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.util.List;
  29 
  30 import jdk.jfr.RecordingState;
  31 import jdk.management.jfr.FlightRecorderMXBean;
  32 import jdk.management.jfr.RecordingInfo;
  33 
  34 /*
  35  * @test
  36  * @key jfr
  37  * @library /test/lib /test/jdk
  38  * @run main/othervm jdk.jfr.jmx.TestMultipleRecordings
  39  */
  40 public class TestMultipleRecordings {
  41     public static void main(String[] args) throws Throwable {
  42         FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();
  43         System.out.println("bean.class=" + bean.getClass().getName());
  44 
  45         // Start recA
  46         long recIdA = createRecording(bean);
  47         startRecording(recIdA, bean);
  48 
  49         // Start recB
  50         long recIdB = createRecording(bean);
  51         startRecording(recIdB, bean);
  52 
  53         // Stop and destroy recA
  54         stopRecording(recIdA, bean);
  55         destroyRecording(recIdA, bean);
  56 
  57         // Start, stop and destroy recC
  58         long recIdC = createRecording(bean);
  59         startRecording(recIdC, bean);
  60         stopRecording(recIdC, bean);
  61         destroyRecording(recIdC, bean);
  62 
  63         // Stop and destroy recB
  64         stopRecording(recIdB, bean);
  65         destroyRecording(recIdB, bean);
  66     }
  67 
  68     private static long createRecording(FlightRecorderMXBean bean) throws Exception {
  69         List<RecordingInfo> preCreateRecordings = bean.getRecordings();
  70         long recId = bean.newRecording();
  71         JmxHelper.verifyNotExists(recId, preCreateRecordings);
  72         JmxHelper.verifyState(recId, RecordingState.NEW, bean);
  73         return recId;
  74     }
  75 
  76     private static void startRecording(long recId, FlightRecorderMXBean bean) throws Exception {
  77         JmxHelper.verifyState(recId, RecordingState.NEW, bean);
  78         bean.startRecording(recId);
  79         JmxHelper.verifyState(recId, RecordingState.RUNNING, bean);
  80     }
  81 
  82     private static void stopRecording(long recId, FlightRecorderMXBean bean) throws Exception {
  83         JmxHelper.verifyState(recId, RecordingState.RUNNING, bean);
  84         bean.stopRecording(recId);
  85         JmxHelper.verifyState(recId, RecordingState.STOPPED, bean);
  86     }
  87 
  88     private static void destroyRecording(long recId, FlightRecorderMXBean bean) throws Exception {
  89         JmxHelper.verifyState(recId, RecordingState.STOPPED, bean);
  90         bean.closeRecording(recId);
  91         JmxHelper.verifyNotExists(recId, bean.getRecordings());
  92     }
  93 
  94 }