IsmSecurityGroupApi.java 文件源码

private SecurityGroupEntity findSecurityGroupByName(final String name, DeviceEntity device) throws Exception {

        return this.txControl.supports(() -> {
            CriteriaBuilder cb = IsmSecurityGroupApi.this.em.getCriteriaBuilder();
            CriteriaQuery<SecurityGroupEntity> query = cb.createQuery(SecurityGroupEntity.class);
            Root<SecurityGroupEntity> root = query.from(SecurityGroupEntity.class);

            query.select(root).where(cb.equal(root.get("name"), name), cb.equal(root.get("device"), device));

            SecurityGroupEntity result = null;
            try {
                result = IsmSecurityGroupApi.this.em.createQuery(query).getSingleResult();
            } catch (NoResultException e) {
                LOG.error(
                        String.format("Cannot find Security group with name %s under device %s", name, device.getId()));
            }
            return result;
        });
    }