1 // Copyright 2017 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 16 #ifndef TENSORFLOW_CONTRIB_BOOSTED_TREES_LIB_UTILS_TENSOR_UTILS_H_ 17 #define TENSORFLOW_CONTRIB_BOOSTED_TREES_LIB_UTILS_TENSOR_UTILS_H_ 18 19 #include "tensorflow/core/framework/op_kernel.h" 20 #include "tensorflow/core/framework/tensor.h" 21 #include "tensorflow/core/framework/tensor_types.h" 22 23 namespace tensorflow { 24 namespace boosted_trees { 25 namespace utils { 26 27 class TensorUtils { 28 public: 29 // Read an input list into a vector of tensors. 30 static std::vector<Tensor> OpInputListToTensorVec( 31 const OpInputList& input_list); 32 33 // Reads the dense float features input list. 34 static Status ReadDenseFloatFeatures(OpKernelContext* const context, 35 OpInputList* features_list); 36 37 // Reads the sparse float features input list. 38 static Status ReadSparseFloatFeatures(OpKernelContext* const context, 39 OpInputList* features_indices_list, 40 OpInputList* feature_values_list, 41 OpInputList* feature_shapes_list); 42 43 // Reads the sparse int features input list. 44 static Status ReadSparseIntFeatures(OpKernelContext* const context, 45 OpInputList* features_indices_list, 46 OpInputList* feature_values_list, 47 OpInputList* feature_shapes_list); 48 49 // Infers the batch size by looking at the op input features. 50 static int64 InferBatchSize( 51 const OpInputList& dense_float_features_list, 52 const OpInputList& sparse_float_feature_shapes_list, 53 const OpInputList& sparse_int_feature_shapes_list); 54 }; 55 56 } // namespace utils 57 } // namespace boosted_trees 58 } // namespace tensorflow 59 60 #endif // TENSORFLOW_CONTRIB_BOOSTED_TREES_LIB_UTILS_TENSOR_UTILS_H_ 61