llama-stack/llama_stack/providers/utils/kvstore/mongodb/mongodb.py
Ihar Hrachyshka 9e6561a1ec
chore: enable pyupgrade fixes (#1806)
# What does this PR do?

The goal of this PR is code base modernization.

Schema reflection code needed a minor adjustment to handle UnionTypes
and collections.abc.AsyncIterator. (Both are preferred for latest Python
releases.)

Note to reviewers: almost all changes here are automatically generated
by pyupgrade. Some additional unused imports were cleaned up. The only
change worth of note can be found under `docs/openapi_generator` and
`llama_stack/strong_typing/schema.py` where reflection code was updated
to deal with "newer" types.

Signed-off-by: Ihar Hrachyshka <ihar.hrachyshka@gmail.com>
2025-05-01 14:23:50 -07:00

70 lines
2.5 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 logging
from datetime import datetime
from pymongo import AsyncMongoClient
from llama_stack.providers.utils.kvstore import KVStore
from ..config import MongoDBKVStoreConfig
log = logging.getLogger(__name__)
class MongoDBKVStoreImpl(KVStore):
def __init__(self, config: MongoDBKVStoreConfig):
self.config = config
self.conn = None
self.collection = None
async def initialize(self) -> None:
try:
conn_creds = {
"host": self.config.host,
"port": self.config.port,
"username": self.config.user,
"password": self.config.password,
}
conn_creds = {k: v for k, v in conn_creds.items() if v is not None}
self.conn = AsyncMongoClient(**conn_creds)
self.collection = self.conn[self.config.db][self.config.collection_name]
except Exception as e:
log.exception("Could not connect to MongoDB database server")
raise RuntimeError("Could not connect to MongoDB database server") from e
def _namespaced_key(self, key: str) -> str:
if not self.config.namespace:
return key
return f"{self.config.namespace}:{key}"
async def set(self, key: str, value: str, expiration: datetime | None = None) -> None:
key = self._namespaced_key(key)
update_query = {"$set": {"value": value, "expiration": expiration}}
await self.collection.update_one({"key": key}, update_query, upsert=True)
async def get(self, key: str) -> str | None:
key = self._namespaced_key(key)
query = {"key": key}
result = await self.collection.find_one(query, {"value": 1, "_id": 0})
return result["value"] if result else None
async def delete(self, key: str) -> None:
key = self._namespaced_key(key)
await self.collection.delete_one({"key": key})
async def range(self, start_key: str, end_key: str) -> list[str]:
start_key = self._namespaced_key(start_key)
end_key = self._namespaced_key(end_key)
query = {
"key": {"$gte": start_key, "$lt": end_key},
}
cursor = self.collection.find(query, {"value": 1, "_id": 0}).sort("key", 1)
result = []
async for doc in cursor:
result.append(doc["value"])
return result