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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.nio.file.Path; |
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29 import java.util.concurrent.atomic.AtomicLong; |
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30 |
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31 import jdk.jfr.Event; |
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32 import jdk.jfr.consumer.EventStream; |
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33 |
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34 /** |
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35 * @test |
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36 * @summary Verifies that it is possible to stream contents from a file |
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37 * @key jfr |
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38 * @requires vm.hasJFR |
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39 * @library /test/lib |
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40 * @run main/othervm jdk.jfr.api.consumer.streaming.TestFromFile |
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41 */ |
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42 public class TestFromFile { |
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43 |
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44 static class SnakeEvent extends Event { |
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45 int id; |
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46 } |
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47 |
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48 public static void main(String... args) throws Exception { |
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49 // Path path = Paths.get("./using-file.jfr"); |
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50 // try (Recording r1 = new Recording()) { |
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51 // r1.start(); |
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52 // emitSnakeEvent(1); |
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53 // emitSnakeEvent(2); |
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54 // emitSnakeEvent(3); |
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55 // // Force a chunk rotation |
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56 // try (Recording r2 = new Recording()) { |
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57 // r2.start(); |
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58 // emitSnakeEvent(4); |
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59 // emitSnakeEvent(5); |
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60 // emitSnakeEvent(6); |
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61 // r2.stop(); |
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62 // } |
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63 // r1.stop(); |
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64 // r1.dump(path); |
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65 // |
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66 // testIterator(path); |
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67 // testConsumer(path); |
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68 // } |
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69 } |
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70 |
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71 static void testConsumer(Path path) throws Exception { |
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72 AtomicLong counter = new AtomicLong(); |
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73 try (EventStream es = EventStream.openFile(path)) { |
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74 es.onEvent(e -> { |
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75 counter.incrementAndGet(); |
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76 }); |
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77 es.startAsync(); |
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78 if (counter.get() != 6) { |
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79 throw new Exception("Expected 6 event, but got " + counter.get()); |
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80 } |
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81 es.awaitTermination(); |
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82 } |
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83 } |
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84 |
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85 static void emitSnakeEvent(int id) { |
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86 SnakeEvent e = new SnakeEvent(); |
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87 e.id = id; |
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88 e.commit(); |
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89 } |
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90 |
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91 } |