Not required in service

# 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 sys

import signal

import logging

import threading

from prometheus_client import start_http_server

from monitoring.service.NameMapping import NameMapping

from .KafkaProducerService import KafkaProducerService

from common.Settings import (

    get_log_level,

    get_metrics_port)

terminate = threading.Event()

LOGGER = None

def signal_handler(signal, frame): # pylint: disable=redefined-outer-name

    LOGGER.warning('Terminate signal received')

    terminate.set()

def main():

    global LOGGER

    log_level = get_log_level()

    logging.basicConfig(level=log_level, format="[%(asctime)s] %(levelname)s:%(name)s:%(message)s")

    LOGGER = logging.getLogger(__name__)

# ------- will be added later --------------

    # wait_for_environment_variables([

    #     get_env_var_name

    # ])

# ------- will be added later --------------

    signal.signal(signal.SIGINT,  signal_handler)

    signal.signal(signal.SIGTERM, signal_handler)

    LOGGER.info('Starting Telemetry Backend...')

    # Start metrics server

    metrics_port = get_metrics_port()

    start_http_server(metrics_port)

    name_mapping = NameMapping()

    grpc_service = KafkaProducerService(name_mapping)

    grpc_service.start()

    # Wait for Ctrl+C or termination signal

    while not terminate.wait(timeout=1.0): pass

    LOGGER.info('Terminating...')

    grpc_service.stop()

    LOGGER.info('Bye')

    return 0

if __name__ == '__main__':

    sys.exit(main())

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