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# ============LICENSE_START===================================================
# Copyright (C) 2021-2022 Nordix Foundation.
# ============================================================================
# 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.
#
# SPDX-License-Identifier: Apache-2.0
# ============LICENSE_END=====================================================
from mod import db, aai_client, logger
from mod.api.db_models import NetworkFunctionModel
from mod.pmsh_config import AppConfig
from mod.network_function import NetworkFunctionFilter
def capture_filtered_nfs(sub_name):
"""
Retrieves network functions from AAI client and
returns a list of filtered NetworkFunctions using the Filter
Args:
sub_name (string): The name of subscription inorder to perform filtering
Returns:
list[NetworkFunction]: a list of filtered NetworkFunction Objects
or an empty list if no network function is filtered.
"""
logger.info(f'Getting filtered nfs for subscription: {sub_name}')
nf_filter = NetworkFunctionFilter.get_network_function_filter(sub_name)
return aai_client.get_pmsh_nfs_from_aai(AppConfig.get_instance(), nf_filter)
def create_nf_event_body(nf, change_type, sub_model):
"""
Creates a network function event body to publish on MR
Args:
nf (NetworkFunction): the Network function to include in the event.
change_type (string): define the change type to be applied on node
sub_model(SubscriptionModel): Subscription model object
Returns:
dict: network function event body to publish on MR.
"""
return {'nfName': nf.nf_name,
'ipAddress': nf.ipv4_address if nf.ipv6_address in (None, '')
else nf.ipv6_address,
'blueprintName': nf.sdnc_model_name,
'blueprintVersion': nf.sdnc_model_version,
'operationalPolicyName': sub_model.operational_policy_name,
'changeType': change_type,
'controlLoopName': sub_model.control_loop_name}
def save_nf(nf):
"""
Saves the network function request to the db
Args:
nf (NetworkFunction) : requested network function to save
"""
network_function = NetworkFunctionModel(nf_name=nf.nf_name,
ipv4_address=nf.ipv4_address,
ipv6_address=nf.ipv6_address,
model_invariant_id=nf.model_invariant_id,
model_version_id=nf.model_version_id,
model_name=nf.model_name,
sdnc_model_name=nf.sdnc_model_name,
sdnc_model_version=nf.sdnc_model_version)
db.session.add(network_function)
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