Commit 1b1a9bcd authored by Julien Muchembled's avatar Julien Muchembled

importer: when mapping oids, repickle without loading any object

The use of ZODB.broken was completely wrong so previous code only worked
if NEO could import all classes used by the application.
parent 764b41c0
This diff is collapsed.
......@@ -15,19 +15,119 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from collections import deque
from cPickle import Pickler, Unpickler
from cStringIO import StringIO
from itertools import islice, izip_longest
import os, time, unittest
import neo, transaction, ZODB
from neo.lib import logging
from neo.lib.util import u64
from neo.storage.database.importer import Repickler
from ..fs2zodb import Inode
from .. import getTempDirectory
from . import NEOCluster, NEOThreadedTest
from ZODB.FileStorage import FileStorage
class Equal:
_recurse = {}
def __hash__(self):
return 1
def __eq__(self, other):
return type(self) is type(other) and self.__dict__ == other.__dict__
def __repr__(self):
return "<%s(%s)>" % (self.__class__.__name__,
", ".join("%s=%r" % k for k in self.__dict__.iteritems()))
class Reduce(Equal, object):
state = None
def __init__(self, *args):
self.args = args
self._l = []
self._d = []
def append(self, item):
self._l.append(item)
def extend(self, item):
self._l.extend(item)
def __setitem__(self, *args):
self._d.append(args)
def __setstate__(self, state):
self.state = state
def __reduce__(self):
r = self.__class__, self.args, self.state, iter(self._l), iter(self._d)
return r[:5 if self._d else
4 if self._l else
3 if self.state is not None else
2]
class Obj(Equal):
state = None
def __getinitargs__(self):
return self.args
def __init__(self, *args):
self.args = args
def __getstate__(self):
return self.state
def __setstate__(self, state):
self.state = state
class NewObj(Obj, object):
def __init__(self):
pass # __getinitargs__ only work with old-style classes
class DummyRepickler(Repickler):
def __init__(self):
Repickler.__init__(self, None)
_changed = True
def __setattr__(self, name, value):
if name != "_changed":
self.__dict__[name] = value
class ImporterTests(NEOThreadedTest):
def testRepickler(self):
r2 = Obj("foo")
r2.__setstate__("bar")
r2 = Reduce(r2)
r3 = Reduce(1, 2)
r3.__setstate__(NewObj())
r4 = Reduce()
r4.args = r2.args
r4.__setstate__("bar")
r4.extend("!!!")
r5 = Reduce()
r5.append("!!!")
r5["foo"] = "bar"
state = {r2: r3, r4: r5}
p = StringIO()
Pickler(p, 1).dump(Obj).dump(state)
p = p.getvalue()
r = DummyRepickler()(p)
load = Unpickler(StringIO(r)).load
self.assertIs(Obj, load())
self.assertDictEqual(state, load())
def test(self):
importer = []
fs_dir = os.path.join(getTempDirectory(), self.id())
......
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