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# Copyright 2018 ZTE Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
from django.http import StreamingHttpResponse
from drf_yasg.utils import no_body, swagger_auto_schema
from rest_framework import status
from rest_framework.decorators import api_view
from rest_framework.response import Response
from genericparser.packages.biz.pnf_descriptor import PnfDescriptor
from genericparser.packages.serializers.create_pnfd_info_request import CreatePnfdInfoRequestSerializer
from genericparser.packages.serializers.pnfd_info import PnfdInfoSerializer
from genericparser.packages.serializers.pnfd_infos import PnfdInfosSerializer
from genericparser.packages.views.common import validate_data
from genericparser.packages.serializers.genericparser_serializers import ParseModelRequestSerializer
from genericparser.packages.serializers.genericparser_serializers import ParseModelResponseSerializer
from genericparser.packages.serializers.genericparser_serializers import InternalErrorRequestSerializer
from genericparser.packages.serializers.response import ProblemDetailsSerializer
from genericparser.pub.utils.syscomm import fun_name
from genericparser.pub.utils.values import ignore_case_get
from .common import view_safe_call_with_log
logger = logging.getLogger(__name__)
@swagger_auto_schema(
method='GET',
operation_description="Query a PNFD",
request_body=no_body,
responses={
status.HTTP_200_OK: PnfdInfoSerializer(),
status.HTTP_404_NOT_FOUND: ProblemDetailsSerializer(),
status.HTTP_500_INTERNAL_SERVER_ERROR: ProblemDetailsSerializer()
}
)
@swagger_auto_schema(
method='DELETE',
operation_description="Delete a PNFD",
request_body=no_body,
responses={
status.HTTP_204_NO_CONTENT: "No content",
status.HTTP_500_INTERNAL_SERVER_ERROR: ProblemDetailsSerializer()
}
)
@api_view(http_method_names=['GET', 'DELETE'])
@view_safe_call_with_log(logger=logger)
def pnfd_info_rd(request, **kwargs): # TODO
pnfd_info_id = kwargs.get('pnfdInfoId')
if request.method == 'GET':
logger.debug("Query an individual PNF descriptor> %s" % request.data)
data = PnfDescriptor().query_single(pnfd_info_id)
pnfd_info = validate_data(data, PnfdInfoSerializer)
return Response(data=pnfd_info.data, status=status.HTTP_200_OK)
if request.method == 'DELETE':
logger.debug("Delete an individual PNFD resource> %s" % request.data)
PnfDescriptor().delete_single(pnfd_info_id)
return Response(data=None, status=status.HTTP_204_NO_CONTENT)
@swagger_auto_schema(
method='POST',
operation_description="Create a PNFD",
request_body=CreatePnfdInfoRequestSerializer(),
responses={
status.HTTP_201_CREATED: PnfdInfoSerializer(),
status.HTTP_500_INTERNAL_SERVER_ERROR: ProblemDetailsSerializer()
}
)
@swagger_auto_schema(
method='GET',
operation_description="Query multiple PNFDs",
request_body=no_body,
responses={
status.HTTP_200_OK: PnfdInfosSerializer(),
status.HTTP_500_INTERNAL_SERVER_ERROR: ProblemDetailsSerializer()
}
)
@api_view(http_method_names=['POST', 'GET'])
@view_safe_call_with_log(logger=logger)
def pnf_descriptors_rc(request):
if request.method == 'POST':
create_pnfd_info_request = validate_data(request.data, CreatePnfdInfoRequestSerializer)
data = PnfDescriptor().create(create_pnfd_info_request.data)
pnfd_info = validate_data(data, PnfdInfoSerializer)
return Response(data=pnfd_info.data, status=status.HTTP_201_CREATED)
if request.method == 'GET':
data = PnfDescriptor().query_multiple(request)
pnfd_infos = validate_data(data, PnfdInfosSerializer)
return Response(data=pnfd_infos.data, status=status.HTTP_200_OK)
@swagger_auto_schema(
method='PUT',
operation_description="Upload PNFD content",
request_body=no_body,
responses={
status.HTTP_204_NO_CONTENT: "No content",
status.HTTP_500_INTERNAL_SERVER_ERROR: ProblemDetailsSerializer()
}
)
@swagger_auto_schema(
method='GET',
operation_description="Fetch PNFD content",
request_body=no_body,
responses={
status.HTTP_204_NO_CONTENT: 'PNFD file',
status.HTTP_404_NOT_FOUND: ProblemDetailsSerializer(),
status.HTTP_500_INTERNAL_SERVER_ERROR: ProblemDetailsSerializer()
}
)
@api_view(http_method_names=['PUT', 'GET'])
@view_safe_call_with_log(logger=logger)
def pnfd_content_ru(request, **kwargs):
pnfd_info_id = kwargs.get("pnfdInfoId")
if request.method == 'PUT':
files = request.FILES.getlist('file')
try:
local_file_name = PnfDescriptor().upload(files[0], pnfd_info_id)
PnfDescriptor().parse_pnfd_and_save(pnfd_info_id, local_file_name)
return Response(data=None, status=status.HTTP_204_NO_CONTENT)
except Exception as e:
PnfDescriptor().handle_upload_failed(pnfd_info_id)
raise e
if request.method == 'GET':
file_iterator = PnfDescriptor().download(pnfd_info_id)
return StreamingHttpResponse(file_iterator, status=status.HTTP_200_OK)
@swagger_auto_schema(
method='POST',
operation_description="Parse PNF model",
request_body=ParseModelRequestSerializer,
responses={
status.HTTP_202_ACCEPTED: ParseModelResponseSerializer,
status.HTTP_500_INTERNAL_SERVER_ERROR: InternalErrorRequestSerializer})
@api_view(http_method_names=['POST'])
def pnf_model_parser(request, *args, **kwargs):
csar_id = ignore_case_get(request.data, "csarId")
inputs = ignore_case_get(request.data, "inputs")
logger.debug(
"Enter %s, csar_id=%s, inputs=%s",
fun_name(),
csar_id,
inputs)
ret = PnfDescriptor().parse_pnfd(csar_id, inputs)
logger.info("Leave %s, Return value is %s", fun_name(), ret)
if ret[0] != 0:
return Response(data={'error': ret[1]}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
response = validate_data(ret[1], ParseModelResponseSerializer)
return Response(data=response.data, status=status.HTTP_202_ACCEPTED)
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