forked from Archives/langchain
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
48 lines
1.6 KiB
Python
48 lines
1.6 KiB
Python
import json
|
|
from pathlib import Path
|
|
from typing import Iterable, List, Union
|
|
|
|
from langchain.docstore.document import Document
|
|
from langchain.document_loaders.base import BaseLoader
|
|
|
|
|
|
class TomlLoader(BaseLoader):
|
|
"""
|
|
A TOML document loader that inherits from the BaseLoader class.
|
|
|
|
This class can be initialized with either a single source file or a source
|
|
directory containing TOML files.
|
|
"""
|
|
|
|
def __init__(self, source: Union[str, Path]):
|
|
"""Initialize the TomlLoader with a source file or directory."""
|
|
self.source = Path(source)
|
|
|
|
def load(self) -> List[Document]:
|
|
"""Load and return all documents."""
|
|
return list(self.lazy_load())
|
|
|
|
def lazy_load(self) -> Iterable[Document]:
|
|
"""Lazily load the TOML documents from the source file or directory."""
|
|
import tomli
|
|
|
|
if self.source.is_file() and self.source.suffix == ".toml":
|
|
files = [self.source]
|
|
elif self.source.is_dir():
|
|
files = list(self.source.glob("**/*.toml"))
|
|
else:
|
|
raise ValueError("Invalid source path or file type")
|
|
|
|
for file_path in files:
|
|
with file_path.open("r", encoding="utf-8") as file:
|
|
content = file.read()
|
|
try:
|
|
data = tomli.loads(content)
|
|
doc = Document(
|
|
page_content=json.dumps(data),
|
|
metadata={"source": str(file_path)},
|
|
)
|
|
yield doc
|
|
except tomli.TOMLDecodeError as e:
|
|
print(f"Error parsing TOML file {file_path}: {e}")
|