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Copy pathtagging.py
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52 lines (42 loc) · 1.64 KB
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# -*- coding: utf-8 -*-
# MinIO Python Library for Amazon S3 Compatible Cloud Storage, (C)
# 2020 MinIO, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Tagging for bucket and object."""
from __future__ import absolute_import, annotations
from dataclasses import dataclass
from typing import Optional, Type, TypeVar, cast
from xml.etree import ElementTree as ET
from .commonconfig import Tags
from .xml import Element, SubElement, find
A = TypeVar("A", bound="Tagging")
@dataclass(frozen=True)
class Tagging:
"""Tagging for buckets and objects."""
tags: Optional[Tags]
@classmethod
def fromxml(cls: Type[A], element: ET.Element) -> A:
"""Create new object with values from XML element."""
element = cast(ET.Element, find(element, "TagSet", True))
tags = (
None if find(element, "Tag") is None
else Tags.fromxml(element)
)
return cls(tags=tags)
def toxml(self, element: Optional[ET.Element]) -> ET.Element:
"""Convert to XML."""
element = Element("Tagging")
if self.tags:
self.tags.toxml(SubElement(element, "TagSet"))
return element