/*

 * Copyright (c) 2007, 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

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 */

/*

 * @test

 *

 * @summary converted from VM Testbase nsk/monitoring/CompilationMXBean/comptimemon001.

 * VM Testbase keywords: [quick, monitoring]

 * VM Testbase readme:

 * DESCRIPTION

 *     The test checks that

 *         CompilationMBean.isCompilationTimeMonitoringSupported()

 *     method returns true. The test performs directly access to management

 *     metrics within the same JVM.

 *     Note, that the test is correct ONLY against Sun's Hotspot VM. This

 *     feature is optional and the method may return either true, or false.

 *     However, Sun's implementation must always return true.

 *     The test passes, if the JVM has no compilation system, for example the

 *     test is invoked with -Xint option.

 * COMMENT

 *     Fixed the bug:

 *     4953476 TEST_BUG: The spec is updated accoring to 4944573 and 4947536

 *

 * @library /vmTestbase

 *          /test/lib

 * @run driver jdk.test.lib.FileInstaller . .

 * @run main/othervm/timeout=300 nsk.monitoring.CompilationMXBean.comptimemon001.comptimemon001

 */

package nsk.monitoring.CompilationMXBean.comptimemon001;

import java.io.*;

import nsk.share.test.*;

import nsk.share.TestFailure;

import nsk.monitoring.share.*;

import java.lang.management.*;

public class comptimemon001 extends MonitoringTestBase implements Initializable {

        private CompilationMXBean compilation;

        private int iterations = 30;

        public void initialize() {

                if (monitoringFactory.hasCompilationMXBean())

                        compilation = monitoringFactory.getCompilationMXBean();

        }

        public boolean testCompilationTimeMonitoringSupported() {

                if (compilation == null) {

                        // The JVM has no compilation system, for example the test is

                        // invoked with -Xint option

                        log.info("The JVM has no compilation system.");

                        return false;

                } else if (!compilation.isCompilationTimeMonitoringSupported()) {

                        // Check the method is... for the specified way of access to MBeans

                        log.error("Monitoring of compilation time is not supported.\n");

                        setFailed(true);

                        return false;

                }

                return true;

        }

        private void testCompilationTimeOne() {

                long sleepTime = LocalRandom.randomPauseTime();

                long startTime = compilation.getTotalCompilationTime();

                if (startTime < 0)

                        throw new TestFailure("getTotalCompilationTime < 0: " + startTime);

                try {

                        Thread.sleep(sleepTime);

                } catch (InterruptedException e) {

                        throw new TestFailure("Sleep was interrupted.");

                }

                long finishTime = compilation.getTotalCompilationTime();

                if (finishTime < 0)

                        throw new TestFailure("getTotalCompilationTime < 0: " + finishTime);

                if (finishTime < startTime)

                        throw new TestFailure("getTotalCompilationTime before sleep: " + startTime

                                + " > getTotalCompilationTime after sleep: " + finishTime);

        }

        public void testCompilationTime() {

                for (int i = 0; i < iterations; ++i)

                        testCompilationTimeOne();

        }

        public void run() {

                if (!testCompilationTimeMonitoringSupported())

                        return;

                testCompilationTime();

        }

        public static void main(String[] args) {

                Monitoring.runTest(new comptimemon001(), args);

        }

}