Source code for ads.common.object_storage_details
#!/usr/bin/env python
# -*- coding: utf-8 -*--
# Copyright (c) 2021, 2022 Oracle and/or its affiliates.
# Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl/
import json
import os
import re
from dataclasses import dataclass
from typing import Dict
from urllib.parse import urlparse
from ads.common import auth as authutil
from ads.common import oci_client
[docs]class InvalidObjectStoragePath(Exception): # pragma: no cover
"""Invalid Object Storage Path."""
pass
[docs]@dataclass
class ObjectStorageDetails:
"""Class that represents the Object Storage bucket URI details.
Attributes
----------
bucket: str
The Object Storage bucket name.
namespace: (str, optional). Defaults to empty string.
The Object Storage namespace. Will be extracted automatically if not provided.
filepath: (str, optional). Defaults to empty string.
The path to the object.
auth: (Dict, optional). Defaults to None.
ADS auth dictionary for OCI authentication.
This can be generated by calling ads.common.auth.api_keys() or ads.common.auth.resource_principal()
If this is None, ads.common.default_signer() will be used.
"""
bucket: str
namespace: str = ""
filepath: str = ""
auth: Dict = None
def __post_init__(self):
if not self.auth:
self.auth = authutil.default_signer()
# Extract OS namespace if not provided.
if not self.namespace:
os_client = oci_client.OCIClientFactory(**self.auth).object_storage
self.namespace = os_client.get_namespace().data
def __repr__(self):
return self.path
@property
def path(self):
"""Full object storage path of this file."""
return os.path.join(
"oci://",
self.bucket + "@" + self.namespace,
self.filepath.lstrip("/") if self.filepath else "",
)
[docs] @classmethod
def from_path(cls, env_path: str) -> "ObjectStorageDetails":
"""Construct an ObjectStorageDetails instance from conda pack path.
Parameters
----------
env_path: (str)
codna pack object storage path.
Raises
------
Exception: OCI conda url path not properly configured.
Returns
-------
ObjectStorageDetails
An ObjectStorageDetails instance.
"""
try:
url_parse = urlparse(env_path)
bucket_name = url_parse.username
namespace = url_parse.hostname
object_name = url_parse.path.strip("/")
return cls(bucket=bucket_name, namespace=namespace, filepath=object_name)
except:
raise Exception(
"OCI path is not properly configured. "
"It should follow the pattern `oci://<bucket-name>@<namespace>/object_path`."
)
[docs] def to_tuple(self):
"""Returns the values of the fields of ObjectStorageDetails class."""
return self.bucket, self.namespace, self.filepath
[docs] def fetch_metadata_of_object(self) -> Dict:
"""Fetches the manifest metadata from the object storage of a conda pack.
Returns
-------
Dict
The metadata in dictionary format.
"""
os_client = oci_client.OCIClientFactory(**self.auth).object_storage
res = os_client.get_object(self.namespace, self.bucket, self.filepath)
metadata = res.data.headers["opc-meta-manifest"]
metadata_json = json.loads(metadata)
return metadata_json
[docs] @staticmethod
def is_valid_uri(uri: str) -> bool:
"""Validates the Object Storage URI."""
if not re.match(r"oci://*@*", uri):
raise InvalidObjectStoragePath(
f"The `{uri}` is not a valid Object Storage path. "
"It must follow the pattern `oci://<bucket_name>@<namespace>/<prefix>`."
)
return True
[docs] @staticmethod
def is_oci_path(uri: str = None) -> bool:
"""Check if the given path is oci object storage uri.
Parameters
----------
uri: str
The URI of the target.
Returns
-------
bool: return True if the path is oci object storage uri.
"""
if not uri:
return False
return uri.startswith("oci://")