xref: /openjdk9/jdk/test/java/security/testlibrary/ProvidersSnapshot.java

/*
 * Copyright (c) 2011, 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.
 *
 * 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
 * questions.
 */

import java.security.Provider;
import java.security.Security;

public class ProvidersSnapshot {

    private Provider[] oldProviders;

    private ProvidersSnapshot() {
        oldProviders = Security.getProviders();
    }

    public static ProvidersSnapshot create() {
        return new ProvidersSnapshot();
    }

    public void restore() {
        Provider[] newProviders = Security.getProviders();
        for (Provider p: newProviders) {
            Security.removeProvider(p.getName());
        }
        for (Provider p: oldProviders) {
            Security.addProvider(p);
        }
    }
}