def __init__(self):
""" Constructor """
# Init the settings.
self.settings_manager = SettingsManager()
self.__service_connectors = {}
class ServiceManager(object):
""" Service Manager class.
Maintains and controls all services and settings.
"""
__SERVICE_PATH = {
ServiceId.CAPTURE: path.abspath(capture.__file__).rstrip('c'),
ServiceId.AUDIO_EFFECT: path.abspath(audio.__file__).rstrip(
'c')
}
def __init__(self):
""" Constructor """
# Init the settings.
self.settings_manager = SettingsManager()
self.__service_connectors = {}
def __create_service(self, service_id):
# Start the service.
connector = ServiceConnector(True)
self.__service_connectors[service_id] = connector
Popen(["python", ServiceManager.__SERVICE_PATH[service_id], "--port",
str(connector.get_port())])
# Await initial state update to ensure that service has been started.
connector.wait_for_update() # TODO Detect error using timeout
def start(self):
""" Start services. """
# Create services.
self.__create_service(ServiceId.CAPTURE)
self.__create_service(ServiceId.AUDIO_EFFECT)
# Update settings.
self.update_settings()
# Enable services.
# self.get_service(ServiceId.CAPTURE).enable(True)
self.get_service(ServiceId.AUDIO_EFFECT).enable(True)
def update_settings(self):
""" Updates all services with the latest settings. """
print("Manager: Sending settings")
settings = self.settings_manager.get_settings()
for service_connector in self.__service_connectors.itervalues():
service_connector.update_settings(settings)
def shutdown(self):
""" Shutdown services and save settings. """
print "Manager: Shutting down services"
# Shutdown services.
for service_connector in self.__service_connectors.itervalues():
service_connector.shutdown()
# Save all settings to storage.
self.settings_manager.save_settings()
def get_service(self, service_id):
""" Getter for service connectors.
- service_id : the service id
"""
return self.__service_connectors[service_id]