mirror of
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58 lines
1.7 KiB
Python
58 lines
1.7 KiB
Python
import asyncio
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import os
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from dataclasses import dataclass
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from typing import Any, Union
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from lightrag.utils import (
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logger,
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load_json,
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write_json,
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)
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from lightrag.base import (
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BaseKVStorage,
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)
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@dataclass
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class JsonKVStorage(BaseKVStorage):
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def __post_init__(self):
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working_dir = self.global_config["working_dir"]
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self._file_name = os.path.join(working_dir, f"kv_store_{self.namespace}.json")
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self._data: dict[str, Any] = load_json(self._file_name) or {}
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self._lock = asyncio.Lock()
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logger.info(f"Load KV {self.namespace} with {len(self._data)} data")
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async def all_keys(self) -> list[str]:
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return list(self._data.keys())
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async def index_done_callback(self):
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write_json(self._data, self._file_name)
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async def get_by_id(self, id: str) -> Union[dict[str, Any], None]:
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return self._data.get(id, None)
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async def get_by_ids(self, ids: list[str]) -> list[Union[dict[str, Any], None]]:
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return [
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(
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{k: v for k, v in self._data[id].items()}
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if self._data.get(id, None)
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else None
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)
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for id in ids
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]
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async def filter_keys(self, data: list[str]) -> set[str]:
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return set([s for s in data if s not in self._data])
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async def upsert(self, data: dict[str, dict[str, Any]]) -> None:
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left_data = {k: v for k, v in data.items() if k not in self._data}
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self._data.update(left_data)
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async def drop(self) -> None:
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self._data = {}
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async def get_by_status_and_ids(
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self, status: str
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) -> Union[list[dict[str, Any]], None]:
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result = [v for _, v in self._data.items() if v["status"] == status]
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return result if result else None
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