IsmSecurityGroupApi.java 文件源码

@Override
public ManagerSecurityGroupElement getSecurityGroupById(String mgrSecurityGroupId) throws Exception {
    if (mgrSecurityGroupId == null) {
        return null;
    }
    DeviceEntity device = this.validationUtil.getDeviceOrThrow(this.vs.getMgrId());

    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("id"), Long.valueOf(mgrSecurityGroupId)),
                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 id %s under device %s", mgrSecurityGroupId,
                    device.getId()));
        }
        return result;
    });
}