Add Heal Api in GVNFM

Change-Id: If825c7a03cd38a6694d2cc0d28fbff391a3f4a95
Signed-off-by: Shobana Jothi<shobana.jothi@verizon.com>
Issue-ID: VFC-995

1 files changed, 88 insertions, 0 deletions

diff --git a/lcm/lcm/nf/views/heal_vnf_view.py b/lcm/lcm/nf/views/heal_vnf_view.py
new file mode 100644
index 00000000..08daa98f
--- /dev/null
+++ b/lcm/lcm/nf/views/heal_vnf_view.py
@@ -0,0 +1,88 @@
+# Copyright (C) 2018 Verizon. All Rights Reserved.

+#

+# Licensed under the Apache License, Version 2.0 (the "License");

+# you may not use this file except in compliance with the License.

+# You may obtain a copy of the License at

+#

+#       http://www.apache.org/licenses/LICENSE-2.0

+#

+# Unless required by applicable law or agreed to in writing, software

+# distributed under the License is distributed on an "AS IS" BASIS,

+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+# See the License for the specific language governing permissions and

+# limitations under the License.

+

+import logging

+import traceback

+

+from drf_yasg.utils import swagger_auto_schema

+from rest_framework import status

+from rest_framework.response import Response

+from rest_framework.views import APIView

+

+from lcm.nf.biz.heal_vnf import HealVnf

+from lcm.nf.serializers.heal_vnf_req import HealVnfRequestSerializer

+from lcm.nf.serializers.response import ProblemDetailsSerializer

+from lcm.pub.exceptions import NFLCMException, NFLCMExceptionNotFound, NFLCMExceptionConflict

+from lcm.pub.utils.jobutil import JobUtil

+from lcm.pub.database.models import NfInstModel

+from lcm.nf.const import VNF_STATUS

+

+logger = logging.getLogger(__name__)

+

+

+class HealVnfView(APIView):

+    @swagger_auto_schema(

+        request_body=HealVnfRequestSerializer(),

+        responses={

+            status.HTTP_202_ACCEPTED: "Success",

+            status.HTTP_404_NOT_FOUND: ProblemDetailsSerializer(),

+            status.HTTP_409_CONFLICT: ProblemDetailsSerializer(),

+            status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"

+        }

+    )

+    def post(self, request, instanceid):

+        logger.debug("HealVnf--post::> %s" % request.data)

+        try:

+            heal_vnf_request_serializer = HealVnfRequestSerializer(data=request.data)

+            if not heal_vnf_request_serializer.is_valid():

+                raise NFLCMException(heal_vnf_request_serializer.errors)

+

+            job_id = JobUtil.create_job('NF', 'HEAL', instanceid)

+            JobUtil.add_job_status(job_id, 0, "HEAL_VNF_READY")

+            self.heal_pre_check(instanceid, job_id)

+            HealVnf(heal_vnf_request_serializer.data, instanceid, job_id).start()

+            response = Response(data=None, status=status.HTTP_202_ACCEPTED)

+            response["Location"] = "/vnf_lc_ops/%s" % job_id

+            return response

+        except NFLCMExceptionNotFound as e:

+            probDetail = ProblemDetailsSerializer(data={"status": status.HTTP_404_NOT_FOUND, "detail": "VNF Instance not found"})

+            resp_isvalid = probDetail.is_valid()

+            if not resp_isvalid:

+                raise NFLCMException(probDetail.errors)

+            return Response(data=probDetail.data, status=status.HTTP_404_NOT_FOUND)

+        except NFLCMExceptionConflict as e:

+            probDetail = ProblemDetailsSerializer(data={"status": status.HTTP_409_CONFLICT, "detail": "VNF Instance not in Instantiated State"})

+            resp_isvalid = probDetail.is_valid()

+            if not resp_isvalid:

+                    raise NFLCMException(probDetail.errors)

+            return Response(data=probDetail.data, status=status.HTTP_409_CONFLICT)

+        except NFLCMException as e:

+            logger.error(e.message)

+            return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)

+        except Exception as e:

+            logger.error(e.message)

+            logger.error(traceback.format_exc())

+            return Response(data={'error': 'unexpected exception'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)

+

+    def heal_pre_check(self, nf_inst_id, job_id):

+        vnf_insts = NfInstModel.objects.filter(nfinstid=nf_inst_id)

+        if not vnf_insts.exists():

+            raise NFLCMExceptionNotFound("VNF nf_inst_id does not exist.")

+

+        if vnf_insts[0].status != 'INSTANTIATED':

+            raise NFLCMExceptionConflict("VNF instantiationState is not INSTANTIATED.")

+

+        NfInstModel.objects.filter(nfinstid=nf_inst_id).update(status=VNF_STATUS.HEALING)

+        JobUtil.add_job_status(job_id, 15, 'Nf healing pre-check finish')

+        logger.info("Nf healing pre-check finish")