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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/searchcommon/attribute/config.h>
#include <vespa/vespalib/stllike/string.h>
#include <vespa/vespalib/util/arrayref.h>
#include <memory>
#include <utility>
#include <vector>
namespace search { class AttributeVector; }
namespace search::attribute { class Config; }
namespace search::attribute::test {
/**
* Helper class used to build and fill AttributeVector instances in unit tests.
*/
class AttributeBuilder {
private:
std::shared_ptr<AttributeVector> _attr_ptr;
AttributeVector& _attr;
public:
using WeightedInt = std::pair<int32_t, int32_t>;
using WeightedDouble = std::pair<double, int32_t>;
using WeightedString = std::pair<vespalib::string, int32_t>;
using IntList = std::initializer_list<int32_t>;
using DoubleList = std::initializer_list<double>;
using StringList = std::initializer_list<vespalib::string>;
using WeightedIntList = std::initializer_list<WeightedInt>;
using WeightedDoubleList = std::initializer_list<WeightedDouble>;
using WeightedStringList = std::initializer_list<WeightedString>;
AttributeBuilder(const vespalib::string& name, const Config& cfg);
AttributeBuilder& docs(size_t num_docs);
// Fill functions for integer attributes
AttributeBuilder& fill(std::initializer_list<int32_t> values);
AttributeBuilder& fill(std::initializer_list<int64_t> values);
AttributeBuilder& fill_array(std::initializer_list<IntList> values);
AttributeBuilder& fill_wset(std::initializer_list<WeightedIntList> values);
// Fill functions for float attributes
AttributeBuilder& fill(std::initializer_list<double> values);
AttributeBuilder& fill_array(std::initializer_list<DoubleList> values);
AttributeBuilder& fill_wset(std::initializer_list<WeightedDoubleList> values);
// Fill functions for string attributes
AttributeBuilder& fill(std::initializer_list<vespalib::string> values);
AttributeBuilder& fill_array(std::initializer_list<StringList> values);
AttributeBuilder& fill_wset(std::initializer_list<WeightedStringList> values);
// Fill function for raw attributes
AttributeBuilder& fill(std::initializer_list<vespalib::ConstArrayRef<char>> values);
/**
* Fill this tensor attribute with the given tensor values.
*
* Each string value represents the last part of a vespalib::eval::TensorSpec,
* without the tensor type as this is known from the tensor attribute.
* E.g "[1, 2]" is expanded to "tensor(x[2]):[1, 2]".
* If the string value is empty no tensor is set for that document.
*/
AttributeBuilder& fill_tensor(const std::vector<vespalib::string>& values);
std::shared_ptr<AttributeVector> get() const { return _attr_ptr; }
};
}
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