1 /*

     2  * Copyright (c) 2016, 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.test.lib.jfr;

    27 

    28 import java.util.ArrayList;

    29 import java.util.Collections;

    30 import java.util.List;

    31 

    32 import jdk.test.lib.process.OutputAnalyzer;

    33 import jdk.test.lib.process.ProcessTools;

    34 

    35 

    36 /**

    37  * Helper class for running applications with enabled JFR recording

    38  */

    39 public class AppExecutorHelper {

    40 

    41     /**

    42      * Executes an application with enabled JFR and writes collected events

    43      * to the given output file.

    44      * Which events to track and other parameters are taken from the setting .jfc file.

    45      *

    46      * @param setting JFR settings file(optional)

    47      * @param jfrFilename JFR resulting recording filename(optional)

    48      * @param additionalVMFlags additional VM flags passed to the java(optional)

    49      * @param className name of the class to execute

    50      * @param classArguments arguments passed to the class(optional)

    51      * @return output analyzer for executed application

    52      */

    53     public static OutputAnalyzer executeAndRecord(String settings, String jfrFilename, String[] additionalVmFlags,

    54                                                   String className, String... classArguments) throws Exception {

    55         List<String> arguments = new ArrayList<>();

    56         String baseStartFlightRecording = "-XX:StartFlightRecording";

    57         String additionalStartFlightRecording = "";

    58 

    59         if (additionalVmFlags != null) {

    60             Collections.addAll(arguments, additionalVmFlags);

    61         }

    62 

    63         if (settings != null & jfrFilename != null) {

    64             additionalStartFlightRecording = String.format("=settings=%s,filename=%s", settings, jfrFilename);

    65         } else if (settings != null) {

    66             additionalStartFlightRecording = String.format("=settings=%s", settings);

    67         } else if (jfrFilename != null) {

    68             additionalStartFlightRecording = String.format("=filename=%s", jfrFilename);

    69         }

    70         arguments.add(baseStartFlightRecording + additionalStartFlightRecording);

    71 

    72         arguments.add(className);

    73         if (classArguments.length > 0) {

    74             Collections.addAll(arguments, classArguments);

    75         }

    76 

    77         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true, arguments.toArray(new String[0]));

    78         return ProcessTools.executeProcess(pb);

    79     }

    80 }