/*
* $Id$
*
* Copyright (C) 2003-2014 JNode.org
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; If not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.jnode.fs.jifs;
import java.io.IOException;
import org.jnode.driver.Device;
import org.jnode.fs.FileSystem;
import org.jnode.fs.FileSystemException;
import org.jnode.fs.jifs.directories.JIFSDrootDir;
/**
* @author Andreas H\u00e4nel
*/
public class JIFileSystem implements FileSystem<JIFSDirectory> {
private JIFSDirectory rootDir = null;
private Device device;
private final JIFileSystemType type;
/**
* Constructor for JIFileSystem in specified readOnly mode
*/
public JIFileSystem(Device device, boolean readOnly, JIFileSystemType type) throws FileSystemException {
if (readOnly == false) {
throw new FileSystemException("JIFS can not be created as writable...");
}
this.device = device;
this.type = type;
rootDir = new JIFSDrootDir(device.getId());
}
public final JIFileSystemType getType() {
return type;
}
/**
* Is the filesystem mounted in readonly mode ?
*/
public boolean isReadOnly() {
// always readOnly
return true;
}
public void close() {
// nothing to do
}
public boolean isClosed() {
return false;
}
public Device getDevice() {
return device;
}
/**
* Gets the root entry of this filesystem. This is usually a director, but this is not required.
*
* @return rootDir
*/
public JIFSDirectory getRootEntry() {
return rootDir;
}
public long getFreeSpace() {
return -1;
}
public long getTotalSpace() {
return -1;
}
public long getUsableSpace() {
return -1;
}
@Override
public String getVolumeName() throws IOException {
return device.getShortDescription();
}
}