Source code for vineyard.csi
#! /usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2020-2023 Alibaba Group Holding Limited.
#
# 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.
#
import os
from typing import Any
import vineyard
def _find_vineyard_socket(path):
current_dir = path
while current_dir != "/":
socket_path = os.path.join(current_dir, "vineyard.sock")
if os.path.exists(socket_path):
return socket_path
current_dir = os.path.dirname(current_dir)
return None
[docs]def write(
value: Any,
path: str,
):
"""
Write python value to vineyard.
Notice, the API is only used for CSI driver.
Parameters:
path: str
The path that represents a vineyard object.
.. code:: python
>>> arr = np.arange(8)
>>> vineyard.write(arr)
"""
socket_path = _find_vineyard_socket(path)
if socket_path is None:
raise FileNotFoundError(
f"The given path is not generated by vineyard CSI driver: {path}"
)
client = vineyard.connect(socket_path)
client.put(value, persist=True, name=path)
[docs]def read(
path: str,
):
"""
Read vineyard object from path, and return python value.
Notice, the API is only used for CSI driver.
Parameters:
path: str
The path that represents a vineyard object.
.. code:: python
>>> arr = vineyard.read('/a/b/c/d/f')
>>> arr
array([0, 1, 2, 3, 4, 5, 6, 7])
Returns:
A python object that return by the resolver, by resolving an vineyard object.
"""
socket_path = _find_vineyard_socket(path)
if socket_path is None:
raise FileNotFoundError(
f"The given path is not generated by vineyard CSI driver: {path}"
)
client = vineyard.connect(socket_path)
return client.get(name=path)