public int exec() {
try {
executing = true;
ProcessBuilder pb = new ProcessBuilder(commandArgs);
if (pwd != null) pb.directory(new File(pwd));
if (debug) {
Gpr.debug("PWD: " + pwd);
for (String arg : commandArgs) Gpr.debug("ARGS: " + arg);
}
pr = pb.start();
// ---
// Prepare & start stdout/sdterr reader processes
// ---
stdErrGobbler = new StreamGobbler(pr.getErrorStream(), true); // StdErr
stdOutGobbler = new StreamGobbler(pr.getInputStream(), false); // StdOut
// Quiet? => Do not show
if (quietStderr) stdErrGobbler.setQuietMode();
if (quietStdout) stdOutGobbler.setQuietMode();
// Keep a copy in memory?
stdErrGobbler.setSaveLinesInMemory(saveStd);
stdOutGobbler.setSaveLinesInMemory(saveStd);
// Binary?
stdErrGobbler.setBinary(binaryStderr);
stdOutGobbler.setBinary(binaryStdout);
// Redirect?
if (redirectStderr != null) stdErrGobbler.setRedirectTo(redirectStderr);
if (redirectStdout != null) stdOutGobbler.setRedirectTo(redirectStdout);
// Filter stdout
stdOutGobbler.setLineFilter(stdOutFilter);
// Set this object as the progress monitor
stdErrGobbler.setProgress(this);
stdOutGobbler.setProgress(this);
// Start gobblers
stdErrGobbler.start();
stdOutGobbler.start();
// Assign StdIn
stdin = pr.getOutputStream();
// ---
// Start process & wait until completion
// ---
started = true;
// Wait for the process to finish and store exit value
exitValue = pr.waitFor();
// Wait for gobblers to finish processing the remaining of STDIN & STDERR
while (stdOutGobbler.isRunning() || stdErrGobbler.isRunning()) {
Thread.sleep(100);
}
if (debug && (exitValue != 0)) Gpr.debug("Exit value: " + exitValue);
} catch (Exception e) {
error = e.getMessage();
exitValue = -1;
if (showExceptions) e.printStackTrace();
} finally {
// We are done. Either process finished or an exception was raised.
started = true;
executing = false;
if (objetcToNotify != null) {
synchronized (objetcToNotify) {
objetcToNotify.notify();
}
}
}
return exitValue;
}
