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object.py
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object.py
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import datetime
import http
from enum import Enum
from typing import Optional, List, Dict, Union
from pydantic import (
BaseModel,
Json,
AnyUrl,
constr,
conint,
HttpUrl,
root_validator,
)
class AccessMethodType(str, Enum):
s3 = "s3"
gs = "gs"
ftp = "ftp"
gsiftp = "gsiftp"
globus = "globus"
htsget = "htsget"
https = "https"
file = "file"
class AccessURL(BaseModel):
headers: Optional[List[Json[Dict[str, str]]]]
url: AnyUrl
class AccessMethod(BaseModel):
access_id: Optional[str]
access_url: Optional[AccessURL]
region: Optional[str]
type: AccessMethodType
@root_validator
def at_least_one_of_access_id_and_url(cls, values):
access_id, access_url = values.get("access_id"), values.get("access_url")
if access_id is None and access_url is None:
raise ValueError(
"At least one of access_url and access_is must be provided."
)
return values
ChecksumType = (
str # Cannot be an Enum because "sha-256" (contains a dash) is a valid value.
)
class Checksum(BaseModel):
checksum: str
type: ChecksumType
DrsId = constr(regex=r"^[A-Za-z0-9.-_~]+$")
PortableFilename = constr(regex=r"^[A-Za-z0-9.-_]+$")
class ContentsObject(BaseModel):
contents: Optional[List["ContentsObject"]]
drs_uri: Optional[List[AnyUrl]]
id: Optional[DrsId]
name: PortableFilename
ContentsObject.update_forward_refs()
Mimetype = constr(regex=r"^\w+/[-+.\w]+$")
SizeInBytes = conint(strict=True, ge=0)
class DrsObject(BaseModel):
access_methods: Optional[List[AccessMethod]]
aliases: Optional[List[str]]
checksums: List[Checksum]
contents: Optional[List[ContentsObject]]
created_time: datetime.datetime
description: Optional[str]
id: DrsId
mime_type: Optional[Mimetype]
name: Optional[PortableFilename]
self_uri: AnyUrl
size: SizeInBytes
updated_time: Optional[datetime.datetime]
version: Optional[str]
@root_validator()
def no_contents_means_single_blob(cls, values):
contents, access_methods = values.get("contents"), values.get("access_methods")
if contents is None and access_methods is None:
raise ValueError(
"no contents means single blob, which requires access_methods"
)
return values
class Error(BaseModel):
msg: Optional[str]
status_code: http.HTTPStatus
class DrsObjectBase(BaseModel):
aliases: Optional[List[str]]
description: Optional[str]
mime_type: Optional[Mimetype] = "application/json"
name: Optional[PortableFilename]
class DrsObjectBlobIn(DrsObjectBase):
pass
class DrsObjectBundleIn(DrsObjectBase):
contents: List[ContentsObject]
Seconds = conint(strict=True, gt=0)
class DrsObjectPresignedUrlPut(BaseModel):
url: HttpUrl
expires_in: Seconds = 300
class DrsObjectOutBase(DrsObjectBase):
checksums: List[Checksum]
created_time: datetime.datetime
id: DrsId
self_uri: AnyUrl
size: SizeInBytes
updated_time: Optional[datetime.datetime]
version: Optional[str]
class DrsObjectBlobOut(DrsObjectOutBase):
access_methods: List[AccessMethod]
class DrsObjectBundleOut(DrsObjectOutBase):
access_methods: Optional[List[AccessMethod]]
contents: List[ContentsObject]