def start(self):
try:
self._pdo_lock.acquire()
try:
if self.__running:
return
self.__running = True
self._trendconfig = PersistentDictionary(filename(self),
encode=None,
decode=None)
if not self._trendconfig:
pdodata = PersistentDataObject(self, dmtype=GC_NEVER)
if os.path.exists(pdodata.filename()):
msglog.log('broadway', msglog.types.INFO,
"Migrating previous trend data")
pdodata.trends = {}
pdodata.load()
self._trendconfig.update(pdodata.trends)
del (pdodata)
finally:
self._pdo_lock.release()
super(TrendManager, self).start()
self.logger = node.as_internal_node(self.logger_url)
if self.has_child('trends'):
self.trends = self.get_child('trends')
else:
self.trends = CompositeNode()
self.trends.configure({'parent': self, 'name': 'trends'})
self.trends.start()
corrupt_trends = []
for trendname, trenddump in self._trendconfig.items():
msg = "Loading trend: %s" % trendname
msglog.log('trendmanager', msglog.types.INFO, msg)
try:
trend = unmarshal(trenddump)
except:
corrupt_trends.append(trendname)
msg = "Failed to load trend: %s" % trendname
msglog.log('trendmanager', msglog.types.ERR, msg)
msglog.exception(prefix='Handled')
for trendname in corrupt_trends:
try:
msg = "Deleting trend information: %s" % trendname
msglog.log('trendmanager', msglog.types.INFO, msg)
self._delete_trend_configuration(trendname)
if self.trends.has_child(trendname):
trend = self.trends.get_child(trendname)
trend.prune(force=True)
except:
msglog.exception(prefix='Handled')
except:
self.__running = False
raise
return
def start(self):
try:
self._pdo_lock.acquire()
try:
if self.__running:
return
self.__running = True
self._trendconfig = PersistentDictionary(filename(self), encode=None, decode=None)
if not self._trendconfig:
pdodata = PersistentDataObject(self, dmtype=GC_NEVER)
if os.path.exists(pdodata.filename()):
msglog.log("broadway", msglog.types.INFO, "Migrating previous trend data")
pdodata.trends = {}
pdodata.load()
self._trendconfig.update(pdodata.trends)
del (pdodata)
finally:
self._pdo_lock.release()
super(TrendManager, self).start()
self.logger = node.as_internal_node(self.logger_url)
if self.has_child("trends"):
self.trends = self.get_child("trends")
else:
self.trends = CompositeNode()
self.trends.configure({"parent": self, "name": "trends"})
self.trends.start()
corrupt_trends = []
for trendname, trenddump in self._trendconfig.items():
msg = "Loading trend: %s" % trendname
msglog.log("trendmanager", msglog.types.INFO, msg)
try:
trend = unmarshal(trenddump)
except:
corrupt_trends.append(trendname)
msg = "Failed to load trend: %s" % trendname
msglog.log("trendmanager", msglog.types.ERR, msg)
msglog.exception(prefix="Handled")
for trendname in corrupt_trends:
try:
msg = "Deleting trend information: %s" % trendname
msglog.log("trendmanager", msglog.types.INFO, msg)
self._delete_trend_configuration(trendname)
if self.trends.has_child(trendname):
trend = self.trends.get_child(trendname)
trend.prune(force=True)
except:
msglog.exception(prefix="Handled")
except:
self.__running = False
raise
return
