/*
* Copyright ( c ) 2013 , 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 .
*
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*/
package jdk.jfr.jmx;
import java.io.IOException;
import java.util.List;
import jdk.jfr.FlightRecorder;
import jdk.jfr.Recording;
import jdk.management.jfr.FlightRecorderMXBean;
import jdk.management.jfr.RecordingInfo;
import jdk.test.lib.jfr.SimpleEvent;
/**
* @ test
* @ key jfr
* @ requires vm . hasJFR
* @ library / test / lib / test / jdk
* @ run main / othervm jdk . jfr . jmx . TestSnapshot
*/
public class TestSnapshot {
public static void main(String[] args) throws Exception {
testEmpty();
testStopped();
}
private static void testStopped() throws IOException {
try (Recording r = new Recording()) {
r.enable(SimpleEvent.class );
r.start();
SimpleEvent se = new SimpleEvent();
se.commit();
r.stop();
try (Recording snapshot = FlightRecorder.getFlightRecorder().takeSnapshot()) {
r.close();
FlightRecorderMXBean mxBean = JmxHelper.getFlighteRecorderMXBean();
List<RecordingInfo> recs = mxBean.getRecordings();
JmxHelper.verifyEquals(recs.get(0 ), snapshot);
}
}
}
private static void testEmpty() throws IOException {
try (Recording snapshot = FlightRecorder.getFlightRecorder().takeSnapshot()) {
FlightRecorderMXBean mxBean = JmxHelper.getFlighteRecorderMXBean();
List<RecordingInfo> recs = mxBean.getRecordings();
JmxHelper.verifyEquals(recs.get(0 ), snapshot);
}
}
}
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