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/*
* Copyright (c) 2012, 2013, 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.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/*
* support infrastructure to invoke a java class from the command line
*/
class LUtils {
static final com.sun.tools.javac.Main javac =
new com.sun.tools.javac.Main();
static final File cwd = new File(".").getAbsoluteFile();
static final String JAVAHOME = System.getProperty("java.home");
static final boolean isWindows =
System.getProperty("os.name", "unknown").startsWith("Windows");
static final File JAVA_BIN_FILE = new File(JAVAHOME, "bin");
static final File JAVA_CMD = new File(JAVA_BIN_FILE,
isWindows ? "java.exe" : "java");
static final File JAR_BIN_FILE = new File(JAVAHOME, "bin");
static final File JAR_CMD = new File(JAR_BIN_FILE,
isWindows ? "jar.exe" : "jar");
protected LUtils() {
}
public static void compile(String... args) {
if (javac.compile(args) != 0) {
throw new RuntimeException("compilation fails");
}
}
static void createFile(File outFile, List<String> content) {
try {
Files.write(outFile.getAbsoluteFile().toPath(), content,
Charset.defaultCharset());
} catch (IOException ex) {
throw new RuntimeException(ex);
}
}
static File getClassFile(File javaFile) {
return javaFile.getName().endsWith(".java")
? new File(javaFile.getName().replace(".java", ".class"))
: null;
}
static String getSimpleName(File inFile) {
String fname = inFile.getName();
return fname.substring(0, fname.indexOf("."));
}
static TestResult doExec(String... cmds) {
return doExec(null, null, cmds);
}
/*
* A method which executes a java cmd and returns the results in a container
*/
static TestResult doExec(Map<String, String> envToSet,
java.util.Set<String> envToRemove, String... cmds) {
String cmdStr = "";
for (String x : cmds) {
cmdStr = cmdStr.concat(x + " ");
}
ProcessBuilder pb = new ProcessBuilder(cmds);
Map<String, String> env = pb.environment();
if (envToRemove != null) {
for (String key : envToRemove) {
env.remove(key);
}
}
if (envToSet != null) {
env.putAll(envToSet);
}
BufferedReader rdr = null;
try {
List<String> outputList = new ArrayList<>();
pb.redirectErrorStream(true);
Process p = pb.start();
rdr = new BufferedReader(new InputStreamReader(p.getInputStream()));
String in = rdr.readLine();
while (in != null) {
outputList.add(in);
in = rdr.readLine();
}
p.waitFor();
p.destroy();
return new TestResult(cmdStr, p.exitValue(), outputList,
env, new Throwable("current stack of the test"));
} catch (Exception ex) {
ex.printStackTrace();
throw new RuntimeException(ex.getMessage());
}
}
static class TestResult {
String cmd;
int exitValue;
List<String> testOutput;
Map<String, String> env;
Throwable t;
public TestResult(String str, int rv, List<String> oList,
Map<String, String> env, Throwable t) {
cmd = str;
exitValue = rv;
testOutput = oList;
this.env = env;
this.t = t;
}
void assertZero(String message) {
if (exitValue != 0) {
System.err.println(this);
throw new RuntimeException(message);
}
}
@Override
public String toString() {
StringWriter sw = new StringWriter();
PrintWriter status = new PrintWriter(sw);
status.println("Cmd: " + cmd);
status.println("Return code: " + exitValue);
status.println("Environment variable:");
for (String x : env.keySet()) {
status.println("\t" + x + "=" + env.get(x));
}
status.println("Output:");
for (String x : testOutput) {
status.println("\t" + x);
}
status.println("Exception:");
status.println(t.getMessage());
t.printStackTrace(status);
return sw.getBuffer().toString();
}
}
}
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