llama-stack-mirror/llama_stack/providers/utils/kvstore/kvstore.py
ehhuang 446893f791
feat: add deps dynamically based on metastore config (#2405)
# What does this PR do?


## Test Plan
changed metastore in one of the templates, rerun distro gen, observe
change in build.yaml
2025-06-05 14:07:25 -07:00

68 lines
2.2 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.
from .api import KVStore
from .config import KVStoreConfig, KVStoreType
def kvstore_dependencies():
"""
Returns all possible kvstore dependencies for registry/provider specifications.
NOTE: For specific kvstore implementations, use config.pip_packages instead.
This function returns the union of all dependencies for cases where the specific
kvstore type is not known at declaration time (e.g., provider registries).
"""
return ["aiosqlite", "psycopg2-binary", "redis", "pymongo"]
class InmemoryKVStoreImpl(KVStore):
def __init__(self):
self._store = {}
async def initialize(self) -> None:
pass
async def get(self, key: str) -> str | None:
return self._store.get(key)
async def set(self, key: str, value: str) -> None:
self._store[key] = value
async def values_in_range(self, start_key: str, end_key: str) -> list[str]:
return [self._store[key] for key in self._store.keys() if key >= start_key and key < end_key]
async def keys_in_range(self, start_key: str, end_key: str) -> list[str]:
"""Get all keys in the given range."""
return [key for key in self._store.keys() if key >= start_key and key < end_key]
async def delete(self, key: str) -> None:
del self._store[key]
async def kvstore_impl(config: KVStoreConfig) -> KVStore:
if config.type == KVStoreType.redis.value:
from .redis import RedisKVStoreImpl
impl = RedisKVStoreImpl(config)
elif config.type == KVStoreType.sqlite.value:
from .sqlite import SqliteKVStoreImpl
impl = SqliteKVStoreImpl(config)
elif config.type == KVStoreType.postgres.value:
from .postgres import PostgresKVStoreImpl
impl = PostgresKVStoreImpl(config)
elif config.type == KVStoreType.mongodb.value:
from .mongodb import MongoDBKVStoreImpl
impl = MongoDBKVStoreImpl(config)
else:
raise ValueError(f"Unknown kvstore type {config.type}")
await impl.initialize()
return impl