mirror of
https://github.com/hwchase17/langchain
synced 2024-11-02 09:40:22 +00:00
c010ec8b71
- `.get_relevant_documents(query)` -> `.invoke(query)`
- `.get_relevant_documents(query=query)` -> `.invoke(query)`
- `.get_relevant_documents(query, callbacks=callbacks)` ->
`.invoke(query, config={"callbacks": callbacks})`
- `.get_relevant_documents(query, **kwargs)` -> `.invoke(query,
**kwargs)`
---------
Co-authored-by: Erick Friis <erick@langchain.dev>
83 lines
2.5 KiB
Python
83 lines
2.5 KiB
Python
"""Milvus Retriever"""
|
|
import warnings
|
|
from typing import Any, Dict, List, Optional
|
|
|
|
from langchain_core.callbacks import CallbackManagerForRetrieverRun
|
|
from langchain_core.documents import Document
|
|
from langchain_core.embeddings import Embeddings
|
|
from langchain_core.pydantic_v1 import root_validator
|
|
from langchain_core.retrievers import BaseRetriever
|
|
|
|
from langchain_community.vectorstores.milvus import Milvus
|
|
|
|
# TODO: Update to MilvusClient + Hybrid Search when available
|
|
|
|
|
|
class MilvusRetriever(BaseRetriever):
|
|
"""`Milvus API` retriever."""
|
|
|
|
embedding_function: Embeddings
|
|
collection_name: str = "LangChainCollection"
|
|
collection_properties: Optional[Dict[str, Any]] = None
|
|
connection_args: Optional[Dict[str, Any]] = None
|
|
consistency_level: str = "Session"
|
|
search_params: Optional[dict] = None
|
|
|
|
store: Milvus
|
|
retriever: BaseRetriever
|
|
|
|
@root_validator(pre=True)
|
|
def create_retriever(cls, values: Dict) -> Dict:
|
|
"""Create the Milvus store and retriever."""
|
|
values["store"] = Milvus(
|
|
values["embedding_function"],
|
|
values["collection_name"],
|
|
values["collection_properties"],
|
|
values["connection_args"],
|
|
values["consistency_level"],
|
|
)
|
|
values["retriever"] = values["store"].as_retriever(
|
|
search_kwargs={"param": values["search_params"]}
|
|
)
|
|
return values
|
|
|
|
def add_texts(
|
|
self, texts: List[str], metadatas: Optional[List[dict]] = None
|
|
) -> None:
|
|
"""Add text to the Milvus store
|
|
|
|
Args:
|
|
texts (List[str]): The text
|
|
metadatas (List[dict]): Metadata dicts, must line up with existing store
|
|
"""
|
|
self.store.add_texts(texts, metadatas)
|
|
|
|
def _get_relevant_documents(
|
|
self,
|
|
query: str,
|
|
*,
|
|
run_manager: CallbackManagerForRetrieverRun,
|
|
**kwargs: Any,
|
|
) -> List[Document]:
|
|
return self.retriever.invoke(
|
|
query, run_manager=run_manager.get_child(), **kwargs
|
|
)
|
|
|
|
|
|
def MilvusRetreiver(*args: Any, **kwargs: Any) -> MilvusRetriever:
|
|
"""Deprecated MilvusRetreiver. Please use MilvusRetriever ('i' before 'e') instead.
|
|
|
|
Args:
|
|
*args:
|
|
**kwargs:
|
|
|
|
Returns:
|
|
MilvusRetriever
|
|
"""
|
|
warnings.warn(
|
|
"MilvusRetreiver will be deprecated in the future. "
|
|
"Please use MilvusRetriever ('i' before 'e') instead.",
|
|
DeprecationWarning,
|
|
)
|
|
return MilvusRetriever(*args, **kwargs)
|