protected List<LoadBalancerVO> findExistingLoadBalancers(final String lbName, final Long ipId, final Long accountId, final Long domainId, final Integer publicPort) { final SearchBuilder<LoadBalancerVO> sb = _lbDao.createSearchBuilder(); sb.and("name", sb.entity().getName(), SearchCriteria.Op.EQ); sb.and("accountId", sb.entity().getAccountId(), SearchCriteria.Op.EQ); sb.and("publicPort", sb.entity().getSourcePortStart(), SearchCriteria.Op.EQ); if (ipId != null) { sb.and("sourceIpAddress", sb.entity().getSourceIpAddressId(), SearchCriteria.Op.EQ); } if (domainId != null) { sb.and("domainId", sb.entity().getDomainId(), SearchCriteria.Op.EQ); } if (publicPort != null) { sb.and("publicPort", sb.entity().getSourcePortStart(), SearchCriteria.Op.EQ); } final SearchCriteria<LoadBalancerVO> sc = sb.create(); sc.setParameters("name", lbName); sc.setParameters("accountId", accountId); if (ipId != null) { sc.setParameters("sourceIpAddress", ipId); } if (domainId != null) { sc.setParameters("domainId", domainId); } if (publicPort != null) { sc.setParameters("publicPort", publicPort); } final List<LoadBalancerVO> lbs = _lbDao.search(sc, null); return lbs == null || lbs.size() == 0 ? null : lbs; }