/*

 * Copyright (c) 2013, 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.io.File;

import java.lang.reflect.Method;

import java.lang.reflect.Modifier;

import java.nio.file.FileSystem;

import java.nio.file.FileSystems;

import java.nio.file.Files;

import java.nio.file.Path;

import java.util.ArrayList;

import java.util.List;

import java.util.concurrent.TimeUnit;

import java.util.concurrent.atomic.AtomicReference;

/**

 * @test

 * @library /lib/testlibrary

 * @bug 5016507 6173612 6319776 6342019 6484550 8004926

 * @summary Start a managed VM and test that a management tool can connect

 *          without connection or username/password details.

 *          TestManager will attempt a connection to the address obtained from

 *          both agent properties and jvmstat buffer.

 * @build TestManager TestApplication

 */

import jdk.testlibrary.ProcessTools;

public class LocalManagementTest {

    private static final  String TEST_CLASSES = System.getProperty("test.classes");

    private static final  String TEST_JDK = System.getProperty("test.jdk");

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

        int failures = 0;

        for(Method m : LocalManagementTest.class.getDeclaredMethods()) {

            if (Modifier.isStatic(m.getModifiers()) &&

                m.getName().startsWith("test")) {

                m.setAccessible(true);

                try {

                    System.out.println(m.getName());

                    System.out.println("==========");

                    Boolean rslt = (Boolean)m.invoke(null);

                    if (!rslt) {

                        System.err.println(m.getName() + " failed");

                        failures++;

                    }

                } catch (Exception e) {

                    e.printStackTrace();

                    failures++;

                }

            }

        }

        if (failures > 0) {

            throw new Error("Test failed");

        }

    }

    private static boolean test1() throws Exception {

    }

    private static boolean test2() throws Exception {

        Path agentPath = findAgent();

        if (agentPath != null) {

            String agent = agentPath.toString();

        } else {

            return false;

        }

    }

    /**

     * no args (blank) - manager should attach and start agent

     */

    private static boolean test3() throws Exception {

    }

    /**

     * sanity check arguments to management-agent.jar

     */

    private static boolean test4() throws Exception {

        Path agentPath = findAgent();

        if (agentPath != null) {

            ProcessBuilder builder = ProcessTools.createJavaProcessBuilder(

                "-javaagent:" + agentPath.toString() +

                "=com.sun.management.jmxremote.port=7775," +

                "com.sun.management.jmxremote.authenticate=false," +

                "com.sun.management.jmxremote.ssl=false",

                "-cp",

                TEST_CLASSES,

                "TestApplication",

                "-exit"

            );

            Process prc = null;

            try {

                prc = ProcessTools.startProcess(

                    "TestApplication",

                    builder

                );

                int exitCode = prc.waitFor();

                return exitCode == 0;

            } finally {

                if (prc != null) {

                    prc.destroy();

                    prc.waitFor();

                }

            }

        }

        return false;

    }

    /**

     * use DNS-only name service

     */

    private static boolean test5() throws Exception {

    }

    private static Path findAgent() {

        FileSystem FS = FileSystems.getDefault();

        Path agentPath = FS.getPath(

            TEST_JDK, "jre", "lib", "management-agent.jar"

        );

        if (!isFileOk(agentPath)) {

            agentPath = FS.getPath(

                TEST_JDK, "lib", "management-agent.jar"

            );

        }

        if (!isFileOk(agentPath)) {

            System.err.println("Can not locate management-agent.jar");

            return null;

        }

        return agentPath;

    }

    private static boolean isFileOk(Path path) {

        return Files.isRegularFile(path) && Files.isReadable(path);

    }

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

        args.add("-cp");

        args.add(TEST_CLASSES);

        if (arg != null) {

            args.add(arg);

        }

        args.add("TestApplication");

        ProcessBuilder server = ProcessTools.createJavaProcessBuilder(

            args.toArray(new String[args.size()])

        );

        Process serverPrc = null, clientPrc = null;

        try {

            final AtomicReference<String> port = new AtomicReference<>();

            final AtomicReference<String> pid = new AtomicReference<>();

            serverPrc = ProcessTools.startProcess(

                server,

                (String line) -> {

                    if (line.startsWith("port:")) {

                         port.set(line.split("\\:")[1]);

                     } else  if (line.startsWith("pid:")) {

                         pid.set(line.split("\\:")[1]);

                     } else if (line.startsWith("waiting")) {

                         return true;

                     }

                     return false;

                },

                5,

                TimeUnit.SECONDS

            );

            System.out.println("Attaching test manager:");

            System.out.println("=========================");

            System.out.println("  PID           : " + pid.get());

            System.out.println("  shutdown port : " + port.get());

            ProcessBuilder client = ProcessTools.createJavaProcessBuilder(

                "-cp",

                TEST_CLASSES +

                    File.pathSeparator +

                    TEST_JDK +

                    File.separator +

                    "lib" +

                    File.separator +

                    "tools.jar",

                "TestManager",

                pid.get(),

                port.get(),

                "true"

            );

            clientPrc = ProcessTools.startProcess(

                "TestManager",

                client,

                (String line) -> line.startsWith("Starting TestManager for PID"),

                10,

                TimeUnit.SECONDS

            );

            int clientExitCode = clientPrc.waitFor();

            int serverExitCode = serverPrc.waitFor();

            return clientExitCode == 0 && serverExitCode == 0;

        } finally {

            if (clientPrc != null) {

                System.out.println("Stopping process " + clientPrc);

                clientPrc.destroy();

                clientPrc.waitFor();

            }

            if (serverPrc != null) {

                System.out.println("Stopping process " + serverPrc);

                serverPrc.destroy();

                serverPrc.waitFor();

            }

        }

    }

}