code: public static boolean checkForServiceAccount(String userLdapDN, ApiSettings settings,Map<String,String> allowedUsers,String author,List<String> commitFiles,boolean isCommit,AuditReviewResponse auditReviewResponse) {
          List<String> serviceAccountOU = settings.getServiceAccountOU();
          boolean isValid = false;
          if(!MapUtils.isEmpty(allowedUsers) && isCommit){
              isValid = isValidServiceAccount(author,allowedUsers,commitFiles);
              if(isValid){
                  auditReviewResponse.addAuditStatus(CodeReviewAuditStatus.DIRECT_COMMIT_CHANGE_WHITELISTED_ACCOUNT);
              }
          }
          if (!CollectionUtils.isEmpty(serviceAccountOU) && StringUtils.isNotBlank(userLdapDN) && !isValid) {
              try {
                  String userLdapDNParsed = LdapUtils.getStringValue(new LdapName(userLdapDN), "OU");
                  List<String> matches = serviceAccountOU.stream().filter(it -> it.contains(userLdapDNParsed)).collect(Collectors.toList());
                  isValid =  CollectionUtils.isNotEmpty(matches);
              } catch (InvalidNameException e) {
                  LOGGER.error("Error parsing LDAP DN:" + userLdapDN);
              }
          }
          else {
              LOGGER.info("API Settings missing service account RDN");
          }
          return isValid;
      }
docs: Check if the passed in account is a Service Account or not by comparing
  against list of valid ServiceAccountOU in ApiSettings.
  
  @param userLdapDN
  @param settings
  @return