diff options
Diffstat (limited to 'share/starlingx_base/resource')
| -rw-r--r-- | share/starlingx_base/resource/infra_workload.py | 596 |
1 files changed, 133 insertions, 463 deletions
diff --git a/share/starlingx_base/resource/infra_workload.py b/share/starlingx_base/resource/infra_workload.py index 4da0a0d0..61db8a72 100644 --- a/share/starlingx_base/resource/infra_workload.py +++ b/share/starlingx_base/resource/infra_workload.py @@ -13,25 +13,15 @@ # limitations under the License. import logging -import json -import traceback -import uuid - from django.conf import settings -from common.exceptions import VimDriverNewtonException -# from newton_base.util import VimDriverUtils -from keystoneauth1.exceptions import HttpError from rest_framework import status from rest_framework.response import Response -from rest_framework.views import APIView from common.msapi import extsys from common.msapi.helper import Helper as helper -from common.utils import restcall -from newton_base.registration import registration as newton_registration from newton_base.resource import infra_workload as newton_infra_workload -from newton_base.util import VimDriverUtils +from newton_base.resource import infra_workload_helper as infra_workload_helper logger = logging.getLogger(__name__) @@ -46,28 +36,52 @@ class InfraWorkload(newton_infra_workload.InfraWorkload): def post(self, request, vimid="", workloadid=""): self._logger.info("vimid: %s, stackid:%s" % (vimid, workloadid)) - self._logger.info("data: %s" % (request.data)) + self._logger.info("data: %s" % request.data) self._logger.debug("META: %s" % request.META) - try: - resp_template = {} - os_status = status.HTTP_500_INTERNAL_SERVER_ERROR + resp_template = { + "template_type": "HEAT", + "workload_id": workloadid, + "workload_status": "WORKLOAD_CREATE_FAIL", + "workload_status_reason": "Exception occurs" + } + try: + worker_self = infra_workload_helper.InfraWorkloadHelper( + settings.MULTICLOUD_API_V1_PREFIX, + settings.AAI_BASE_URL + ) if workloadid == "": - return super(InfraWorkload, self).post(request, vimid) + resp_template["workload_status"] = "WORKLOAD_CREATE_FAIL" + # post to create a new stack, stack id available only after creating a stack is done + progress_code, progress_status, progress_msg = worker_self.workload_create(vimid, request.data) + resp_template["workload_status"] = progress_status + resp_template["workload_status_reason"] = progress_msg + + if progress_code == 0: + # update workload_id + stack = progress_msg + stackid = stack["id"] + resp_template["workload_id"] = stackid + status_code = status.HTTP_201_CREATED + else: + status_code = status.HTTP_400_BAD_REQUEST + + return Response(data=resp_template, status=status_code) + # return super(InfraWorkload, self).post(request, vimid) else: + resp_template["workload_status"] = "WORKLOAD_UPDATE_FAIL" # a post to heatbridge - worker_self = InfraWorkloadHelper( - settings.MULTICLOUD_API_V1_PREFIX, - settings.AAI_BASE_URL - ) backlog_item = { "id": workloadid, - "worker": worker_self.workload_update(), + "worker": worker_self.workload_update, "payload": (worker_self, vimid, workloadid, request.data), "repeat": 0, # one time job # format of status: retcode:0 is ok, otherwise error code from http status, Status ENUM, Message - "status": (0, "AAI_UPDATE_IN_PROGRESS", "Pending to schedule") + "status": ( + 0, "WORKLOAD_UPDATE_IN_PROGRESS", + "backlog to update workload %s pends to schedule" % workloadid + ) } gInfraWorkloadThread.add(backlog_item) if 0 == gInfraWorkloadThread.state(): @@ -77,91 +91,132 @@ class InfraWorkload(newton_infra_workload.InfraWorkload): backlog_item = gInfraWorkloadThread.get(workloadid) if not backlog_item: # backlog item not found + resp_template["workload_status_reason"] = \ + "backlog to update workload %s " \ + "into AAI is not found" % workloadid return Response( - data={ - 'workload_status': "AAI_UPDATE_FAIL", - "message": "AAI update failed" - }, + data=resp_template, status=status.HTTP_500_INTERNAL_SERVER_ERROR ) else: - progress = backlog_item.get("status", "Status