/*

 * 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

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 */

import java.io.File;

import java.net.URI;

import java.nio.file.FileSystem;

import java.nio.file.FileSystemNotFoundException;

import java.nio.file.FileSystems;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.ProviderNotFoundException;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collections;

import java.util.List;

import java.util.function.Consumer;

import java.util.stream.Stream;

import tests.Helper;

import tests.JImageGenerator;

import tests.JImageValidator;

import static java.nio.file.StandardCopyOption.REPLACE_EXISTING;

/*

 * jimage testing.

 * @test

 * @summary Test jimage tool

 * @library ../lib

 * @modules java.base/jdk.internal.jimage

 *          jdk.jdeps/com.sun.tools.classfile

 *          jdk.jlink/jdk.tools.jmod

 *          jdk.jlink/jdk.tools.jimage

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

 *          jdk.compiler

 * @run build JImageTest

 * @run build tests.*

 * @run main/othervm -verbose:gc -Xmx1g JImageTest

*/

public class JImageTest {

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

        List<String> bootClasses = new ArrayList<>();

        FileSystem fs;

        try {

            fs = FileSystems.getFileSystem(URI.create("jrt:/"));

        } catch (ProviderNotFoundException | FileSystemNotFoundException e) {

            System.out.println("Not an image build, test skipped.");

            return;

        }

        // Build the set of locations expected in the Image

        Consumer<Path> c = (p) -> {

               // take only the .class resources.

               if (Files.isRegularFile(p) && p.toString().endsWith(".class")

                       && !p.toString().endsWith("module-info.class")) {

                   String loc = p.toString().substring("/modules".length());

                   bootClasses.add(loc);

               }

           };

        Path javabase = fs.getPath("/modules/java.base");

        Path mgtbase = fs.getPath("/modules/java.management");

        try (Stream<Path> stream = Files.walk(javabase)) {

            stream.forEach(c);

        }

        try (Stream<Path> stream = Files.walk(mgtbase)) {

            stream.forEach(c);

        }

        if (bootClasses.isEmpty()) {

            throw new RuntimeException("No boot class to check against");

        }

        File jdkHome = new File(System.getProperty("test.jdk"));

        Helper helper = Helper.newHelper();

        if (helper == null) {

            System.err.println("Test not run, NO jmods directory");

            return;

        }

        // Generate the sample image

        String module = "mod1";

        String[] classes = {module + ".Main"};

        helper.generateDefaultJModule(module, Arrays.asList(classes), "java.management");

        Path image = helper.generateDefaultImage(module).assertSuccess();

        Path extractedDir = JImageGenerator.getJImageTask()

                .dir(helper.createNewExtractedDir("modules"))

                .image(image.resolve("lib").resolve("modules"))

                .extract().assertSuccess();

    }

}