public <T> List<T> getTrailing(CliConverter<T> converter) {
List<T> result = new ArrayList<>();
for (String value : trailing) {
try {
result.add(converter.convert(value));
} catch (Exception e) {
throw new ErrorMessage(e, "Failed to parse %s", value);
}
}
return result;
}
public <T> T get(String option, CliConverter<T> converter) {
if (!switches.contains(option)) {
throw new IllegalStateException(
String.format("Expected option name to be one of %s, but got %s", switches, option));
}
String value = values.get(option);
try {
return converter.convert(value);
} catch (Exception e) {
throw new ErrorMessage(e, "Failed to parse %s %s", option, value);
}
}
public <T> List<T> getMulti(String option, CliConverter<T> converter) {
List<String> values = multiValues.get(option);
if (values == null || values.isEmpty()) {
// value must have been specified less than twice
T value = get(option, converter);
return value == null ? Collections.<T>emptyList() : Collections.singletonList(value);
}
List<T> result = new ArrayList<>();
for (String value : values) {
try {
result.add(converter.convert(value));
} catch (Exception e) {
throw new ErrorMessage(e, "Failed to parse %s %s", option, value);
}
}
return result;
}
