/*
* Copyright ( c ) 2020 , 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.streaming;
import java.lang.management.ManagementFactory;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.concurrent.CountDownLatch;
import javax.management.MBeanServerConnection;
import jdk.jfr.Event;
import jdk.jfr.Recording;
import jdk.jfr.StackTrace;
import jdk.management.jfr.RemoteRecordingStream;
/**
* @ test
* @ key jfr
* @ summary Tests that streaming can work over chunk rotations
* @ requires vm . hasJFR
* @ library / test / lib / test / jdk
* @ run main / othervm - Xlog : jfr = debug jdk . jfr . jmx . streaming . TestRotate
*/
public class TestRotate {
@StackTrace(false )
static class TestRotateEvent extends Event {
int value;
}
public static void main(String... args) throws Exception {
MBeanServerConnection conn = ManagementFactory.getPlatformMBeanServer();
Path p = Files.createDirectory(Paths.get("test-stream-rotate-" + System.currentTimeMillis()));
CountDownLatch latch = new CountDownLatch(100 );
try (RemoteRecordingStream r = new RemoteRecordingStream(conn, p)) {
r.onEvent(e -> {
System.out.println(e);
latch.countDown();
});
r.startAsync();
for (int i = 1 ; i <= 100 ; i++) {
TestRotateEvent e = new TestRotateEvent();
e.value = i;
e.commit();
if (i % 30 == 0 ) {
rotate();
}
Thread .sleep(10 );
}
System.out.println("Events generated. Awaiting consumption" );
latch.await();
}
}
private static void rotate() {
try (Recording r = new Recording()) {
r.start();
}
}
}
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