| /* |
| * 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.filestream; |
| |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.util.IdentityHashMap; |
| import java.util.Map; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| import jdk.jfr.Event; |
| import jdk.jfr.Recording; |
| import jdk.jfr.consumer.EventStream; |
| import jdk.jfr.consumer.RecordedEvent; |
| |
| /** |
| * @test |
| * @summary Test EventStream::setReuse(...) |
| * @key jfr |
| * @requires vm.hasJFR |
| * @library /test/lib |
| * @run main/othervm jdk.jfr.api.consumer.filestream.TestReuse |
| */ |
| public class TestReuse { |
| |
| static class ReuseEvent extends Event { |
| } |
| |
| private static final boolean[] BOOLEAN_STATES = { false, true }; |
| |
| public static void main(String... args) throws Exception { |
| Path p = makeRecording(); |
| |
| testSetReuseTrue(p); |
| testSetReuseFalse(p); |
| } |
| |
| private static void testSetReuseFalse(Path p) throws Exception { |
| for (boolean ordered : BOOLEAN_STATES) { |
| AtomicBoolean fail = new AtomicBoolean(false); |
| Map<RecordedEvent, RecordedEvent> identity = new IdentityHashMap<>(); |
| try (EventStream es = EventStream.openFile(p)) { |
| es.setOrdered(ordered); |
| es.setReuse(false); |
| es.onEvent(e -> { |
| if (identity.containsKey(e)) { |
| fail.set(true); |
| es.close(); |
| } |
| identity.put(e, e); |
| }); |
| es.start(); |
| } |
| if (fail.get()) { |
| throw new Exception("Unexpected reuse! Ordered = " + ordered); |
| } |
| |
| } |
| } |
| |
| private static void testSetReuseTrue(Path p) throws Exception { |
| for (boolean ordered : BOOLEAN_STATES) { |
| AtomicBoolean success = new AtomicBoolean(false); |
| Map<RecordedEvent, RecordedEvent> events = new IdentityHashMap<>(); |
| try (EventStream es = EventStream.openFile(p)) { |
| es.setOrdered(ordered); |
| es.setReuse(true); |
| es.onEvent(e -> { |
| if(events.containsKey(e)) { |
| success.set(true);; |
| es.close(); |
| } |
| events.put(e,e); |
| }); |
| es.start(); |
| } |
| if (!success.get()) { |
| throw new Exception("No reuse! Ordered = " + ordered); |
| } |
| } |
| |
| } |
| |
| private static Path makeRecording() throws IOException { |
| try (Recording r = new Recording()) { |
| r.start(); |
| for (int i = 0; i < 5; i++) { |
| ReuseEvent e = new ReuseEvent(); |
| e.commit(); |
| } |
| Recording rotation = new Recording(); |
| rotation.start(); |
| for (int i = 0; i < 5; i++) { |
| ReuseEvent e = new ReuseEvent(); |
| e.commit(); |
| } |
| r.stop(); |
| rotation.close(); |
| Path p = Files.createTempFile("recording", ".jfr"); |
| r.dump(p); |
| return p; |
| } |
| } |
| } |