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/*
* Copyright (c) 2013, 2015, 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.
*
* 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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.io.IOException;
import java.io.File;
import java.nio.file.Files;
import java.util.Arrays;
import jdk.testlibrary.ProcessTools;
import jdk.testlibrary.Utils;
import jdk.testlibrary.ProcessThread;
/*
* Utility functions for test runners.
* (Test runner = class that launch a test)
*/
public class RunnerUtil {
/**
* The Application process must be run concurrently with our tests since
* the tests will attach to the Application.
* We will run the Application process in a separate thread.
*
* The Application must be started with flag "-Xshare:off" for the Retransform
* test in TestBasics to pass on all platforms.
*
* The Application will write its pid and shutdownPort in the given outFile.
*/
public static ProcessThread startApplication(String... additionalOpts) throws Throwable {
String classpath = System.getProperty("test.class.path", ".");
String[] myArgs = concat(additionalOpts, new String [] {
"-XX:+UsePerfData", "-XX:+EnableDynamicAgentLoading",
"-Dattach.test=true", "-classpath", classpath, "Application"
});
String[] args = Utils.addTestJavaOpts(myArgs);
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args);
ProcessThread pt = new ProcessThread("runApplication", (line) -> line.equals(Application.READY_MSG), pb);
pt.start();
return pt;
}
public static String[] concat(String[] a, String[] b) {
if (a == null) {
return b;
}
if (b == null) {
return a;
}
int aLen = a.length;
int bLen = b.length;
String[] c = new String[aLen + bLen];
System.arraycopy(a, 0, c, 0, aLen);
System.arraycopy(b, 0, c, aLen, bLen);
return c;
}
/**
* Will stop the running Application.
* First tries to shutdown nicely by connecting to the shut down port.
* If that fails, the process will be killed hard with stopProcess().
*
* If the nice shutdown fails, then an Exception is thrown and the test should fail.
*
* @param processThread The process to stop.
*/
public static void stopApplication(ProcessThread processThread) throws Throwable {
if (processThread == null) {
System.out.println("RunnerUtil.stopApplication ignored since proc is null");
return;
}
try {
System.out.println("RunnerUtil.stopApplication waiting for shutdown");
processThread.sendMessage(Application.SHUTDOWN_MSG);
processThread.joinAndThrow();
processThread.getOutput().shouldHaveExitValue(0);
} catch (Throwable t) {
System.out.println("RunnerUtil.stopApplication failed. Will kill it hard: " + t);
processThread.stopProcess();
throw t;
}
}
/**
* Creates a jar file.
* @param args Command to the jar tool.
*/
public static void createJar(String... args) {
System.out.println("Running: jar " + Arrays.toString(args));
sun.tools.jar.Main jar = new sun.tools.jar.Main(System.out, System.err, "jar");
if (!jar.run(args)) {
throw new RuntimeException("jar failed: args=" + Arrays.toString(args));
}
}
/**
* Read the content of a file.
* @param file The file to read.
* @return The file content or null if file does not exists.
*/
public static String readFile(File file) throws IOException {
if (!file.exists()) {
return null;
}
try {
byte[] bytes = Files.readAllBytes(file.toPath());
String content = new String(bytes);
return content;
} catch (IOException e) {
e.printStackTrace();
throw e;
}
}
}
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