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56 lines
1.6 KiB
Python
56 lines
1.6 KiB
Python
# Copyright (c) Meta Platforms, Inc. and affiliates.
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# All rights reserved.
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#
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# This source code is licensed under the terms described in the LICENSE file in
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# the root directory of this source tree.
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import json
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from typing import Protocol
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import pydantic
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from llama_stack.distribution.datatypes import RoutableObjectWithProvider
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from llama_stack.providers.utils.kvstore import KVStore
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class Registry(Protocol):
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async def get(self, identifier: str) -> [RoutableObjectWithProvider]: ...
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async def register(self, obj: RoutableObjectWithProvider) -> None: ...
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KEY_FORMAT = "distributions:registry:{}"
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class DiskRegistry(Registry):
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def __init__(self, kvstore: KVStore):
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self.kvstore = kvstore
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async def get(self, identifier: str) -> [RoutableObjectWithProvider]:
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# Get JSON string from kvstore
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json_str = await self.kvstore.get(KEY_FORMAT.format(identifier))
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if not json_str:
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return []
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# Parse JSON string into list of objects
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objects_data = json.loads(json_str)
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return [
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pydantic.parse_obj_as(
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RoutableObjectWithProvider,
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json.loads(obj_str),
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)
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for obj_str in objects_data
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]
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# TODO: make it thread safe using CAS
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async def register(self, obj: RoutableObjectWithProvider) -> None:
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existing_objects = await self.get(obj.identifier)
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existing_objects.append(obj)
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objects_json = [obj.model_dump_json() for existing_object in existing_objects]
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await self.kvstore.set(
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KEY_FORMAT.format(obj.identifier), json.dumps(objects_json)
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)
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