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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_PERMISSIONS_PREDICTION_SERVICE_PREDICTION_MODEL_EXECUTOR_H_
#define COMPONENTS_PERMISSIONS_PREDICTION_SERVICE_PREDICTION_MODEL_EXECUTOR_H_
#include <vector>
#include "components/optimization_guide/core/inference/base_model_executor.h"
#include "components/permissions/prediction_service/prediction_model_metadata.pb.h"
#include "components/permissions/prediction_service/prediction_request_features.h"
#include "components/permissions/prediction_service/prediction_service_messages.pb.h"
namespace permissions {
// This enum backs up the 'PermissionPredictionThresholdSource` histogram
// enum.
// It indicates whether the prediction score threshold value obtained from the
// model or if it used the default fallback value.
// The enum is used for histograms, do not reorder or renumber the entries.
enum class PermissionPredictionThresholdSource {
MODEL_METADATA = 0,
HARDCODED_FALLBACK = 1,
// Always keep at the end.
kMaxValue = HARDCODED_FALLBACK,
};
struct PredictionModelExecutorInput {
PredictionModelExecutorInput();
~PredictionModelExecutorInput();
PredictionModelExecutorInput(const PredictionModelExecutorInput&);
GeneratePredictionsRequest request;
std::optional<WebPermissionPredictionsModelMetadata> metadata;
};
class PredictionModelExecutor : public optimization_guide::BaseModelExecutor<
GeneratePredictionsResponse,
const PredictionModelExecutorInput&> {
public:
PredictionModelExecutor();
~PredictionModelExecutor() override;
PredictionModelExecutor(const PredictionModelExecutor&) = delete;
PredictionModelExecutor& operator=(const PredictionModelExecutor&) = delete;
protected:
// optimization_guide::BaseModelExecutor:
bool Preprocess(const std::vector<TfLiteTensor*>& input_tensors,
const PredictionModelExecutorInput& input) override;
std::optional<GeneratePredictionsResponse> Postprocess(
const std::vector<const TfLiteTensor*>& output_tensors) override;
private:
RequestType request_type_;
std::optional<WebPermissionPredictionsModelMetadata> model_metadata_;
};
} // namespace permissions
#endif // COMPONENTS_PERMISSIONS_PREDICTION_SERVICE_PREDICTION_MODEL_EXECUTOR_H_
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