/*
* Copyright ( c ) 2016 , 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 .
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package jdk.test.lib.jfr;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
/**
* Helper class for running applications with enabled JFR recording
*/
public class AppExecutorHelper {
/**
* Executes an application with enabled JFR and writes collected events
* to the given output file .
* Which events to track and other parameters are taken from the setting . jfc file .
*
* @ param setting JFR settings file ( optional )
* @ param jfrFilename JFR resulting recording filename ( optional )
* @ param additionalVMFlags additional VM flags passed to the java ( optional )
* @ param className name of the class to execute
* @ param classArguments arguments passed to the class ( optional )
* @ return output analyzer for executed application
*/
public static OutputAnalyzer executeAndRecord(String settings, String jfrFilename, String[] additionalVmFlags,
String className, String... classArguments) throws Exception {
List<String> arguments = new ArrayList<>();
String baseStartFlightRecording = "-XX:StartFlightRecording" ;
String additionalStartFlightRecording = "" ;
if (additionalVmFlags != null ) {
Collections.addAll(arguments, additionalVmFlags);
}
if (settings != null & jfrFilename != null ) {
additionalStartFlightRecording = String.format("=settings=%s,filename=%s" , settings, jfrFilename);
} else if (settings != null ) {
additionalStartFlightRecording = String.format("=settings=%s" , settings);
} else if (jfrFilename != null ) {
additionalStartFlightRecording = String.format("=filename=%s" , jfrFilename);
}
arguments.add(baseStartFlightRecording + additionalStartFlightRecording);
arguments.add(className);
if (classArguments.length > 0 ) {
Collections.addAll(arguments, classArguments);
}
ProcessBuilder pb = ProcessTools.createTestJvm(arguments);
return ProcessTools.executeProcess(pb);
}
}
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