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# -------------------------------------------------------------------------
# Copyright (c) 2015-2017 AT&T Intellectual Property
#
# 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 copy
import json
from osdf.utils import data_mapping
from jinja2 import Template
from osdf.utils.programming_utils import list_flatten, dot_notation
import osdf.optimizers.placementopt.conductor.translation as tr
from osdf.adapters.policy.utils import group_policies
def conductor_api_builder(request_json, flat_policies: list, local_config, prov_status,
template="templates/conductor_interface.json"):
"""Build a SNIRO southbound API call for Conductor/Placement optimization
:param request_json: parameter data received from a client
:param flat_policies: policy data received from the policy platform (flat policies)
:param template: template to generate southbound API call to conductor
:param local_config: local configuration file with pointers for the service specific information
:param prov_status: provStatus retrieved from Subscriber policy
:return: json to be sent to Conductor/placement optimization
"""
templ = Template(open(template).read())
gp = group_policies(flat_policies)
demand_vnf_name_list = []
for placementDemand in request_json['placementInfo']['demandInfo']['placementDemand']:
demand_vnf_name_list.append(placementDemand['resourceModuleName'])
demand_list = tr.gen_demands(request_json['placementInfo']['demandInfo'], gp['vnfPolicy'])
attribute_policy_list = tr.gen_attribute_policy(demand_vnf_name_list, gp['attribute'])
distance_to_location_policy_list = tr.gen_distance_to_location_policy(
demand_vnf_name_list, gp['distance_to_location'])
inventory_policy_list = tr.gen_inventory_group_policy(demand_vnf_name_list, gp['inventory_group'])
resource_instance_policy_list = tr.gen_resource_instance_policy(
demand_vnf_name_list, gp['instance_fit'])
resource_region_policy_list = tr.gen_resource_region_policy(demand_vnf_name_list, gp['region_fit'])
zone_policy_list = tr.gen_zone_policy(demand_vnf_name_list, gp['zone'])
optimization_policy_list = tr.gen_optimization_policy(demand_vnf_name_list, gp['placementOptimization'])
reservation_policy_list = tr.gen_reservation_policy(demand_vnf_name_list, gp['instance_reservation'])
conductor_policies = [attribute_policy_list, distance_to_location_policy_list, inventory_policy_list,
resource_instance_policy_list, resource_region_policy_list, zone_policy_list]
filtered_policies = [x for x in conductor_policies if len(x) > 0]
policy_groups = list_flatten(filtered_policies)
reservation_policies = [x for x in reservation_policy_list if len(x) > 0]
reservation_groups = list_flatten(reservation_policies)
req_info = request_json['requestInfo']
model_name = request_json['placementInfo']['serviceModelInfo']['modelName']
service_type = data_mapping.get_service_type(model_name)
service_info = local_config.get('service_info', {}).get(service_type, {})
if 'orderInfo' in request_json["placementInfo"]:
order_info = json.loads(request_json["placementInfo"]["orderInfo"])
request_type = req_info.get('requestType', None)
subs_com_site_id = ""
if 'subscriberInfo' in request_json['placementInfo']:
subs_com_site_id = request_json['placementInfo']['subscriberInfo'].get('subscriberCommonSiteId', "")
if service_type == 'vCPE':
data_mapping.normalize_user_params(order_info)
rendered_req = templ.render(
requestType=request_type,
chosenComplex=subs_com_site_id,
demand_list=demand_list,
policy_groups=policy_groups,
optimization_policies=optimization_policy_list,
name=req_info['requestId'],
timeout=req_info['timeout'],
limit=req_info['numSolutions'],
serviceType=service_type,
serviceInstance=request_json['placementInfo']['serviceInstanceId'],
provStatus = prov_status,
chosenRegion=order_info['requestParameters']['lcpCloudRegionId'],
json=json)
elif service_type == 'UNKNOWN':
rendered_req = templ.render(
requestType=request_type,
chosenComplex=subs_com_site_id,
demand_list=demand_list,
policy_groups=policy_groups,
reservation_groups=reservation_groups,
optimization_policies=optimization_policy_list,
name=req_info['requestId'],
timeout=req_info['timeout'],
limit=req_info['numSolutions'],
serviceType=service_type,
serviceInstance=request_json['placementInfo']['serviceInstanceId'],
provStatus = prov_status,
# process order data
bandwidth=dot_notation(order_info, service_info['bandwidth']),
bandwidth_unit=dot_notation(order_info, service_info['bandwidth_units']),
json=json)
json_payload = json.dumps(json.loads(rendered_req)) # need this because template's JSON is ugly!
return json_payload
def retrieve_node(req_json, reference):
"""
Get the child node(s) from the dot-notation [reference] and parent [req_json].
For placement and other requests, there are encoded JSONs inside the request or policy,
so we need to expand it and then do a search over the parent plus expanded JSON.
"""
req_json_copy = copy.deepcopy(req_json) # since we expand the JSON in place, we work on a copy
if 'orderInfo' in req_json_copy['placementInfo']:
req_json_copy['placementInfo']['orderInfo'] = json.loads(req_json_copy['placementInfo']['orderInfo'])
info = dot_notation(req_json_copy, reference)
return list_flatten(info) if isinstance(info, list) else info
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