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.jvm;

    27 

    28 import java.io.IOException;

    29 import java.nio.file.Files;

    30 import java.nio.file.Paths;

    31 import java.util.ArrayList;

    32 import java.util.List;

    33 

    34 /*

    35  * @test TestLogOutput

    36  * @key jfr

    37  * @summary Sanity test jfr logging output

    38  * @library /test/lib

    39  * @run main/othervm -Xlog:disable -Xlog:jfr*=trace:file=jfr_trace.txt -XX:StartFlightRecording=duration=1s,filename=recording.jfr jdk.jfr.jvm.TestLogOutput

    40  */

    41 public class TestLogOutput {

    42     public static void main(String[] args) throws Exception {

    43         final String fileName = "jfr_trace.txt";

    44         final List<String>findWhat = new ArrayList<>();

    45         findWhat.add("Starting up Jfr startup recording");

    46         findWhat.add("Flight Recorder initialized");

    47         boolean passed = false;

    48         List<String> matches = new ArrayList<String>(findWhat);

    49 

    50         do {

    51             List<String> lines;

    52             try {

    53                 lines = Files.readAllLines(Paths.get(fileName));

    54             } catch (IOException e) {

    55                 throw new Error(e);

    56             }

    57             for (String l : lines) {

    58                 for (String m : matches) {

    59                     if (l.toString().contains(m)) {

    60                         matches.remove(m);

    61                         break;

    62                     }

    63                 }

    64             }

    65             if (matches.size() < 1) {

    66                 passed = true;

    67                 break;

    68             }

    69             if (lines.size() > 100) {

    70                 break; /* did not find it */

    71             }

    72         } while(!passed);

    73 

    74         if (!passed) {

    75             throw new Error("Not found " + findWhat  + " in stream");

    76         }

    77 

    78        System.out.println("PASSED");

    79     }

    80 }