " + logFile;
		txtarea.setText(txt);
		JOptionPane.showMessageDialog(GUIElement, txtarea, "Fatal Error in "
				+ name, JOptionPane.ERROR_MESSAGE);
		if (die)
			System.exit(1);
	}

	/**
	 * Called before launch!!!
	 */
	private String logFile;

	private static void setErrorLog(final TaiGameLaunch k) {
		System.setErr(new PrintStream(System.err) {
			PrintStream actOut;
			{
				try {
					DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
					k.logFile = "log" + df.format(new Date()) + ".txt";
					actOut = new PrintStream(new FileOutputStream(new File(
							k.logFile), true));
				} catch (Throwable e) {
					k.death(e);
				}
			}

			public void write(byte[] k, int s, int e) {
				actOut.write(k, s, e);
				super.write(k, s, e);
			}

		});
		System.err.println("////////////////////////////////////");
		System.err.println("Logging enabled " + new Date());

		Properties p = System.getProperties();
		String lineFormat = "%-10s%20s||%-10s%50s";
		System.err.printf(lineFormat, "vm/java", p
				.getProperty("java.vm.vendor")
				+ " /" + p.getProperty("java.specification.version"), "OS", p
				.getProperty("os.arch")
				+ " arch of " + p.getProperty("os.name"));
		System.err.println();
		System.err.println("java.library.PATH:"
				+ p.getProperty("java.library.path"));
		System.err.println("-cp " + p.getProperty("java.class.path"));
	}

	public static void dbgPt() {
		System.out.println("///////DDDDEEEEEBBBBUUUUGGGG");
	}
}