/* This file is part of the db4o object database http://www.db4o.com
Copyright (C) 2004 - 2011 Versant Corporation http://www.versant.com
db4o is free software; you can redistribute it and/or modify it under
the terms of version 3 of the GNU General Public License as published
by the Free Software Foundation.
db4o is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with this program. If not, see http://www.gnu.org/licenses/. */
package com.db4o.internal;
import com.db4o.ext.*;
import com.db4o.internal.freespace.*;
/**
* @exclude
*/
public class SystemInfoFileImpl implements SystemInfo{
private LocalObjectContainer _file;
public SystemInfoFileImpl(LocalObjectContainer file){
_file = file;
}
public int freespaceEntryCount() {
if(! hasFreespaceManager()){
return 0;
}
return freespaceManager().slotCount();
}
private boolean hasFreespaceManager() {
return freespaceManager() != null;
}
private FreespaceManager freespaceManager() {
return _file.freespaceManager();
}
public long freespaceSize() {
if(! hasFreespaceManager()){
return 0;
}
long blockSize = _file.blockSize();
long blockedSize = freespaceManager().totalFreespace();
return blockSize * blockedSize;
}
public long totalSize() {
return _file.fileLength();
}
}