test/jdk/jdk/jfr/api/consumer/streaming/TestRepositoryMigration.java
changeset 58863 c16ac7a2eba4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/api/consumer/streaming/TestRepositoryMigration.java	Wed Oct 30 19:43:52 2019 +0100
@@ -0,0 +1,108 @@
+/*
+ * 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);
+                }
+            }
+        }
+    }
+
+}