1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.jfr.api.flightrecorder;
  27 
  28 import static jdk.test.lib.Asserts.assertTrue;
  29 
  30 import java.util.Set;
  31 
  32 import jdk.jfr.Event;
  33 import jdk.jfr.Recording;
  34 import jdk.jfr.SettingControl;
  35 import jdk.jfr.SettingDefinition;
  36 
  37 /**
  38  * @test
  39  * @key jfr
  40  * @requires vm.hasJFR
  41  * @library /test/lib
  42  * @run main/othervm jdk.jfr.api.flightrecorder.TestSettingsControl
  43  */
  44 public class TestSettingsControl {
  45     static class MySettingsControl extends SettingControl {
  46 
  47         public static boolean setWasCalled;
  48 
  49         private String value = "default";
  50 
  51         @Override
  52         public String combine(Set<String> values) {
  53            StringBuilder sb = new StringBuilder();
  54             for(String s : values) {
  55                 sb.append(s).append(" ");
  56             }
  57             return sb.toString();
  58         }
  59 
  60         @Override
  61         public void setValue(String value) {
  62             setWasCalled = true;
  63             this.value = value;
  64         }
  65 
  66         @Override
  67         public String getValue() {
  68             return value;
  69         }
  70 
  71     }
  72 
  73     static class MyCustomSettingEvent extends Event {
  74         @SettingDefinition
  75         boolean mySetting(MySettingsControl msc) {
  76             return true;
  77         }
  78     }
  79 
  80     public static void main(String[] args) throws Throwable {
  81         Recording r = new Recording();
  82         r.enable(MyCustomSettingEvent.class).with("mySetting", "myvalue");
  83         r.start();
  84         MyCustomSettingEvent e = new MyCustomSettingEvent();
  85         e.commit();
  86         r.stop();
  87         r.close();
  88         assertTrue(MySettingsControl.setWasCalled, "SettingControl.setValue was not called");
  89     }
  90 }
  91 
  92 
  93 
  94