1 /**
2 * Copyright 2020 Huawei Technologies Co., Ltd
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "include/lite_utils.h"
18 #include <algorithm>
19 #include <vector>
20 #include <string>
21 #include <utility>
22 #include "src/tensor.h"
23 #include "src/common/log_adapter.h"
24 #ifndef STRING_KERNEL_CLIP
25 #include "src/common/string_util.h"
26 #endif
27 #include "tools/common/option.h"
28 #include "include/errorcode.h"
29 #include "include/ms_tensor.h"
30
31 namespace mindspore {
32 namespace lite {
StringsToMSTensor(const std::vector<std::string> & inputs,tensor::MSTensor * tensor)33 int StringsToMSTensor(const std::vector<std::string> &inputs, tensor::MSTensor *tensor) {
34 #ifndef STRING_KERNEL_CLIP
35 if (tensor == nullptr) {
36 return RET_PARAM_INVALID;
37 }
38
39 std::vector<StringPack> all_pack;
40 for (auto &input : inputs) {
41 StringPack pack = {static_cast<int>(input.length()), input.data()};
42 all_pack.push_back(pack);
43 }
44 return WriteStringsToTensor(static_cast<Tensor *>(tensor), all_pack);
45 #else
46 MS_LOG(ERROR) << unsupport_string_tensor_log;
47 return RET_ERROR;
48 #endif
49 }
50
MSTensorToStrings(const tensor::MSTensor * tensor)51 std::vector<std::string> MSTensorToStrings(const tensor::MSTensor *tensor) {
52 #ifndef STRING_KERNEL_CLIP
53 if (tensor == nullptr) {
54 return {""};
55 }
56 const void *ptr = const_cast<Tensor *>(static_cast<const Tensor *>(tensor))->data();
57 std::vector<StringPack> all_pack = ParseStringBuffer(ptr);
58 std::vector<std::string> result(all_pack.size());
59 std::transform(all_pack.begin(), all_pack.end(), result.begin(), [](StringPack &pack) {
60 std::string str(pack.data, pack.len);
61 return str;
62 });
63 return result;
64 #else
65 MS_LOG(ERROR) << unsupport_string_tensor_log;
66 return {""};
67 #endif
68 }
69 } // namespace lite
70 } // namespace mindspore
71