1 /*
2 * Copyright (c) 2016, 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 package jdk.jfr.api.recording.misc;
26
27 import java.io.IOException;
28 import java.io.InputStream;
29 import java.nio.file.Files;
30 import java.nio.file.Path;
31 import java.nio.file.Paths;
32 import java.nio.file.StandardCopyOption;
33 import java.time.Duration;
34 import java.time.Instant;
35 import java.util.ArrayList;
36 import java.util.Arrays;
37 import java.util.List;
38 import java.util.stream.Collectors;
39
40 import jdk.jfr.Recording;
41 import jdk.jfr.consumer.RecordedEvent;
42 import jdk.jfr.consumer.RecordingFile;
43 import jdk.test.lib.Asserts;
44 import jdk.test.lib.jfr.SimpleEvent;
45
46 /**
47 * @test
48 * @summary A simple test for Recording.getStream()
49 * @key jfr
50 *
51 * @library /lib /
52 * @run main/othervm jdk.jfr.api.recording.misc.TestGetStream
53 */
54 public class TestGetStream {
55
56 private final static Instant offset = Instant.now();
57 private static Instant previous;
58
59 public static void main(String[] args) throws Exception {
60
61 Recording recording = new Recording();
62 Instant t0 = newTimestamp();
63 recording.start();
64 Instant t1 = newTimestamp();
65 createChunkWithId(1);
66 Instant t2 = newTimestamp();
67 createChunkWithId(2);
68 Instant t3 = newTimestamp();
69 createChunkWithId(3);
70 Instant t4 = newTimestamp();
71 recording.stop();
72 Instant t5 = newTimestamp();
73 printTimeStamp("t0", t0);
74 printTimeStamp("t1", t1);
75 printTimeStamp("t2", t2);
76 printTimeStamp("t3", t3);
77 printTimeStamp("t4", t4);
78 printTimeStamp("t5", t5);
79
80 assertContainsId(recording, "t1-t4", t1, t4, 1, 2, 3);
81 assertContainsId(recording, "t1-t3", t1, t3, 1, 2);
82 assertContainsId(recording, "t2-t4", t2, t4, 2, 3);
83 assertContainsId(recording, "t1-t2", t1, t2, 1);
84 assertContainsId(recording, "t2-t3", t2, t3, 2);
85 assertContainsId(recording, "t3-t4", t3, t4, 3);
86 assertContainsId(recording, "t0-t1", t0, t1);
87 assertContainsId(recording, "t4-t5", t4, t5);
88
89 assertEndBeforeBegin();
90 }
91
92 private static void printTimeStamp(String name, Instant t) {
93 Duration s = Duration.between(offset, t);
94 System.out.println(name + ": " + (s.getSeconds() * 1_000_000_000L + s.getNano()));
95 }
96
97 private static void createChunkWithId(int id) throws InterruptedException {
98 newTimestamp(); // ensure every recording gets a unique start time
99 try (Recording r = new Recording()) {
100 r.start();
101 SimpleEvent s = new SimpleEvent();
102 s.id = id;
103 s.commit();
104 r.stop();
105 newTimestamp(); // ensure that start time is not equal to stop time
106 }
107 newTimestamp(); // ensure every recording gets a unique stop time
108 }
109
110 // Create a timestamp that is not same as the previous one
111 private static Instant newTimestamp() throws InterruptedException {
112 while (true) {
113 Instant now = Instant.now();
114 if (!now.equals(previous)) {
115 previous = now;
116 return now;
117 }
118 Thread.sleep(1);
119 }
120 }
121
122 private static void assertContainsId(Recording r, String interval, Instant start, Instant end, Integer... ids) throws IOException {
123 List<Integer> idList = new ArrayList<>(Arrays.asList(ids));
124 long time = System.currentTimeMillis();
125 String fileName = idList.stream().map(x -> x.toString()).collect(Collectors.joining("_", "recording-get-stream_" + time + "_", ".jfr"));
126 Path file = Paths.get(fileName);
127 try (InputStream is = r.getStream(start, end)) {
128 Files.copy(is, file, StandardCopyOption.REPLACE_EXISTING);
129 }
130 try (RecordingFile rf = new RecordingFile(file)) {
131 while (rf.hasMoreEvents()) {
132 RecordedEvent event = rf.readEvent();
133 Integer id = event.getValue("id");
134 Asserts.assertTrue(idList.contains(id), "Unexpected id " + id + " found in interval " + interval);
135 idList.remove(id);
136 }
137 Asserts.assertTrue(idList.isEmpty(), "Expected events with ids " + idList);
138 }
139 }
140
141 private static void assertEndBeforeBegin() throws IOException {
142 try (Recording recording = new Recording()) {
143 recording.start();
144 recording.stop();
145 Instant begin = Instant.now();
146 Instant end = begin.minusNanos(1);
147 recording.getStream(begin, end);
148 Asserts.fail("Expected IllegalArgumentException has not been thrown");
149 } catch (IllegalArgumentException x) {
150 // Caught the expected exception
151 }
152 }
153
154 }