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 // Gets directory name and recognizes format of files in that directory
public static void getFileFormats(String directorPath)
{
    try
    {
        // path to the document
        directorPath = Common.mapSourceFilePath(directorPath);
        File dir = new File(directorPath);
        // get array of files in specific directory
        File[] files = dir.listFiles();

        for (File path : files)
        {
            // recognize file by it's signature
            FormatBase format = FormatFactory.recognizeFormat(path.getAbsolutePath());

            if (format != null)
            {
                System.out.printf("File: %s, type: %s", path.getName(), format.getType());
            }
        }
    }
    catch (Exception e)
    {
        e.printStackTrace();
    }
}