1 /* 2 * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 package jdk.jfr.jmx; 25 26 import java.nio.file.Path; 27 import java.nio.file.Paths; 28 import java.util.List; 29 30 import jdk.jfr.FlightRecorder; 31 import jdk.jfr.Recording; 32 import jdk.jfr.RecordingState; 33 import jdk.jfr.consumer.RecordedEvent; 34 import jdk.jfr.consumer.RecordingFile; 35 import jdk.management.jfr.FlightRecorderMXBean; 36 import jdk.test.lib.Asserts; 37 import jdk.test.lib.jfr.SimpleEventHelper; 38 39 /** 40 * @test 41 * @key jfr 42 * @summary Copy a recording to file while it is running. 43 * @requires vm.hasJFR 44 * @library /test/lib /test/jdk 45 * @run main/othervm jdk.jfr.jmx.TestCopyToRunning 46 */ 47 public class TestCopyToRunning { main(String[] args)48 public static void main(String[] args) throws Exception { 49 FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean(); 50 51 long recId = bean.newRecording(); 52 bean.startRecording(recId); 53 SimpleEventHelper.createEvent(1); 54 55 Path path = Paths.get(".", "my.jfr"); 56 bean.copyTo(recId, path.toString()); 57 58 List<RecordedEvent> events = RecordingFile.readAllEvents(path); 59 Asserts.assertTrue(events.iterator().hasNext(), "No events found"); 60 for (RecordedEvent event : events) { 61 System.out.println("Event:" + event); 62 } 63 64 Recording recording = getRecording(recId); 65 Asserts.assertEquals(recording.getState(), RecordingState.RUNNING, "Recording not in state running"); 66 bean.stopRecording(recId); 67 Asserts.assertEquals(recording.getState(), RecordingState.STOPPED, "Recording not in state stopped"); 68 bean.closeRecording(recId); 69 Asserts.assertEquals(recording.getState(), RecordingState.CLOSED, "Recording not in state closed"); 70 } 71 getRecording(long recId)72 private static Recording getRecording(long recId) { 73 for (Recording r : FlightRecorder.getFlightRecorder().getRecordings()) { 74 if (r.getId() == recId) { 75 return r; 76 } 77 } 78 Asserts.fail("Could not find recording with id " + recId); 79 return null; 80 } 81 } 82