private ApplicationConfiguration applicationConfiguration;

    private static Logger log = Logger.getLogger(FileSystemUtilsImpl.class);

    public void setApplicationConfiguration(ApplicationConfiguration applicationConfiguration) {

        this.applicationConfiguration = applicationConfiguration;

    }

    @Override

    public long calculateDirectorySize(File file) throws IllegalArgumentException, IOException {

        return FileUtils.sizeOfDirectory(file);

    }

    @Override

    public void unpackArchive(File archive, File path) throws IOException {

        try {

            ArchiveDecompressor dec = applicationConfiguration.getArchiveDecompressor(archive);

            FileUtils.forceMkdir(path);

            dec.unpackFiles(archive, path);

        } catch (Exception e) {

            throw new IOException(e.getMessage());

        }

    }

    @Override

    public InputStream getThesisArchiveInputStream(File thesisDir) throws IOException, InterruptedException {

        log.debug("Pokus o stazeni:" + thesisDir.getAbsolutePath());

        if (thesisDir == null || !thesisDir.exists() || !thesisDir.canRead()) {

            throw new IOException("P�edan� soubor je neplatn�, nebo neexistuje, nebo k n�mu nejsou dostate�n� opr�vn�n�.");

        }

        File f = File.createTempFile("_file", ".zip"); //docasny soubor v adresari tomcatu

        f.delete(); //musim smazat

//        de.schlichtherle.io.File tempArchiveFile = new de.schlichtherle.io.File(f + "/" + thesisDir.getName()); //docasny soubor truezipu a adresar s loginem v nem

//        boolean result = tempArchiveFile.copyAllFrom(thesisDir); //zkusim zabalit. v result je vysledek operace

//        de.schlichtherle.io.File.umount(); //odmontuju

//        log.debug("Zabaleno: " + result);

//        if (!result) //pokud se nezabalilo, vrat error

//            throw new IOException("Nebylo mo�n� zabalit pr�ci.");

        Runtime r = Runtime.getRuntime();

        String command = "zip -r " + f.getAbsolutePath() + " " + thesisDir.getName();

        Process p = r.exec(command, null, thesisDir.getParentFile());

        new ProcessOutputReader(p.getInputStream()).start();

        new ProcessOutputReader(p.getErrorStream()).start();

        int result = p.waitFor();

        return new FileInputStream(f);

    }

    @Override

    public boolean isPathSafe(String pathName) {

        if (pathName != null)

            for (String d : pathName.split("[/[\\\\]]"))

                if (d.equals("..")) return false;

        return true;

    }

    @Override

    public boolean deleteDirectory(String path) {

        File f = new File(path);

        if (!f.exists() || !f.isDirectory() || !f.canWrite())

            return false;

        try {

            FileUtils.deleteDirectory(f);

        } catch (IOException e) {

            return false;

        }

        return true;

    }

}