diff -r 2c3cc4b01880 -r c16ac7a2eba4 test/jdk/jdk/jfr/api/consumer/filestream/TestMultipleChunk.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/jdk/jdk/jfr/api/consumer/filestream/TestMultipleChunk.java Wed Oct 30 19:43:52 2019 +0100 @@ -0,0 +1,86 @@ +/* + * 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.nio.file.Path; +import java.nio.file.Paths; +import java.util.concurrent.atomic.AtomicLong; + +import jdk.jfr.Event; +import jdk.jfr.Recording; +import jdk.jfr.consumer.EventStream; + +/** + * @test + * @summary Verifies that it is possible to stream contents from a multichunked file + * @key jfr + * @requires vm.hasJFR + * @library /test/lib + * @run main/othervm jdk.jfr.api.consumer.filestream.TestMultipleChunk + */ +public class TestMultipleChunk { + + static class SnakeEvent extends Event { + int id; + } + + public static void main(String... args) throws Exception { + Path path = Paths.get("./using-file.jfr"); + try (Recording r1 = new Recording()) { + r1.start(); + emitSnakeEvent(1); + emitSnakeEvent(2); + emitSnakeEvent(3); + // Force a chunk rotation + try (Recording r2 = new Recording()) { + r2.start(); + emitSnakeEvent(4); + emitSnakeEvent(5); + emitSnakeEvent(6); + r2.stop(); + } + r1.stop(); + r1.dump(path); + AtomicLong counter = new AtomicLong(); + try (EventStream es = EventStream.openFile(path)) { + es.onEvent(e -> { + counter.incrementAndGet(); + }); + es.start(); + if (counter.get() != 6) { + throw new Exception("Expected 6 event, but got " + counter.get()); + } + } + } + } + + static void emitSnakeEvent(int id) { + SnakeEvent e = new SnakeEvent(); + e.id = id; + e.commit(); + } + +}