/*
* $Id$
*
* 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.ntfs;
import java.io.IOException;
import java.util.Iterator;
import org.apache.log4j.Logger;
import org.jnode.fs.FSDirectory;
import org.jnode.fs.FSDirectoryId;
import org.jnode.fs.FSEntry;
import org.jnode.fs.FileSystem;
import org.jnode.fs.ReadOnlyFileSystemException;
import org.jnode.fs.ntfs.index.NTFSIndex;
/**
* @author vali
* @author Ewout Prangsma (epr@users.sourceforge.net)
*/
public class NTFSDirectory implements FSDirectory, FSDirectoryId {
private static final Logger log = Logger.getLogger(NTFSDirectory.class);
private final NTFSIndex index;
private final NTFSFileSystem fs;
/**
* The ID for this directory.
*/
private final String id;
/**
* Initialize this instance.
*
* @param record the file record.
*/
public NTFSDirectory(NTFSFileSystem fs, FileRecord record) throws IOException {
this.fs = fs;
this.index = new NTFSIndex(record);
id = Long.toString(record.getReferenceNumber());
}
@Override
public String getDirectoryId() {
return id;
}
/**
* Gets an iterator to iterate over all entries of this directory.
*/
public Iterator<FSEntry> iterator() {
return new DirectoryEntryIterator(fs, index);
}
/**
* Gets an entry with a given name.
*/
public FSEntry getEntry(String name) {
log.debug("getEntry(" + name + ")");
for (Iterator<FSEntry> it = this.iterator(); it.hasNext(); ) {
final NTFSEntry entry = (NTFSEntry) it.next();
if (entry.getName().equals(name)) {
return entry;
}
}
return null;
}
@Override
public FSEntry getEntryById(String id) throws IOException {
FileRecord fileRecord = fs.getNTFSVolume().getMFT().getRecord(Long.parseLong(id));
return new NTFSEntry(fs, fileRecord);
}
/**
*
*/
public FSEntry addFile(String name) throws IOException {
throw new ReadOnlyFileSystemException();
}
/**
*
*/
public FSEntry addDirectory(String name) throws IOException {
throw new ReadOnlyFileSystemException();
}
/**
* Remove the entry with the given name from this directory.
*/
public void remove(String name) throws IOException {
throw new ReadOnlyFileSystemException();
}
/**
* Is this entry valid.
*/
public boolean isValid() {
return true;
}
/**
*
*/
public FileSystem<?> getFileSystem() {
return fs;
}
/**
* Save all dirty (unsaved) data to the device
*
* @throws IOException
*/
public void flush() throws IOException {
//TODO
}
}