test/jdk/jdk/jfr/api/recorder/TestRecorderListener.java
changeset 50113 caf115bb98ad
child 51214 67736b4846a0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/api/recorder/TestRecorderListener.java	Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2016, 2018, 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.recorder;
+
+import java.util.concurrent.CountDownLatch;
+
+import jdk.jfr.FlightRecorder;
+import jdk.jfr.FlightRecorderListener;
+import jdk.jfr.Recording;
+import jdk.jfr.RecordingState;
+
+/*
+ * @test TestRecorderListener
+ *
+ * @key jfr
+ * @run main/othervm jdk.jfr.api.recorder.TestRecorderListener
+ */
+public class TestRecorderListener {
+
+    static class Listener implements FlightRecorderListener {
+
+        private final CountDownLatch latch = new CountDownLatch(1);
+        private final RecordingState waitFor;
+
+        public Listener(RecordingState state) {
+            waitFor = state;
+        }
+
+        @Override
+        public void recordingStateChanged(Recording recording) {
+            System.out.println("Listener: recording=" + recording.getName() + " state=" + recording.getState());
+            RecordingState rs = recording.getState();
+            if (rs == waitFor) {
+                latch.countDown();
+            }
+        }
+
+        public void waitFor() throws InterruptedException {
+            latch.await();
+        }
+    }
+
+    public static void main(String... args) throws Exception {
+        Listener recordingListener = new Listener(RecordingState.RUNNING);
+        FlightRecorder.addListener(recordingListener);
+
+        Listener stoppedListener = new Listener(RecordingState.STOPPED);
+        FlightRecorder.addListener(stoppedListener);
+
+        Listener finishedListener = new Listener(RecordingState.CLOSED);
+        FlightRecorder.addListener(finishedListener);
+
+        Recording recording = new Recording();
+        if (recording.getState() != RecordingState.NEW) {
+            recording.close();
+            throw new Exception("New recording should be in NEW state");
+        }
+
+        recording.start();
+        recordingListener.waitFor();
+
+        recording.stop();
+        stoppedListener.waitFor();
+
+        recording.close();
+        finishedListener.waitFor();
+
+        testDefaultrecordingStateChangedListener();
+
+    }
+
+    private static class DummyListener implements FlightRecorderListener {
+
+    }
+
+    private static void testDefaultrecordingStateChangedListener() {
+        FlightRecorder.addListener(new DummyListener());
+        Recording recording = new Recording();
+        recording.start();
+        recording.stop();
+        recording.close();
+    }
+}