/* * 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. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * 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 java.nio.file.Path; import java.nio.file.Paths; import jdk.jfr.Recording; import jdk.jfr.ValueDescriptor; import jdk.jfr.consumer.RecordedEvent; import jdk.jfr.consumer.RecordingFile; // This class is intended to run inside a container public class JfrReporter { public static void main(String[] args) throws Exception { String eventName = args[0]; try(Recording r = new Recording()) { r.enable(eventName); r.start(); r.stop(); Path p = Paths.get("/", "tmp", eventName + ".jfr"); r.dump(p); for (RecordedEvent e : RecordingFile.readAllEvents(p)) { System.out.println("===== EventType: " + e.getEventType().getName()); for (ValueDescriptor v : e.getEventType().getFields()) { System.out.println(v.getName() + " = " + e.getValue(v.getName())); } } } } }