net.famzangl.minecraft.minebot.settings.MinebotDirectoryCreator.java Source code

Introduction

Here is the source code for net.famzangl.minecraft.minebot.settings.MinebotDirectoryCreator.java

Source

/*******************************************************************************
 * This file is part of Minebot.
 *
 * Minebot is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Minebot is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Minebot.  If not, see <http://www.gnu.org/licenses/>.
 *******************************************************************************/
package net.famzangl.minecraft.minebot.settings;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.security.CodeSource;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

import org.apache.commons.io.IOUtils;

/**
 * Creates the Minebot directory structure. This includes the files:
 * 
 * <pre>
 * minebot/
 *   minebot.properties
 *   build/
 *     *.build
 *   scripts/
 *     *.js
 *   README.txt
 * </pre>
 * 
 * @author michael
 *
 */
public class MinebotDirectoryCreator {

    private static final String BASE = "net/famzangl/minecraft/minebot/settings/minebot/";

    public File createDirectory(File dir) throws IOException {
        CodeSource src = MinebotDirectoryCreator.class.getProtectionDomain().getCodeSource();
        if (src != null) {
            URL jar = src.getLocation();
            if (jar.getFile().endsWith("class") && !jar.getFile().contains(".jar!")) {
                System.out.println("WARNING: Using the dev directory for settings.");
                // We are in a dev enviroment.
                return new File(new File(jar.getFile()).getParentFile(), "minebot");
            }
            if (dir.isFile()) {
                dir.delete();
            }

            dir.mkdirs();
            ZipInputStream zip = new ZipInputStream(jar.openStream());
            try {
                ZipEntry zipEntry;
                while ((zipEntry = zip.getNextEntry()) != null) {
                    String name = zipEntry.getName();
                    if (name.startsWith(BASE)) {
                        String[] localName = name.substring(BASE.length()).split("/");
                        File currentDir = dir;
                        for (int i = 0; i < localName.length; i++) {
                            currentDir = new File(currentDir, localName[i]);
                            currentDir.mkdir();
                        }
                        File copyTo = new File(currentDir, localName[localName.length - 1]);
                        extract(zip, copyTo);
                    }
                }
            } finally {
                zip.close();
            }
            return dir;
        } else {
            throw new IOException("Could not find minebot directory to extract.");
        }
    }

    private void extract(ZipInputStream zip, File copyTo) {
        if (!copyTo.exists()) {
            System.out.println("Extracting minebot settings: " + copyTo.getAbsolutePath());

            InputStream source = zip;
            FileOutputStream destination = null;

            try {
                copyTo.createNewFile();
                destination = new FileOutputStream(copyTo);
                IOUtils.copy(source, destination);
            } catch (final IOException e) {
                System.err.println("Error copying default settings.");
                copyTo.delete();
            } catch (final NullPointerException e) {
                System.err.println("Could not find default settings.");
                copyTo.delete();
            } finally {
                if (destination != null) {
                    try {
                        destination.close();
                    } catch (final IOException e) {
                    }
                }
            }
        }
    }
}