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1# Copyright 2016 The TensorFlow Authors. All Rights Reserved.
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#     http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14# ==============================================================================
15"""Constants for SavedModel save and restore operations.
16
17The source of truth for these constants is in
18tensorflow/cc/saved_model/constants.h.
19
20"""
21from __future__ import absolute_import
22from __future__ import division
23from __future__ import print_function
24
25from tensorflow.python.saved_model.pywrap_saved_model import constants
26from tensorflow.python.util.tf_export import tf_export
27
28# Subdirectory name containing the asset files.
29ASSETS_DIRECTORY = constants.ASSETS_DIRECTORY
30tf_export(
31    "saved_model.ASSETS_DIRECTORY",
32    v1=[
33        "saved_model.ASSETS_DIRECTORY", "saved_model.constants.ASSETS_DIRECTORY"
34    ]).export_constant(__name__, "ASSETS_DIRECTORY")
35
36# Subdirectory name containing unmanaged files from higher-level APIs.
37EXTRA_ASSETS_DIRECTORY = constants.EXTRA_ASSETS_DIRECTORY
38
39# CollectionDef key containing SavedModel assets.
40ASSETS_KEY = constants.ASSETS_KEY
41tf_export(
42    "saved_model.ASSETS_KEY",
43    v1=["saved_model.ASSETS_KEY",
44        "saved_model.constants.ASSETS_KEY"]).export_constant(
45            __name__, "ASSETS_KEY")
46
47# CollectionDef key for the legacy init op.
48LEGACY_INIT_OP_KEY = constants.LEGACY_INIT_OP_KEY
49tf_export(
50    v1=[
51        "saved_model.LEGACY_INIT_OP_KEY",
52        "saved_model.constants.LEGACY_INIT_OP_KEY"
53    ]).export_constant(__name__, "LEGACY_INIT_OP_KEY")
54
55# CollectionDef key for the SavedModel main op.
56MAIN_OP_KEY = constants.MAIN_OP_KEY
57tf_export(
58    v1=["saved_model.MAIN_OP_KEY",
59        "saved_model.constants.MAIN_OP_KEY"]).export_constant(
60            __name__, "MAIN_OP_KEY")
61
62# CollectionDef key for the SavedModel train op.
63# Not exported while export_all_saved_models is experimental.
64TRAIN_OP_KEY = constants.TRAIN_OP_KEY
65
66# Schema version for SavedModel.
67SAVED_MODEL_SCHEMA_VERSION = constants.SAVED_MODEL_SCHEMA_VERSION
68tf_export(
69    "saved_model.SAVED_MODEL_SCHEMA_VERSION",
70    v1=[
71        "saved_model.SAVED_MODEL_SCHEMA_VERSION",
72        "saved_model.constants.SAVED_MODEL_SCHEMA_VERSION"
73    ]).export_constant(__name__, "SAVED_MODEL_SCHEMA_VERSION")
74
75# File name for SavedModel protocol buffer.
76SAVED_MODEL_FILENAME_PB = constants.SAVED_MODEL_FILENAME_PB
77tf_export(
78    "saved_model.SAVED_MODEL_FILENAME_PB",
79    v1=[
80        "saved_model.SAVED_MODEL_FILENAME_PB",
81        "saved_model.constants.SAVED_MODEL_FILENAME_PB"
82    ]).export_constant(__name__, "SAVED_MODEL_FILENAME_PB")
83
84# File name for text version of SavedModel protocol buffer.
85SAVED_MODEL_FILENAME_PBTXT = constants.SAVED_MODEL_FILENAME_PBTXT
86tf_export(
87    "saved_model.SAVED_MODEL_FILENAME_PBTXT",
88    v1=[
89        "saved_model.SAVED_MODEL_FILENAME_PBTXT",
90        "saved_model.constants.SAVED_MODEL_FILENAME_PBTXT"
91    ]).export_constant(__name__, "SAVED_MODEL_FILENAME_PBTXT")
92
93# Subdirectory where debugging related files are written.
94DEBUG_DIRECTORY = constants.DEBUG_DIRECTORY
95tf_export(
96    "saved_model.DEBUG_DIRECTORY",
97    v1=[
98        "saved_model.DEBUG_DIRECTORY",
99        "saved_model.constants.DEBUG_DIRECTORY",
100    ]).export_constant(__name__, "DEBUG_DIRECTORY")
101
102# File name for GraphDebugInfo protocol buffer which corresponds to the
103# SavedModel.
104DEBUG_INFO_FILENAME_PB = constants.DEBUG_INFO_FILENAME_PB
105tf_export(
106    "saved_model.DEBUG_INFO_FILENAME_PB",
107    v1=[
108        "saved_model.DEBUG_INFO_FILENAME_PB",
109        "saved_model.constants.DEBUG_INFO_FILENAME_PB"
110    ]).export_constant(__name__, "DEBUG_INFO_FILENAME_PB")
111
112# Subdirectory name containing the variables/checkpoint files.
113VARIABLES_DIRECTORY = constants.VARIABLES_DIRECTORY
114tf_export(
115    "saved_model.VARIABLES_DIRECTORY",
116    v1=[
117        "saved_model.VARIABLES_DIRECTORY",
118        "saved_model.constants.VARIABLES_DIRECTORY"
119    ]).export_constant(__name__, "VARIABLES_DIRECTORY")
120
121# File name used for variables.
122VARIABLES_FILENAME = constants.VARIABLES_FILENAME
123tf_export(
124    "saved_model.VARIABLES_FILENAME",
125    v1=[
126        "saved_model.VARIABLES_FILENAME",
127        "saved_model.constants.VARIABLES_FILENAME"
128    ]).export_constant(__name__, "VARIABLES_FILENAME")
129
130# The initialization and train ops for a MetaGraph are stored in the
131# signature def map. The ops are added to the map with the following keys.
132INIT_OP_SIGNATURE_KEY = constants.INIT_OP_SIGNATURE_KEY
133TRAIN_OP_SIGNATURE_KEY = constants.TRAIN_OP_SIGNATURE_KEY
134