public String execRecognizer() {
try {
String inputFile = new File(tmpdir, "input").getAbsolutePath();
String[] args =
new String[] {"java", "-classpath", tmpdir + pathSep + CLASSPATH, "Test", inputFile};
// String cmdLine = "java -classpath "+CLASSPATH+pathSep+tmpdir+" Test " + new File(tmpdir,
// "input").getAbsolutePath();
// System.out.println("execParser: "+cmdLine);
Process process = Runtime.getRuntime().exec(args, null, new File(tmpdir));
StreamVacuum stdoutVacuum = new StreamVacuum(process.getInputStream());
StreamVacuum stderrVacuum = new StreamVacuum(process.getErrorStream());
stdoutVacuum.start();
stderrVacuum.start();
process.waitFor();
stdoutVacuum.join();
stderrVacuum.join();
String output = null;
output = stdoutVacuum.toString();
if (stderrVacuum.toString().length() > 0) {
this.stderrDuringParse = stderrVacuum.toString();
System.err.println("exec stderrVacuum: " + stderrVacuum);
}
return output;
} catch (Exception e) {
System.err.println("can't exec recognizer");
e.printStackTrace(System.err);
}
return null;
}
protected boolean compile(String fileName) {
String compiler = "javac";
String classpathOption = "-classpath";
if (jikes != null) {
compiler = jikes;
classpathOption = "-bootclasspath";
}
String[] args =
new String[] {
compiler,
"-d",
tmpdir,
classpathOption,
tmpdir + pathSep + CLASSPATH,
tmpdir + "/" + fileName
};
String cmdLine =
compiler
+ " -d "
+ tmpdir
+ " "
+ classpathOption
+ " "
+ tmpdir
+ pathSep
+ CLASSPATH
+ " "
+ fileName;
// System.out.println("compile: "+cmdLine);
File outputDir = new File(tmpdir);
try {
Process process = Runtime.getRuntime().exec(args, null, outputDir);
StreamVacuum stdout = new StreamVacuum(process.getInputStream());
StreamVacuum stderr = new StreamVacuum(process.getErrorStream());
stdout.start();
stderr.start();
process.waitFor();
stdout.join();
stderr.join();
if (stdout.toString().length() > 0) {
System.err.println("compile stdout from: " + cmdLine);
System.err.println(stdout);
}
if (stderr.toString().length() > 0) {
System.err.println("compile stderr from: " + cmdLine);
System.err.println(stderr);
}
int ret = process.exitValue();
return ret == 0;
} catch (Exception e) {
System.err.println("can't exec compilation");
e.printStackTrace(System.err);
return false;
}
}
public String execClass(String className) {
/* HOW TO GET STDOUT?
try {
ClassLoader cl_new = new DirectoryLoader(new File(tmpdir));
Class compiledClass = cl_new.loadClass(className);
Method m = compiledClass.getMethod("main");
m.invoke(null);
} catch (Exception ex) {
ex.printStackTrace(System.err);
}
*/
try {
String[] args =
new String[] {
"java",
"-classpath",
tmpdir + pathSep + CLASSPATH,
className,
new File(tmpdir, "input").getAbsolutePath()
};
// String cmdLine = "java -classpath "+CLASSPATH+pathSep+tmpdir+" Test " + new File(tmpdir,
// "input").getAbsolutePath();
// System.out.println("execParser: "+cmdLine);
Process process = Runtime.getRuntime().exec(args, null, new File(tmpdir));
StreamVacuum stdoutVacuum = new StreamVacuum(process.getInputStream());
StreamVacuum stderrVacuum = new StreamVacuum(process.getErrorStream());
stdoutVacuum.start();
stderrVacuum.start();
process.waitFor();
stdoutVacuum.join();
stderrVacuum.join();
String output = null;
output = stdoutVacuum.toString();
if (stderrVacuum.toString().length() > 0) {
this.stderrDuringParse = stderrVacuum.toString();
System.err.println("exec stderrVacuum: " + stderrVacuum);
}
return output;
} catch (Exception e) {
System.err.println("can't exec recognizer");
e.printStackTrace(System.err);
}
return null;
}