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Smart Card Utils for Better Access.

There is a newer version: 0.0.20

/*
 * This file is part of the SCUBA smart card framework.
 *
 * 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
 *
 * Copyright (C) 2009 - 2015 The SCUBA team.
 *
 * $Id: WrappingCardService.java 246 2015-04-09 08:13:52Z martijno $
 */

package net.sf.scuba.smartcards;

/**
 * CardService for easy wrapping of APDU messages.
 * 
 * @author Pim Vullers ([email protected])
 *
 * @version $Revision: 246 $
 */
public class WrappingCardService extends CardService {

	private static final long serialVersionUID = -1872209495542386286L;

	private CardService service;
	private APDUWrapper wrapper;
	private boolean enabled;
	
	public WrappingCardService(CardService service, APDUWrapper wrapper) {
		this.service = service;
		this.wrapper = wrapper;
	}

	public void open() throws CardServiceException {
		service.open();
	}

	public boolean isOpen() {
		return service.isOpen();
	}

	public ResponseAPDU transmit(CommandAPDU capdu)
	throws CardServiceException {
		if (isEnabled()) {
			ResponseAPDU rapdu = service.transmit(wrapper.wrap(capdu));
			return wrapper.unwrap(rapdu, rapdu.getBytes().length);
		} else {
			return service.transmit(capdu);
		}
	}
	
	public byte[] getATR() throws CardServiceException {
		return service.getATR();
	}

	public void close() {
		service.close();
	}
	
	public void enable() {
		enabled = true;
	}
	
	public boolean isEnabled() {
		return enabled;
	}
	
	public void disable() {
		enabled = false;
	}
}