| /* |
| * Copyright (c) 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.flightrecorder; |
| |
| import static jdk.test.lib.Asserts.assertEquals; |
| import static jdk.test.lib.Asserts.assertTrue; |
| |
| import java.time.Duration; |
| import java.util.Map; |
| |
| import jdk.jfr.Event; |
| import jdk.jfr.EventType; |
| import jdk.jfr.Recording; |
| |
| /** |
| * @test |
| * @key jfr |
| * @requires vm.hasJFR |
| * @library /test/lib |
| * @run main/othervm jdk.jfr.api.flightrecorder.TestGetSettings |
| */ |
| public class TestGetSettings { |
| |
| public static void main(String[] args) throws Throwable { |
| final long minThresholdNanos = 1000000; |
| final String dummyEventPath = "mydummy/event/path"; |
| final String myEventSettingName = String.valueOf(EventType.getEventType(MyEvent.class).getId()); |
| System.out.println("myEventSettingName=" + myEventSettingName); |
| |
| // Settings should be merged to include the most number of events (minimum threshold). |
| Recording r1 = new Recording(); |
| r1.enable(MyEvent.class).withThreshold(Duration.ofNanos(minThresholdNanos * 3)); |
| r1.enable(MyEvent.class).withThreshold(Duration.ofNanos(minThresholdNanos * 2)); |
| r1.enable(dummyEventPath).withThreshold(Duration.ofNanos(minThresholdNanos)); |
| r1.start(); |
| |
| ExpectedSetting[] expectedR1 = { |
| new ExpectedSetting(myEventSettingName, "enabled", "true"), |
| new ExpectedSetting(myEventSettingName, "threshold", Long.toString(minThresholdNanos * 2) + " ns"), |
| new ExpectedSetting(dummyEventPath, "enabled", "true"), |
| new ExpectedSetting(dummyEventPath, "threshold", Long.toString(minThresholdNanos) + " ns"), |
| }; |
| |
| verifySettings(r1.getSettings(), expectedR1); |
| |
| // Start another recording. Recorder settings should be merged from both recordings. |
| Recording r2 = new Recording(); |
| r2.enable(MyEvent.class).withThreshold(Duration.ofNanos(minThresholdNanos)); |
| r2.disable(dummyEventPath); |
| r2.start(); |
| |
| ExpectedSetting[] expectedR2 = { |
| new ExpectedSetting(myEventSettingName, "enabled", "true"), |
| new ExpectedSetting(myEventSettingName, "threshold", Long.toString(minThresholdNanos) + " ns"), |
| new ExpectedSetting(dummyEventPath, "enabled", "false") |
| }; |
| |
| verifySettings(r1.getSettings(), expectedR1); |
| verifySettings(r2.getSettings(), expectedR2); |
| |
| // Stop first recording. Recorder should use settings from r2. |
| r1.stop(); |
| verifySettings(r2.getSettings(), expectedR2); |
| |
| r2.stop(); |
| r1.close(); |
| r2.close(); |
| } |
| |
| private static void verifySettings(Map<String, String> settings, ExpectedSetting ... expectedSettings) { |
| for (String name : settings.keySet()) { |
| System.out.printf("Settings: %s=%s%n", name, settings.get(name)); |
| } |
| for (ExpectedSetting expected : expectedSettings) { |
| boolean isFound = false; |
| for (String name : settings.keySet()) { |
| if (name.contains(expected.name) && name.contains(expected.option)) { |
| final String value = settings.get(name); |
| String msg = String.format("got: %s=%s, expected: %s", name, value, expected.toString()); |
| assertEquals(value, expected.value, msg); |
| System.out.println("OK: " + msg); |
| isFound = true; |
| break; |
| } |
| } |
| assertTrue(isFound, "Missing setting " + expected.toString()); |
| } |
| } |
| |
| private static class MyEvent extends Event { |
| } |
| |
| private static class ExpectedSetting { |
| String name; |
| String option; |
| String value; |
| |
| public ExpectedSetting(String name, String option, String value) { |
| this.name = name; |
| this.option = option; |
| this.value = value; |
| } |
| |
| @Override |
| public String toString() { |
| return String.format("name=%s, option=%s, value=%s", name, option, value); |
| } |
| } |
| } |