mirror of
https://github.com/meta-llama/llama-stack.git
synced 2025-12-12 12:06:04 +00:00
84 lines
2.9 KiB
Python
84 lines
2.9 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 typing import Annotated
|
|
|
|
from pydantic import Field
|
|
|
|
from llama_stack.core.storage.datatypes import (
|
|
PostgresSqlStoreConfig,
|
|
SqliteSqlStoreConfig,
|
|
SqlStoreReference,
|
|
StorageBackendConfig,
|
|
StorageBackendType,
|
|
)
|
|
|
|
from .api import SqlStore
|
|
|
|
sql_store_pip_packages = ["sqlalchemy[asyncio]", "aiosqlite", "asyncpg"]
|
|
|
|
_SQLSTORE_BACKENDS: dict[str, StorageBackendConfig] = {}
|
|
_SQLSTORE_DEFAULT_BACKEND: str | None = None
|
|
|
|
|
|
SqlStoreConfig = Annotated[
|
|
SqliteSqlStoreConfig | PostgresSqlStoreConfig,
|
|
Field(discriminator="type"),
|
|
]
|
|
|
|
|
|
def get_pip_packages(store_config: dict | SqlStoreConfig) -> list[str]:
|
|
"""Get pip packages for SQL store config, handling both dict and object cases."""
|
|
if isinstance(store_config, dict):
|
|
store_type = store_config.get("type")
|
|
if store_type == StorageBackendType.SQL_SQLITE.value:
|
|
return SqliteSqlStoreConfig.pip_packages()
|
|
elif store_type == StorageBackendType.SQL_POSTGRES.value:
|
|
return PostgresSqlStoreConfig.pip_packages()
|
|
else:
|
|
raise ValueError(f"Unknown SQL store type: {store_type}")
|
|
else:
|
|
return store_config.pip_packages()
|
|
|
|
|
|
def sqlstore_impl(reference: SqlStoreReference) -> SqlStore:
|
|
backend_name = reference.backend or _SQLSTORE_DEFAULT_BACKEND
|
|
if not backend_name:
|
|
raise ValueError(
|
|
"SQL store reference did not specify a backend and no default backend is configured. "
|
|
f"Available backends: {sorted(_SQLSTORE_BACKENDS)}"
|
|
)
|
|
|
|
backend_config = _SQLSTORE_BACKENDS.get(backend_name)
|
|
if backend_config.type in [StorageBackendType.SQL_SQLITE, StorageBackendType.SQL_POSTGRES]:
|
|
from .sqlalchemy_sqlstore import SqlAlchemySqlStoreImpl
|
|
|
|
config = backend_config.model_copy()
|
|
config.table_name = reference.table_name
|
|
return SqlAlchemySqlStoreImpl(config)
|
|
else:
|
|
raise ValueError(f"Unknown sqlstore type {backend_config.type}")
|
|
|
|
|
|
def register_sqlstore_backends(backends: dict[str, StorageBackendConfig]) -> None:
|
|
"""Register the set of available SQL store backends for reference resolution."""
|
|
global _SQLSTORE_BACKENDS
|
|
|
|
def _set_default_backend(name: str) -> None:
|
|
global _SQLSTORE_DEFAULT_BACKEND
|
|
if _SQLSTORE_DEFAULT_BACKEND and _SQLSTORE_DEFAULT_BACKEND != name:
|
|
raise ValueError(
|
|
f"Multiple SQL store backends marked as default: '{_SQLSTORE_DEFAULT_BACKEND}' and '{name}'. "
|
|
"Only one backend can be the default."
|
|
)
|
|
_SQLSTORE_DEFAULT_BACKEND = name
|
|
|
|
_SQLSTORE_BACKENDS.clear()
|
|
for name, cfg in backends.items():
|
|
if cfg.default:
|
|
_set_default_backend(name)
|
|
|
|
_SQLSTORE_BACKENDS[name] = cfg
|