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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 * 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,

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package jdk.jfr.event.runtime;

import java.lang.management.ManagementFactory;

import java.lang.management.RuntimeMXBean;

import java.util.List;

import java.util.stream.Collectors;

import jdk.jfr.Recording;

import jdk.jfr.consumer.RecordedEvent;

import jdk.test.lib.Asserts;

import jdk.test.lib.jfr.EventNames;

import jdk.test.lib.jfr.Events;

/**

 * The test will verify that JVM Information event values are delivered

 * and compare them with the RuntimeMXBean's values.

 */

public class TestVMInfoEvent {

    private final static String EVENT_NAME = EventNames.JVMInformation;

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

        RuntimeMXBean mbean = ManagementFactory.getRuntimeMXBean();

        Recording recording = new Recording();

        recording.enable(EVENT_NAME);

        recording.start();

        recording.stop();

        List<RecordedEvent> events = Events.fromRecording(recording);

        Events.hasEvents(events);

        for (RecordedEvent event : events) {

            System.out.println("Event:" + event);

            Events.assertField(event, "jvmName").equal(mbean.getVmName());

            String jvmVersion = Events.assertField(event, "jvmVersion").notEmpty().getValue();

            if (!jvmVersion.contains(mbean.getVmVersion())) {

                Asserts.fail(String.format("%s does not contain %s", jvmVersion, mbean.getVmVersion()));

            }

            String jvmArgs = Events.assertField(event, "jvmArguments").notNull().getValue();

            String jvmFlags = Events.assertField(event, "jvmFlags").notNull().getValue();

            Long pid = Events.assertField(event, "pid").atLeast(0L).getValue();

            Asserts.assertEquals(pid, ProcessHandle.current().pid());

            String eventArgs = (jvmFlags.trim() + " " + jvmArgs).trim();

            String beanArgs = mbean.getInputArguments().stream().collect(Collectors.joining(" "));

            Asserts.assertEquals(eventArgs, beanArgs, "Wrong inputArgs");

            final String javaCommand = mbean.getSystemProperties().get("sun.java.command");

            Events.assertField(event, "javaArguments").equal(javaCommand);

            Events.assertField(event, "jvmStartTime").equal(mbean.getStartTime());

        }

    }

}