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  • # Copyright 2022-2024 ETSI OSG/SDG TeraFlowSDN (TFS) (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, signal, sys, threading, time
    from prometheus_client import start_http_server
    from common.Settings import  get_log_level
    from .NameMapping import NameMapping          # import updated
    from .KpiValueApiService import KpiValueApiService
    
    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 # pylint: disable=global-statement
    
        log_level = get_log_level()
        logging.basicConfig(level=log_level)
        LOGGER = logging.getLogger(__name__)
    
        signal.signal(signal.SIGINT,  signal_handler)
        signal.signal(signal.SIGTERM, signal_handler)
    
        LOGGER.debug('Starting...')
    
        name_mapping = NameMapping()
    
        grpc_service = KpiValueApiService(name_mapping)
        grpc_service.start()
    
        # Wait for Ctrl+C or termination signal
        while not terminate.wait(timeout=1.0): pass
    
        LOGGER.debug('Terminating...')
        grpc_service.stop()
    
        LOGGER.debug('Bye')
        return 0
    
    if __name__ == '__main__':
        sys.exit(main())