| /* |
| * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.jfr.api.consumer.streaming; |
| |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.time.Duration; |
| import java.time.Instant; |
| import java.util.concurrent.CountDownLatch; |
| |
| import jdk.jfr.Event; |
| import jdk.jfr.Recording; |
| import jdk.jfr.consumer.EventStream; |
| import jdk.jfr.jcmd.JcmdHelper; |
| |
| /** |
| * @test |
| * @summary Verifies that is possible to stream from a repository that is being |
| * moved. |
| * @key jfr |
| * @requires vm.hasJFR |
| * @library /test/lib /test/jdk |
| * @run main/othervm jdk.jfr.api.consumer.streaming.TestRepositoryMigration |
| */ |
| public class TestRepositoryMigration { |
| static class MigrationEvent extends Event { |
| int id; |
| } |
| |
| public static void main(String... args) throws Exception { |
| Path newRepository = Paths.get("new-repository"); |
| CountDownLatch event1 = new CountDownLatch(1); |
| CountDownLatch event2 = new CountDownLatch(1); |
| |
| try (EventStream es = EventStream.openRepository()) { |
| es.setStartTime(Instant.EPOCH); |
| es.onEvent(e -> { |
| System.out.println(e); |
| if (e.getInt("id") == 1) { |
| event1.countDown(); |
| } |
| if (e.getInt("id") == 2) { |
| event2.countDown(); |
| } |
| }); |
| es.startAsync(); |
| System.out.println("Started es.startAsync()"); |
| |
| try (Recording r = new Recording()) { |
| r.setFlushInterval(Duration.ofSeconds(1)); |
| r.start(); |
| // Chunk in default repository |
| MigrationEvent e1 = new MigrationEvent(); |
| e1.id = 1; |
| e1.commit(); |
| event1.await(); |
| System.out.println("Passed the event1.await()"); |
| JcmdHelper.jcmd("JFR.configure", "repositorypath=" + newRepository.toAbsolutePath()); |
| // Chunk in new repository |
| MigrationEvent e2 = new MigrationEvent(); |
| e2.id = 2; |
| e2.commit(); |
| r.stop(); |
| event2.await(); |
| System.out.println("Passed the event2.await()"); |
| // Verify that it happened in new repository |
| if (!Files.exists(newRepository)) { |
| throw new AssertionError("Could not find repository " + newRepository); |
| } |
| System.out.println("Listing contents in new repository:"); |
| boolean empty = true; |
| for (Path p : Files.newDirectoryStream(newRepository)) { |
| System.out.println(p.toAbsolutePath()); |
| empty = false; |
| } |
| System.out.println(); |
| if (empty) { |
| throw new AssertionError("Could not find contents in new repository location " + newRepository); |
| } |
| } |
| } |
| } |
| |
| } |