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# -------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See License.txt in the project root for
# license information.
# --------------------------------------------------------------------------
from datetime import datetime, timedelta
from typing import Any, cast, Dict, Optional, Union
from ._generated._serialization import Serializer
_ERROR_TOO_MANY_FILE_PERMISSIONS = 'file_permission and file_permission_key should not be set at the same time'
_FILE_PERMISSION_TOO_LONG = 'Size of file_permission is too large. file_permission should be <=8KB, else' \
'please use file_permission_key'
def _get_file_permission(file_permission, file_permission_key, default_permission):
# if file_permission and file_permission_key are both empty, then use the default_permission
# value as file permission, file_permission size should be <= 8KB, else file permission_key should be used
if file_permission and len(str(file_permission).encode('utf-8')) > 8 * 1024:
raise ValueError(_FILE_PERMISSION_TOO_LONG)
if not file_permission:
if not file_permission_key:
return default_permission
return None
if not file_permission_key:
return file_permission
raise ValueError(_ERROR_TOO_MANY_FILE_PERMISSIONS)
def _parse_datetime_from_str(string_datetime):
if not string_datetime:
return None
dt, _, us = string_datetime.partition(".")
dt = datetime.strptime(dt, "%Y-%m-%dT%H:%M:%S")
us = int(us[:-2]) # microseconds
datetime_obj = dt + timedelta(microseconds=us)
return datetime_obj
def _datetime_to_str(datetime_obj):
if not datetime_obj:
return None
if isinstance(datetime_obj, str):
return datetime_obj
return Serializer.serialize_iso(datetime_obj)[:-1].ljust(27, "0") + "Z"
def _parse_snapshot(
snapshot: Optional[Union[str, Dict[str, Any]]] = None,
path_snapshot: Optional[str] = None
) -> Optional[str]:
if hasattr(snapshot, 'snapshot'):
return snapshot.snapshot # type: ignore
if isinstance(snapshot, Dict):
return cast(str, snapshot['snapshot'])
return snapshot or path_snapshot
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