genericparser/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 genericparser.packages.biz.ns_descriptor import NsDescriptor
  24 from genericparser.packages.serializers.create_nsd_info_request import CreateNsdInfoRequestSerializer
  25 from genericparser.packages.serializers.nsd_info import NsdInfoSerializer
  26 from genericparser.packages.serializers.nsd_infos import NsdInfosSerializer
  27 from genericparser.packages.views.common import validate_data
  28 from genericparser.pub.exceptions import GenericparserException
  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     request_body=no_body,
  38     responses={
  39         status.HTTP_200_OK: NsdInfoSerializer(),
  40         status.HTTP_404_NOT_FOUND: 'NSDs do not exist',
  41         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  42     }
  43 )
  44 @swagger_auto_schema(
  45     method='DELETE',
  46     operation_description="Delete a NSD",
  47     request_body=no_body,
  48     responses={
  49         status.HTTP_204_NO_CONTENT: "No content",
  50         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  51     }
  52 )
  53 @api_view(http_method_names=['GET', 'DELETE'])
  54 @view_safe_call_with_log(logger=logger)
  55 def ns_info_rd(request, **kwargs):
  56     nsd_info_id = kwargs.get("nsdInfoId")
  57     if request.method == 'GET':
  58         data = NsDescriptor().query_single(nsd_info_id)
  59         nsd_info = validate_data(data, NsdInfoSerializer)
  60         return Response(data=nsd_info.data, status=status.HTTP_200_OK)
  61     if request.method == 'DELETE':
  62         NsDescriptor().delete_single(nsd_info_id)
  63         return Response(status=status.HTTP_204_NO_CONTENT)
  64
  65
  66 @swagger_auto_schema(
  67     method='POST',
  68     operation_description="Create a NSD",
  69     request_body=CreateNsdInfoRequestSerializer(),
  70     responses={
  71         status.HTTP_201_CREATED: NsdInfoSerializer(),
  72         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  73     }
  74 )
  75 @swagger_auto_schema(
  76     method='GET',
  77     operation_description="Query multiple NSDs",
  78     request_body=no_body,
  79     responses={
  80         status.HTTP_200_OK: NsdInfosSerializer(),
  81         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  82     }
  83 )
  84 @api_view(http_method_names=['POST', 'GET'])
  85 @view_safe_call_with_log(logger=logger)
  86 def ns_descriptors_rc(request):
  87     if request.method == 'POST':
  88         create_nsd_info_request = validate_data(request.data, CreateNsdInfoRequestSerializer)
  89         data = NsDescriptor().create(create_nsd_info_request.data)
  90         nsd_info = validate_data(data, NsdInfoSerializer)
  91         return Response(data=nsd_info.data, status=status.HTTP_201_CREATED)
  92
  93     if request.method == 'GET':
  94         nsdId = request.query_params.get("nsdId", None)
  95         data = NsDescriptor().query_multiple(nsdId)
  96         nsd_infos = validate_data(data, NsdInfosSerializer)
  97         return Response(data=nsd_infos.data, status=status.HTTP_200_OK)
  98
  99
 100 @swagger_auto_schema(
 101     method='PUT',
 102     operation_description="Upload NSD content",
 103     request_body=no_body,
 104     responses={
 105         status.HTTP_204_NO_CONTENT: 'PNFD file',
 106         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 107     }
 108 )
 109 @swagger_auto_schema(
 110     method='GET',
 111     operation_description="Download NSD content",
 112     request_body=no_body,
 113     responses={
 114         status.HTTP_204_NO_CONTENT: "No content",
 115         status.HTTP_404_NOT_FOUND: 'NSD does not exist.',
 116         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 117     }
 118 )
 119 @api_view(http_method_names=['PUT', 'GET'])
 120 @view_safe_call_with_log(logger=logger)
 121 def nsd_content_ru(request, **kwargs):
 122     nsd_info_id = kwargs.get("nsdInfoId")
 123     if request.method == 'PUT':
 124         files = request.FILES.getlist('file')
 125         try:
 126             local_file_name = NsDescriptor().upload(nsd_info_id, files[0])
 127             NsDescriptor().parse_nsd_and_save(nsd_info_id, local_file_name)
 128             return Response(data=None, status=status.HTTP_204_NO_CONTENT)
 129         except GenericparserException as e:
 130             NsDescriptor().handle_upload_failed(nsd_info_id)
 131             raise e
 132         except Exception as e:
 133             NsDescriptor().handle_upload_failed(nsd_info_id)
 134             raise e
 135
 136     if request.method == 'GET':
 137         file_range = request.META.get('HTTP_RANGE')
 138         file_iterator = NsDescriptor().download(nsd_info_id, file_range)
 139         return StreamingHttpResponse(file_iterator, status=status.HTTP_200_OK)