/*
	Copyright Jim Brain and Brain Innovations, 2005.

	This file is part of QLink.

	QLink 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.

	QLink 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 QLink; if not, write to the Free Software
	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

	@author Jim Brain
	Created on Jul 14, 2005
	
 */
package org.jbrain.qlink.cmd;

public abstract class AbstractCheckedCommand extends AbstractCommand {
	
	// you call this to create a command
	public AbstractCheckedCommand(byte cmd) {
		super(cmd);
	}
	
	/**
	 * @param cmd_ping
	 * @param data
	 * @param start
	 * @param len
	 */
	// you call this on receipt of data
	public AbstractCheckedCommand(byte[] data, int start, int len) throws CRCException {
		super(data,start,len);
		if(_iReportedCRC!=_iCalculatedCRC) {
			throw new CRCException(_iReportedCRC + "!=" + _iCalculatedCRC);
		}
	}
}