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// Copyright 2024 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_SIGNATURE_MODEL_EXECUTOR_H_
#define COMPONENTS_PERMISSIONS_PREDICTION_SERVICE_PREDICTION_SIGNATURE_MODEL_EXECUTOR_H_
#include "components/optimization_guide/core/signature_model_executor.h"
#include "components/permissions/prediction_service/prediction_model_executor.h"
#include "components/permissions/prediction_service/prediction_model_metadata.pb.h"
#include "components/permissions/prediction_service/prediction_service_messages.pb.h"
#include "components/permissions/request_type.h"
namespace permissions {
// Implements SignatureModelExecutor to execute models with mapped input and
// output TfLiteTensors. Input represents various permission action rates.
// Output is between 0 and 1, which represents the probability for the
// permission to be denied.
class PredictionSignatureModelExecutor
: public optimization_guide::SignatureModelExecutor<
GeneratePredictionsResponse,
const PredictionModelExecutorInput&> {
public:
PredictionSignatureModelExecutor();
~PredictionSignatureModelExecutor() override;
PredictionSignatureModelExecutor(const PredictionSignatureModelExecutor&) =
delete;
PredictionSignatureModelExecutor& operator=(
const PredictionSignatureModelExecutor&) = delete;
protected:
// optimization_guide::SignatureModelExecutor
bool Preprocess(const std::map<std::string, TfLiteTensor*>& input_tensors_map,
const PredictionModelExecutorInput& input) override;
std::optional<GeneratePredictionsResponse> Postprocess(
const std::map<std::string, const TfLiteTensor*>& output_tensors_map)
override;
const char* GetSignature() override;
private:
RequestType request_type_;
std::optional<WebPermissionPredictionsModelMetadata> model_metadata_;
};
} // namespace permissions
#endif // COMPONENTS_PERMISSIONS_PREDICTION_SERVICE_PREDICTION_SIGNATURE_MODEL_EXECUTOR_H_
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