pipelines/sdk/python/kfp/deprecated/dsl/_metadata.py

97 lines
3.8 KiB
Python

# Copyright 2018 The Kubeflow Authors
#
# 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 warnings
from .types import BaseType, _check_valid_type_dict
def _annotation_to_typemeta(annotation):
"""_annotation_to_type_meta converts an annotation to a type structure.
Args:
annotation(BaseType/str/dict): input/output annotations
BaseType: registered in kfp.dsl.types
str: either a string of a dict serialization or a string of the type name
dict: type name and properties. note that the properties values can be
dict.
Returns:
dict or string representing the type
"""
if isinstance(annotation, BaseType):
arg_type = annotation.to_dict()
elif isinstance(annotation, str):
arg_type = annotation
elif isinstance(annotation, dict):
if not _check_valid_type_dict(annotation):
raise ValueError('Annotation ' + str(annotation) +
' is not a valid type dictionary.')
arg_type = annotation
else:
return None
return arg_type
def _extract_pipeline_metadata(func):
"""Creates pipeline metadata structure instance based on the function
signature."""
# Most of this code is only needed for verifying the default values against
# "openapi_schema_validator" type properties.
# TODO: Move the value verification code to some other place
from ._pipeline_param import PipelineParam
import inspect
fullargspec = inspect.getfullargspec(func)
args = fullargspec.args
annotations = fullargspec.annotations
# defaults
arg_defaults = {}
if fullargspec.defaults:
for arg, default in zip(
reversed(fullargspec.args), reversed(fullargspec.defaults)):
arg_defaults[arg] = default
for arg in args:
arg_type = None
arg_default = arg_defaults[arg] if arg in arg_defaults else None
if isinstance(arg_default, PipelineParam):
warnings.warn(
'Explicit creation of `kfp.dsl.PipelineParam`s by the users is '
'deprecated. The users should define the parameter type and default '
'values using standard pythonic constructs: '
'def my_func(a: int = 1, b: str = "default"):')
arg_default = arg_default.value
if arg in annotations:
arg_type = _annotation_to_typemeta(annotations[arg])
arg_type_properties = list(arg_type.values())[0] if isinstance(
arg_type, dict) else {}
if 'openapi_schema_validator' in arg_type_properties and (arg_default
is not None):
from jsonschema import validate
import json
schema_object = arg_type_properties['openapi_schema_validator']
if isinstance(schema_object, str):
# In case the property value for the schema validator is a string
# instead of a dict.
schema_object = json.loads(schema_object)
# Only validating non-serialized values
validate(instance=arg_default, schema=schema_object)
from kfp.deprecated.components._python_op import _extract_component_interface
component_spec = _extract_component_interface(func)
return component_spec