/*

 * Copyright (c) 2017, 2018, 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.IOException;

import java.io.OutputStream;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

import jdk.test.lib.apps.LingeredApp;

import jdk.test.lib.Asserts;

import jdk.test.lib.JDKToolLauncher;

import jdk.test.lib.Platform;

import jdk.test.lib.process.OutputAnalyzer;

import jdk.test.lib.process.ProcessTools;

import jdk.test.lib.Utils;

/*

 * @test

 * @library /test/lib

 * @run main/othervm TestJhsdbJstackLock

 */

public class TestJhsdbJstackLock {

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

        LingeredApp app = null;

        if (!Platform.shouldSAAttach()) {

            System.out.println("SA attach not expected to work - test skipped.");

            return;

        }

        try {

            List<String> vmArgs = new ArrayList<String>(Utils.getVmOptions());

            app = new LingeredAppWithLock();

            LingeredApp.startApp(vmArgs, app);

            System.out.println ("Started LingeredApp with pid " + app.getPid());

            JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jhsdb");

            launcher.addToolArg("jstack");

            launcher.addToolArg("--pid");

            launcher.addToolArg(Long.toString(app.getPid()));

            ProcessBuilder pb = new ProcessBuilder();

            pb.command(launcher.getCommand());

            Process jhsdb = pb.start();

            OutputAnalyzer out = new OutputAnalyzer(jhsdb);

            jhsdb.waitFor();

            System.out.println(out.getStdout());

            System.err.println(out.getStderr());

            out.shouldMatch("^\\s+- locked <0x[0-9a-f]+> \\(a java\\.lang\\.Class for LingeredAppWithLock\\)$");

            out.shouldMatch("^\\s+- waiting to lock <0x[0-9a-f]+> \\(a java\\.lang\\.Class for LingeredAppWithLock\\)$");

            out.shouldMatch("^\\s+- locked <0x[0-9a-f]+> \\(a java\\.lang\\.Thread\\)$");

            out.shouldMatch("^\\s+- locked <0x[0-9a-f]+> \\(a java\\.lang\\.Class for int\\)$");

            // stderr should be empty except for VM warnings.

            if (!out.getStderr().isEmpty()) {

                List<String> lines = Arrays.asList(out.getStderr().split("(\\r\\n|\\n|\\r)"));

                Pattern p = Pattern.compile(".*VM warning.*");

                for (String line : lines) {

                    Matcher m = p.matcher(line);

                    if (!m.matches()) {

                        throw new RuntimeException("Stderr has output other than VM warnings");

                    }

                }

            }

            System.out.println("Test Completed");

        } finally {

            LingeredApp.stopApp(app);

        }

    }

}