def restore(self):
"""
Called when the handler recovers after a Server reload. Called
by the Server process as part of the reload upstart. Here we
overload the tickerhandler's restore method completely to make
sure we correctly re-apply and re-initialize the correct
monitor and repeater objecth on all saved objects.
"""
# load the oob monitors and initialize them
oob_storage = ServerConfig.objects.conf(key=self.oob_save_name)
if oob_storage:
self.oob_storage = dbunserialize(oob_storage)
for store_key, (args, kwargs) in self.oob_storage.items():
# re-create the monitors
obj, sessid, fieldname, oobfuncname = store_key
obj = unpack_dbobj(obj)
self._add_monitor(obj, sessid, fieldname, oobfuncname, *args, **kwargs)
# handle the tickers (same as in TickerHandler except we call
# the add_repeater method which makes sure to add the hooks before
# starting the tickerpool)
ticker_storage = ServerConfig.objects.conf(key=self.save_name)
if ticker_storage:
self.ticker_storage = dbunserialize(ticker_storage)
for store_key, (args, kwargs) in self.ticker_storage.items():
obj, interval, idstring = store_key
obj = unpack_dbobj(obj)
# we saved these in add_repeater before, can now retrieve them
sessid = kwargs["_sessid"]
oobfuncname = kwargs["_oobfuncname"]
self.add_repeater(obj, sessid, oobfuncname, interval, *args, **kwargs)
def restore(self):
"""
Called when the handler recovers after a Server reload. Called
by the Server process as part of the reload upstart. Here we
overload the tickerhandler's restore method completely to make
sure we correctly re-apply and re-initialize the correct
monitor and repeater objecth on all saved objects.
"""
# load the oob monitors and initialize them
oob_storage = ServerConfig.objects.conf(key=self.oob_save_name)
if oob_storage:
self.oob_storage = dbunserialize(oob_storage)
for store_key, (args, kwargs) in self.oob_storage.items():
# re-create the monitors
obj, sessid, fieldname, oobfuncname = store_key
obj = unpack_dbobj(obj)
self._add_monitor(obj, sessid, fieldname, oobfuncname, *args, **kwargs)
# handle the tickers (same as in TickerHandler except we call
# the add_repeater method which makes sure to add the hooks before
# starting the tickerpool)
ticker_storage = ServerConfig.objects.conf(key=self.save_name)
if ticker_storage:
self.ticker_storage = dbunserialize(ticker_storage)
for store_key, (args, kwargs) in self.ticker_storage.items():
obj, interval, idstring = store_key
obj = unpack_dbobj(obj)
# we saved these in add_repeater before, can now retrieve them
sessid = kwargs["_sessid"]
oobfuncname = kwargs["_oobfuncname"]
self.add_repeater(obj, sessid, oobfuncname, interval, *args, **kwargs)
def restore(self):
"""
Restore ticker_storage from database and re-initialize the handler from storage. This is triggered by the server at restart.
"""
# load stored command instructions and use them to re-initialize handler
ticker_storage = ServerConfig.objects.conf(key=self.save_name)
if ticker_storage:
self.ticker_storage = dbunserialize(ticker_storage)
#print "restore:", self.ticker_storage
for store_key, (args, kwargs) in self.ticker_storage.items():
obj, interval, idstring = store_key
obj = unpack_dbobj(obj)
_, store_key = self._store_key(obj, interval, idstring)
self.ticker_pool.add(store_key, obj, interval, *args, **kwargs)
def restore(self):
"""
Restore ticker_storage from database and re-initialize the handler from storage. This is triggered by the server at restart.
"""
# load stored command instructions and use them to re-initialize handler
ticker_storage = ServerConfig.objects.conf(key=self.save_name)
if ticker_storage:
self.ticker_storage = dbunserialize(ticker_storage)
#print "restore:", self.ticker_storage
for store_key, (args, kwargs) in self.ticker_storage.items():
obj, interval, idstring = store_key
obj = unpack_dbobj(obj)
_, store_key = self._store_key(obj, interval, idstring)
self.ticker_pool.add(store_key, obj, interval, *args, **kwargs)
def get_all_monitors(self, session):
"""
Get the names of all variables this session is tracking.
Args:
session (Session): Session monitoring.
Returns:
stored monitors (tuple): A list of tuples
`(obj, fieldname, args, kwargs)` representing all
the monitoring the Session with the given sessid is doing.
"""
sessid = session.sessid
# [(obj, fieldname, args, kwargs), ...]
return [(unpack_dbobj(key[0]), key[2], stored[0], stored[1])
for key, stored in self.oob_monitor_storage.items() if key[1] == sessid]
def get_all_monitors(self, sessid):
"""
Get the names of all variables this session is tracking.
Args:
sessid (id): Session id of monitoring Session
Returns:
stored monitors (tuple): A list of tuples
`(obj, fieldname, args, kwargs)` representing all
the monitoring the Session with the given sessid is doing.
"""
# check so we didn't get a session instead of a sessid
if not isinstance(sessid, int):
sessid = sessid.sessid
# [(obj, fieldname, args, kwargs), ...]
return [(unpack_dbobj(key[0]), key[2], stored[0], stored[1])
for key, stored in self.oob_monitor_storage.items() if key[1] == sessid]
def get_all_monitors(self, session):
"""
Get the names of all variables this session is tracking.
Args:
session (Session): Session monitoring.
Returns:
stored monitors (tuple): A list of tuples
`(obj, fieldname, args, kwargs)` representing all
the monitoring the Session with the given sessid is doing.
"""
sessid = session.sessid
# [(obj, fieldname, args, kwargs), ...]
return [(unpack_dbobj(key[0]), key[2], stored[0], stored[1])
for key, stored in self.oob_monitor_storage.items()
if key[1] == sessid]
