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// Copyright 2017 The TensorFlow Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// =============================================================================
#ifndef TENSORFLOW_CONTRIB_BOOSTED_TREES_LIB_UTILS_TENSOR_UTILS_H_
#define TENSORFLOW_CONTRIB_BOOSTED_TREES_LIB_UTILS_TENSOR_UTILS_H_
#include "tensorflow/core/framework/op_kernel.h"
#include "tensorflow/core/framework/tensor.h"
#include "tensorflow/core/framework/tensor_types.h"
namespace tensorflow {
namespace boosted_trees {
namespace utils {
class TensorUtils {
public:
// Read an input list into a vector of tensors.
static std::vector<Tensor> OpInputListToTensorVec(
const OpInputList& input_list);
// Reads the dense float features input list.
static Status ReadDenseFloatFeatures(OpKernelContext* const context,
OpInputList* features_list);
// Reads the sparse float features input list.
static Status ReadSparseFloatFeatures(OpKernelContext* const context,
OpInputList* features_indices_list,
OpInputList* feature_values_list,
OpInputList* feature_shapes_list);
// Reads the sparse int features input list.
static Status ReadSparseIntFeatures(OpKernelContext* const context,
OpInputList* features_indices_list,
OpInputList* feature_values_list,
OpInputList* feature_shapes_list);
// Infers the batch size by looking at the op input features.
static int64 InferBatchSize(
const OpInputList& dense_float_features_list,
const OpInputList& sparse_float_feature_shapes_list,
const OpInputList& sparse_int_feature_shapes_list);
};
} // namespace utils
} // namespace boosted_trees
} // namespace tensorflow
#endif // TENSORFLOW_CONTRIB_BOOSTED_TREES_LIB_UTILS_TENSOR_UTILS_H_
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