JDK8/Java8源码在线阅读

/*
 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
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 */

package sun.security.smartcardio;

import java.security.*;

import javax.smartcardio.*;

/**
 * Provider object for PC/SC.
 *
 * @since   1.6
 * @author  Andreas Sterbenz
 */
public final class SunPCSC extends Provider {

    private static final long serialVersionUID = 6168388284028876579L;

    public SunPCSC() {
        super("SunPCSC", 1.8d, "Sun PC/SC provider");
        AccessController.doPrivileged(new PrivilegedAction<Void>() {
            public Void run() {
                put("TerminalFactory.PC/SC", "sun.security.smartcardio.SunPCSC$Factory");
                return null;
            }
        });
    }

    public static final class Factory extends TerminalFactorySpi {
        public Factory(Object obj) throws PCSCException {
            if (obj != null) {
                throw new IllegalArgumentException
                    ("SunPCSC factory does not use parameters");
            }
            // make sure PCSC is available and that we can obtain a context
            PCSC.checkAvailable();

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