/*

 * Copyright (c) 2015, 2018, 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

 * questions.

 */

import java.util.LinkedList;

import java.util.List;

class FilterFactory {

    final LinkedList<Class<? extends HeaderFilter>> filterClasses = new LinkedList<>();

    public void addFilter(Class<? extends HeaderFilter> type) {

        filterClasses.add(type);

    }

    List<HeaderFilter> getFilterChain() {

        List<HeaderFilter> l = new LinkedList<>();

        for (Class<? extends HeaderFilter> clazz : filterClasses) {

            try {

                // Requires a public no arg constructor.

                HeaderFilter headerFilter = clazz.getConstructor().newInstance();

                l.add(headerFilter);

            } catch (ReflectiveOperationException e) {

                throw new InternalError(e);

            }

        }

        return l;

    }

}