public byte[] GetBuffer(Long id)
        throws IOException
    {
        FS_Function fs_fsi = FS_Function.getInstance();
        byte buffer[] = (byte[])null;
        if(id.longValue() != -1L && (buffer = fs_fsi.getBuffer(id.longValue())) != null)
        {
            System.out.println((new StringBuilder("File ID:")).append(id).append("Found").toString());
            return buffer;
        } 
        else
        {
            System.out.println((new StringBuilder("File ID:")).append(id).append("not exist").toString());
            return null;
        }
    }