source: AE/installer2/src/net/oni2/aeinstaller/backend/oni/Installer.java@ 596

package net.oni2.aeinstaller.backend.oni;

import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.util.Scanner;

import net.oni2.aeinstaller.backend.Paths;

import org.apache.commons.io.FileUtils;

/**
 * @author Christian Illy
 */
public class Installer {
        /**
         * @return Is Edition Core initialized
         */
        public static boolean isEditionInitialized() {
                File editionGDF = Paths.getEditionGDF();
                File vanillaDats = Paths.getVanillaGDF();
                return editionGDF.exists() && vanillaDats.exists();
        }

        private static void createEmptyPath(File path) throws IOException {
                if (path.exists())
                        FileUtils.deleteDirectory(path);
                path.mkdirs();
        }

        /**
         * Initializes the Edition core
         */
        public static void initializeEdition() {
                File init = new File(Paths.getTempPath(), "init");
                try {
                        createEmptyPath(Paths.getEditionGDF());
                        createEmptyPath(Paths.getVanillaOnisPath());
                        createEmptyPath(init);

                        for (File f : Paths.getVanillaGDF().listFiles(new FilenameFilter() {
                                @Override
                                public boolean accept(File dir, String name) {
                                        return name.endsWith(".dat");
                                }
                        })) {
                                String levelName = f.getName().substring(0,
                                                f.getName().indexOf('.'));
                                int levelNumber = -1;

                                Scanner fi = new Scanner(levelName);
                                fi.useDelimiter("[^\\p{Alnum}]");
                                while (fi.hasNextInt()) {
                                        levelNumber = fi.nextInt();
                                }

                                OniSplit.export(new File(init, levelName), f);
                        }

                        // TODO: FileUtils.deleteDirectory(Paths.getEditionGDF());
                } catch (IOException e) {
                        e.printStackTrace();
                }
        }
}