/*
* $Id$
*
* 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.apps.vmware.disk;
import java.io.File;
import java.io.IOException;
import java.nio.ByteBuffer;
import org.apache.log4j.Logger;
import org.jnode.apps.vmware.disk.descriptor.Descriptor;
import org.jnode.apps.vmware.disk.handler.ExtentFactory;
import org.jnode.apps.vmware.disk.handler.FileDescriptor;
import org.jnode.apps.vmware.disk.handler.IOHandler;
import org.jnode.apps.vmware.disk.handler.UnsupportedFormatException;
/**
* Wrote from the 'Virtual Disk Format 1.0' specifications (from VMWare).
*
* @author Fabien DUMINY (fduminy at jnode dot org)
*
*/
public class VMWareDisk {
private static final Logger LOG = Logger.getLogger(VMWareDisk.class);
private final Descriptor descriptor;
private final IOHandler handler;
private final long length;
/**
*
* @param file
* @throws IOException
* @throws UnsupportedFormatException
*/
public VMWareDisk(File file) throws IOException, UnsupportedFormatException {
FileDescriptor fd = IOUtils.readFileDescriptor(file);
ExtentFactory factory = fd.getExtentFactory();
this.handler = factory.createIOHandler(fd);
this.descriptor = fd.getDescriptor();
this.length = handler.getNbSectors() * IOHandler.SECTOR_SIZE;
LOG.debug("handler for file " + file.getName() + " : " + handler.getClass().getName());
}
/**
*
* @param sector
* @param data
* @throws IOException
*/
public void write(long sector, ByteBuffer data) throws IOException {
handler.write(sector, data);
}
/**
*
* @param sector
* @param data
* @throws IOException
*/
public void read(long sector, ByteBuffer data) throws IOException {
handler.read(sector, data);
}
/**
*
* @throws IOException
*/
public void flush() throws IOException {
handler.flush();
}
/**
*
* @return
*/
public long getLength() {
return length;
}
/**
*
* @return
*/
public Descriptor getDescriptor() {
return descriptor;
}
}