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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * 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.

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 * 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,

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package sun.security.provider.certpath;

import java.util.Date;

import java.util.Set;

import java.security.cert.TrustAnchor;

import java.security.cert.X509CertSelector;

import java.security.cert.X509CRLSelector;

import sun.security.x509.GeneralNameInterface;

/**

 * Helper class that allows access to JDK specific known-public methods in the

 * java.security.cert package. It relies on a subclass in the

 * java.security.cert packages that is initialized before any of these methods

 * are called (achieved via static initializers).

 *

 * The methods are made available in this fashion for performance reasons.

 *

 * @author Andreas Sterbenz

 */

public abstract class CertPathHelper {

    /**

     * Object used to tunnel the calls. Initialized by CertPathHelperImpl.

     */

    protected static CertPathHelper instance;

    protected CertPathHelper() {

        // empty

    }

    protected abstract void implSetPathToNames(X509CertSelector sel,

            Set<GeneralNameInterface> names);

    protected abstract void implSetDateAndTime(X509CRLSelector sel, Date date, long skew);

    protected abstract boolean implIsJdkCA(TrustAnchor anchor);

    static void setPathToNames(X509CertSelector sel,

            Set<GeneralNameInterface> names) {

        instance.implSetPathToNames(sel, names);

    }

    public static void setDateAndTime(X509CRLSelector sel, Date date, long skew) {

        instance.implSetDateAndTime(sel, date, skew);

    }

    public static boolean isJdkCA(TrustAnchor anchor) {

        return (anchor == null) ? false : instance.implIsJdkCA(anchor);

    }

}