/*

 * Copyright (c) 2019, 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.util.Set;

import java.util.function.Predicate;

import java.util.regex.Pattern;

import java.util.stream.Collectors;

/**

 * Launched by the test ServiceBinding to test modules in the boot layer.

 */

public class TestBootLayer {

    public static void main(String[] args) throws Exception {

        Pattern splitter = Pattern.compile(",");

        // the names of all modules in the boot layer

        Set<String> modules = ModuleLayer.boot().modules().stream()

                .map(Module::getName)

                .collect(Collectors.toSet());

        // throw exception if an expected module is not in the boot layer

        splitter.splitAsStream(args[0])

                .filter(Predicate.not(String::isEmpty))

                .filter(mn -> !modules.contains(mn))

                .findAny()

                .ifPresent(mn -> {

                    throw new RuntimeException(mn + " not in boot layer!!!");

                });

        // throw exception if an unexpected module is in the boot layer

        splitter.splitAsStream(args[1])

                .filter(Predicate.not(String::isEmpty))

                .filter(mn -> modules.contains(mn))

                .findAny()

                .ifPresent(mn -> {

                    throw new RuntimeException(mn + " in boot layer!!!!");

                });

    }

}