kotaemon/knowledgehub/storages/vectorstores/in_memory.py
Duc Nguyen (john) 37c744b616 Add file-based document store and vector store (#96)
* Modify docstore and vectorstore objects to be reconstructable
* Simplify the file docstore
* Use the simple file docstore and vector store in MVP
2023-12-04 17:46:00 +07:00

63 lines
1.8 KiB
Python

"""Simple vector store index."""
from typing import Any, Optional, Type
import fsspec
from llama_index.vector_stores import SimpleVectorStore as LISimpleVectorStore
from llama_index.vector_stores.simple import SimpleVectorStoreData
from .base import LlamaIndexVectorStore
class InMemoryVectorStore(LlamaIndexVectorStore):
_li_class: Type[LISimpleVectorStore] = LISimpleVectorStore
store_text: bool = False
def __init__(
self,
data: Optional[SimpleVectorStoreData] = None,
fs: Optional[fsspec.AbstractFileSystem] = None,
**kwargs: Any,
) -> None:
"""Initialize params."""
self._data = data or SimpleVectorStoreData()
self._fs = fs or fsspec.filesystem("file")
super().__init__(
data=data,
fs=fs,
**kwargs,
)
def save(
self,
save_path: str,
fs: Optional[fsspec.AbstractFileSystem] = None,
**kwargs,
):
"""save a simpleVectorStore to a dictionary.
Args:
save_path: Path of saving vector to disk.
fs: An abstract super-class for pythonic file-systems
"""
self._client.persist(persist_path=save_path, fs=fs)
def load(self, load_path: str, fs: Optional[fsspec.AbstractFileSystem] = None):
"""Create a SimpleKVStore from a load directory.
Args:
load_path: Path of loading vector.
fs: An abstract super-class for pythonic file-systems
"""
self._client = self._client.from_persist_path(persist_path=load_path, fs=fs)
def __persist_flow__(self):
d = self._data.to_dict()
d["__type__"] = f"{self._data.__module__}.{self._data.__class__.__qualname__}"
return {
"data": d,
# "fs": self._fs,
}