mirror of
https://github.com/hwchase17/langchain
synced 2024-11-08 07:10:35 +00:00
6da3d92b42
We are pushing out the removal of these to 0.3.
`find . -type f -name "*.py" -exec sed -i ''
's/removal="0\.2/removal="0.3/g' {} +`
84 lines
3.0 KiB
Python
84 lines
3.0 KiB
Python
import logging
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from typing import Callable, List, Optional
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from langchain_core._api.deprecation import deprecated
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from langchain_core.documents import Document
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from langchain_community.document_loaders.base import BaseLoader
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from langchain_community.document_loaders.gcs_file import GCSFileLoader
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from langchain_community.utilities.vertexai import get_client_info
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logger = logging.getLogger(__name__)
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@deprecated(
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since="0.0.32",
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removal="0.3.0",
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alternative_import="langchain_google_community.GCSDirectoryLoader",
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)
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class GCSDirectoryLoader(BaseLoader):
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"""Load from GCS directory."""
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def __init__(
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self,
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project_name: str,
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bucket: str,
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prefix: str = "",
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loader_func: Optional[Callable[[str], BaseLoader]] = None,
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continue_on_failure: bool = False,
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):
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"""Initialize with bucket and key name.
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Args:
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project_name: The ID of the project for the GCS bucket.
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bucket: The name of the GCS bucket.
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prefix: The prefix of the GCS bucket.
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loader_func: A loader function that instantiates a loader based on a
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file_path argument. If nothing is provided, the GCSFileLoader
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would use its default loader.
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continue_on_failure: To use try-except block for each file within the GCS
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directory. If set to `True`, then failure to process a file will not
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cause an error.
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"""
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self.project_name = project_name
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self.bucket = bucket
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self.prefix = prefix
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self._loader_func = loader_func
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self.continue_on_failure = continue_on_failure
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def load(self) -> List[Document]:
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"""Load documents."""
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try:
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from google.cloud import storage
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except ImportError:
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raise ImportError(
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"Could not import google-cloud-storage python package. "
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"Please install it with `pip install google-cloud-storage`."
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)
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client = storage.Client(
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project=self.project_name,
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client_info=get_client_info(module="google-cloud-storage"),
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)
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docs = []
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for blob in client.list_blobs(self.bucket, prefix=self.prefix):
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# we shall just skip directories since GCSFileLoader creates
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# intermediate directories on the fly
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if blob.name.endswith("/"):
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continue
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# Use the try-except block here
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try:
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loader = GCSFileLoader(
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self.project_name,
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self.bucket,
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blob.name,
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loader_func=self._loader_func,
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)
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docs.extend(loader.load())
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except Exception as e:
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if self.continue_on_failure:
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logger.warning(f"Problem processing blob {blob.name}, message: {e}")
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continue
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else:
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raise e
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return docs
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