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 * 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.

 *

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package jdk.jfr.api.modules;

import java.nio.file.Paths;

import static jdk.test.lib.Asserts.assertTrue;

import java.io.IOException;

import java.nio.file.Files;

import java.nio.file.Path;

import java.util.Arrays;

import java.util.Collections;

import java.util.List;

import java.util.stream.Collectors;

import javax.tools.JavaCompiler;

import javax.tools.StandardJavaFileManager;

import javax.tools.StandardLocation;

import javax.tools.ToolProvider;

import jdk.test.lib.process.OutputAnalyzer;

import jdk.test.lib.process.ProcessTools;

public class TestModularizedEvent {

    private static final String TEST_SRC = System.getProperty("test.src");

    private static final Path SRC_DIR = Paths.get(TEST_SRC, "src_mods");

    private static final Path MODS_DIR = Paths.get("mods");

    private static final String ANNO_MODULE = "test.jfr.annotation";

    private static final String SETTING_MODULE = "test.jfr.setting";

    private static final String EVENT_MODULE = "test.jfr.event";

    private static final String TEST_MODULE = "test.jfr.main";

    public static void main(String... args) throws Exception {

        compileModule(ANNO_MODULE);

        compileModule(SETTING_MODULE);

        compileModule(EVENT_MODULE, "--module-path", MODS_DIR.toString());

        compileModule(TEST_MODULE, "--module-path", MODS_DIR.toString());

        OutputAnalyzer oa = ProcessTools.executeTestJava("--module-path", "mods", "-m", "test.jfr.main/test.jfr.main.MainTest");

        oa.stdoutShouldContain("Test passed.");

    }

    private static void compileModule(String modDir, String... opts) throws Exception {

        boolean compiled = compile(SRC_DIR.resolve(modDir),

                MODS_DIR.resolve(modDir),

                opts);

        assertTrue(compiled, "module " + modDir + " did not compile");

    }

    private static boolean compile(Path source, Path destination, String... options)

            throws IOException {

        JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

        if (compiler == null) {

            // no compiler available

            throw new UnsupportedOperationException("Unable to get system java compiler. "

                    + "Perhaps, jdk.compiler module is not available.");

        }

        StandardJavaFileManager jfm = compiler.getStandardFileManager(null, null, null);

        List<Path> sources

                = Files.find(source, Integer.MAX_VALUE,

                        (file, attrs) -> (file.toString().endsWith(".java")))

                .collect(Collectors.toList());

        Files.createDirectories(destination);

        jfm.setLocation(StandardLocation.CLASS_PATH, Collections.emptyList());

        jfm.setLocationFromPaths(StandardLocation.CLASS_OUTPUT,

                Arrays.asList(destination));

        List<String> opts = Arrays.asList(options);

        JavaCompiler.CompilationTask task

                = compiler.getTask(null, jfm, null, opts, null,

                        jfm.getJavaFileObjectsFromPaths(sources));

        return task.call();

    }

}