/*

 * Copyright (c) 2003, 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.  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

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 */

package javax.net.ssl;

import java.util.*;

import java.security.KeyStore.*;

/**

 * A parameters object for X509KeyManagers that encapsulates a List

 * of KeyStore.Builders.

 *

 * @see java.security.KeyStore.Builder

 * @see X509KeyManager

 *

 * @author  Andreas Sterbenz

 * @since   1.5

 */

public class KeyStoreBuilderParameters implements ManagerFactoryParameters {

    private final List<Builder> parameters;

    /**

     * Construct new KeyStoreBuilderParameters from the specified

     * {@linkplain java.security.KeyStore.Builder}.

     *

     * @param builder the Builder object

     * @exception NullPointerException if builder is null

     */

    public KeyStoreBuilderParameters(Builder builder) {

        parameters = Collections.singletonList(Objects.requireNonNull(builder));

    }

    /**

     * Construct new KeyStoreBuilderParameters from a List

     * of {@linkplain java.security.KeyStore.Builder}s. Note that the list

     * is cloned to protect against subsequent modification.

     *

     * @param parameters the List of Builder objects

     * @exception NullPointerException if parameters is null

     * @exception IllegalArgumentException if parameters is an empty list

     */

    public KeyStoreBuilderParameters(List<Builder> parameters) {

        if (parameters.isEmpty()) {

            throw new IllegalArgumentException();

        }

        this.parameters = Collections.unmodifiableList(

            new ArrayList<Builder>(parameters));

    }

    /**

     * Return the unmodifiable List of the

     * {@linkplain java.security.KeyStore.Builder}s

     * encapsulated by this object.

     *

     * @return the unmodifiable List of the

     * {@linkplain java.security.KeyStore.Builder}s

     * encapsulated by this object.

     */

    public List<Builder> getParameters() {

        return parameters;

    }

}