def get_formatted_cache_stats(self):
"""
returns a string the shows # of objects retrieved from cache and # of objects loaded from ZODB
since the last time this function was called.
set VERBOSE_CACHE_LOGGING=True if you want to see the actual objects (tons of output!)
"""
from qon.util import get_oid
# create the verbose version while tallying up data for the summary version
verbose_accessed = ''
verbose_added = ''
accessed_tally = {}
added_tally = {}
self.accessed_oids.sort(lambda x, y: x[0]-y[0])
self.added_oids.sort(lambda x, y: x[0]-y[0])
for size, oid in self.accessed_oids:
if qon.local.VERBOSE_CACHE_LOGGING:
verbose_accessed += "\n --(%d bytes) %s" % (size, str(get_oid(oid)))
self._tally(accessed_tally, type(get_oid(oid)), size)
for size, oid in self.added_oids:
if qon.local.VERBOSE_CACHE_LOGGING:
verbose_added += "\n --(%d bytes) %s" % (size, str(get_oid(oid)))
self._tally(added_tally, type(get_oid(oid)), size)
if qon.local.VERBOSE_CACHE_LOGGING:
verbose_combined = '\n%d OBJECTS RETRIEVED FROM CACHE:\n%s\n\n%d OBJECTS LOADED FROM ZODB:\n%s\n====================================================\n' \
% (len(self.accessed_oids), verbose_accessed, len(self.added_oids), verbose_added)
# ok, now let's finish off the summary version
accessed = ''
added = ''
accessed_keys = accessed_tally.keys()
accessed_keys.sort(lambda x, y: accessed_tally[x][1]-accessed_tally[y][1])
added_keys = added_tally.keys()
added_keys.sort(lambda x, y: added_tally[x][1]-added_tally[y][1])
for t in accessed_keys:
accessed += "\n --(%d bytes) (%d) %s" % (accessed_tally[t][1], accessed_tally[t][0], t)
for t in added_keys:
added += "\n --(%d bytes) (%d) %s" % (added_tally[t][1], added_tally[t][0], t)
combined = '\n%d OBJECTS RETRIEVED FROM CACHE:\n%s\n\n%d OBJECTS LOADED FROM ZODB:\n%s\n====================================================\n' \
% (len(self.accessed_oids), accessed, len(self.added_oids), added)
# reset oid lists to prepare for next call
self.clear_oid_lists()
if qon.local.VERBOSE_CACHE_LOGGING:
return verbose_combined
else:
return combined
def get_pageview_counts_per_user(self):
"""return a list of (user, counts)"""
return_list = []
for user_oid, (dt, count) in self.__user_access.iteritems():
if count > 0:
return_list.append((get_oid(pack_oid(user_oid)), count))
return return_list
def index_all_tagged ():
tidb = get_tagged_item_database()
i = 1
for oid in tidb:
item = get_oid(oid)
index_tagged_item(item)
_commit(i)
i += 1
_commit(0)
def _get_items(self, oid_list):
"""Return a list of valid watchable items from oid_list"""
items = []
for k in oid_list:
try:
obj = get_oid(k)
obj_name = obj.watchable_name()
except:
self._lost_oid(k)
else:
items.append(obj)
return items
def get_hits(self, time_delta, prune=1):
"""Returns unsorted list of tuples of hits not older than time_delta.
Tuples returned: (datetime, obj)...
If prune is set, deletes items older than time_delta.
"""
cutoff = datetime.utcnow() - time_delta
l = []
for k, v in self.root.items():
if v > cutoff:
l.append((v, get_oid(k)))
else:
if prune:
del self.root[k]
return l
def most_watched(self):
"""Return list of most-watched objects: [(count, object), ...]"""
if self.__most_watched:
return self.__most_watched
from qon.util import get_oid
# collect all watched objects
oids = {}
for user_id, user in get_user_database().root.iteritems():
for oid in user.get_watch_list().watched_items_oids():
oids[oid] = oids.get(oid, 0) + 1
get_connection().cacheGC()
# sort them
bycount = []
for oid, count in oids.iteritems():
bycount.append((count, oid))
del oids
bycount.sort()
bycount = bycount[-self._watched_items_count:]
bycount.reverse()
# get objects
watched = []
for count, oid in bycount:
try:
watched.append((count, get_oid(oid)))
except KeyError:
# invalid oid
pass
# save and return
self.__most_watched = watched
return self.__most_watched
