class ScheduleModule(ScheduleBase):
"""
Scheduler module for keeping the cluster index up to date.
"""
def __init__(self):
super(ScheduleModule, self).__init__(__name__)
# Cache manager
self.cache = CacheManager()
def _worker(self):
"""
Internal method for running the cache manager.
"""
while True:
self.log.info('Refreshing database cache')
# Build a list of ACL objects
acl_objects = list(DBAuthACLObjects.objects.all().values())
# Process each ACL object type
for acl_object in acl_objects:
obj_type = acl_object['type']
# Get an instance of the object class
obj_mod = importlib.import_module(acl_object['obj_mod'])
obj_class = getattr(obj_mod, acl_object['obj_cls'])
obj_key = acl_object['obj_key']
# Process and cache each object
for obj_details in list(obj_class.objects.all().values()):
obj_id = obj_details[obj_key]
# Update the cache
self.cache.save_object(obj_type, obj_id)
# Rebuild cache every minute
self.time.sleep(60)
def launch(self):
"""
Worker method for running the the schedule indexer.
"""
# Start the cache worker
try:
self._worker()
# Critical error when running cache scheduler
except Exception as e:
self.log.exception('Error when running cache scheduler: %s' % str(e))
