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bazarr/custom_libs/subzero/intent.py

103 lines
3.0 KiB

6 years ago
# coding=utf-8
5 years ago
from __future__ import absolute_import
6 years ago
import datetime
import threading
lock = threading.Lock()
class TempIntent(object):
timeout = 1000 # milliseconds
store = None
def __init__(self, timeout=1000, store=None):
self.timeout = timeout
if store is None:
raise NotImplementedError
self.store = store
def get(self, kind, *keys):
with lock:
# iter all requested keys
for key in keys:
hit = False
# skip key if invalid
if not key:
continue
# valid kind?
if kind in self.store:
now = datetime.datetime.now()
key = str(key)
# iter all known kinds (previously created)
for known_key in self.store[kind].keys():
# may need locking, for now just play it safe
data = self.store[kind].get(known_key, {})
ends = data.get("timeout")
if not ends:
continue
timed_out = False
if now > ends:
timed_out = True
# key and kind in storage, and not timed out = hit
if known_key == key and not timed_out:
hit = True
if timed_out:
try:
del self.store[kind][key]
except:
continue
if hit:
return True
return False
def resolve(self, kind, key):
with lock:
if kind in self.store and key in self.store[kind]:
del self.store[kind][key]
return True
return False
def set(self, kind, key, data=None, timeout=None):
with lock:
if kind not in self.store:
self.store[kind] = {}
key = str(key)
self.store[kind][key] = {
"data": data,
"timeout": datetime.datetime.now() + datetime.timedelta(milliseconds=timeout or self.timeout)
}
def has(self, kind, key):
with lock:
if kind not in self.store:
return False
return key in self.store[kind]
def cleanup(self):
now = datetime.datetime.now()
clear_all = False
for kind, info in self.store.items():
for key, intent_data in info.items():
# legacy intent data, clear everything
if not isinstance(intent_data, dict):
clear_all = True
continue
if now > intent_data["timeout"]:
del self.store[kind][key]
if clear_all:
self.store.clear()
self.store.save()