br.mark(4);
char[] buf = new char[5];
br.read(buf);
if ((new String(buf)).startsWith(PMESH_BINARY_MAGIC_NUMBER)) {
br.close();
binarydoc = new BinaryDocument();
binarydoc.setStream(sg.getAtomDataServer().getBufferedInputStream(
fileName), (buf[4] == '\0'));
return true;
}
br.reset();