67 lines
2.2 KiB
Python
67 lines
2.2 KiB
Python
from pathlib import Path
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from typing import Any, List, Type, Union
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from llama_index import SimpleDirectoryReader, download_loader
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from llama_index.readers.base import BaseReader
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from kotaemon.base import BaseComponent, Document
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class AutoReader(BaseComponent):
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"""General auto reader for a variety of files. (based on llama-hub)"""
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def __init__(self, reader_type: Union[str, Type[BaseReader]]) -> None:
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"""Init reader using string identifier or class name from llama-hub"""
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if isinstance(reader_type, str):
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self._reader = download_loader(reader_type)()
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else:
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self._reader = reader_type()
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super().__init__()
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def load_data(self, file: Union[Path, str], **kwargs: Any) -> List[Document]:
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documents = self._reader.load_data(file=file, **kwargs)
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# convert Document to new base class from kotaemon
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converted_documents = [Document.from_dict(doc.to_dict()) for doc in documents]
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return converted_documents
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def run(self, file: Union[Path, str], **kwargs: Any) -> List[Document]:
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return self.load_data(file=file, **kwargs)
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class LIBaseReader(BaseComponent):
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_reader_class: Type[BaseReader]
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def __init__(self, *args, **kwargs):
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if self._reader_class is None:
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raise AttributeError(
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"Require `_reader_class` to set a BaseReader class from LlamarIndex"
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)
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self._reader = self._reader_class(*args, **kwargs)
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super().__init__()
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def __setattr__(self, name: str, value: Any) -> None:
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if name.startswith("_"):
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return super().__setattr__(name, value)
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return setattr(self._reader, name, value)
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def __getattr__(self, name: str) -> Any:
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return getattr(self._reader, name)
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def load_data(self, *args, **kwargs: Any) -> List[Document]:
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documents = self._reader.load_data(*args, **kwargs)
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# convert Document to new base class from kotaemon
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converted_documents = [Document.from_dict(doc.to_dict()) for doc in documents]
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return converted_documents
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def run(self, *args, **kwargs: Any) -> List[Document]:
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return self.load_data(*args, **kwargs)
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class DirectoryReader(LIBaseReader):
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_reader_class = SimpleDirectoryReader
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