/*
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* 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.util.HashMap;
import java.util.Map;
import java.util.concurrent.CountDownLatch;
import javax.management.MBeanServerConnection;
import jdk.jfr.Enabled;
import jdk.jfr.Event;
import jdk.jfr.Name;
import jdk.jfr.StackTrace;
import jdk.management.jfr.RemoteRecordingStream;
/**
* @ test
* @ key jfr
* @ summary Tests that a RemoteRecordingStream can be configured using
* setSettings
* @ requires vm . hasJFR
* @ library / test / lib / test / jdk
* @ run main / othervm jdk . jfr . jmx . streaming . TestSetSettings
*/
public class TestSetSettings {
@Enabled(false )
@StackTrace(false )
@Name("Event1" )
static class Event1 extends Event {
}
@Enabled(false )
@StackTrace(false )
@Name("Event2" )
static class Event2 extends Event {
}
public static void main(String... args) throws Exception {
CountDownLatch latch1 = new CountDownLatch(1 );
CountDownLatch latch2 = new CountDownLatch(1 );
MBeanServerConnection conn = ManagementFactory.getPlatformMBeanServer();
try (RemoteRecordingStream r = new RemoteRecordingStream(conn)) {
r.onEvent("Event1" , e -> {
System.out.println("Found event: " + e.getEventType().getName());
if (e.getStackTrace() == null ) {
System.out.println("Missing strack trace" );
return ;
}
latch1.countDown();
});
r.onEvent("Event2" , e -> {
System.out.println("Found event: " + e.getEventType().getName());
if (e.getStackTrace() == null ) {
System.out.println("Missing strack trace" );
return ;
}
latch2.countDown();
});
// Set settings before start
Map<String, String> settings = new HashMap<>();
settings.put("Event1#enabled" , "true" );
settings.put("Event1#stackTrace" , "true" );
r.setSettings(settings);
r.startAsync();
Event1 e1 = new Event1();
e1.commit();
System.out.println("Awaiting latch 1" );
latch1.await();
// Set settings when running
settings = new HashMap<>();
settings.put("Event2#enabled" , "true" );
settings.put("Event2#stackTrace" , "true" );
r.setSettings(settings);
Event2 e2 = new Event2();
e2.commit();
System.out.println("Awaiting latch 2" );
latch2.await();
}
}
}
Messung V0.5 in Prozent C=97 H=84 G=90
¤ Dauer der Verarbeitung: 0.8 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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