FileUtils.java

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package br.uff.ic.gems.peixeespadacliente.utils;

import java.io.*;

/**
 *
 * @author GEMS
 */
public class FileUtils {

    public static boolean deleteDir(File dir) {

        if (dir.exists()) {
            File[] files = dir.listFiles();
            for (int i = 0; i < files.length; i++) {
                if (files[i].isDirectory()) {
                    deleteDir(files[i]);
                } else {
                    files[i].delete();
                }
            }
        }
        return (dir.delete());
    }

    public static void copyDirectory(File sourceLocation, File targetLocation) throws IOException {
        if (sourceLocation.isDirectory()) {
            if (!targetLocation.exists()) {
                targetLocation.mkdirs();
            }
            String[] children = sourceLocation.list();
            for (int i = 0; i < children.length; i++) {
                copyDirectory(new File(sourceLocation, children[i]),
                        new File(targetLocation, children[i]));
            }
        } else {

            InputStream in = new FileInputStream(sourceLocation);
            OutputStream out = new FileOutputStream(targetLocation);

            // Copy the bits from instream to outstream
            byte[] buf = new byte[1024];
            int len;
            while ((len = in.read(buf)) > 0) {
                out.write(buf, 0, len);
            }
            in.close();
            out.close();
        }
    }
}