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# Copyright 2022-2023 ETSI TeraFlowSDN - TFS OSG (https://tfs.etsi.org/)
#
# 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 sqlalchemy import Column, Integer, String, Float, Text, ForeignKey
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker, relationship
logging.basicConfig(level=logging.INFO)
LOGGER = logging.getLogger(__name__)
# Create a base class for declarative models
Base = declarative_base()
class Kpi(Base):
__tablename__ = 'KPI'
kpi_id = Column(Integer, primary_key=True, autoincrement=True)
kpi_description = Column(Text)
kpi_sample_type = Column(Integer)
device_id = Column(String)
endpoint_id = Column(String)
service_id = Column(String)
slice_id = Column(String)
connection_id = Column(String)
link_id = Column(String)
monitor_flag = Column(String)
# Relationship to Collector model: allows access to related Collector objects from a Kpi object
collectors = relationship('Collector', back_populates='kpi')
class Collector(Base):
__tablename__ = 'collector'
collector_id = Column(Integer, primary_key=True, autoincrement=True)
kpi_id = Column(Integer, ForeignKey('KPI.kpi_id'))
collector = Column(String)
sampling_duration_s = Column(Float)
sampling_interval_s = Column(Float)
start_timestamp = Column(Float)
end_timestamp = Column(Float)
# Relationship to Kpi model: allows access to the related Kpi object from a Collector object
kpi = relationship('Kpi', back_populates='collectors')