test/jdk/jdk/jfr/api/consumer/streaming/TestFromFile.java
branchJEP-349-branch
changeset 57361 53dccc90a5be
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/api/consumer/streaming/TestFromFile.java	Fri May 17 18:03:14 2019 +0200
@@ -0,0 +1,91 @@
+/*
+ * 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.Path;
+import java.util.concurrent.atomic.AtomicLong;
+
+import jdk.jfr.Event;
+import jdk.jfr.consumer.EventStream;
+
+/**
+ * @test
+ * @summary Verifies that it is possible to stream contents from a file
+ * @key jfr
+ * @requires vm.hasJFR
+ * @library /test/lib
+ * @run main/othervm jdk.jfr.api.consumer.streaming.TestFromFile
+ */
+public class TestFromFile {
+
+    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);
+//
+//            testIterator(path);
+//            testConsumer(path);
+//        }
+    }
+
+    static void testConsumer(Path path) throws Exception {
+        AtomicLong counter = new AtomicLong();
+        try (EventStream es = EventStream.openFile(path)) {
+            es.onEvent(e -> {
+                counter.incrementAndGet();
+            });
+            es.startAsync();
+            if (counter.get() != 6) {
+                throw new Exception("Expected 6 event, but got " + counter.get());
+            }
+            es.awaitTermination();
+        }
+    }
+
+    static void emitSnakeEvent(int id) {
+        SnakeEvent e = new SnakeEvent();
+        e.id = id;
+        e.commit();
+    }
+
+}