47 lines
1.7 KiB
Python
47 lines
1.7 KiB
Python
# Copyright 2022 The Kubeflow Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from typing import Union
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class ContainerComponentArtifactChannel:
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"""A class for passing in placeholders into container_component decorated
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function."""
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def __init__(self, io_type: str, var_name: str):
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self._io_type = io_type
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self._var_name = var_name
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def __getattr__(self, _name: str) -> Union['placeholders.Placeholder']:
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# aviod circular imports
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from kfp.dsl import placeholders
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attr_to_placeholder_dict = {
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'uri': {
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'input': placeholders.InputUriPlaceholder,
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'output': placeholders.OutputUriPlaceholder,
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},
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'path': {
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'input': placeholders.InputPathPlaceholder,
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'output': placeholders.OutputPathPlaceholder,
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},
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'metadata': {
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'input': placeholders.InputMetadataPlaceholder,
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'output': placeholders.OutputMetadataPlaceholder
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},
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}
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if _name not in ['uri', 'path', 'metadata']:
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raise AttributeError(f'Cannot access artifact attribute "{_name}".')
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return attr_to_placeholder_dict[_name][self._io_type](self._var_name)
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