71 lines
2.4 KiB
Java
71 lines
2.4 KiB
Java
/*
|
|
* Copyright (c) 2019, 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
|
|
* questions.
|
|
*/
|
|
import jdk.jfr.Event;
|
|
import jdk.jfr.Description;
|
|
import jdk.jfr.Label;
|
|
|
|
import java.util.concurrent.TimeUnit;
|
|
|
|
|
|
// This class generates simple event in a loop for a specified time.
|
|
public class EventGeneratorLoop {
|
|
public static final String MAIN_METHOD_STARTED = "MAIN_METHOD_STARTED";
|
|
|
|
@Label("SimpleEvent")
|
|
@Description("Simple custom event")
|
|
static class SimpleEvent extends Event {
|
|
@Label("Message")
|
|
String msg;
|
|
|
|
@Label("Count")
|
|
int count;
|
|
}
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
if ((args.length < 1) || (args[0] == null)) {
|
|
throw new IllegalArgumentException("Expecting one argument: time to run (seconds)");
|
|
}
|
|
int howLong = Integer.parseInt(args[0]);
|
|
long endTime = System.nanoTime() + TimeUnit.SECONDS.toNanos(howLong);
|
|
|
|
System.out.println(MAIN_METHOD_STARTED + ", argument is " + howLong);
|
|
|
|
int count = 0;
|
|
while (System.nanoTime() < endTime) {
|
|
SimpleEvent ev = new SimpleEvent();
|
|
ev.msg = "Hello";
|
|
ev.count = count++;
|
|
ev.commit();
|
|
|
|
try {
|
|
Thread.sleep(1000);
|
|
} catch (InterruptedException ignore) {
|
|
}
|
|
System.out.print(".");
|
|
}
|
|
|
|
System.out.println("EventGeneratorLoop is coming to an end");
|
|
}
|
|
|
|
}
|