public static PulsarClusterDTO getFromRequest(PulsarClusterRequest request, String extParams) {
        PulsarClusterDTO dto = StringUtils.isNotBlank(extParams)
                ? PulsarClusterDTO.getFromJson(extParams)
                : new PulsarClusterDTO();
        dto.setServiceUrl(request.getUrl());
        return CommonBeanUtils.copyProperties(request, dto, true);
    }
Get the dto instance from the request
inlong-manager/manager-pojo/src/main/java/org/apache/inlong/manager/pojo/cluster/pulsar/PulsarClusterDTO.java