/**
* Copyright (c) 2014 Richard Warburton (richard.warburton@gmail.com)
* <p>
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
* <p>
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
* <p>
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
**/
package com.insightfullogic.honest_profiler.testing_utilities;
import com.insightfullogic.honest_profiler.core.platform.Platforms;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.*;
import java.util.function.Consumer;
public class NonInteractiveAgentRunner
{
private static final Logger logger = LoggerFactory.getLogger(NonInteractiveAgentRunner.class);
private final String className;
private final String args;
private String errorMessage;
private boolean isSuccessful;
private NonInteractiveAgentRunner(final String className, final String args)
{
this.className = className;
this.args = args;
isSuccessful = true;
}
public static void run(final String className, final Consumer<NonInteractiveAgentRunner> handler) throws IOException
{
run(className, (String) null, handler);
}
public static void run(final String className,
final String[] args,
final Consumer<NonInteractiveAgentRunner> handler) throws IOException
{
run(className, String.join(",", args), handler);
}
public static void run(final String className,
final String args,
final Consumer<NonInteractiveAgentRunner> handler) throws IOException
{
NonInteractiveAgentRunner runner = new NonInteractiveAgentRunner(className, args);
runner.startProcess();
handler.accept(runner);
}
private void startProcess() throws IOException
{
String java = System.getProperty("java.home") + "/bin/java";
String agentArg = "-agentpath:build/liblagent" + Platforms.getDynamicLibraryExtension() + (args != null ? "=" + args : "");
// Eg: java -agentpath:build/liblagent.so -cp target/classes/ AgentApiExample
Process process = new ProcessBuilder()
.command(java, agentArg, "-cp", "target/classes/", className)
.redirectErrorStream(true)
.start();
StringBuilder outputBuffer = new StringBuilder();
try (BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream())))
{
String line;
while ((line = reader.readLine()) != null) {
if (isSuccessful && line.contains("Exception in thread"))
isSuccessful = false;
outputBuffer.append(line).append('\n');
}
}
errorMessage = outputBuffer.toString();
}
public boolean isSuccessful()
{
return isSuccessful;
}
public String getErrorMessages() {
return errorMessage;
}
}