searchlib/src/vespa/searchlib/features/onnx_feature.h


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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.

#pragma once

#include <vespa/searchlib/fef/blueprint.h>
#include <vespa/eval/onnx/onnx_model_cache.h>

namespace search::features {

/**
 * Blueprint for the ranking feature used to evaluate an onnx model.
 **/
class OnnxBlueprint : public fef::Blueprint {
private:
    using Onnx = vespalib::eval::Onnx;
    using Optimize = vespalib::eval::Onnx::Optimize;
    using OnnxModelCache = vespalib::eval::OnnxModelCache;
    OnnxModelCache::Token::UP _cache_token;
    std::unique_ptr<Onnx> _debug_model;
    const Onnx *_model;
    Onnx::WireInfo _wire_info;
public:
    OnnxBlueprint(vespalib::stringref baseName);
    ~OnnxBlueprint() override;
    void visitDumpFeatures(const fef::IIndexEnvironment &, fef::IDumpFeatureVisitor &) const override {}
    fef::Blueprint::UP createInstance() const override {
        return std::make_unique<OnnxBlueprint>(getBaseName());
    }
    fef::ParameterDescriptions getDescriptions() const override {
        return fef::ParameterDescriptions().desc().string();
    }
    bool setup(const fef::IIndexEnvironment &env, const fef::ParameterList &params) override;
    fef::FeatureExecutor &createExecutor(const fef::IQueryEnvironment &env, vespalib::Stash &stash) const override;
};

}