/*
* $Id$
*
* 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.driver.block;
import java.nio.ByteBuffer;
import org.jnode.driver.Device;
import org.jnode.driver.Driver;
import org.jnode.driver.InvalidDriverException;
/**
* This class is a device wrapping a simple byte array
*
* @author epr
*/
public class ByteArrayDevice extends Device implements BlockDeviceAPI {
private byte[] array;
/**
* Create a new ByteArrayDevice wrapping the given array
*
* @param array
*/
public ByteArrayDevice(byte[] array) {
super(null, "byte-array" + System.currentTimeMillis());
this.array = array;
registerAPI(BlockDeviceAPI.class, this);
}
/**
* @return The length
* @see org.jnode.driver.block.BlockDeviceAPI#getLength()
*/
public long getLength() {
return array.length;
}
/**
* (non-Javadoc)
*
* @see org.jnode.driver.block.BlockDeviceAPI#read(long, java.nio.ByteBuffer)
*/
public void read(long devOffset, ByteBuffer dest) {
//System.arraycopy(array, (int)devOffset, dest, destOffset, length);
dest.put(this.array, (int) devOffset, dest.remaining());
}
/**
* (non-Javadoc)
*
* @see org.jnode.driver.block.BlockDeviceAPI#write(long, java.nio.ByteBuffer)
*/
public void write(long devOffset, ByteBuffer src) {
//System.arraycopy(src, srcOffset, array, (int)devOffset, length);
src.get(this.array, (int) devOffset, src.remaining());
}
/**
* @see org.jnode.driver.block.BlockDeviceAPI#flush()
*/
public void flush() {
/* Nothing to do here */
}
/**
* @param driver
* @throws InvalidDriverException
* @see org.jnode.driver.Device#setDriver(org.jnode.driver.Driver)
*/
public void setDriver(Driver driver) throws InvalidDriverException {
throw new InvalidDriverException("No driver allowed here.");
}
}