1 /*

     2  * Copyright (c) 2019, 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.api.consumer.streaming;

    27 

    28 import java.nio.file.Path;

    29 import java.nio.file.Paths;

    30 import java.time.Instant;

    31 import java.util.concurrent.atomic.AtomicInteger;

    32 

    33 import jdk.jfr.consumer.EventStream;

    34 import jdk.test.lib.dcmd.CommandExecutor;

    35 import jdk.test.lib.dcmd.PidJcmdExecutor;

    36 import jdk.test.lib.process.OutputAnalyzer;

    37 

    38 /**

    39  * @test

    40  * @summary Verifies that a out-of-process stream is closed when the repository

    41  *          is changed.

    42  * @key jfr

    43  * @requires vm.hasJFR

    44  * @library /test/lib /test/jdk

    45  * @modules jdk.jfr jdk.attach java.base/jdk.internal.misc

    46  * @run main/othervm jdk.jfr.api.consumer.streaming.TestOutOfProcessMigration

    47  */

    48 public class TestOutOfProcessMigration {

    49     public static void main(String... args) throws Exception {

    50         Path newRepo = Paths.get("new-repository").toAbsolutePath();

    51 

    52         TestProcess process = new TestProcess("application");

    53         AtomicInteger eventCounter = new AtomicInteger();

    54         try (EventStream es = EventStream.openRepository(process.getRepository())) {

    55             // Start from first event in repository

    56             es.setStartTime(Instant.EPOCH);

    57             es.onEvent(e -> {

    58                 if (eventCounter.incrementAndGet() == TestProcess.NUMBER_OF_EVENTS) {

    59                     System.out.println("Changing repository to " + newRepo + " ...");

    60                     CommandExecutor executor = new PidJcmdExecutor(String.valueOf(process.pid()));

    61                     // This should close stream

    62                     OutputAnalyzer oa = executor.execute("JFR.configure repositorypath=" + newRepo);

    63                     System.out.println(oa);

    64                 }

    65             });

    66             es.start();

    67         }

    68     }

    69 }