public String usage() {
String progName = mProgName != null ? mProgName : "progname";
String optsString1 =
(mValidOptionNames != null && mValidOptionNames.size() > 0) ? " <options>" : "";
String nonOptArgsString =
(mNonOptParamNames != null && mNonOptParamNames.size() > 0)
? " <" + StringUtils.listToString(mNonOptParamNames, "> <") + ">"
: "";
String optsString2 =
(mValidOptionNames != null && mValidOptionNames.size() > 0)
? "\nOPTIONS:\n" + optsWithValString() + "\n" + optsWithoutValString()
: "";
return "Usage: " + progName + optsString1 + nonOptArgsString + optsString2;
}
public String toString() {
// @todo: improve?
List fields = formatFields();
return StringUtils.listToString(fields, " ");
}