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.const import TAG_NSD_API
  25 from catalog.packages.serializers.create_nsd_info_request import CreateNsdInfoRequestSerializer
  26 from catalog.packages.serializers.nsd_info import NsdInfoSerializer
  27 from catalog.packages.serializers.nsd_infos import NsdInfosSerializer
  28 from catalog.packages.views.common import validate_data
  29 from catalog.pub.exceptions import CatalogException
  30 from .common import view_safe_call_with_log
  31
  32 logger = logging.getLogger(__name__)
  33
  34
  35 @swagger_auto_schema(
  36     method='GET',
  37     operation_description="Query a NSD",
  38     tags=[TAG_NSD_API],
  39     request_body=no_body,
  40     responses={
  41         status.HTTP_200_OK: NsdInfoSerializer(),
  42         status.HTTP_404_NOT_FOUND: 'NSDs do not exist',
  43         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  44     }
  45 )
  46 @swagger_auto_schema(
  47     method='DELETE',
  48     operation_description="Delete a NSD",
  49     tags=[TAG_NSD_API],
  50     request_body=no_body,
  51     responses={
  52         status.HTTP_204_NO_CONTENT: "No content",
  53         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  54     }
  55 )
  56 @api_view(http_method_names=['GET', 'DELETE'])
  57 @view_safe_call_with_log(logger=logger)
  58 def ns_info_rd(request, **kwargs):
  59     nsd_info_id = kwargs.get("nsdInfoId")
  60     if request.method == 'GET':
  61         # Read information about an individual NS descriptor resource.
  62         data = NsDescriptor().query_single(nsd_info_id)
  63         nsd_info = validate_data(data, NsdInfoSerializer)
  64         return Response(data=nsd_info.data, status=status.HTTP_200_OK)
  65     if request.method == 'DELETE':
  66         # Delete an individual NS descriptor resource.
  67         NsDescriptor().delete_single(nsd_info_id)
  68         return Response(status=status.HTTP_204_NO_CONTENT)
  69
  70
  71 @swagger_auto_schema(
  72     method='POST',
  73     operation_description="Create a NSD",
  74     tags=[TAG_NSD_API],
  75     request_body=CreateNsdInfoRequestSerializer(),
  76     responses={
  77         status.HTTP_201_CREATED: NsdInfoSerializer(),
  78         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  79     }
  80 )
  81 @swagger_auto_schema(
  82     method='GET',
  83     operation_description="Query multiple NSDs",
  84     tags=[TAG_NSD_API],
  85     request_body=no_body,
  86     responses={
  87         status.HTTP_200_OK: NsdInfosSerializer(),
  88         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  89     }
  90 )
  91 @api_view(http_method_names=['POST', 'GET'])
  92 @view_safe_call_with_log(logger=logger)
  93 def ns_descriptors_rc(request):
  94     if request.method == 'POST':
  95         # Create a new NS descriptor resource.
  96         create_nsd_info_request = validate_data(request.data, CreateNsdInfoRequestSerializer)
  97         data = NsDescriptor().create(create_nsd_info_request.data)
  98         validate_data(data, NsdInfoSerializer)
  99         return Response(data=data, status=status.HTTP_201_CREATED)
 100
 101     if request.method == 'GET':
 102         # Query information about multiple NS descriptor resources.
 103         nsdId = request.query_params.get("nsdId", None)
 104         data = NsDescriptor().query_multiple(nsdId)
 105         validate_data(data, NsdInfosSerializer)
 106         return Response(data=data, status=status.HTTP_200_OK)
 107
 108
 109 @swagger_auto_schema(
 110     method='PUT',
 111     operation_description="Upload NSD content",
 112     tags=[TAG_NSD_API],
 113     request_body=no_body,
 114     responses={
 115         status.HTTP_204_NO_CONTENT: 'PNFD file',
 116         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 117     }
 118 )
 119 @swagger_auto_schema(
 120     method='GET',
 121     operation_description="Download NSD content",
 122     tags=[TAG_NSD_API],
 123     request_body=no_body,
 124     responses={
 125         status.HTTP_204_NO_CONTENT: "No content",
 126         status.HTTP_404_NOT_FOUND: 'NSD does not exist.',
 127         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 128     }
 129 )
 130 @api_view(http_method_names=['PUT', 'GET'])
 131 @view_safe_call_with_log(logger=logger)
 132 def nsd_content_ru(request, **kwargs):
 133     nsd_info_id = kwargs.get("nsdInfoId")
 134     if request.method == 'PUT':
 135         # Upload the content of a NSD.
 136         files = request.FILES.getlist('file')
 137         try:
 138             local_file_name = NsDescriptor().upload(nsd_info_id, files[0])
 139             NsDescriptor().parse_nsd_and_save(nsd_info_id, local_file_name)
 140             return Response(data=None, status=status.HTTP_204_NO_CONTENT)
 141         except CatalogException as e:
 142             NsDescriptor().handle_upload_failed(nsd_info_id)
 143             raise e
 144         except Exception as e:
 145             NsDescriptor().handle_upload_failed(nsd_info_id)
 146             raise e
 147
 148     if request.method == 'GET':
 149         # Fetch the content of a NSD.
 150         file_range = request.META.get('HTTP_RANGE')
 151         file_iterator = NsDescriptor().download(nsd_info_id, file_range)
 152         return StreamingHttpResponse(file_iterator, status=status.HTTP_200_OK)
 153
 154
 155 @swagger_auto_schema(
 156     method='PUT',
 157     operation_description="Update a NSD",
 158     request_body=no_body,
 159     responses={
 160         status.HTTP_202_ACCEPTED: "Successfully",
 161         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 162     }
 163 )
 164 @api_view(http_method_names=['PUT'])
 165 @view_safe_call_with_log(logger=logger)
 166 def ns_descriptors_u(request, **kwargs):
 167     if request.method == 'PUT':
 168         nsd_info_id = kwargs.get("nsdInfoId")
 169         NsDescriptor().update(request.data, nsd_info_id)
 170         return Response(data=None, status=status.HTTP_202_ACCEPTED)