Refactor codes for ns scale

Change-Id: I1bf66c5d95fd9148a2e427c1a0e6c0b2fa11c00c
Issue-ID: VFC-1306
Signed-off-by: fujinhua <fu.jinhua@zte.com.cn>

2 files changed, 16 insertions, 23 deletions

diff --git a/lcm/ns/tests/test_sol_ns_scale_api.py b/lcm/ns/tests/test_sol_ns_scale_api.py
index d11570a5..b8e17482 100644
--- a/lcm/ns/tests/test_sol_ns_scale_api.py
+++ b/lcm/ns/tests/test_sol_ns_scale_api.py
@@ -209,7 +209,7 @@ class TestScaleNsApi(TestCase):
             self.ns_inst_id, data={})
         self.assertEqual(
             response.status_code,
-            status.HTTP_500_INTERNAL_SERVER_ERROR)
+            status.HTTP_400_BAD_REQUEST)
 
     @mock.patch.object(NSManualScaleService, 'start')
     def test_ns_manual_scale_when_ns_not_exist(self, mock_start):
diff --git a/lcm/ns/views/sol/scale_ns_views.py b/lcm/ns/views/sol/scale_ns_views.py
index 07de7d4c..708c3942 100644
--- a/lcm/ns/views/sol/scale_ns_views.py
+++ b/lcm/ns/views/sol/scale_ns_views.py
@@ -19,11 +19,11 @@ from rest_framework.response import Response
 from rest_framework.views import APIView
 from lcm.ns.biz.ns_manual_scale import NSManualScaleService
 from lcm.ns.serializers.sol.scale_ns_serializers import ScaleNsRequestSerializer
-from lcm.pub.exceptions import NSLCMException
 from lcm.pub.utils.jobutil import JobUtil, JOB_TYPE
 from lcm.ns.const import NS_OCC_BASE_URI
 from lcm.pub.exceptions import BadRequestException
 from lcm.ns.serializers.sol.pub_serializers import ProblemDetailsSerializer
+from .common import view_safe_call_with_log
 
 logger = logging.getLogger(__name__)
 
@@ -36,27 +36,20 @@ class ScaleNSView(APIView):
             status.HTTP_500_INTERNAL_SERVER_ERROR: ProblemDetailsSerializer()
         }
     )
+    @view_safe_call_with_log(logger=logger)
     def post(self, request, ns_instance_id):
         logger.debug("Enter ScaleNSView::post %s, %s", request.data, ns_instance_id)
+
+        req_serializer = ScaleNsRequestSerializer(data=request.data)
+        if not req_serializer.is_valid():
+            raise BadRequestException(req_serializer.errors)
+
         job_id = JobUtil.create_job("NS", JOB_TYPE.MANUAL_SCALE_VNF, ns_instance_id)
-        try:
-            req_serializer = ScaleNsRequestSerializer(data=request.data)
-            if not req_serializer.is_valid():
-                raise NSLCMException(req_serializer.errors)
-            nsManualScaleService = NSManualScaleService(ns_instance_id, request.data, job_id)
-            nsManualScaleService.start()
-            response = Response(data={}, status=status.HTTP_202_ACCEPTED)
-            logger.debug("Location: %s" % nsManualScaleService.occ_id)
-            response["Location"] = NS_OCC_BASE_URI % nsManualScaleService.occ_id
-            logger.debug("Leave ScaleNSView")
-            return response
-        except BadRequestException as e:
-            logger.error("Exception in ScaleNSView: %s", e.message)
-            JobUtil.add_job_status(job_id, 255, 'NS scale failed: %s' % e.message)
-            data = {'status': status.HTTP_400_BAD_REQUEST, 'detail': e.message}
-            return Response(data=data, status=status.HTTP_400_BAD_REQUEST)
-        except Exception as e:
-            logger.error("Exception in ScaleNSView: %s", e.message)
-            JobUtil.add_job_status(job_id, 255, 'NS scale failed: %s' % e.message)
-            data = {'status': status.HTTP_500_INTERNAL_SERVER_ERROR, 'detail': e.message}
-            return Response(data=data, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
+
+        nsManualScaleService = NSManualScaleService(ns_instance_id, request.data, job_id)
+        nsManualScaleService.start()
+        response = Response(data={}, status=status.HTTP_202_ACCEPTED)
+        logger.debug("Location: %s" % nsManualScaleService.occ_id)
+        response["Location"] = NS_OCC_BASE_URI % nsManualScaleService.occ_id
+        logger.debug("Leave ScaleNSView")
+        return response