bumblebee-status/bumblebee/engine.py
Tobi-wan Kenobi a2c6214baa [core/engine] Add module loading logic
Allow the engine to load modules from the bumblebee/modules/ directory.

see #23
2016-12-04 11:09:10 +01:00

51 lines
1.4 KiB
Python

"""Core application engine"""
import importlib
class Module(object):
"""Module instance base class
Objects of this type represent the modules that
the user configures. Concrete module implementations
(e.g. CPU utilization, disk usage, etc.) derive from
this base class.
"""
def __init__(self, engine):
pass
class Engine(object):
"""Engine for driving the application
This class connects input/output, instantiates all
required modules and drives the "event loop"
"""
def __init__(self, config):
self._running = True
self._modules = []
self.load_modules(config.modules())
def load_modules(self, modules):
"""Load specified modules and return them as list"""
for module in modules:
self._modules.append(self.load_module(module["module"]))
return self._modules
def load_module(self, module_name):
"""Load specified module and return it as object"""
module = importlib.import_module("bumblebee.modules.{}".format(module_name))
return getattr(module, "Module")(self)
def running(self):
"""Check whether the event loop is running"""
return self._running
def stop(self):
"""Stop the event loop"""
self._running = False
def run(self):
"""Start the event loop"""
while self.running():
pass
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