source: java/installer2/src/net/oni2/aeinstaller/backend/oni/OniLauncher.java

package net.oni2.aeinstaller.backend.oni;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Vector;

import org.apache.commons.io.FileUtils;

import net.oni2.aeinstaller.backend.CaseInsensitiveFile;
import net.oni2.aeinstaller.backend.Paths;
import net.oni2.platformtools.PlatformInformation;
import net.oni2.platformtools.PlatformInformation.Platform;
import net.oni2.platformtools.applicationinvoker.ApplicationInvoker;
import net.oni2.platformtools.applicationinvoker.EExeType;
import net.oni2.platformtools.applicationinvoker.ERuntimeNotInstalledException;

/**
 * @author Christian Illy
 */
public class OniLauncher {

        private static File getOniExe() throws FileNotFoundException {
                File exe = null;
                switch (PlatformInformation.getPlatform()) {
                        case WIN:
                        case LINUX:
                                exe = new File(Paths.getEditionBasePath(), "Oni.exe");
                                break;
                        case MACOS:
                                exe = new File(Paths.getEditionBasePath(),
                                                "Oni.app/Contents/MacOS/Oni");
                                break;
                        default:
                }
                if (exe.exists())
                        return exe;
                else
                        throw new FileNotFoundException("Oni's executable was not found");
        }

        private static EExeType getOniExeType() {
                switch (PlatformInformation.getPlatform()) {
                        case MACOS:
                                return EExeType.OSBINARY;
                        default:
                                return EExeType.WINEXE;
                }
        }
        
        private static Vector<String> getLaunchArgs () {
                Vector<String> res = new Vector<String>();
                if (PlatformInformation.getPlatform() == Platform.MACOS) {
                        File launchArgs = CaseInsensitiveFile.getCaseInsensitiveFile(Paths.getEditionBasePath(), "launch_args.txt");
                        if (launchArgs.exists()) {
                                try {
                                        String[] argsStrings = FileUtils.readFileToString(launchArgs).split(" ");
                                        for (int i = 0; i < argsStrings.length; i++) {
                                                argsStrings [i] = argsStrings [i].trim();
                                                if (argsStrings [i].length() > 0) {
                                                        res.add(argsStrings [i]);
                                                }
                                        }
                                } catch (IOException e) {
                                        e.printStackTrace();
                                }
                        }
                }
                return res;
        }

        /**
         * @param windowed
         *            Run in windowed mode
         * @throws FileNotFoundException
         *             If Oni's executable was not found
         * @throws ERuntimeNotInstalledException
         *             If Linux and Wine not found
         */
        public static void launch(boolean windowed) throws FileNotFoundException,
                        ERuntimeNotInstalledException {
                File exe = getOniExe();
                Vector<String> params = getLaunchArgs();
                params.add("-debugfiles");
                if (windowed)
                        params.add("-noswitch");
                else
                        params.remove("-noswitch");
                ApplicationInvoker.execute(getOniExeType(), Paths.getEditionBasePath(),
                                exe, params, true);
        }

}