Esempio n. 1
0
    def _init(self):
        args = self._arg.parse_args()
        config_file = str(args.config_file)
        topology = str(args.topology)
        topology_path = os.path.abspath(topology)
        self._log.info(self.__class__.__name__, 'Creating the topology.')
        self._topology = Topology(topology_path)

        # Parse config_file
        self._log.info(self.__class__.__name__, 'Parsing configuration file.')
        self._parser.parse(config_file)
Esempio n. 2
0
class ComparisonFramework(object):
    def __init__(self):
        # Get a logger
        self._log = Logger.get_instance()
        # Create the parser
        self._parser = Parser()
        # The topology
        self._topology = None
        # Factory loader. For each alternative, a new environment is loaded in accord with the alternative itself.
        self._loader = EnvironmentLoader()

        # ArgParse
        self._arg = argparse.ArgumentParser(description='Comparison Framework')
        self._arg.add_argument('-c',
                               '--config-file',
                               required=True,
                               help='The framework configuration file.')
        self._arg.add_argument('-t',
                               '--topology',
                               required=True,
                               help='The topology on which framework runs. It must be a GraphML file.')

    def __repr__(self):
        return "Comparison Framework v. 0.1"

    '''
    Initialize the framework, namely take arguments, create the topology and parse the configuration file.
    '''
    def _init(self):
        args = self._arg.parse_args()
        config_file = str(args.config_file)
        topology = str(args.topology)
        topology_path = os.path.abspath(topology)
        self._log.info(self.__class__.__name__, 'Creating the topology.')
        self._topology = Topology(topology_path)

        # Parse config_file
        self._log.info(self.__class__.__name__, 'Parsing configuration file.')
        self._parser.parse(config_file)

    '''
    Run the framework
    '''
    def run(self):
        self._init()

        # Run simulation: for each service to evaluate, create a simulation and delegate to the loader objects
        # the decision about the environment to load based on the alternatives
        services = self._parser.get_services()

        for service in services:
            # For each alternative of this service, create a simulation
            for alternative in service.get_alternatives():
                '''
                Creating overlay and adding it to the topology object.
                '''
                self._log.info(self.__class__.__name__, 'Creating overlay for alternative %s.', alternative.get_name())
                # Creating the overlay for current alternative
                overlay = alternative.create_overlay(self._topology.get_topology_from_graphml())
                self._log.info(self.__class__.__name__, 'Adding overlay %s for alternative %s to the topology.',
                               overlay.get_name(), alternative.get_name())
                self._topology.add_overlay(overlay)

                '''
                Loading environment, creating the simulation and running it.
                '''
                self._log.info(self.__class__.__name__, 'Loading the environment for the alternative %s.', alternative)
                # Load an environment for the current alternative of this service
                environment = self._loader.load(alternative.get_environment())
                # Create the simulation
                simulation = Simulation(self._topology, service, environment, alternative)
                self._log.info(
                    self.__class__.__name__,
                    'A new simulation has been created for service %s and alternative %s.',
                    service.get_name(), alternative)
                # Run the simulation
                simulation.start()
                simulation.join()

            self._log.info(self.__class__.__name__, 'All alternatives for service %s have been successfully tested.',
                           service.get_name())

        self._log.info(self.__class__.__name__, 'All services have been successfully tested; framework will stop.')