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sqlite pylint fixes

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lakshyacis 2019-09-25 15:16:28 +05:30
parent 54ebbcb7db
commit da5d085a39
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1 changed files with 21 additions and 16 deletions
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37
src/storage/sqlite.py
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@ -1,14 +1,19 @@
from threading import RLock """
src/storage/sqlite.py
=========================
"""
import sqlite3 import sqlite3
import time import time
from threading import RLock
from helper_sql import sqlQuery, SqlBulkExecute, sqlExecute from helper_sql import sqlQuery, SqlBulkExecute, sqlExecute
from storage import InventoryStorage, InventoryItem from storage import InventoryStorage, InventoryItem
class SqliteInventory(InventoryStorage): class SqliteInventory(InventoryStorage): # pylint: disable=too-many-ancestors
"""Inventory using SQLite"""
def __init__(self): def __init__(self):
super(self.__class__, self).__init__() super(SqliteInventory, self).__init__()
# of objects (like msg payloads and pubkey payloads) # of objects (like msg payloads and pubkey payloads)
# Does not include protocol headers (the first 24 bytes of each packet). # Does not include protocol headers (the first 24 bytes of each packet).
self._inventory = {} self._inventory = {}
@ -21,34 +26,34 @@ class SqliteInventory(InventoryStorage):
# (probably sent by a malicious individual) # (probably sent by a malicious individual)
self.lock = RLock() self.lock = RLock()
def __contains__(self, hash): def __contains__(self, hash_):
with self.lock: with self.lock:
if hash in self._objects: if hash_ in self._objects:
return True return True
rows = sqlQuery('SELECT streamnumber FROM inventory WHERE hash=?', sqlite3.Binary(hash)) rows = sqlQuery('SELECT streamnumber FROM inventory WHERE hash=?', sqlite3.Binary(hash_))
if not rows: if not rows:
return False return False
self._objects[hash] = rows[0][0] self._objects[hash_] = rows[0][0]
return True return True
def __getitem__(self, hash): def __getitem__(self, hash_):
with self.lock: with self.lock:
if hash in self._inventory: if hash_ in self._inventory:
return self._inventory[hash] return self._inventory[hash_]
rows = sqlQuery( rows = sqlQuery(
'SELECT objecttype, streamnumber, payload, expirestime, tag FROM inventory WHERE hash=?', 'SELECT objecttype, streamnumber, payload, expirestime, tag FROM inventory WHERE hash=?',
sqlite3.Binary(hash)) sqlite3.Binary(hash_))
if not rows: if not rows:
raise KeyError(hash) raise KeyError(hash_)
return InventoryItem(*rows[0]) return InventoryItem(*rows[0])
def __setitem__(self, hash, value): def __setitem__(self, hash_, value):
with self.lock: with self.lock:
value = InventoryItem(*value) value = InventoryItem(*value)
self._inventory[hash] = value self._inventory[hash_] = value
self._objects[hash] = value.stream self._objects[hash_] = value.stream
def __delitem__(self, hash): def __delitem__(self, hash_):
raise NotImplementedError raise NotImplementedError
def __iter__(self): def __iter__(self):