llama-stack/llama_stack/providers/utils/kvstore/sqlite/sqlite.py
Yuan Tang 34ab7a3b6c
Fix precommit check after moving to ruff (#927)
Lint check in main branch is failing. This fixes the lint check after we
moved to ruff in https://github.com/meta-llama/llama-stack/pull/921. We
need to move to a `ruff.toml` file as well as fixing and ignoring some
additional checks.

Signed-off-by: Yuan Tang <terrytangyuan@gmail.com>
2025-02-02 06:46:45 -08:00

69 lines
2.4 KiB
Python

# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
import os
from datetime import datetime
from typing import List, Optional
import aiosqlite
from ..api import KVStore
from ..config import SqliteKVStoreConfig
class SqliteKVStoreImpl(KVStore):
def __init__(self, config: SqliteKVStoreConfig):
self.db_path = config.db_path
self.table_name = "kvstore"
async def initialize(self):
os.makedirs(os.path.dirname(self.db_path), exist_ok=True)
async with aiosqlite.connect(self.db_path) as db:
await db.execute(
f"""
CREATE TABLE IF NOT EXISTS {self.table_name} (
key TEXT PRIMARY KEY,
value TEXT,
expiration TIMESTAMP
)
"""
)
await db.commit()
async def set(self, key: str, value: str, expiration: Optional[datetime] = None) -> None:
async with aiosqlite.connect(self.db_path) as db:
await db.execute(
f"INSERT OR REPLACE INTO {self.table_name} (key, value, expiration) VALUES (?, ?, ?)",
(key, value, expiration),
)
await db.commit()
async def get(self, key: str) -> Optional[str]:
async with aiosqlite.connect(self.db_path) as db:
async with db.execute(f"SELECT value, expiration FROM {self.table_name} WHERE key = ?", (key,)) as cursor:
row = await cursor.fetchone()
if row is None:
return None
value, expiration = row
return value
async def delete(self, key: str) -> None:
async with aiosqlite.connect(self.db_path) as db:
await db.execute(f"DELETE FROM {self.table_name} WHERE key = ?", (key,))
await db.commit()
async def range(self, start_key: str, end_key: str) -> List[str]:
async with aiosqlite.connect(self.db_path) as db:
async with db.execute(
f"SELECT key, value, expiration FROM {self.table_name} WHERE key >= ? AND key <= ?",
(start_key, end_key),
) as cursor:
result = []
async for row in cursor:
_, value, _ = row
result.append(value)
return result