@Override
public Optional<String> getString(String elementKey) {
ConfigElement element = elements.get(elementKey);
if (element == null || isNullOrEmpty(element.getValue())) {
return Optional.absent();
}
return Optional.of(element.getValue());
}
@Override
public Optional<Boolean> getBoolean(String elementKey) {
ConfigElement element = elements.get(elementKey);
if (element == null || isNullOrEmpty(element.getValue())) {
return Optional.absent();
}
return Optional.of(TRUE_VALUES.contains(element.getValue().toLowerCase(Locale.ENGLISH)));
}
@Override
public Optional<Integer> getInt(String elementKey) {
ConfigElement element = elements.get(elementKey);
if (element == null || isNullOrEmpty(element.getValue())) {
return Optional.absent();
}
try {
return Optional.of(Integer.parseInt(element.getValue()));
} catch (NumberFormatException e) {
throw new RuntimeException(
"can't access " + element + " as int" + " (parse exception " + e.getMessage() + ")");
}
}