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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
import traceback
from django.http import FileResponse
from catalog.packages.biz.pnf_descriptor import PnfPackage, parse_pnfd_and_save, handle_upload_failed
from catalog.packages.serializers.create_pnfd_info_request import CreatePnfdInfoRequestSerializer
from catalog.packages.serializers.pnfd_info import PnfdInfoSerializer
from catalog.packages.serializers.pnfd_infos import PnfdInfosSerializer
from catalog.pub.exceptions import CatalogException, ResourceNotFoundException
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 catalog.packages.views.ns_descriptor_views import validate_data
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: "PNFD does not exist.",
status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
}
)
@swagger_auto_schema(
method='DELETE',
operation_description="Delete a PNFD",
request_body=no_body,
responses={
status.HTTP_204_NO_CONTENT: None,
status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
}
)
@api_view(http_method_names=['GET', 'DELETE'])
def pnfd_info_rd(request, pnfdInfoId): # TODO
if request.method == 'GET':
logger.debug("Query an individual PNF descriptor> %s" % request.data)
try:
data = PnfPackage().query_single(pnfdInfoId)
pnfd_info = validate_data(data, PnfdInfoSerializer)
return Response(data=pnfd_info.data, status=status.HTTP_200_OK)
except ResourceNotFoundException as e:
logger.error(e.message)
return Response(data={'error': "PNFD does not exist."}, status=status.HTTP_404_NOT_FOUND)
except Exception as e:
logger.error(e.message)
logger.error(traceback.format_exc())
error_msg = {'error': 'Query of a PNFD failed.'}
return Response(data=error_msg, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
if request.method == 'DELETE':
logger.debug("Delete an individual PNFD resource> %s" % request.data)
try:
PnfPackage().delete_single(pnfdInfoId)
return Response(data=None, status=status.HTTP_204_NO_CONTENT)
except CatalogException as e:
logger.error(e.message)
error_msg = {'error': 'Deletion of a PNFD failed.'}
except Exception as e:
logger.error(e.message)
logger.error(traceback.format_exc())
error_msg = {'error': 'Deletion of a PNFD failed.'}
return Response(data=error_msg, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
@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: "Internal error"
}
)
@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: "Internal error"
}
)
@api_view(http_method_names=['POST', 'GET'])
def pnf_descriptors_rc(request, *args, **kwargs):
if request.method == 'POST':
try:
create_pnfd_info_request = validate_data(request.data, CreatePnfdInfoRequestSerializer)
data = PnfPackage().create(create_pnfd_info_request.data)
pnfd_info = validate_data(data, PnfdInfoSerializer)
return Response(data=pnfd_info.data, status=status.HTTP_201_CREATED)
except CatalogException as e:
logger.error(e.message)
error_msg = {'error': 'Creating a pnfd failed.'}
except Exception as e:
logger.error(e.message)
logger.error(traceback.format_exc())
error_msg = {'error': 'Creating a pnfd failed.'}
return Response(data=error_msg, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
if request.method == 'GET':
try:
data = PnfPackage().query_multiple()
pnfd_infos = validate_data(data, PnfdInfosSerializer)
return Response(data=pnfd_infos.data, status=status.HTTP_200_OK)
except Exception as e:
logger.error(e.message)
logger.error(traceback.format_exc())
error_msg = {'error': 'Query of multiple PNFDs failed.'}
return Response(data=error_msg, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
@swagger_auto_schema(
method='PUT',
operation_description="Upload PNFD content",
request_body=no_body,
responses={
status.HTTP_204_NO_CONTENT: None,
status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
}
)
@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: "PNFD does not exist.",
status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
}
)
@api_view(http_method_names=['PUT', 'GET'])
def pnfd_content_ru(request, *args, **kwargs):
pnfd_info_id = kwargs.get("pnfdInfoId")
if request.method == 'PUT':
files = request.FILES.getlist('file')
try:
local_file_name = PnfPackage().upload(files[0], pnfd_info_id)
parse_pnfd_and_save(pnfd_info_id, local_file_name)
return Response(data=None, status=status.HTTP_204_NO_CONTENT)
except CatalogException as e:
handle_upload_failed(pnfd_info_id)
logger.error(e.message)
error_msg = {'error': 'Uploading PNFD content failed.'}
except Exception as e:
handle_upload_failed(pnfd_info_id)
logger.error(e.message)
logger.error(traceback.format_exc())
error_msg = {'error': 'Uploading PNFD content failed.'}
return Response(data=error_msg, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
if request.method == 'GET':
try:
file_path, file_name, file_size = PnfPackage().download(pnfd_info_id)
response = FileResponse(open(file_path, 'rb'), status=status.HTTP_200_OK)
response['Content-Disposition'] = 'attachment; filename=%s' % file_name.encode('utf-8')
response['Content-Length'] = file_size
return response
except ResourceNotFoundException as e:
logger.error(e.message)
return Response(data={'error': "PNFD does not exist."}, status=status.HTTP_404_NOT_FOUND)
except CatalogException as e:
logger.error(e.message)
error_msg = {'error': 'Downloading PNFD content failed.'}
except Exception as e:
logger.error(e.message)
logger.error(traceback.format_exc())
error_msg = {'error': 'Downloading PNFD content failed.'}
return Response(data=error_msg, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
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