1 /*
   2  * Copyright (c) 2019, 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 import java.nio.file.Paths;
  27 import jdk.jfr.Recording;
  28 import jdk.jfr.consumer.RecordedEvent;
  29 import jdk.jfr.consumer.RecordingFile;
  30 
  31 
  32 // This class is intended to run inside a container
  33 public class JfrReporter {
  34     public static final String TEST_REPORTED_CORES="TEST_REPORTED_CORES";
  35     public static final String TEST_REPORTED_MEMORY="TEST_REPORTED_MEMORY";
  36     public static final String TEST_REPORTED_PID="TEST_REPORTED_PID";
  37     public static final String TESTCASE_CPU="cpu";
  38     public static final String TESTCASE_MEMORY="memory";
  39     public static final String TESTCASE_PROCESS="process";
  40 
  41     public static void main(String[] args) throws Exception {
  42         String testCase = args[0];
  43         System.out.println("Testcase: " + testCase);
  44         switch (testCase) {
  45         case TESTCASE_CPU:
  46             RecordedEvent event = testEvent("jdk.CPUInformation", "cpu.jfr");
  47             System.out.println(TEST_REPORTED_CORES + "=" + event.getInt("cores"));
  48             break;
  49         case TESTCASE_MEMORY:
  50             event = testEvent("jdk.PhysicalMemory", "memory.jfr");
  51             System.out.println(TEST_REPORTED_MEMORY + "=" + event.getLong("totalSize"));
  52             break;
  53         case TESTCASE_PROCESS:
  54             event = testEvent("jdk.SystemProcess", "process.jfr");
  55             System.out.println(TEST_REPORTED_PID + "=" + event.getString("pid"));
  56             break;
  57         default:
  58             throw new IllegalArgumentException("Invalid test case");
  59         }
  60     }
  61 
  62     private static RecordedEvent testEvent(String event, String recordingPath) throws Exception {
  63         System.out.println("========= Testing event: " + event);
  64         Recording r = new Recording();
  65         r.enable(event);
  66         r.setDestination(Paths.get("tmp", recordingPath));
  67         r.start();
  68         r.stop();
  69 
  70         RecordedEvent recordedEvent = RecordingFile.readAllEvents(r.getDestination()).get(0);
  71         System.out.println("RecordedEvent: " + recordedEvent);
  72         return recordedEvent;
  73     }
  74 }