not found") + progress = backlog_item.get("status", + (13, "WORKLOAD_DELETE_FAIL", + "Unexpected:status not found in backlog item") + ) progress_code = progress[0] progress_status = progress[1] progress_msg = progress[2] - return Response(data={'workload_status': progress_status, "message": progress_msg}, - status=status.HTTP_201_CREATED + resp_template["workload_status"] = progress_status + resp_template["workload_status_reason"] = progress_msg + return Response(data=resp_template, + status=status.HTTP_200_ACCEPTED if progress_code == 0 else progress_code ) except Exception as e: - self._logger.error(traceback.format_exc()) - return Response(data={'error': str(e)}, + errmsg = e.message + self._logger.error(errmsg) + resp_template["workload_status_reason"] = errmsg + return Response(data=resp_template, status=status.HTTP_500_INTERNAL_SERVER_ERROR) def get(self, request, vimid="", workloadid=""): self._logger.info("vimid, workload id: %s, %s" % (vimid, workloadid)) self._logger.debug("META: %s" % request.META) + resp_template = { + "template_type": "HEAT", + "workload_id": workloadid, + "workload_status": "WORKLOAD_GET_FAIL", + "workload_status_reason": "Exception occurs" + } try: if workloadid == "": - raise VimDriverNewtonException( - message="workload_id is not specified", - content="workload_id must be specified to delete the workload", - status_code = status.HTTP_400_BAD_REQUEST) + resp_template["workload_status_reason"] = "workload id is not found in API url" + return Response( + data=resp_template, + status=status.HTTP_400_BAD_REQUEST + ) # now query the progress + status_code = status.HTTP_200_OK backlog_item = gInfraWorkloadThread.get(workloadid) if not backlog_item: - # backlog item not found - return Response( - data={ - 'workload_status': "AAI_UPDATE_FAIL", - "message": "AAI update failed" - }, - status=status.HTTP_500_INTERNAL_SERVER_ERROR + # backlog item not found, so check the stack status + worker_self = infra_workload_helper.InfraWorkloadHelper( + settings.MULTICLOUD_API_V1_PREFIX, + settings.AAI_BASE_URL ) + progress_code, progress_status, progress_msg = worker_self.workload_status(vimid, workloadid, None) + + resp_template["workload_status"] = progress_status + resp_template["workload_status_reason"] = progress_msg + status_code = status.HTTP_200_OK\ + if progress_code == 0 else progress_code + else: - progress = backlog_item.get("status", "Status not found") + progress = backlog_item.get("status", + (13, "WORKLOAD_DELETE_FAIL", + "Unexpected:status not found in backlog item") + ) progress_code = progress[0] progress_status = progress[1] progress_msg = progress[2] - return Response(data={'workload_status': progress_status, "message": progress_msg}, - status=status.HTTP_201_CREATED - if progress_code == 0 else progress_code - ) + # if gInfraWorkloadThread.expired(workloadid): + # gInfraWorkloadThread.remove(workloadid) + resp_template["workload_status"] = progress_status + resp_template["workload_status_reason"] = progress_msg + status_code = status.HTTP_200_OK\ + if progress_code == 0 else progress_code + + return Response(data=resp_template, + status=status_code + ) except Exception as e: - self._logger.error(traceback.format_exc()) - return Response(data={'error': str(e)}, + self._logger.error(e.message) + resp_template["workload_status_reason"] = e.message + return Response(data=resp_template, status=status.HTTP_500_INTERNAL_SERVER_ERROR) def delete(self, request, vimid="", workloadid=""): self._logger.info("vimid, workload id: %s, %s" % (vimid, workloadid)) self._logger.debug("META: %s" % request.META) + resp_template = { + "template_type": "HEAT", + "workload_id": workloadid, + "workload_status": "WORKLOAD_DELETE_FAIL", + "workload_status_reason": "Exception occurs" + } try: - super(InfraWorkload, self).delete(request, vimid, workloadid) - if workloadid == "": - raise VimDriverNewtonException( - message="workload_id is not specified", - content="workload_id must be specified to delete the workload", - status_code = status.HTTP_400_BAD_REQUEST) + resp_template["workload_status_reason"] = "workload