clearml-server/apiserver/service_repo/endpoint.py
allegroai 6870d8aba9 Refactor service_repo
Code cleanup
2021-01-05 18:50:42 +02:00

126 lines
4.4 KiB
Python

from enum import Enum
from typing import Callable, Sequence, Text
from boltons.iterutils import remap
from jsonmodels import models
from jsonmodels.errors import FieldNotSupported
from apiserver.services_schema import schema
from apiserver.utilities.partial_version import PartialVersion
from .apicall import APICall
from .schema_validator import SchemaValidator
EndpointFunc = Callable[[APICall, Text, models.Base], None]
class Endpoint(object):
_endpoint_config_cache = {}
"""
Endpoints configuration cache, in the format of {full endpoint name: dict}
"""
def __init__(
self,
name: Text,
func: EndpointFunc,
min_version: Text = "1.0",
required_fields: Sequence[Text] = None,
request_data_model: models.Base = None,
response_data_model: models.Base = None,
validate_schema: bool = False,
):
"""
Endpoint configuration
:param name: full endpoint name
:param func: endpoint implementation
:param min_version: minimum supported version
:param required_fields: required request fields, can not be used with validate_schema
:param request_data_model: request jsonschema model, will be validated if validate_schema=False
:param response_data_model: response jsonschema model, will be validated if validate_schema=False
:param validate_schema: whether request and response schema should be validated
"""
self.name = name
self.min_version = PartialVersion(min_version)
self.func = func
self.required_fields = required_fields
self.request_data_model = request_data_model
self.response_data_model = response_data_model
service, _, endpoint_name = self.name.partition(".")
try:
self.endpoint_group = schema.services[service].endpoint_groups[
endpoint_name
]
except KeyError:
raise RuntimeError(
f"schema for endpoint {service}.{endpoint_name} not found"
)
if validate_schema:
if self.required_fields:
raise ValueError(
f"endpoint {self.name}: can not use 'required_fields' with 'validate_schema'"
)
endpoint = self.endpoint_group.get_for_version(self.min_version)
request_schema = endpoint.request_schema
response_schema = endpoint.response_schema
else:
request_schema = None
response_schema = None
self.request_schema_validator = SchemaValidator(request_schema)
self.response_schema_validator = SchemaValidator(response_schema)
def __repr__(self):
return f"{type(self).__name__}<{self.name}>"
def to_dict(self):
"""
Used by `server.endpoints` endpoint.
Provided endpoints and their schemas on a best-effort basis.
"""
d = {
"min_version": str(self.min_version),
"required_fields": self.required_fields,
"request_data_model": None,
"response_data_model": None,
}
def safe_to_json_schema(data_model: models.Base):
"""
Provided data_model schema if available
"""
try:
res = data_model.to_json_schema()
def visit(path, key, value):
if isinstance(value, Enum):
value = str(value)
return key, value
return remap(res, visit=visit)
except (FieldNotSupported, TypeError):
return str(data_model.__name__)
if self.request_data_model:
d["request_data_model"] = safe_to_json_schema(self.request_data_model)
if self.response_data_model:
d["response_data_model"] = safe_to_json_schema(self.response_data_model)
if self.request_schema_validator.enabled:
d["request_schema"] = self.request_schema_validator.schema
if self.response_schema_validator.enabled:
d["response_schema"] = self.response_schema_validator.schema
return d
@property
def authorize(self):
return self.endpoint_group.authorize
@property
def allow_roles(self):
return self.endpoint_group.allow_roles
def allows(self, role):
return self.endpoint_group.allows(role)
@property
def is_internal(self):
return self.endpoint_group.internal