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1 /* |
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2 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package jdk.jfr.api.consumer.streaming; |
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27 |
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28 import java.time.Duration; |
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29 import java.util.concurrent.CountDownLatch; |
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30 |
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31 import jdk.jfr.Enabled; |
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32 import jdk.jfr.Event; |
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33 import jdk.jfr.FlightRecorder; |
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34 import jdk.jfr.consumer.RecordingStream; |
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35 |
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36 /** |
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37 * @test |
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38 * @summary Verifies that it is possible to stream contents from specified event |
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39 * settings |
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40 * @key jfr |
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41 * @requires vm.hasJFR |
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42 * @library /test/lib |
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43 * |
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44 * @run main/othervm jdk.jfr.api.consumer.streaming.TestEnableEvents |
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45 */ |
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46 public class TestEnableEvents { |
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47 |
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48 @Enabled(false) |
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49 static class HorseEvent extends Event { |
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50 } |
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51 |
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52 @Enabled(false) |
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53 static class ElephantEvent extends Event { |
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54 } |
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55 |
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56 @Enabled(false) |
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57 static class TigerEvent extends Event { |
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58 } |
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59 |
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60 public static void main(String... args) throws Exception { |
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61 CountDownLatch elephantLatch = new CountDownLatch(1); |
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62 CountDownLatch tigerLatch = new CountDownLatch(1); |
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63 CountDownLatch horseLatch = new CountDownLatch(1); |
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64 |
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65 FlightRecorder.addPeriodicEvent(ElephantEvent.class, () -> { |
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66 HorseEvent ze = new HorseEvent(); |
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67 ze.commit(); |
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68 }); |
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69 |
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70 try (RecordingStream s = new RecordingStream()) { |
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71 s.enable(HorseEvent.class.getName()).withPeriod(Duration.ofMillis(50)); |
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72 s.enable(TigerEvent.class.getName()); |
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73 s.enable(ElephantEvent.class.getName()); |
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74 s.onEvent(TigerEvent.class.getName(), e -> { |
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75 System.out.println("Event: " + e.getEventType().getName()); |
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76 System.out.println("Found tiger!"); |
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77 tigerLatch.countDown(); |
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78 }); |
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79 s.onEvent(HorseEvent.class.getName(), e -> { |
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80 System.out.println("Found horse!"); |
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81 horseLatch.countDown(); |
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82 }); |
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83 s.onEvent(ElephantEvent.class.getName(), e -> { |
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84 System.out.println("Found elelphant!"); |
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85 elephantLatch.countDown(); |
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86 }); |
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87 s.startAsync(); |
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88 TigerEvent te = new TigerEvent(); |
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89 te.commit(); |
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90 ElephantEvent ee = new ElephantEvent(); |
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91 ee.commit(); |
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92 elephantLatch.await(); |
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93 horseLatch.await(); |
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94 tigerLatch.await(); |
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95 } |
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96 |
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97 } |
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98 |
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99 } |