UnZip.java

package openlauncher;

import org.apache.commons.io.IOUtils;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;

public class UnZip {

	public static void unZip(File file, File outputFolder) throws IOException {
		ZipFile zipFile = new ZipFile(file);
		Enumeration<? extends ZipEntry> entries = zipFile.entries();
		while (entries.hasMoreElements()) {
			ZipEntry entry = entries.nextElement();
			File entryDestination = new File(outputFolder, entry.getName());
			entryDestination.getParentFile().mkdirs();
			if (entry.isDirectory())
				entryDestination.mkdirs();
			else {
				InputStream in = zipFile.getInputStream(entry);
				OutputStream out = new FileOutputStream(entryDestination);
				IOUtils.copy(in, out);
				IOUtils.closeQuietly(in);
				IOUtils.closeQuietly(out);
			}
		}
	}
}