private String doDeleteFile(long fileId) throws IOException {
if (isOpen(fileId)) truncateFile(fileId);
final OFileClassic fileClassic = files.remove(fileId);
String name = null;
if (fileClassic != null) {
name = fileClassic.getName();
if (fileClassic.exists()) fileClassic.delete();
}
return name;
}
private void openFile(OFileClassic fileClassic) throws IOException {
if (fileClassic.exists()) {
if (!fileClassic.isOpen()) fileClassic.open();
} else fileClassic.create(-1);
}