import logging
+try:
+ import cPickle
+ pickle = cPickle
+except ImportError:
+ import pickle
+
+import constants
import util.coroutines as coroutines
import util.misc as misc_utils
import util.go_utils as gobject_utils
_RESPONSE_GOOD = 0
_RESPONSE_BLOCKED = 3
+ OLDEST_COMPATIBLE_FORMAT_VERSION = misc_utils.parse_version("0.8.0")
+
def __init__(self, backend, asyncPool):
self._backend = backend
self._numbers = {}
self.updateSignalHandler = coroutines.CoTee()
+ def load(self, path):
+ _moduleLogger.debug("Loading cache")
+ assert not self._numbers
+ try:
+ with open(path, "rb") as f:
+ fileVersion, fileBuild, contacts = pickle.load(f)
+ except (pickle.PickleError, IOError, EOFError, ValueError):
+ _moduleLogger.exception("While loading")
+ return
+
+ if contacts and misc_utils.compare_versions(
+ self.OLDEST_COMPATIBLE_FORMAT_VERSION,
+ misc_utils.parse_version(fileVersion),
+ ) <= 0:
+ _moduleLogger.info("Loaded cache")
+ self._numbers = contacts
+ self._loadedFromCache = True
+ else:
+ _moduleLogger.debug(
+ "Skipping cache due to version mismatch (%s-%s)" % (
+ fileVersion, fileBuild
+ )
+ )
+
+ def save(self, path):
+ _moduleLogger.info("Saving cache")
+ if not self._numbers:
+ _moduleLogger.info("Odd, no conversations to cache. Did we never load the cache?")
+ return
+
+ try:
+ dataToDump = (constants.__version__, constants.__build__, self._numbers)
+ with open(path, "wb") as f:
+ pickle.dump(dataToDump, f, pickle.HIGHEST_PROTOCOL)
+ except (pickle.PickleError, IOError):
+ _moduleLogger.exception("While saving for %s" % self._name)
+ _moduleLogger.info("Cache saved")
+
def update(self, force=False):
if not force and self._numbers:
return