id is not found in API url" + return Response( + data=resp_template, + status=status.HTTP_400_BAD_REQUEST + ) - # a post to heatbridge delete - worker_self = InfraWorkloadHelper( + # remove the stack object from vim + super(InfraWorkload, self).delete(request, vimid, workloadid) + + # backlog for a post to heatbridge delete + worker_self = infra_workload_helper.InfraWorkloadHelper( settings.MULTICLOUD_API_V1_PREFIX, settings.AAI_BASE_URL ) backlog_item = { "id": workloadid, - "worker": worker_self.workload_delete(), + "worker": worker_self.workload_delete, "payload": (worker_self, vimid, workloadid, request.data), "repeat": 0, # one time job # format of status: retcode:0 is ok, otherwise error code from http status, Status ENUM, Message - "status": (0, "AAI_REMOVE_IN_PROGRESS", "Pending to schedule") + "status": ( + 0, "WORKLOAD_DELETE_IN_PROGRESS", + "backlog for delete the workload %s " + "pends to schedule" % workloadid + ) } gInfraWorkloadThread.add(backlog_item) if 0 == gInfraWorkloadThread.state(): @@ -171,95 +226,35 @@ class InfraWorkload(newton_infra_workload.InfraWorkload): backlog_item = gInfraWorkloadThread.get(workloadid) if not backlog_item: # backlog item not found + resp_template["workload_status_reason"] = \ + "backlog to remove the "\ + "workload %s is not found" % workloadid + return Response( - data={ - 'workload_status': "STACK_REMOVE_FAILED", - "message": "AAI update failed" - }, + data=resp_template, status=status.HTTP_500_INTERNAL_SERVER_ERROR ) else: - progress = backlog_item.get("status", "Status not found") + progress = backlog_item.get("status", + (13, "WORKLOAD_DELETE_FAIL", + "Unexpected:status not found in backlog item") + ) progress_code = progress[0] progress_status = progress[1] progress_msg = progress[2] - return Response(data={'workload_status': progress_status, "message": progress_msg}, - status=status.HTTP_200_OK + # if gInfraWorkloadThread.expired(workloadid): + # gInfraWorkloadThread.remove(workloadid) + + resp_template["workload_status"] = progress_status + resp_template["workload_status_reason"] = progress_msg + return Response(data=resp_template, + status=status.HTTP_204_NO_CONTENT if progress_code == 0 else progress_code ) - - # # assume the workload_type is heat - # stack_id = workloadid - # cloud_owner, regionid = extsys.decode_vim_id(vimid) - # # should go via multicloud proxy so that - # # the selflink is updated by multicloud - # retcode, v2_token_resp_json, os_status = \ - # helper.MultiCloudIdentityHelper( - # settings.MULTICLOUD_API_V1_PREFIX, - # cloud_owner, regionid, "/v2.0/tokens") - # - # if retcode > 0 or not v2_token_resp_json: - # logger.error("authenticate fails:%s, %s, %s" % - # (cloud_owner, regionid, v2_token_resp_json)) - # return - # # tenant_id = v2_token_resp_json["access"]["token"]["tenant"]["id"] - # # tenant_name = v2_token_resp_json["access"]["token"]["tenant"]["name"] - # - # # get stack status - # service_type = "orchestration" - # resource_uri = "/stacks?id=%s" % stack_id if stack_id else "/stacks" - # self._logger.info("retrieve stack resources, URI:%s" % resource_uri) - # retcode, content, os_status = \ - # helper.MultiCloudServiceHelper(cloud_owner, regionid, - # v2_token_resp_json, - # service_type, resource_uri, - # None, "GET") - # - # stacks = content.get('stacks', []) \ - # if retcode == 0 and content else [] - # # assume there is at most 1 stack returned - # # since it was filtered by id - # stack1 = stacks[0] if stacks else None - # stack_status = "" - # - # if stack1 and 'CREATE_COMPLETE' == stack1['stack_status']: - # # delete the stack - # resource_uri = "/stacks/%s/%s" % \ - # (stack1['stack_name'], stack1['id']) - # self._logger.info("delete stack, URI:%s" % resource_uri) - # retcode, content, os_status = \ - # helper.MultiCloudServiceHelper(cloud_owner, regionid, - # v2_token_resp_json, - # service_type, resource_uri, - # None, "DELETE") - # # if retcode == 0: - # # stack_status = "DELETE_IN_PROCESS" - # # # and update AAI inventory by heatbridge-delete - # # self.heatbridge_delete(request, vimid, stack1['id']) - # - # # stub response - # resp_template = { - # "template_type": "HEAT", - # "workload_id": stack_id, - # "workload_status": stack_status - # } - # - # if retcode > 0: - # resp_template["workload_response"] = content - # - # self._logger.info("RESP with data> result:%s" % resp_template) - # return Response(status=os_status) - # except VimDriverNewtonException as e: - # self._logger.error("Plugin exception> status:%s,error:%s" - # % (e.status_code, e.content)) - # return Response(data={'error': e.content}, status=e.status_code) - # except HttpError as e: - # self._logger.error("HttpError: status:%s, response:%s" % - # (e.http_status, e.response.json())) - # return Response(data=e.response.json(), status=e.http_status) except Exception as e: - self._logger.error(traceback.format_exc()) - return Response(data={'error': str(e)}, + self._logger.error(e.message) + resp_template["workload_status_reason"] = e.message + return Response(data=resp_template, status=status.HTTP_500_INTERNAL_SERVER_ERROR) @@ -292,328 +287,3 @@ class APIv1InfraWorkload(InfraWorkload): vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id) return super(APIv1InfraWorkload, self).delete(request, vimid, requri) - -class InfraWorkloadHelper(newton_registration.RegistryHelper): - - def __init__(self, multicloud_prefix, aai_base_url, vimid, workloadid=""): - self.proxy_prefix = multicloud_prefix - self.aai_base_url = aai_base_url - self._logger = logger - self.vimid = vimid - self.workloadid = workloadid - super(InfraWorkloadHelper, self).__init__() - - def workload_create(self, vimid, workload_data): - data = workload_data - oof_directive = data.get("oof_directives", {}) - template_type = data.get("template_type", None) - template_data = data.get("template_data", {}) - resp_template = None - if template_type and "heat" == template_type.lower(): - # update heat parameters from oof_directive - parameters = template_data.get("parameters", {}) - - for directive in oof_directive.get("directives", []): - if directive["type"] == "vnfc": - for directive2 in directive.get("directives", []): - if directive2["type"] in ["flavor_directives", - "sriovNICNetwork_directives"]: - for attr in directive2.get("attributes", []): - flavor_label = attr.get("attribute_name", None) - flavor_value = attr.get("attribute_value", None) - if flavor_label in parameters: - parameters[flavor_label] = flavor_value - else: - self._logger.warn( - "There is no parameter exist: %s" % - flavor_label) - - # update parameters - template_data["parameters"] = parameters - - # reset to make sure "files" are empty - template_data["files"] = {} - - # authenticate - cloud_owner, regionid = extsys.decode_vim_id(vimid) - # should go via multicloud proxy so that - # the selflink is updated by multicloud - retcode, v2_token_resp_json, os_status = \ - helper.MultiCloudIdentityHelper( - settings.MULTICLOUD_API_V1_PREFIX, - cloud_owner, regionid, "/v2.0/tokens" - ) - - if retcode > 0 or not v2_token_resp_json: - logger.error("authenticate fails:%s,%s, %s" % - (cloud_owner, regionid, v2_token_resp_json)) - return ( - retcode, - "authenticate fails:%s,%s, %s" % - (cloud_owner, regionid, v2_token_resp_json) - ) - - # tenant_id = v2_token_resp_json["access"]["token"]["tenant"]["id"] - - service_type = "orchestration" - resource_uri = "/stacks" - self._logger.info("retrieve stack resources, URI:%s" % resource_uri) - retcode, content, os_status = \ - helper.MultiCloudServiceHelper(cloud_owner, regionid, - v2_token_resp_json, - service_type, resource_uri, - template_data, "POST") - - stack1 = content.get('stack', None) \ - if retcode == 0 and content else None - - stackid = stack1["id"] if stack1 else "" - resp_template = { - "template_type": template_type, - "workload_id": stackid, - "template_response": content - } - self._logger.info("RESP with data> result:%s" % resp_template) - return (0, resp_template) - - def workload_update(self, vimid, stack_id, otherinfo): - ''' - update heat resource to AAI for the specified cloud region and tenant - The resources includes: vserver, vserver/l-interface, - ''' - - cloud_owner, regionid = extsys.decode_vim_id(vimid) - # should go via multicloud proxy so that the selflink is updated by multicloud - retcode, v2_token_resp_json, os_status = \ - helper.MultiCloudIdentityHelper(settings.MULTICLOUD_API_V1_PREFIX, - cloud_owner, regionid, "/v2.0/tokens") - if retcode > 0: - logger.error("authenticate fails:%s, %s, %s" % - (cloud_owner, regionid, v2_token_resp_json)) - - return (retcode, "AAI_UPDATE_FAIL", "authenticate fails:%s, %s, %s" % - (cloud_owner, regionid, v2_token_resp_json)) - tenant_id = v2_token_resp_json["access"]["token"]["tenant"]["id"] - # tenant_name = v2_token_resp_json["access"]["token"]["tenant"]["name"] - - # common prefix - aai_cloud_region = \ - "/cloud-infrastructure/cloud-regions/cloud-region/%s/%s/tenants/tenant/%s" \ - % (cloud_owner, regionid, tenant_id) - - # get stack resource - service_type = "orchestration" - resource_uri = "/stacks/%s/resources" % (stack_id) - self._logger.info("retrieve stack resources, URI:%s" % resource_uri) - retcode, content, os_status = \ - helper.MultiCloudServiceHelper(cloud_owner, regionid, - v2_token_resp_json, - service_type, resource_uri, - None, "GET") - - resources = content.get('resources', []) if retcode == 0 and content else [] - - # find and update resources - transactions = [] - for resource in resources: - if resource.get('resource_status', None) != "CREATE_COMPLETE": - # this resource is not ready yet - continue - if resource.get('resource_type', None) == 'OS::Nova::Server': - # retrieve vserver details - service_type = "compute" - resource_uri = "/servers/%s" % (resource['physical_resource_id']) - self._logger.info("retrieve vserver detail, URI:%s" % resource_uri) - retcode, content, os_status = \ - helper.MultiCloudServiceHelper(cloud_owner, regionid, - v2_token_resp_json, - service_type, resource_uri, - None, "GET") - - self._logger.debug(" resp data:%s" % content) - vserver_detail = content.get('server', None) if retcode == 0 and content else None - if vserver_detail: - # compose inventory entry for vserver - vserver_link = "" - for link in vserver_detail['links']: - if link['rel'] == 'self': - vserver_link = link['href'] - break - pass - - # note: relationship-list to flavor/image is not be update yet - # note: volumes is not updated yet - # note: relationship-list to vnf will be handled somewhere else - aai_resource = { - 'body': { - 'vserver-name': vserver_detail['name'], - 'vserver-name2': vserver_detail['name'], - "vserver-id": vserver_detail['id'], - "vserver-selflink": vserver_link, - "prov-status": vserver_detail['status'] - }, - "uri": aai_cloud_region + "/vservers/vserver/%s" % (vserver_detail['id']) - } - - try: - # then update the resource - retcode, content, status_code = \ - restcall.req_to_aai(aai_resource['uri'], - "PUT", content=aai_resource['body']) - - if retcode == 0 and content: - content = json.JSONDecoder().decode(content) - self._logger.debug("AAI update %s response: %s" % - (aai_resource['uri'], content)) - except Exception: - self._logger.error(traceback.format_exc()) - pass - - aai_resource_transactions = {"put": [aai_resource]} - transactions.append(aai_resource_transactions) - # self._logger.debug("aai_resource :%s" % aai_resource_transactions) - pass - - for resource in resources: - if resource.get('resource_status', None) != "CREATE_COMPLETE": - continue - if resource.get('resource_type', None) == 'OS::Neutron::Port': - # retrieve vport details - service_type = "network" - resource_uri = "/v2.0/ports/%s" % (resource['physical_resource_id']) - self._logger.info("retrieve vport detail, URI:%s" % resource_uri) - retcode, content, os_status = \ - helper.MultiCloudServiceHelper(cloud_owner, regionid, - v2_token_resp_json, - service_type, resource_uri, - None, "GET") - - self._logger.debug(" resp data:%s" % content) - - vport_detail = content.get('port', None) if retcode == 0 and content else None - if vport_detail: - # compose inventory entry for vport - # note: