/*
Nord Modular Midi Protocol 3.03 Library
Copyright (C) 2003-2006 Marcus Andersson
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; either version 2 of the License, or
(at your option) any later version.
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 net.sf.nmedit.jnmprotocol.utils;
import javax.sound.midi.InvalidMidiDataException;
import javax.sound.midi.SysexMessage;
/**
* Sysex message which avoids copying the byte[] array passed to the constructor.
*/
public class FastSysexMessage extends SysexMessage
{
// make the (byte[]) constructor public avoids
// - new SysexMessage() creates a unused byte array
// - setMessage creates another byte array where the data is copied to
public FastSysexMessage(byte[] data)throws InvalidMidiDataException
{
super(data);
if (data.length==0 || (((data[0] & 0xFF) != 0xF0) && ((data[0] & 0xFF) != 0xF7)))
{
super.setMessage(data, data.length); // will throw Exception
}
}
// overwrite this method so that the original data array,
// which is shared among all transmitters, cannot be modified
public void setMessage(byte[] data, int length) throws InvalidMidiDataException
{
if ((data.length == 0) || (((data[0] & 0xFF) != 0xF0) && ((data[0] & 0xFF) != 0xF7)))
{
super.setMessage(data, data.length); // will throw Exception
}
this.length = length;
this.data = new byte[this.length];
System.arraycopy(data, 0, this.data, 0, length);
}
}