opsu-dance/src/itdelatrisu/opsu/OszUnpacker.java
Jeffrey Han b69ff68d7c Added methods to delete songs and song groups.
- OsuGroupList.get().deleteSongGroup() will delete a song group from the list.
- OsuGroupList.get().deleteSong() will delete an individual song from the list (must be expanded), and will delete the song group if there are no remaining songs in the group.
- If possible, deleted beatmap files are moved to system trash (using JNA); otherwise, they are deleted immediately.  This is done through Utils.deleteToTrash().

Signed-off-by: Jeffrey Han <itdelatrisu@gmail.com>
2015-02-12 02:27:33 -05:00

117 lines
3.2 KiB
Java

/*
* opsu! - an open-source osu! client
* Copyright (C) 2014, 2015 Jeffrey Han
*
* opsu! 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.
*
* opsu! 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 opsu!. If not, see <http://www.gnu.org/licenses/>.
*/
package itdelatrisu.opsu;
import java.io.File;
import java.io.FilenameFilter;
import java.util.ArrayList;
import java.util.List;
import net.lingala.zip4j.core.ZipFile;
import net.lingala.zip4j.exception.ZipException;
/**
* Unpacker for OSZ (ZIP) archives.
*/
public class OszUnpacker {
/** The index of the current file being unpacked. */
private static int fileIndex = -1;
/** The total number of directories to parse. */
private static File[] files;
// This class should not be instantiated.
private OszUnpacker() {}
/**
* Invokes the unpacker for each OSZ archive in a root directory.
* @param root the root directory
* @param dest the destination directory
* @return an array containing the new (unpacked) directories, or null
* if no OSZs found
*/
public static File[] unpackAllFiles(File root, File dest) {
List<File> dirs = new ArrayList<File>();
// find all OSZ files
files = root.listFiles(new FilenameFilter() {
@Override
public boolean accept(File dir, String name) {
return name.toLowerCase().endsWith(".osz");
}
});
if (files == null || files.length < 1) {
files = null;
return new File[0];
}
// unpack OSZs
for (File file : files) {
fileIndex++;
String dirName = file.getName().substring(0, file.getName().lastIndexOf('.'));
File songDir = new File(dest, dirName);
if (!songDir.isDirectory()) {
songDir.mkdir();
unzip(file, songDir);
file.delete(); // delete the OSZ when finished
dirs.add(songDir);
}
}
fileIndex = -1;
files = null;
return dirs.toArray(new File[dirs.size()]);
}
/**
* Extracts the contents of a ZIP archive to a destination.
* @param file the ZIP archive
* @param dest the destination directory
*/
private static void unzip(File file, File dest) {
try {
ZipFile zipFile = new ZipFile(file);
zipFile.extractAll(dest.getAbsolutePath());
} catch (ZipException e) {
ErrorHandler.error(String.format("Failed to unzip file %s to dest %s.",
file.getAbsolutePath(), dest.getAbsolutePath()), e, false);
}
}
/**
* Returns the name of the current file being unpacked, or null if none.
*/
public static String getCurrentFileName() {
if (files == null || fileIndex == -1)
return null;
return files[fileIndex].getName();
}
/**
* Returns the progress of file unpacking, or -1 if not unpacking.
* @return the completion percent [0, 100] or -1
*/
public static int getUnpackerProgress() {
if (files == null || fileIndex == -1)
return -1;
return (fileIndex + 1) * 100 / files.length;
}
}