ClickHouse/programs/library-bridge/ExternalDictionaryLibraryUtils.h

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#pragma once
#include <Common/StringUtils/StringUtils.h>
#include <Core/Block.h>
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#include <base/range.h>
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#include "ExternalDictionaryLibraryAPI.h"
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namespace DB
{
class CStringsHolder
{
public:
using Container = std::vector<std::string>;
explicit CStringsHolder(const Container & strings_pass)
{
strings_holder = strings_pass;
strings.size = strings_holder.size();
ptr_holder = std::make_unique<ExternalDictionaryLibraryAPI::CString[]>(strings.size);
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strings.data = ptr_holder.get();
size_t i = 0;
for (auto & str : strings_holder)
{
strings.data[i] = str.c_str();
++i;
}
}
ExternalDictionaryLibraryAPI::CStrings strings; // will pass pointer to lib
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private:
std::unique_ptr<ExternalDictionaryLibraryAPI::CString[]> ptr_holder = nullptr;
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Container strings_holder;
};
}