def Broken(self, oid, pair):
broken_klasses_lock.acquire()
try:
if pair in broken_klasses:
klass = broken_klasses[pair]
else:
module, klassname = pair
d = {'BrokenClass': BrokenClass}
exec(
"class %s(BrokenClass): ' '; __module__=%r" %
(klassname, module), d)
klass = broken_klasses[pair] = d[klassname]
module = module.split('.')
if len(module) > 2 and module[0] == 'Products':
klass.product_name = module[1]
klass.title = ('This object from the %s product '
'is broken!' % klass.product_name)
klass.info = ('This object\'s class was %s in module %s.' %
(klass.__name__, klass.__module__))
klass = persistentBroken(klass)
LOG.warning('Could not import class %r '
'from module %r' % (klass.__name__, klass.__module__))
finally:
broken_klasses_lock.release()
if oid is None:
return klass
i = klass()
i._p_oid = oid
i._p_jar = self
return i
def load_persistent(self, oid, klass):
# Quick instance reference. We know all we need to know
# to create the instance w/o hitting the db, so go for it!
if not isinstance(oid, bytes):
assert isinstance(oid, str)
# this happens on Python 3 when all bytes in the oid are < 0x80
oid = oid.encode("ascii")
obj = self._cache.get(oid, None)
if obj is not None:
return obj
if isinstance(klass, tuple):
klass = self._get_class(*klass)
if issubclass(klass, broken.Broken):
# We got a broken class. We might need to make it
# PersistentBroken
if not issubclass(klass, broken.PersistentBroken):
klass = broken.persistentBroken(klass)
try:
obj = klass.__new__(klass)
except TypeError:
# Couldn't create the instance. Maybe there's more
# current data in the object's actual record!
return self._conn.get(oid)
# TODO: should be done by connection
self._cache.new_ghost(oid, obj)
return obj
def getGhost(self, pickle):
unpickler = self._get_unpickler(pickle)
klass = unpickler.load()
if isinstance(klass, tuple):
# Here we have a separate class and args.
# This could be an old record, so the class module ne a named
# refernce
klass, args = klass
if isinstance(klass, tuple):
# Old module_name, class_name tuple
klass = self._get_class(*klass)
if args is None:
args = ()
else:
# Definitely new style direct class reference
args = ()
if issubclass(klass, broken.Broken):
# We got a broken class. We might need to make it
# PersistentBroken
if not issubclass(klass, broken.PersistentBroken):
klass = broken.persistentBroken(klass)
return klass.__new__(klass, *args)
def load_persistent(self, oid, klass):
# Quick instance reference. We know all we need to know
# to create the instance w/o hitting the db, so go for it!
obj = self._cache.get(oid, None)
if obj is not None:
return obj
if isinstance(klass, tuple):
klass = self._get_class(*klass)
if issubclass(klass, Broken):
# We got a broken class. We might need to make it
# PersistentBroken
if not issubclass(klass, broken.PersistentBroken):
klass = broken.persistentBroken(klass)
try:
obj = klass.__new__(klass)
except TypeError:
# Couldn't create the instance. Maybe there's more
# current data in the object's actual record!
return self._conn.get(oid)
# TODO: should be done by connection
self._cache.new_ghost(oid, obj)
return obj
def getGhost(self, pickle):
unpickler = self._get_unpickler(pickle)
klass = unpickler.load()
if isinstance(klass, tuple):
# Here we have a separate class and args.
# This could be an old record, so the class module ne a named
# refernce
klass, args = klass
if isinstance(klass, tuple):
# Old module_name, class_name tuple
klass = self._get_class(*klass)
if args is None:
args = ()
else:
# Definitely new style direct class reference
args = ()
if issubclass(klass, Broken):
# We got a broken class. We might need to make it
# PersistentBroken
if not issubclass(klass, broken.PersistentBroken):
klass = broken.persistentBroken(klass)
return klass.__new__(klass, *args)
def Broken(self, oid, pair):
broken_klasses_lock.acquire()
try:
if pair in broken_klasses:
klass = broken_klasses[pair]
else:
module, klassname = pair
d = {'BrokenClass': BrokenClass}
exec_("class %s(BrokenClass): ' '; __module__=%r" %
(klassname, module), d)
klass = broken_klasses[pair] = d[klassname]
module = module.split('.')
