test/jdk/jdk/jfr/api/consumer/recordingstream/TestSetEndTime.java
author egahlin
Thu, 22 Aug 2019 20:36:52 +0200
branchJEP-349-branch
changeset 57848 bd961c64ecce
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child 57949 74a38c0b5054
permissions -rw-r--r--
Take timestamp on commit
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/*
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 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package jdk.jfr.api.consumer.recordingstream;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.time.Duration;
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import java.time.Instant;
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import java.util.concurrent.atomic.AtomicBoolean;
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import jdk.jfr.Event;
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import jdk.jfr.Name;
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import jdk.jfr.Recording;
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import jdk.jfr.StackTrace;
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import jdk.jfr.consumer.EventStream;
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import jdk.jfr.consumer.RecordedEvent;
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import jdk.jfr.consumer.RecordingFile;
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/**
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 * @test
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 * @summary Tests EventStream::setEndTime
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 * @key jfr
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 * @requires vm.hasJFR
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 * @library /test/lib
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 * @run main/othervm jdk.jfr.api.consumer.recordingstream.TestSetEndTime
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 */
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public final class TestSetEndTime {
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    @Name("Mark")
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    @StackTrace(false)
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    public final static class Mark extends Event {
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        public boolean before;
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    }
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    public static void main(String... args) throws Exception {
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        try (Recording r = new Recording()) {
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            r.setFlushInterval(Duration.ofSeconds(1));
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            r.start();
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            Mark event1 = new Mark();
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            event1.before = true;
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            advanceClock();
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            event1.commit(); // start time
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            Mark event2 = new Mark();
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            event2.begin();  // end time
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            advanceClock();
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          //  event2.end();
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            Thread.sleep(100);
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            event2.before = false;
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            event2.commit();
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            Path p = Paths.get("recording.jfr");
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            r.dump(p);
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            Instant start = null;
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            Instant end = null;
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            for (RecordedEvent e : RecordingFile.readAllEvents(p)) {
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                if (e.getBoolean("before")) {
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                    start = e.getStartTime();
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                    System.out.println("Start: " + start);
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                }
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                if (!e.getBoolean("before")) {
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                    end = e.getStartTime();
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                    System.out.println("End  : " + end);
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                }
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            }
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            AtomicBoolean error = new AtomicBoolean(true);
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            try (EventStream d = EventStream.openRepository()) {
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                d.setStartTime(start);
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                d.setEndTime(end);
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                d.onEvent(e -> {
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                    System.out.println(e);
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                    System.out.println("Event:");
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                    System.out.println(e.getStartTime());
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                    System.out.println(e.getEndTime());
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                    System.out.println(e.getBoolean("before"));
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                    System.out.println();
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                    boolean before = e.getBoolean("before");
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                    if (before) {
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                        error.set(false);
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                    } else {
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                        error.set(true);
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                    }
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                });
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                d.start();
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                if (error.get()) {
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                    throw new Exception("Found unexpected event!");
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                }
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            }
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        }
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    }
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    private static void advanceClock() {
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        // Wait for some clock movement with
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        // java.time clock resolution.
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        Instant now = Instant.now();
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        while (Instant.now().equals(now)) {
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        }
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    }
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}