class StatsEngine(object):
_stats = {}
def __init__(self):
if Configurator.USE_STATS_DB:
# TODO: support stats engines which doesn't rely on mysql
from connectors.mysql import MySqlConnector
params = {
'connection_type': 'connection_string',
'connection_string': Configurator.DATABASES['stats']['HOST'],
'db_name': Configurator.DATABASES['stats']['NAME'],
'db_user': Configurator.DATABASES['stats']['USER'],
'db_password': Configurator.DATABASES['stats']['PASSWORD']
}
self._conn = MySqlConnector(params)
self.gather_statistics = self._gather_statistics
else:
self.gather_statistics = lambda x, y: None
def _gather_statistics(self, source_id, segment_id):
keys = Configurator.OPTIMIZER_STATISTICS['ALL'].keys()
res = self._conn.execute("SELECT {0} FROM {1} WHERE source_id = '{2}' and segment_id = '{3}' "
.format(','.join(keys), 'source_statistics', source_id, segment_id))
return res
def __init__(self):
if Configurator.USE_STATS_DB:
# TODO: support stats engines which doesn't rely on mysql
from connectors.mysql import MySqlConnector
params = {
'connection_type': 'connection_string',
'connection_string': Configurator.DATABASES['stats']['HOST'],
'db_name': Configurator.DATABASES['stats']['NAME'],
'db_user': Configurator.DATABASES['stats']['USER'],
'db_password': Configurator.DATABASES['stats']['PASSWORD']
}
self._conn = MySqlConnector(params)
self.gather_statistics = self._gather_statistics
else:
self.gather_statistics = lambda x, y: None
