/*

 * Copyright (c) 2015, 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.

 */

 /*

 * @test

 * @summary Negative test for ImagePluginStack.

 * @author Andrei Eremeev

 * @modules jdk.jlink/jdk.tools.jlink

 *          jdk.jlink/jdk.tools.jlink.internal

 *          jdk.jlink/jdk.tools.jlink.plugin

 * @run main/othervm PluginsNegativeTest

 */

import java.util.ArrayList;

import java.util.Collections;

import java.util.List;

import java.util.Map;

import jdk.tools.jlink.internal.ImagePluginConfiguration;

import jdk.tools.jlink.internal.Jlink;

import jdk.tools.jlink.internal.Jlink.PluginsConfiguration;

import jdk.tools.jlink.internal.PluginRepository;

import jdk.tools.jlink.internal.ImagePluginStack;

import jdk.tools.jlink.internal.ResourcePoolManager;

import jdk.tools.jlink.plugin.Plugin;

import jdk.tools.jlink.plugin.ResourcePool;

import jdk.tools.jlink.plugin.ResourcePoolBuilder;

import jdk.tools.jlink.plugin.ResourcePoolEntry;

public class PluginsNegativeTest {

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

        new PluginsNegativeTest().test();

    }

    public void test() throws Exception {

        testDuplicateBuiltInProviders();

        testUnknownProvider();

        PluginRepository.registerPlugin(new CustomPlugin("plugin"));

        testEmptyInputResource();

        testEmptyOutputResource();

    }

    private void testDuplicateBuiltInProviders() {

        List<Plugin> javaPlugins = new ArrayList<>();

        for (Plugin javaPlugin : javaPlugins) {

            System.out.println("Registered plugin: " + javaPlugin.getName());

        }

        for (Plugin javaPlugin : javaPlugins) {

            String pluginName = javaPlugin.getName();

            try {

                PluginRepository.registerPlugin(new CustomPlugin(pluginName));

                try {

                    throw new AssertionError("Exception is not thrown for duplicate plugin: " + pluginName);

                } catch (Exception ignored) {

                }

            } finally {

                PluginRepository.unregisterPlugin(pluginName);

            }

        }

    }

    private void testUnknownProvider() {

            throw new AssertionError("Exception expected for unknown plugin name");

        }

    }

    private static Plugin createPlugin(String name) {

        return Jlink.newPlugin(name, Collections.emptyMap(), null);

    }

    private void testEmptyOutputResource() throws Exception {

        List<Plugin> plugins = new ArrayList<>();

        plugins.add(createPlugin("plugin"));

        ImagePluginStack stack = ImagePluginConfiguration.parseConfiguration(new PluginsConfiguration(plugins,

                null, null));

        ResourcePoolManager inResources = new ResourcePoolManager();

        inResources.add(ResourcePoolEntry.create("/aaa/bbb/A", new byte[10]));

        try {

            stack.visitResources(inResources);

            throw new AssertionError("Exception expected when output resource is empty");

        } catch (Exception ignored) {

        }

    }

    private void testEmptyInputResource() throws Exception {

        List<Plugin> plugins = new ArrayList<>();

        plugins.add(createPlugin("plugin"));

        ImagePluginStack stack = ImagePluginConfiguration.parseConfiguration(new PluginsConfiguration(plugins,

                null, null));

        ResourcePoolManager inResources = new ResourcePoolManager();

        ResourcePool outResources = stack.visitResources(inResources);

        if (!outResources.isEmpty()) {

            throw new AssertionError("Output resource is not empty");

        }

    }

    public static class CustomPlugin implements Plugin {

        private final String name;

        CustomPlugin(String name) {

            this.name = name;

        }

        @Override

        public ResourcePool transform(ResourcePool inResources, ResourcePoolBuilder outResources) {

            // don't add anything to the builder

            return outResources.build();

        }

        @Override

        public String getName() {

            return name;

        }

        @Override

        public String getDescription() {

            return null;

        }

        @Override

        public void configure(Map<String, String> config) {

        }

    }

}