if len(module) > 2 and module[0] == 'Products':
klass.product_name = module[1]
klass.title = (
'This object from the %s product '
'is broken!' %
klass.product_name)
klass.info = (
'This object\'s class was %s in module %s.' %
(klass.__name__, klass.__module__))
klass = persistentBroken(klass)
LOG.warning(
'Could not import class %r '
'from module %r' % (klass.__name__, klass.__module__))
finally:
broken_klasses_lock.release()
if oid is None:
return klass
i = klass()
i._p_oid = oid
i._p_jar = self
return i
def load_persistent(self, oid, klass):
# Quick instance reference. We know all we need to know
# to create the instance w/o hitting the db, so go for it!
obj = self._cache.get(oid, None)
if obj is not None:
return obj
if isinstance(klass, tuple):
klass = self._get_class(*klass)
if issubclass(klass, Broken):
# We got a broken class. We might need to make it
# PersistentBroken
if not issubclass(klass, broken.PersistentBroken):
klass = broken.persistentBroken(klass)
try:
obj = klass.__new__(klass)
except TypeError:
# Couldn't create the instance. Maybe there's more
# current data in the object's actual record!
return self._conn.get(oid)
# TODO: should be done by connection
obj._p_oid = oid
obj._p_jar = self._conn
# When an object is created, it is put in the UPTODATE
# state. We must explicitly deactivate it to turn it into
# a ghost.
obj._p_changed = None
self._cache[oid] = obj
return obj
def Broken(self, oid, pair):
with lock:
cached = pair in cache
result = Uninstalled_Broken(self, oid, pair)
if not cached:
klass = cache.pop(pair)
assert not issubclass(klass, PersistentBroken), \
"This monkey-patch is not useful anymore"
cache[pair] = persistentBroken(klass)
return result
def Broken(self, oid, pair):
with lock:
cached = pair in cache
result = Uninstalled_Broken(self, oid, pair)
if not cached:
klass = cache.pop(pair)
assert not issubclass(klass, PersistentBroken), \
"This monkey-patch is not useful anymore"
cache[pair] = persistentBroken(klass)
return result
def Broken(self, oid, pair):
lock.acquire()
try:
cached = pair in cache
result = Uninstalled_Broken(self, oid, pair)
if not cached:
klass = cache.pop(pair)
assert not issubclass(klass, PersistentBroken), \
"This monkey-patch is not useful anymore"
cache[pair] = persistentBroken(klass)
finally:
lock.release()
return result
def load_persistent(self, oid, klass):
# Quick instance reference. We know all we need to know
# to create the instance w/o hitting the db, so go for it!
try:
if getattr(STATS, 'stats', None) is None:
init_stats()
stats_cached = STATS.stats['zodb-cached']
stats_uncached = STATS.stats['zodb-uncached']
except:
stats_cached = []
stats_uncached = []
t1 = datetime.now()
obj = self._cache.get(oid, None)
if obj is not None:
stats_cached.append(datetime.now() - t1)
return obj
if isinstance(klass, tuple):
klass = self._get_class(*klass)
if issubclass(klass, Broken):
# We got a broken class. We might need to make it
# PersistentBroken
if not issubclass(klass, broken.PersistentBroken):
klass = broken.persistentBroken(klass)
try:
obj = klass.__new__(klass)
except TypeError:
# Couldn't create the instance. Maybe there's more
# current data in the object's actual record!
stats_uncached.append(datetime.now() - t1)
return self._conn.get(oid)
if has_new_ghost:
self._cache.new_ghost(oid, obj)
else:
obj._p_oid = oid
obj._p_jar = self._conn
obj._p_changed = None
self._cache[oid] = obj
stats_uncached.append(datetime.now() - t1)
return obj