| /* |
| * Copyright (c) 2013, 2018, 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; |
| |
| import java.util.List; |
| |
| import jdk.jfr.Recording; |
| import jdk.jfr.consumer.RecordedEvent; |
| import jdk.jfr.consumer.RecordedThreadGroup; |
| import jdk.test.lib.Asserts; |
| import jdk.test.lib.jfr.Events; |
| import jdk.test.lib.jfr.SimpleEvent; |
| |
| /** |
| * @test |
| * @summary Tests getParent method in RecordedThreadGroup |
| * @key jfr |
| * @requires vm.hasJFR |
| * @library /test/lib |
| * @run main/othervm jdk.jfr.api.consumer.TestRecordedThreadGroupParent |
| */ |
| public class TestRecordedThreadGroupParent { |
| |
| public static void main(String[] args) throws Exception { |
| ThreadGroup beforeStartGroup = new ThreadGroup(new ThreadGroup(new ThreadGroup("Grandfather"), "Father"), "Son"); |
| Thread beforeThread = new Thread(beforeStartGroup, () -> new SimpleEvent().commit(), "Before Recording Start"); |
| |
| try (Recording r = new Recording()) { |
| r.enable(SimpleEvent.class).withoutStackTrace(); |
| r.start(); |
| beforeThread.start(); |
| ThreadGroup afterStartGroup = new ThreadGroup(new ThreadGroup(new ThreadGroup("Grandmother"), "Mother"), "Daughter"); |
| Thread afterThread = new Thread(afterStartGroup, () -> new SimpleEvent().commit(), "After Recording Start"); |
| afterThread.start(); |
| |
| beforeThread.join(); |
| afterThread.join(); |
| |
| r.stop(); |
| |
| List<RecordedEvent> events = Events.fromRecording(r); |
| Events.hasEvents(events); |
| for (RecordedEvent e : events) { |
| System.out.println(e); |
| switch (e.getThread().getJavaName()) { |
| case "Before Recording Start": |
| assetrThreadGroupParents(beforeStartGroup, e.getThread().getThreadGroup()); |
| break; |
| case "After Recording Start": |
| assetrThreadGroupParents(afterStartGroup, e.getThread().getThreadGroup()); |
| break; |
| default: |
| Asserts.fail("Unexpected thread found " + e.getThread().getJavaName()); |
| } |
| } |
| } |
| } |
| |
| private static void assetrThreadGroupParents(ThreadGroup realGroup, RecordedThreadGroup recordedGroup) { |
| if (recordedGroup == null && realGroup == null) { |
| return; // root |
| } |
| Asserts.assertNotNull(recordedGroup, "Parent thread group should not be null"); |
| Asserts.assertEquals(realGroup.getName(), recordedGroup.getName(), "Parent thread group names don't match"); |
| assetrThreadGroupParents(realGroup.getParent(), recordedGroup.getParent()); |
| } |
| } |