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