/**
* Copyright 2011-2012 Adrian Stabiszewski, as@nfctools.org
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.nfctools.spi.acs;
import java.io.IOException;
import javax.smartcardio.Card;
import javax.smartcardio.CardException;
import javax.smartcardio.CardTerminal;
import org.nfctools.mf.MfCardListener;
import org.nfctools.mf.MfException;
import org.nfctools.mf.MfReaderWriter;
import org.nfctools.mf.card.MfCard;
public class PollingCardScanner implements Runnable {
private CardTerminal cardTerminal;
private MfCardListener cardListener;
private MfReaderWriter readerWriter;
public PollingCardScanner(CardTerminal cardTerminal, MfCardListener cardListener, MfReaderWriter readerWriter) {
this.cardTerminal = cardTerminal;
this.cardListener = cardListener;
this.readerWriter = readerWriter;
}
@Override
public void run() {
while (!Thread.interrupted()) {
try {
waitForCard(1000);
while (cardTerminal.isCardPresent()) {
Thread.sleep(500);
}
}
catch (Exception e) {
throw new RuntimeException(e);
}
}
}
public boolean waitForCard(int timeout) throws CardException, MfException, IOException, InterruptedException {
if (cardTerminal.waitForCardPresent(timeout)) {
Card card = cardTerminal.connect("*");
CardResolver cardResolver = new CardResolver();
MfCard mfCard = cardResolver.resolvecard(card);
cardListener.cardDetected(mfCard, readerWriter);
return true;
}
else
return false;
}
}