l3-interface-ipv4-address-list, - # l3-interface-ipv6-address-list are not updated yet - # note: network-name is not update yet since the detail - # coming with network-id - aai_resource = { - "body": { - "interface-name": vport_detail['name'], - "interface-id": vport_detail['id'], - "macaddr": vport_detail['mac_address'] - }, - 'uri': - aai_cloud_region + "/vservers/vserver/%s/l-interfaces/l-interface/%s" - % (vport_detail['device_id'], vport_detail['name']) - } - try: - # then update the resource - retcode, content, status_code = \ - restcall.req_to_aai(aai_resource['uri'], "PUT", - content=aai_resource['body']) - - if retcode == 0 and content: - content = json.JSONDecoder().decode(content) - self._logger.debug("AAI update %s response: %s" % - (aai_resource['uri'], content)) - except Exception: - self._logger.error(traceback.format_exc()) - pass - - aai_resource_transactions = {"put": [aai_resource]} - transactions.append(aai_resource_transactions) - # self._logger.debug("aai_resource :%s" % aai_resource_transactions) - - pass - - # aai_transactions = {"transactions": transactions} - # self._logger.debug("aai_transactions :%s" % aai_transactions) - return (retcode, "AAI_UPDATE_COMPLETE", "succeed") - - def workload_delete(self, vimid, stack_id, otherinfo): - ''' - remove heat resource from AAI for the specified cloud region and tenant - - ''' - - # enumerate the resources - cloud_owner, regionid = extsys.decode_vim_id(vimid) - # should go via multicloud proxy so that the selflink is updated by multicloud - retcode, v2_token_resp_json, os_status = \ - helper.MultiCloudIdentityHelper(settings.MULTICLOUD_API_V1_PREFIX, - cloud_owner, regionid, "/v2.0/tokens") - if retcode > 0: - logger.error("authenticate fails:%s, %s, %s" % - (cloud_owner, regionid, v2_token_resp_json)) - return None - - tenant_id = v2_token_resp_json["access"]["token"]["tenant"]["id"] - # tenant_name = v2_token_resp_json["access"]["token"]["tenant"]["name"] - - # common prefix - aai_cloud_region = \ - "/cloud-infrastructure/cloud-regions/cloud-region/%s/%s/tenants/tenant/%s" \ - % (cloud_owner, regionid, tenant_id) - - # get stack resource - service_type = "orchestration" - resource_uri = "/stacks/%s/resources" % (stack_id) - self._logger.info("retrieve stack resources, URI:%s" % resource_uri) - retcode, content, os_status = \ - helper.MultiCloudServiceHelper(cloud_owner, regionid, - v2_token_resp_json, - service_type, resource_uri, - None, "GET") - resources = content.get('resources', []) \ - if retcode == 0 and content else [] - - vserver_list = [resource['physical_resource_id'] for resource in resources - if resource.get('resource_type', None) == 'OS::Nova::Server'] - - try: - # get list of vservers - vserver_list_url = aai_cloud_region + "/vservers?depth=all" - retcode, content, status_code = \ - restcall.req_to_aai(vserver_list_url, "GET") - if retcode > 0 or not content: - self._logger.debug("AAI get %s response: %s" % (vserver_list_url, content)) - return (retcode, "AAI_REMOVE_FAIL", "authenticate fails:%s, %s, %s" % - (cloud_owner, regionid, v2_token_resp_json)) - - content = json.JSONDecoder().decode(content) - vservers = content['vserver'] - for vserver in vservers: - if vserver['vserver-id'] not in vserver_list: - continue - - try: - # iterate vport, except will be raised if no l-interface exist - for vport in vserver['l-interfaces']['l-interface']: - # delete vport - vport_delete_url = \ - aai_cloud_region + \ - "/vservers/vserver/%s/l-interfaces/l-interface/%s?resource-version=%s" \ - % (vserver['vserver-id'], vport['interface-name'], - vport['resource-version']) - - restcall.req_to_aai(vport_delete_url, "DELETE") - except Exception: - pass - - try: - # delete vserver - vserver_delete_url = \ - aai_cloud_region + \ - "/vservers/vserver/%s?resource-version=%s" \ - % (vserver['vserver-id'], vserver['resource-version']) - - restcall.req_to_aai(vserver_delete_url, "DELETE") - except Exception: - continue - - return (retcode, "AAI_REMOVE_COMPLETE", "succeed") - except Exception: - self._logger.error(traceback.format_exc()) - return None - pass |