EventProducer.java

/*
 * 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.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
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 */
import java.net.InetAddress;
import jdk.jfr.Event;
import jdk.jfr.FlightRecorder;

public class EventProducer {
    public static final String HOST_ADDR_TAG = "HostAddr:";

    static class SimpleEvent extends Event {
    }

    public static void main(String[] args) throws Exception {
        System.out.println(HOST_ADDR_TAG + InetAddress.getLocalHost().getHostAddress());

        // wait for flight recorder to initialize
        while(!FlightRecorder.isInitialized()) {
            Thread.sleep(100);
        }
        System.out.println("Recording has been initialized");

        // emit events
        while (true) {
            SimpleEvent event = new SimpleEvent();
            event.commit();
            Thread.sleep(10);
        }
    }
}