public String getString(ConfigOption<String> configOption, String overrideDefault) {
        Object o = getRawValueFromOption(configOption);
        return o == null ? overrideDefault : o.toString();
    }
Returns the value associated with the given config option as a string. If no value is mapped
under any key of the option, it returns the specified default instead of the option's default
value.

@param configOption The configuration option
@return the (default) value associated with the given config option
inlong-sort/sort-common/src/main/java/org/apache/inlong/sort/configuration/Configuration.java