--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/api/consumer/streaming/TestRecordingBefore.java Fri May 17 18:03:14 2019 +0200
@@ -0,0 +1,98 @@
+/*
+ * 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.util.concurrent.CountDownLatch;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import jdk.jfr.Event;
+import jdk.jfr.Recording;
+import jdk.jfr.consumer.RecordingStream;
+
+/**
+ * @test
+ * @summary Verifies that it is possible to start a stream when there are
+ * already chunk in the repository
+ * @key jfr
+ * @requires vm.hasJFR
+ * @library /test/lib
+ * @run main/othervm jdk.jfr.api.consumer.streaming.TestRecordingBefore
+ */
+public class TestRecordingBefore {
+
+ static class SnakeEvent extends Event {
+ int id;
+ }
+
+ public static void main(String... args) throws Exception {
+
+ 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();
+ // Two chunks should now exist in the repository
+ AtomicBoolean fail = new AtomicBoolean(false);
+ CountDownLatch lastEvent = new CountDownLatch(1);
+ try (RecordingStream rs = new RecordingStream()) {
+ rs.onEvent(e -> {
+ long id = e.getLong("id");
+ if (id < 7) {
+ System.out.println("Found unexpected id " + id);
+ fail.set(true);
+ }
+ if (id == 9) {
+ lastEvent.countDown();
+ }
+ });
+ rs.startAsync();
+ emitSnakeEvent(7);
+ emitSnakeEvent(8);
+ emitSnakeEvent(9);
+ lastEvent.await();
+ if (fail.get()) {
+ throw new Exception("Found events from a previous recording");
+ }
+ }
+ }
+ }
+
+ static void emitSnakeEvent(int id) {
+ SnakeEvent e = new SnakeEvent();
+ e.id = id;
+ e.commit();
+ }
+
+}