microsoft/onnxruntime-extensions
Publicmirrored fromhttps://github.com/microsoft/onnxruntime-extensionsAvailable
operators/text/string_concat.cc
60lines · modecode
| 1 | // Copyright (c) Microsoft Corporation. All rights reserved. |
| 2 | // Licensed under the MIT License. |
| 3 | |
| 4 | #include "string_concat.hpp" |
| 5 | #include "string_tensor.h" |
| 6 | #include <vector> |
| 7 | #include <locale> |
| 8 | #include <codecvt> |
| 9 | #include <algorithm> |
| 10 | |
| 11 | |
| 12 | KernelStringConcat::KernelStringConcat(OrtApi api) : BaseKernel(api) { |
| 13 | } |
| 14 | |
| 15 | void KernelStringConcat::Compute(OrtKernelContext* context) { |
| 16 | // Setup inputs |
| 17 | const OrtValue* left = ort_.KernelContext_GetInput(context, 0); |
| 18 | const OrtValue* right = ort_.KernelContext_GetInput(context, 1); |
| 19 | OrtTensorDimensions left_dim(ort_, left); |
| 20 | OrtTensorDimensions right_dim(ort_, right); |
| 21 | |
| 22 | if (left_dim != right_dim) { |
| 23 | throw std::runtime_error("Two input tensor should have the same dimension."); |
| 24 | } |
| 25 | |
| 26 | std::vector<std::string> left_value; |
| 27 | std::vector<std::string> right_value; |
| 28 | GetTensorMutableDataString(api_, ort_, context, left, left_value); |
| 29 | GetTensorMutableDataString(api_, ort_, context, right, right_value); |
| 30 | |
| 31 | // reuse left_value as output to save memory |
| 32 | for (int i = 0; i < left_value.size(); i++) { |
| 33 | left_value[i].append(right_value[i]); |
| 34 | } |
| 35 | |
| 36 | OrtValue* output = ort_.KernelContext_GetOutput(context, 0, left_dim.data(), left_dim.size()); |
| 37 | FillTensorDataString(api_, ort_, context, left_value, output); |
| 38 | } |
| 39 | |
| 40 | void* CustomOpStringConcat::CreateKernel(OrtApi api, const OrtKernelInfo* /* info */) const { |
| 41 | return new KernelStringConcat(api); |
| 42 | }; |
| 43 | |
| 44 | const char* CustomOpStringConcat::GetName() const { return "StringConcat"; }; |
| 45 | |
| 46 | size_t CustomOpStringConcat::GetInputTypeCount() const { |
| 47 | return 2; |
| 48 | }; |
| 49 | |
| 50 | ONNXTensorElementDataType CustomOpStringConcat::GetInputType(size_t /*index*/) const { |
| 51 | return ONNX_TENSOR_ELEMENT_DATA_TYPE_STRING; |
| 52 | }; |
| 53 | |
| 54 | size_t CustomOpStringConcat::GetOutputTypeCount() const { |
| 55 | return 1; |
| 56 | }; |
| 57 | |
| 58 | ONNXTensorElementDataType CustomOpStringConcat::GetOutputType(size_t /*index*/) const { |
| 59 | return ONNX_TENSOR_ELEMENT_DATA_TYPE_STRING; |
| 60 | }; |