import json
import logging
+import time
import traceback
import uuid
-import time
+from drf_yasg.utils import swagger_auto_schema
+from lcm.ns_sfcs.biz.create_flowcla import CreateFlowClassifier
+from lcm.ns_sfcs.biz.create_port_chain import CreatePortChain
+from lcm.ns_sfcs.biz.create_portpairgp import CreatePortPairGroup
+from lcm.ns_sfcs.biz.create_sfc_worker import CreateSfcWorker
+from lcm.ns_sfcs.serializers.serializers import CreateFlowClaSerializer
+from lcm.ns_sfcs.serializers.serializers import CreatePortChainSerializer
+from lcm.ns_sfcs.serializers.serializers import CreatePortPairGpSerializer
+from lcm.ns_sfcs.serializers.serializers import CreateSfcInstReqSerializer, CreateSfcInstRespSerializer
+from lcm.ns_sfcs.serializers.serializers import CreateSfcReqSerializer, CreateSfcRespSerializer
+from lcm.ns_sfcs.biz.sfc_instance import SfcInstance
from rest_framework import status
from rest_framework.response import Response
from rest_framework.views import APIView
-from drf_yasg.utils import swagger_auto_schema
-from lcm.ns.sfcs.create_flowcla import CreateFlowClassifier
-from lcm.ns.sfcs.create_port_chain import CreatePortChain
-from lcm.ns.sfcs.create_portpairgp import CreatePortPairGroup
-from lcm.ns.sfcs.create_sfc_worker import CreateSfcWorker
-from lcm.ns.sfcs.sfc_instance import SfcInstance
-from lcm.ns.sfcs.utils import get_fp_id, ignorcase_get
-from lcm.ns.sfcs.serializers import CreateSfcInstReqSerializer, CreateSfcInstRespSerializer
-from lcm.ns.sfcs.serializers import CreateSfcReqSerializer, CreateSfcRespSerializer
-from lcm.ns.sfcs.serializers import CreatePortPairGpSerializer
-from lcm.ns.sfcs.serializers import CreateFlowClaSerializer
-from lcm.ns.sfcs.serializers import CreatePortChainSerializer
+from lcm.ns_sfcs.biz.utils import get_fp_id, ignorcase_get
logger = logging.getLogger(__name__)