/**
* Parse command line, create hive input
*
* @param args Command line arguments
* @return Parsed arguments
*/
private static Optional<BenchmarkArgs> handleCommandLine(String[] args) {
BenchmarkArgs parsedArgs = new BenchmarkArgs();
try {
Args.parse(parsedArgs, args);
} catch (IllegalArgumentException e) {
System.err.println("ERROR: " + e);
Args.usage(parsedArgs);
return Optional.absent();
}
if (parsedArgs.isHelp()) {
Args.usage(parsedArgs);
return Optional.absent();
}
return Optional.of(parsedArgs);
}
public static void main(String[] args) {
CreateUser action = new CreateUser();
try {
Args.parse(action, args);
action.execute();
} catch (IllegalArgumentException e) {
Args.usage(action);
} catch (Exception e) {
System.out.println("!!! FAILURE !!!");
e.printStackTrace();
}
}
/** Allow derived classes to add additional command line arguments */
protected void usage(@NotNull PrintStream target) {
// We should say something like
// Args.usage(target, K2JVMCompilerArguments.class);
// but currently cli-parser we are using does not support that
// a corresponding patch has been sent to the authors
// For now, we are using this:
PrintStream oldErr = System.err;
System.setErr(target);
try {
// TODO: use proper argv0
Args.usage(createArguments());
} finally {
System.setErr(oldErr);
}
}
/**
* Show the help and stop the application.
*
* @param exitCode of the application.
*/
private void helpAndDie(int exitCode) {
Args.usage(p);
System.exit(exitCode);
}