catalog/packages/views/ns_descriptor_views.py

   1 # Copyright 2018 ZTE Corporation.
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #         http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 import logging
  16
  17 from django.http import StreamingHttpResponse
  18 from drf_yasg.utils import no_body, swagger_auto_schema
  19 from rest_framework import status
  20 from rest_framework.decorators import api_view
  21 from rest_framework.response import Response
  22
  23 from catalog.packages.biz.ns_descriptor import NsDescriptor
  24 from catalog.packages.serializers.create_nsd_info_request import CreateNsdInfoRequestSerializer
  25 from catalog.packages.serializers.nsd_info import NsdInfoSerializer
  26 from catalog.packages.serializers.nsd_infos import NsdInfosSerializer
  27 from catalog.packages.views.common import validate_data
  28 from catalog.pub.exceptions import CatalogException
  29 from .common import view_safe_call_with_log
  30
  31 logger = logging.getLogger(__name__)
  32
  33
  34 @swagger_auto_schema(
  35     method='GET',
  36     operation_description="Query a NSD",
  37     tags=["NSD API"],
  38     request_body=no_body,
  39     responses={
  40         status.HTTP_200_OK: NsdInfoSerializer(),
  41         status.HTTP_404_NOT_FOUND: 'NSDs do not exist',
  42         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  43     }
  44 )
  45 @swagger_auto_schema(
  46     method='DELETE',
  47     operation_description="Delete a NSD",
  48     tags=["NSD API"],
  49     request_body=no_body,
  50     responses={
  51         status.HTTP_204_NO_CONTENT: "No content",
  52         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  53     }
  54 )
  55 @api_view(http_method_names=['GET', 'DELETE'])
  56 @view_safe_call_with_log(logger=logger)
  57 def ns_info_rd(request, **kwargs):
  58     nsd_info_id = kwargs.get("nsdInfoId")
  59     if request.method == 'GET':
  60         data = NsDescriptor().query_single(nsd_info_id)
  61         nsd_info = validate_data(data, NsdInfoSerializer)
  62         return Response(data=nsd_info.data, status=status.HTTP_200_OK)
  63     if request.method == 'DELETE':
  64         NsDescriptor().delete_single(nsd_info_id)
  65         return Response(status=status.HTTP_204_NO_CONTENT)
  66
  67
  68 @swagger_auto_schema(
  69     method='POST',
  70     operation_description="Create a NSD",
  71     tags=["NSD API"],
  72     request_body=CreateNsdInfoRequestSerializer(),
  73     responses={
  74         status.HTTP_201_CREATED: NsdInfoSerializer(),
  75         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  76     }
  77 )
  78 @swagger_auto_schema(
  79     method='GET',
  80     operation_description="Query multiple NSDs",
  81     tags=["NSD API"],
  82     request_body=no_body,
  83     responses={
  84         status.HTTP_200_OK: NsdInfosSerializer(),
  85         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  86     }
  87 )
  88 @api_view(http_method_names=['POST', 'GET'])
  89 @view_safe_call_with_log(logger=logger)
  90 def ns_descriptors_rc(request):
  91     if request.method == 'POST':
  92         create_nsd_info_request = validate_data(request.data, CreateNsdInfoRequestSerializer)
  93         data = NsDescriptor().create(create_nsd_info_request.data)
  94         validate_data(data, NsdInfoSerializer)
  95         return Response(data=data, status=status.HTTP_201_CREATED)
  96
  97     if request.method == 'GET':
  98         nsdId = request.query_params.get("nsdId", None)
  99         data = NsDescriptor().query_multiple(nsdId)
 100         validate_data(data, NsdInfosSerializer)
 101         return Response(data=data, status=status.HTTP_200_OK)
 102
 103
 104 @swagger_auto_schema(
 105     method='PUT',
 106     operation_description="Upload NSD content",
 107     tags=["NSD API"],
 108     request_body=no_body,
 109     responses={
 110         status.HTTP_204_NO_CONTENT: 'PNFD file',
 111         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 112     }
 113 )
 114 @swagger_auto_schema(
 115     method='GET',
 116     operation_description="Download NSD content",
 117     tags=["NSD API"],
 118     request_body=no_body,
 119     responses={
 120         status.HTTP_204_NO_CONTENT: "No content",
 121         status.HTTP_404_NOT_FOUND: 'NSD does not exist.',
 122         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 123     }
 124 )
 125 @api_view(http_method_names=['PUT', 'GET'])
 126 @view_safe_call_with_log(logger=logger)
 127 def nsd_content_ru(request, **kwargs):
 128     nsd_info_id = kwargs.get("nsdInfoId")
 129     if request.method == 'PUT':
 130         files = request.FILES.getlist('file')
 131         try:
 132             local_file_name = NsDescriptor().upload(nsd_info_id, files[0])
 133             NsDescriptor().parse_nsd_and_save(nsd_info_id, local_file_name)
 134             return Response(data=None, status=status.HTTP_204_NO_CONTENT)
 135         except CatalogException as e:
 136             NsDescriptor().handle_upload_failed(nsd_info_id)
 137             raise e
 138         except Exception as e:
 139             NsDescriptor().handle_upload_failed(nsd_info_id)
 140             raise e
 141
 142     if request.method == 'GET':
 143         file_range = request.META.get('HTTP_RANGE')
 144         file_iterator = NsDescriptor().download(nsd_info_id, file_range)
 145         return StreamingHttpResponse(file_iterator, status=status.HTTP_200_OK)