genericparser/packages/views/pnf_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.pnf_descriptor import PnfDescriptor
  24 from genericparser.packages.serializers.create_pnfd_info_request import CreatePnfdInfoRequestSerializer
  25 from genericparser.packages.serializers.pnfd_info import PnfdInfoSerializer
  26 from genericparser.packages.serializers.pnfd_infos import PnfdInfosSerializer
  27 from genericparser.packages.views.common import validate_data
  28 from genericparser.pub.exceptions import GenericparserException
  29 from genericparser.packages.serializers.genericparser_serializers import ParseModelRequestSerializer
  30 from genericparser.packages.serializers.genericparser_serializers import ParseModelResponseSerializer
  31 from genericparser.packages.serializers.genericparser_serializers import InternalErrorRequestSerializer
  32 from genericparser.pub.utils.syscomm import fun_name
  33 from genericparser.pub.utils.values import ignore_case_get
  34 from .common import view_safe_call_with_log
  35
  36 logger = logging.getLogger(__name__)
  37
  38
  39 @swagger_auto_schema(
  40     method='GET',
  41     operation_description="Query a PNFD",
  42     request_body=no_body,
  43     responses={
  44         status.HTTP_200_OK: PnfdInfoSerializer(),
  45         status.HTTP_404_NOT_FOUND: "PNFD does not exist",
  46         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  47     }
  48 )
  49 @swagger_auto_schema(
  50     method='DELETE',
  51     operation_description="Delete a PNFD",
  52     request_body=no_body,
  53     responses={
  54         status.HTTP_204_NO_CONTENT: "No content",
  55         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  56     }
  57 )
  58 @api_view(http_method_names=['GET', 'DELETE'])
  59 @view_safe_call_with_log(logger=logger)
  60 def pnfd_info_rd(request, **kwargs):  # TODO
  61     pnfd_info_id = kwargs.get('pnfdInfoId')
  62     if request.method == 'GET':
  63         logger.debug("Query an individual PNF descriptor> %s" % request.data)
  64         data = PnfDescriptor().query_single(pnfd_info_id)
  65         pnfd_info = validate_data(data, PnfdInfoSerializer)
  66         return Response(data=pnfd_info.data, status=status.HTTP_200_OK)
  67
  68     if request.method == 'DELETE':
  69         logger.debug("Delete an individual PNFD resource> %s" % request.data)
  70         PnfDescriptor().delete_single(pnfd_info_id)
  71         return Response(data=None, status=status.HTTP_204_NO_CONTENT)
  72
  73
  74 @swagger_auto_schema(
  75     method='POST',
  76     operation_description="Create a  PNFD",
  77     request_body=CreatePnfdInfoRequestSerializer(),
  78     responses={
  79         status.HTTP_201_CREATED: PnfdInfoSerializer(),
  80         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  81     }
  82 )
  83 @swagger_auto_schema(
  84     method='GET',
  85     operation_description="Query multiple PNFDs",
  86     request_body=no_body,
  87     responses={
  88         status.HTTP_200_OK: PnfdInfosSerializer(),
  89         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  90     }
  91 )
  92 @api_view(http_method_names=['POST', 'GET'])
  93 @view_safe_call_with_log(logger=logger)
  94 def pnf_descriptors_rc(request):
  95     if request.method == 'POST':
  96         create_pnfd_info_request = validate_data(request.data, CreatePnfdInfoRequestSerializer)
  97         data = PnfDescriptor().create(create_pnfd_info_request.data)
  98         pnfd_info = validate_data(data, PnfdInfoSerializer)
  99         return Response(data=pnfd_info.data, status=status.HTTP_201_CREATED)
 100
 101     if request.method == 'GET':
 102         pnfdId = request.query_params.get('pnfdId', None)
 103         if pnfdId:
 104             data = PnfDescriptor().query_multiple(pnfdId)
 105         else:
 106             data = PnfDescriptor().query_multiple()
 107         pnfd_infos = validate_data(data, PnfdInfosSerializer)
 108         return Response(data=pnfd_infos.data, status=status.HTTP_200_OK)
 109
 110
 111 @swagger_auto_schema(
 112     method='PUT',
 113     operation_description="Upload PNFD content",
 114     request_body=no_body,
 115     responses={
 116         status.HTTP_204_NO_CONTENT: "No content",
 117         status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 118     }
 119 )
 120 @swagger_auto_schema(
 121     method='GET',
 122     operation_description="Fetch PNFD content",
 123     request_body=no_body,
 124     responses={
 125         status.HTTP_204_NO_CONTENT: 'PNFD file',
 126         status.HTTP_404_NOT_FOUND: "PNFD 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 pnfd_content_ru(request, **kwargs):
 133     pnfd_info_id = kwargs.get("pnfdInfoId")
 134     if request.method == 'PUT':
 135         files = request.FILES.getlist('file')
 136         try:
 137             local_file_name = PnfDescriptor().upload(files[0], pnfd_info_id)
 138             PnfDescriptor().parse_pnfd_and_save(pnfd_info_id, local_file_name)
 139             return Response(data=None, status=status.HTTP_204_NO_CONTENT)
 140         except GenericparserException as e:
 141             PnfDescriptor().handle_upload_failed(pnfd_info_id)
 142             raise e
 143         except Exception as e:
 144             PnfDescriptor().handle_upload_failed(pnfd_info_id)
 145             raise e
 146
 147     if request.method == 'GET':
 148         file_iterator = PnfDescriptor().download(pnfd_info_id)
 149         return StreamingHttpResponse(file_iterator, status=status.HTTP_200_OK)
 150
 151
 152 @swagger_auto_schema(
 153     method='POST',
 154     operation_description="Parse PNF model",
 155     request_body=ParseModelRequestSerializer,
 156     responses={
 157         status.HTTP_202_ACCEPTED: ParseModelResponseSerializer,
 158         status.HTTP_500_INTERNAL_SERVER_ERROR: InternalErrorRequestSerializer})
 159 @api_view(http_method_names=['POST'])
 160 def pnf_model_parser(request, *args, **kwargs):
 161     csar_id = ignore_case_get(request.data, "csarId")
 162     inputs = ignore_case_get(request.data, "inputs")
 163     logger.debug(
 164         "Enter %s, csar_id=%s, inputs=%s",
 165         fun_name(),
 166         csar_id,
 167         inputs)
 168     ret = PnfDescriptor().parse_pnfd(csar_id, inputs)
 169     logger.info("Leave %s, Return value is %s", fun_name(), ret)
 170     if ret[0] != 0:
 171         return Response(data={'error': ret[1]}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 172     response = validate_data(ret[1], ParseModelResponseSerializer)
 173     return Response(data=response.data, status=status.HTTP_202_ACCEPTED)