69 lines
1.9 KiB
Python
69 lines
1.9 KiB
Python
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# Copyright 2020 The TensorFlow Authors. All Rights Reserved.
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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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# ==============================================================================
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"""Context for storing options for loading a SavedModel."""
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import contextlib
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import threading
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import tensorflow.compat.v2 as tf
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class LoadContext(threading.local):
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"""A context for loading a model."""
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def __init__(self):
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super().__init__()
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self._entered_load_context = []
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self._load_options = None
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def set_load_options(self, load_options):
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self._load_options = load_options
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self._entered_load_context.append(True)
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def clear_load_options(self):
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self._load_options = None
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self._entered_load_context.pop()
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def load_options(self):
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return self._load_options
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def in_load_context(self):
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return self._entered_load_context
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_load_context = LoadContext()
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@contextlib.contextmanager
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def load_context(load_options):
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_load_context.set_load_options(load_options)
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try:
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yield
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finally:
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_load_context.clear_load_options()
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def get_load_options():
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"""Returns the load options under a load context."""
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return _load_context.load_options()
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def in_load_context():
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"""Returns whether under a load context."""
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return _load_context.in_load_context()
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tf.__internal__.register_load_context_function(in_load_context)
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