102 lines
2.9 KiB
Python
102 lines
2.9 KiB
Python
# Copyright 2024 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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"""Object for storing task outputs in-memory during local execution."""
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import collections
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from typing import Any, Dict
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class IOStore:
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def __init__(self):
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self._task_output_data: Dict[str,
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Dict[str,
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Any]] = collections.defaultdict(dict)
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self._parent_input_data: Dict[str, Any] = {}
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def put_parent_input(
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self,
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key: str,
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value: Any,
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) -> None:
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"""Persist the value of a parent component (i.e., parent pipeline)
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input.
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Args:
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key: Parent component input name.
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value: Value associated with key.
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"""
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self._parent_input_data[key] = value
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def get_parent_input(
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self,
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key: str,
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) -> None:
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"""Get the value of the parent component (i.e., parent pipeline) input
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named key.
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Args:
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key: Parent component input name.
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Returns:
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The output value.
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"""
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if key in self._parent_input_data:
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return self._parent_input_data[key]
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raise ValueError(f"Parent pipeline input argument '{key}' not found.")
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def put_task_output(
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self,
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task_name: str,
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key: str,
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value: Any,
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) -> None:
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"""Persist the value of an upstream task output.
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Args:
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task_name: Upstream task name.
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key: Output name.
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value: Value associated with key.
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"""
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self._task_output_data[task_name][key] = value
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def get_task_output(
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self,
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task_name: str,
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key: str,
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) -> Any:
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"""Get the value of an upstream task output.
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Args:
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task_name: Upstream task name.
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key: Output name.
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Returns:
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The output value.
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"""
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common_exception_string = f"Tried to get output '{key}' from task '{task_name}'"
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if task_name in self._task_output_data:
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outputs = self._task_output_data[task_name]
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else:
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raise ValueError(
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f"{common_exception_string}, but task '{task_name}' not found.")
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if key in outputs:
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return outputs[key]
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else:
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raise ValueError(
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f"{common_exception_string}, but task '{task_name}' has no output named '{key}'."
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)
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