/* * Copyright (c) 2013, 2018, 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. */ package jdk.jfr.jmx; import java.nio.file.Path; import java.nio.file.Paths; import java.util.List; import jdk.jfr.FlightRecorder; import jdk.jfr.Recording; import jdk.jfr.RecordingState; import jdk.jfr.consumer.RecordedEvent; import jdk.jfr.consumer.RecordingFile; import jdk.management.jfr.FlightRecorderMXBean; import jdk.test.lib.Asserts; import jdk.test.lib.jfr.SimpleEventHelper; /** * @test * @key jfr * @summary Copy a recording to file while it is running. * * @library /lib / * @run main/othervm jdk.jfr.jmx.TestCopyToRunning */ public class TestCopyToRunning { public static void main(String[] args) throws Exception { FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean(); long recId = bean.newRecording(); bean.startRecording(recId); SimpleEventHelper.createEvent(1); Path path = Paths.get(".", "my.jfr"); bean.copyTo(recId, path.toString()); List events = RecordingFile.readAllEvents(path); Asserts.assertTrue(events.iterator().hasNext(), "No events found"); for (RecordedEvent event : events) { System.out.println("Event:" + event); } Recording recording = getRecording(recId); Asserts.assertEquals(recording.getState(), RecordingState.RUNNING, "Recording not in state running"); bean.stopRecording(recId); Asserts.assertEquals(recording.getState(), RecordingState.STOPPED, "Recording not in state stopped"); bean.closeRecording(recId); Asserts.assertEquals(recording.getState(), RecordingState.CLOSED, "Recording not in state closed"); } private static Recording getRecording(long recId) { for (Recording r : FlightRecorder.getFlightRecorder().getRecordings()) { if (r.getId() == recId) { return r; } } Asserts.fail("Could not find recording with id " + recId); return null; } }