class ItemProcessingController(object):
""""""
#----------------------------------------------------------------------
def __init__(self, shutdown_event, items, database, sender):
self._database = database
self._items = items
self._sender = sender
self._shutdown_event = shutdown_event
self._item = None
self._process_date = None
self._item_processor = None
self._update_interval = None
self._logger = get_logger()
#----------------------------------------------------------------------
def start(self):
self._setup_update_interval()
self._item_processor = ItemProcessor(self._items, self._database)
self._process_until_shutdown()
#----------------------------------------------------------------------
def _setup_update_interval(self):
minimum_update_interval = 3600
for item in self._items:
interval = item.get_update_interval()
minimum_update_interval = min(minimum_update_interval, interval)
self._update_interval = minimum_update_interval
#----------------------------------------------------------------------
def _process_until_shutdown(self):
while not self._shutdown_event.isSet():
self._store_process_date()
# process items and collect new values
self._item_processor.process()
# send previously collected item values to the Zabbix server
self._sender.send(process_date=self._process_date)
self._sleep()
#----------------------------------------------------------------------
def _store_process_date(self):
self._process_date = time()
#----------------------------------------------------------------------
def _sleep(self):
next_processdate = self._process_date + self._update_interval
sleep_seconds = next_processdate - time()
self._logger.debug('Sleep for %s seconds' % (sleep_seconds))
self._shutdown_event.wait(sleep_seconds)
def start(self):
self._setup_update_interval()
self._item_processor = ItemProcessor(self._items, self._database)
self._process_until_shutdown()
