/**
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program 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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.bigdata.io;
import java.io.EOFException;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.ByteBuffer;
/**
* Writes bytes onto a {@link ByteBuffer}.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id$
*/
public class ByteBufferOutputStream extends OutputStream {
final protected ByteBuffer buf;
final public ByteBuffer getByteBuffer() {
return buf;
}
public ByteBufferOutputStream(ByteBuffer buf) {
assert buf != null;
this.buf = buf;
}
/**
* Write a byte on the buffer. The {@link ByteBuffer#position()} is advanced
* as a side effect.
*
* @param b
* A byte whose value is in [-128:127].
*
* @exception EOFException
* if the buffer would overflow.
*/
public void write(int b) throws IOException {
if (buf.remaining() == 0) {
throw new EOFException();
}
// buf.put( (byte) (0x000000ff & b) );
buf.put((byte) b);
}
/**
* Write an array of bytes on the buffer. The {@link ByteBuffer#position()}
* is advanced as a side effect.
*
* @param b
* the data.
* @param off
* the start offset in the data.
* @param len
* the number of bytes to write.
*
* @exception EOFException
* if the buffer would overflow.
*
*/
public void write(byte b[], int off, int len) throws IOException {
if(buf.remaining()<len) {
throw new EOFException();
}
buf.put(b,off,len);
}
}