1/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.
2
3Licensed under the Apache License, Version 2.0 (the "License");
4you may not use this file except in compliance with the License.
5You may obtain a copy of the License at
6
7 http://www.apache.org/licenses/LICENSE-2.0
8
9Unless required by applicable law or agreed to in writing, software
10distributed under the License is distributed on an "AS IS" BASIS,
11WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12See the License for the specific language governing permissions and
13limitations under the License.
14==============================================================================*/
15
16#include <string>
17#include <vector>
18
19#include "pybind11/pybind11.h"
20#include "tensorflow/core/lib/strings/str_util.h"
21#include "tensorflow/core/platform/types.h"
22#include "tensorflow/python/lib/core/pybind11_status.h"
23#include "tensorflow/tools/graph_transforms/transform_graph.h"
24
25namespace py = pybind11;
26
27namespace tensorflow {
28
29string TransformGraphWithStringInputs(string graph_def_string,
30 string inputs_string,
31 string outputs_string,
32 string transforms_string) {
33 GraphDef graph_def;
34 if (!graph_def.ParseFromString(graph_def_string)) {
35 MaybeRaiseFromStatus(
36 errors::InvalidArgument("Couldn't interpret input as a GraphDef"));
37 }
38
39 graph_transforms::TransformParameters params_list;
40 Status parse_status = graph_transforms::ParseTransformParameters(
41 transforms_string, &params_list);
42 if (!parse_status.ok()) {
43 MaybeRaiseFromStatus(parse_status);
44 }
45 std::vector<string> inputs = str_util::Split(inputs_string, ',');
46 std::vector<string> outputs = str_util::Split(outputs_string, ',');
47
48 Status transform_status = graph_transforms::TransformGraph(
49 inputs, outputs, params_list, &graph_def);
50 if (!transform_status.ok()) {
51 MaybeRaiseFromStatus(transform_status);
52 }
53 string result;
54 if (!graph_def.SerializeToString(&result)) {
55 MaybeRaiseFromStatus(
56 errors::InvalidArgument("Couldn't serialize output as a GraphDef"));
57 }
58 return result;
59}
60
61} // namespace tensorflow
62
63PYBIND11_MODULE(_pywrap_transform_graph, m) {
64 m.def(
65 "TransformGraphWithStringInputs",
66 [](const py::object graph_def_string, const py::object inputs_string,
67 const py::object outputs_string, const py::object transforms_string) {
68 return py::bytes(tensorflow::TransformGraphWithStringInputs(
69 graph_def_string.cast<std::string>(),
70 inputs_string.cast<std::string>(),
71 outputs_string.cast<std::string>(),
72 transforms_string.cast<std::string>()));
73 });
74};
75