public void parse(String[] args) throws Exception {
Assert.preCondition(args != null);
if (this.commandLineSpec.getRequiredArgNum() > args.length) this.helpHandler.handleHelp();
int compulsoryArgs = 0;
int i = 0;
ArgSpec spec;
String arg;
while (i < args.length) {
while (args[i].startsWith(argumentPrefix) == false) i++;
// Now we have the first desired arg.
arg = args[i].substring(argumentPrefix.length());
if (this.isHelpArg(arg)) this.helpHandler.handleHelp();
spec = this.commandLineSpec.getArg(arg);
if (spec == null) {
spec = this.commandLineSpec.getRequiredArg(arg);
if (spec == null) break;
// Make sure that the repetition of the same argument
// does not get counted more than once.
if (this.argList.get(arg) == null) compulsoryArgs++;
}
ArgValue argVal = new ArgValue(spec, args, ++i, spec.argNum());
this.argList.put(spec.getName(), argVal);
argVal = null;
i += spec.argNum();
}
if (compulsoryArgs < this.commandLineSpec.getRequiredArgNum()) {
this.helpHandler.handleHelp();
// throw new InvalidArgumentValueException("Required Argument Missing!");
}
}
public ArgValue getArg(ArgSpec spec) throws AssertionException {
Assert.preCondition(spec != null);
return (ArgValue) this.argList.get(spec.getName());
}
public ArgParser(CommandLineSpec spec, HelpHandler helpHandler, String argumentPrefix) {
Assert.preCondition(argumentPrefix != null && spec != null);
this.argumentPrefix = argumentPrefix;
this.commandLineSpec = spec;
this.helpHandler = helpHandler;
}
public ArgValue getArg(String name) {
Assert.preCondition(name != null);
return (ArgValue) this.argList.get(name);
}