Source code for swh.objstorage.exc

# Copyright (C) 2015-2024  The Software Heritage developers
# See the AUTHORS file at the top-level directory of this distribution
# License: GNU General Public License version 3, or any later version
# See top-level LICENSE file for more information


def _exc_message(base: str, args):
    message = base
    if args:
        message += f": {args[0]}"
    return message




class Error(Exception):
    def __str__(self):
        return _exc_message("Object storage error on object", self.args)





class ObjNotFoundError(Error):
    def __str__(self):
        return _exc_message("Object not found", self.args)





class ObjCorruptedError(Error):
    def __str__(self) -> str:
        return _exc_message("Object corrupted", self.args)





class ObjStorageAPIError(Exception):
    """Specific internal exception of an object storage (mainly connection)."""

    def __str__(self):
        return _exc_message(
            "An unexpected error occurred in the api backend", self.args
        )





class ReadOnlyObjStorage(Error):
    def __init__(self, method, *args):
        super().__init__(*args)
        self.method = method

    def __str__(self):
        return f"This object storage is Read-Only: cannot use {self.method}"





class NonIterableObjStorage(Error):
    def __init__(self, method, *args):
        super().__init__(*args)
        self.method = method

    def __str__(self):
        return f"This object storage is not iterable: cannot use {self.method}"