/**
* Finds an argument's value in the app's command line arguments, branding, and system properties
*
* @param argName the argument name
* @param appContext the application context
* @param singledCmdArgValue whether it's a single-valued argument
* @return an {@link Optional} containing the value or an empty {@link Optional}, if no value
* could be found
*/
private Optional<String> getArgValue(
String argName, IApplicationContext appContext, boolean singledCmdArgValue) {
// Is it in the arg list ?
if (argName == null || argName.length() == 0) return Optional.empty();
if (singledCmdArgValue) {
for (int i = 0; i < args.length; i++) {
if (("-" + argName).equals(args[i])) return Optional.of("true");
}
} else {
for (int i = 0; i < args.length; i++) {
if (("-" + argName).equals(args[i]) && i + 1 < args.length) return Optional.of(args[i + 1]);
}
}
final String brandingProperty = appContext.getBrandingProperty(argName);
return Optional.ofNullable(brandingProperty)
.map(brandingPropertyValue -> Optional.of(brandingPropertyValue))
.orElse(Optional.ofNullable(System.getProperty(argName)));
}
