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# ============LICENSE_START===================================================
# Copyright (C) 2019-2020 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 sqlalchemy import Column, Integer, String, ForeignKey
from sqlalchemy.orm import relationship
from mod import db
class SubscriptionModel(db.Model):
__tablename__ = 'subscriptions'
id = Column(Integer, primary_key=True, autoincrement=True)
subscription_name = Column(String(100), unique=True)
status = Column(String(20))
nfs = relationship(
'NfSubRelationalModel',
cascade='all, delete-orphan',
backref='subscription')
def __init__(self, subscription_name, status):
self.subscription_name = subscription_name
self.status = status
def __repr__(self):
return f'subscription_name: {self.subscription_name}, status: {self.status}'
def __eq__(self, other):
if isinstance(self, other.__class__):
return self.subscription_name == other.subscription_name
return False
def serialize(self):
sub_nfs = NfSubRelationalModel.query.filter(
NfSubRelationalModel.subscription_name == self.subscription_name).all()
db.session.remove()
return {'subscription_name': self.subscription_name, 'subscription_status': self.status,
'network_functions': [sub_nf.serialize_nf() for sub_nf in sub_nfs]}
class NetworkFunctionModel(db.Model):
__tablename__ = 'network_functions'
id = Column(Integer, primary_key=True, autoincrement=True)
nf_name = Column(String(100), unique=True)
ip_address = Column(String(50))
model_invariant_id = Column(String(100))
model_version_id = Column(String(100))
model_name = Column(String(100))
sdnc_model_name = Column(String(100))
sdnc_model_version = Column(String(100))
subscriptions = relationship(
'NfSubRelationalModel',
cascade='all, delete-orphan',
backref='nf')
def __init__(self, nf_name, ip_address, model_invariant_id,
model_version_id, model_name, sdnc_model_name,
sdnc_model_version):
self.nf_name = nf_name
self.ip_address = ip_address
self.model_invariant_id = model_invariant_id
self.model_version_id = model_version_id
self.model_name = model_name
self.sdnc_model_name = sdnc_model_name
self.sdnc_model_version = sdnc_model_version
def __repr__(self):
return str(self.to_nf())
def to_nf(self):
from mod.network_function import NetworkFunction
return NetworkFunction(sdnc_model_name=self.sdnc_model_name,
sdnc_model_version=self.sdnc_model_version,
**{'nf_name': self.nf_name,
'ip_address': self.ip_address,
'model_invariant_id': self.model_invariant_id,
'model_version_id': self.model_version_id})
class NfSubRelationalModel(db.Model):
__tablename__ = 'nf_to_sub_rel'
__mapper_args__ = {
'confirm_deleted_rows': False
}
id = Column(Integer, primary_key=True, autoincrement=True)
subscription_name = Column(
String,
ForeignKey(SubscriptionModel.subscription_name, ondelete='cascade', onupdate='cascade')
)
nf_name = Column(
String,
ForeignKey(NetworkFunctionModel.nf_name, ondelete='cascade', onupdate='cascade')
)
nf_sub_status = Column(String(20))
def __init__(self, subscription_name, nf_name, nf_sub_status=None):
self.subscription_name = subscription_name
self.nf_name = nf_name
self.nf_sub_status = nf_sub_status
def __repr__(self):
return f'subscription_name: {self.subscription_name}, ' \
f'nf_name: {self.nf_name}, nf_sub_status: {self.nf_sub_status}'
def serialize(self):
return {'subscription_name': self.subscription_name, 'nf_name': self.nf_name,
'nf_sub_status': self.nf_sub_status}
def serialize_nf(self):
nf = NetworkFunctionModel.query.filter(
NetworkFunctionModel.nf_name == self.nf_name).one_or_none()
db.session.remove()
return {'nf_name': self.nf_name,
'ip_address': nf.ip_address,
'nf_sub_status': self.nf_sub_status,
'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}
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