llama-stack-mirror/llama_stack/distribution/store/registry.py
2024-11-04 09:37:23 -08:00

51 lines
1.6 KiB
Python

import json
from typing import Protocol
from docs.openapi_generator.strong_typing.deserializer import create_deserializer
from docs.openapi_generator.strong_typing.serialization import object_to_json
from llama_stack.distribution.datatypes import RoutableObjectWithProvider
from llama_stack.providers.utils.kvstore import KVStore
class Registry(Protocol):
async def get(self, identifier: str) -> [RoutableObjectWithProvider]: ...
async def register(self, obj: RoutableObjectWithProvider) -> None: ...
KEY_FORMAT = "distributions:registry:{}"
DESERIALIZER = create_deserializer(RoutableObjectWithProvider)
class DiskRegistry(Registry):
def __init__(self, kvstore: KVStore):
self.kvstore = kvstore
async def get(self, identifier: str) -> [RoutableObjectWithProvider]:
# Get JSON string from kvstore
json_str = await self.kvstore.get(KEY_FORMAT.format(identifier))
if not json_str:
return []
# Parse JSON string into list of objects
objects_data = json.loads(json_str)
return [DESERIALIZER.parse(obj_str) for obj_str in objects_data]
async def register(self, obj: RoutableObjectWithProvider) -> None:
# Get existing objects for this identifier
existing_objects = await self.get(obj.identifier)
# Add new object to list
existing_objects.append(obj)
# Convert all objects to JSON strings and store as JSON array
objects_json = [
object_to_json(existing_object) for existing_object in existing_objects
]
await self.kvstore.set(
KEY_FORMAT.format(obj.identifier), json.dumps(objects_json)
)