71 lines
1.8 KiB
Python
71 lines
1.8 KiB
Python
# standard imports
|
|
import logging
|
|
import re
|
|
import datetime
|
|
|
|
logg = logging.getLogger(__name__)
|
|
|
|
|
|
def to_key(t, n, k):
|
|
return '{}_{}_{}'.format(t, n, k)
|
|
|
|
|
|
def from_key(k):
|
|
(ts_str, seq_str, tx_hash) = k.split('_')
|
|
return (float(ts_str), int(seq_str), tx_hash, )
|
|
|
|
|
|
re_u = r'^[^_][_A-Z]+$'
|
|
class Store:
|
|
|
|
def __init__(self, state_store, index_store, counter, cache=None):
|
|
self.cache = cache
|
|
self.state_store = state_store
|
|
self.index_store = index_store
|
|
self.counter = counter
|
|
for s in dir(self.state_store):
|
|
if not re.match(re_u, s):
|
|
continue
|
|
v = self.state_store.from_name(s)
|
|
setattr(self, s, v)
|
|
for v in ['state', 'change', 'set', 'unset']:
|
|
setattr(self, v, getattr(self.state_store, v))
|
|
|
|
|
|
def put(self, k, v):
|
|
n = self.counter.next()
|
|
t = datetime.datetime.now().timestamp()
|
|
s = to_key(t, n, k)
|
|
self.state_store.put(s, v)
|
|
self.index_store.put(k, s)
|
|
if self.cache != None:
|
|
self.cache.put_serialized(v)
|
|
|
|
|
|
def get(self, k):
|
|
s = self.index_store.get(k)
|
|
v = self.state_store.get(s)
|
|
return (s, v,)
|
|
|
|
|
|
def list(self, state=0, limit=4096, strict=False):
|
|
hashes = []
|
|
i = 0
|
|
|
|
hashes_state = self.state_store.list(state)
|
|
if strict:
|
|
for k in hashes_state:
|
|
item_state = self.state_store.state(k)
|
|
if item_state & state != item_state:
|
|
continue
|
|
hashes.append(k)
|
|
else:
|
|
hashes = hashes_state
|
|
|
|
hashes.sort()
|
|
hashes_out = []
|
|
for h in hashes:
|
|
pair = from_key(h)
|
|
hashes_out.append(pair[1])
|
|
return hashes_out
|